88 results about "Green economy" patented technology

The invention provides a method for producing high-purity battery pole ferric phosphate by adopting pickle liquor, which comprises the following steps: adding iron sheet or scrap iron inside a reactive tank, pouring the pickle liquor; filtering the mixture to obtain purified ferrite solution; adding the purified ferrite solution inside a catalytic reaction kettle, and adding oxidant to perform exothermal reaction; dissolving and stirring phosphate to obtain primary ferric phosphate sizing agent; separating the primary ferric phosphate sizing agent to obtain primary ferric phosphate filter mass; dissolving and stirring the filter mass to obtain primary ferric phosphate mixed solution; heating, insulating and stirring the mixture inside an insulation reaction kettle until the mixture becomes pink; inputting all the mixed solution to the insulation reaction kettle, insulating and stirring the mixed solution for a certain period of time; and separating the ferric phosphate inside the ground paste to obtain the finished product of ferric phosphate. The invention utilizes the industrial pickle liquor as the raw material of the production method, realizes the further development of the recycling economy and the green economy due to the circulation use of the industrial waste, and greatly lowers the production cost.

The invention of Integrated Versatile and Systems Preparation of Specimens relates an open module technology which integrates synchronously the methods of protection, isolation and alteration of specimens into the “One for All” product or kit. The product or kit comprises a core module without or with Plug-in modules and a set of comprehensive protocols which can simultaneously or individually isolate systems biomolecules including DNA / ccfDNA, Large RNA / mRNA / ccfRNA, Small RNA / miRNA / ccfmiRNA, Protein, Lipid, Carbohydrates, and Metabolite versatilely from a vast variety of specimens including solid specimens and liquid specimens. The product or kit can accept new and custom Plug-in modules to expand functions and applications. The product or kit prepares specimens and biomolecules with features and benefits of high quality, easy, fast, no toxicity, safe to user and environment, low demanding, cost-effective, reducing waste, saving nature resources and protecting environment, and leads to a low-carbon and Green economy in preparation of specimens.

The invention discloses a method for preparing green and economic diosmin. The method comprises three main steps of preparation, recycling and refining. Compared with a conventional method, the method thoroughly avoids use of pyridine and inorganic base, the production environment is greatly improved, the aftertreatment is simple, iodine and solvents can be recycled, the reaction conditions are gentle, the production cost is low, and meanwhile in the method, a crude product is not refined in a classic alkali solution acidification mode instead of a mode that diosmin is separated out, then the purity of a finished product can be up to 99%, the product quality can be improved, and moreover the method is simple and convenient to operate and applicable to industrial production.

The invention relates to the technical application field of coal mine fire preventing and extinguishing, and provides economic and environment-friendly gel foam for preventing and curing coal spontaneous combustion. The economic and environment-friendly gel foam is prepared from the components in percentage by weight: 4% to 35% of water glass, 0.4% to 3% of a foaming agent, 0.1% to 3% of a foam stabilizing agent, 1% to 5% of a coagulant, and the balance of water; and the foaming agent is formed by compounding two or more anionic-type foaming agents. According to the economic and environment-friendly gel foam for preventing and curing coal spontaneous combustion, the adopted foaming agent is formed by compounding two or more anionic-type foaming agents, an adopted gelatinizing system is composed of the water glass and the coagulant, the cost is low, economy and environmental protection are realized, and the gel foam is non-poisonous and harmless during using and has good economic benefits. The obtained gel foam maintains the advantages of high fluidity and good aggregation of water-based foam before gelatinizing, and after gelatinizing, the advantages of the outstanding cooling effect and the good leak sealing effect of water glass gel are maintained; and the gel foam is good in inhibition and fire extinguishing effect, the fire source temperature, thermal radiation and CO output can be significantly reduced, fire extinguishing is stable, and the reignition phenomenon does not occur.

The invention discloses a method for catalytic synthesis of benzimidazole derivatives and belongs to the field of organic chemical synthesis. In the synthesis reaction, the molar ratio of aromatic aldehyde to o-phenylenediamine is 1: 1, the molar amount of biodegradable acidic ionic liquid catalyst is 3-5% of the use amount of aromatic aldehyde, the reaction time at room temperature is 7-30min, the volume of a reaction solvent, namely, a mixed solution of water and ethanol, is 4-6 times the molar amount of aromatic aldehyde, the reaction pressure is one atmospheric pressure, the suction filtration is performed after the reaction is completed, and obtained filter residue is dried in vacuum to obtain the pure benzimidazole derivatives. Compared with other preparation method, the method disclosed by the invention has the characteristics that the preparation process is simple, raw materials are relatively cheap, better biodegradability is achieved, the loss is low during the recycling process, the entire preparation process is environmental friendly and is simple and convenient to operate, and the industrial large-scale production is facilitated.

The invention discloses a pipe type membrane assembly coated with a cascaded structure on an inner wall, belonging to the technical field of membrane separation. The pipe type membrane assembly comprises a pipe shell, a set of pipe type membranes and two pairs of flanges, wherein the inner walls of the pipe type membranes are coated with separation layers; each pair of the flanges is composed of a fixed flange and a runner flange; each fixed flange is provided with through holes with section shapes, quantities and positions which correspond to those of the pipe type membranes; the runner flanges are provided with runner grooves; openings of the two pipe type membranes are formed in the runner grooves and are matched with the runner grooves so as to form the cascaded structure. Compared with the prior art, the pipe type membrane assembly has the advantages that small-batch online pervaporation dehydration can be realized; the contact area between organic solvent material liquid and the membrane assembly is large and the mobility of separated substances is good; the sealing performance, the temperature resistance and the solvent resistance are good; the dehydration efficiency is high and the time requirements on developing green economy are met.

The invention relates to a soil remediation agent for heavy metal pollution as well as an application method and application thereof. The remediation agent comprises phosphate and a pH (Potential of Hydrogen) regulator, wherein the phosphate comprises any one or a combination of at least two of phosphate rock powder, calcium magnesium phosphate fertilizer, bone meal, apatite and tailing phosphaterock; and the pH regulator comprises any one or a combination of at least two of oxalic acid, citric acid and ferrous sulfate. The application method of the soil remediation agent comprises the following steps: mixing the soil remediation agent and fertilizer; commonly applying to soil; and ploughing and adjusting the moisture content of the soil. The phosphate and the pH regulator are reasonablymatched, so that the soil remediation agent is green and economical under the condition that the soil fertility is ensured, and has an extremely excellent lasting remediation effect on alkaline or acidic heavy metal polluted soil.

The invention relates to a process for preparing chromic anhydride and dichromate by a carbon ferrochrome liquid phase method and belongs to the technical field of preparation of chromic compounds, ferrum-series pigments, silicone new materials, photovoltaic new materials and new-energy chemical-industry new materials from industrial metallurgical products. The process disclosed by the invention is advanced, energy-saving and environment-friendly and is free of emission of waste residues, waste gases and waste water. Products such as the chromic compounds, the pigments, new energy sources and new-energy-source silicon-carbon battery materials are produced from ferrochrome by a liquid phase method in one time without high pressure and high temperature, so that a series of novel high-end industry chains are formed, and the original situation that the ferrochrome is single in use and pure in production is thoroughly changed; the out-of-date production process that heavy pollution generated by the original chromate compound roasting production heavily harms environment is changed, and the production of chromic anhydride, dichromate and the chromic compounds can be in a energy-saving, environment-friendly and high-benefit development path; and the field of diversified development and application of ferrochrome industry is extremely extended, the international competitiveness of enterprises is greatly enhanced, and the optimized upgrading and developing of national industries are promoted, so that the process is of far reaching importance. The process meets the modern requirements on environment-friendly development of economy and has very good enterprise economic benefit, perfection benefit and social benefit.

The invention relates to a smoke temperature-controllable and low temperature-incombustible cigarette filter rod and a preparation method thereof. Polylactic acid particles with a certain particle size are uniformly embedded in filter tows for cigarettes at a certain proportion to prepare the low temperature-incombustible cigarette filter rod for solving universal problems that control of the smoke temperature is not good enough, a smoke channel is easy to be blocked, and smoke suction taste is not good enough in existing common products. The polylactic acid material, glycerol triacetate and other environment-friendly modifying additives introduced in the invention have advantages of good biocompatibility, biodegradability, safety and environmental protection; the materials not only are non-toxic to a human body, but also are in conformity with a principle of green economy; and the filter rod prepared by the method can be widely used in low temperature-incombustible cigarettes.

The invention discloses a heat pipe cyclic power machine consisting of a heat pipe and a turbine power generation system. The main body of the heat pipe consists of a pipe wall, a liquid absorption core and a working medium; the cavity body of the heat pipe consists of an evaporation cavity, a condensation cavity, a tapered pipe cavity, a vacuum heat insulation cavity and a nozzle; the liquid absorption core is arranged on the inner surface of the pipe wall of the heat pipe; the inner cavity of the lower part of the heat pipe is the evaporation cavity; the working medium is filled in the evaporation cavity; the inner cavity from the evaporation cavity to the nozzle is the tapered pipe cavity of which the cross sectional area is reduced gradually; the nozzle is formed on the upper part of the tapered pipe cavity; the vacuum heat insulation cavity is formed outside the tapered pipe cavity and the nozzle; the inner cavity of the upper part of the nozzle and the inner cavity outside the vacuum heat insulation cavity are condensation cavities; and the turbine power generation system consists of a multi-level blade, a supporting mechanism, a bearing, a rotating shaft, a magnetofluid sealing device and a power output system. The heat pipe cyclic power machine makes an actual contribution to aspects such as new energy power generation, energy saving and emission reduction, mechanical transmission and the like, and pushes the sustainable development of cyclic economy and the significant development of low-carbon economy and green economy.

Belonging to the technical field of semiconductor photocatalysis, the invention in particular relates to a black phosphorus / ZnIn2S4 composite visible-light-driven photocatalyst and a preparation method thereof. The invention adopts novel two-dimensional layered black phosphorus and shape controllable petal-shaped ZnIn2S4 as the catalyst, and close interfacial combination of the black phosphorus and ZnIn2S4 can be realized through continuous mechanical mixing. The composite catalyst has the characteristics of good dispersity, strong interfacial interaction, excellent hydrogen production performance and the like. The efficient performance of the composite catalyst in water photolysis for hydrogen production benefits from the effective inhibition of photoelectron-hole between black phosphorusand ZnIn2S4and effective separation of photoinduced charge. At the same time, the black phosphorus / ZnIn2S4 composite catalyst is easy to recover, still shows high activity after repeated recycling, and meets the requirements of green economy.

The invention provides a green, cheap and environment-friendly chemical mechanical polishing method for optical quartz glass, and belongs to the field of ultra-precision machining of hard and brittlematerials. Firstly, quartz glass is ground, and then chemical mechanical rough polishing and fine polishing are conducted in sequence. During rough polishing, polishing liquid is composed of alpha-aluminum oxide abrasive materials with the average particle size ranging from 30 nm to 100 nm and deionized water, and a polyurethane pad is selected as the polishing pad. During fine polishing, the polishing solution is composed of a ceramic abrasive material, a dispersing agent, a pH regulator and deionized water. The average particle size of the ceramic grinding material is 20-50nm, and the weightpercentage of the ceramic grinding material is 1-3%; the weight percentage of the dispersing agent is 0.1-2%; the pH regulator is citric acid, acetic acid and malic acid, and the pH value is regulated to 4-6. The polishing pad is a frosted leather pad. After polishing, the surface roughness Ra of the quartz glass reaches 0.6-0.75 nm, and efficient ultra-low-damage ultra-precision chemical mechanical polishing of the quartz glass is achieved.

The invention discloses a method and apparatus for thoroughly treating oily sludge in a whole process based on the process principle of a chemical thermal washing method. The treatment method mainly comprises the following steps: (1) removing impurities, adding chemicals and water, and demulsifying after mixing is completed; (2) primarily recycling an oil phase to obtain a mixed solution; (3) recycling a residual oil phase in the mixed solution after ultrasonic and ozone oxidation advanced treatment is performed; and (4) concentrating and dehydrating the obtained mixed solution, and completingthe treatment. The efficient and continuous oily sludge treatment method and apparatus in the invention realize three-phase separation of oil, water and sludge in the oily sludge, and the oil contentof the treated sludge can be reduced to lower than 2 percent, thereby meeting the national discharge standard; moreover, most of the oil phase components in the oily sludge can be recycled, and the recycling rate reaches up to 98 percent; and the separated water phase is completely recycled, the residual chemicals and heat in the waste water are effectively utilized, the load of subsequent watertreatment is reduced, and the treatment effects of energy conservation, emission reduction and green economy are achieved.

A power supply network monitoring system for solar street lamps disclosed by the invention belongs to the field of solar energy technology. The monitoring system comprises a monitoring subsystem, a computer subsystem, a software program subsystem, a wireless communication subsystem, a network management subsystem and a solar generating, storing, supplying and controlling subsystem which is in wide-area cluster-type distribution and is composed of N solar photovoltaic panel generating, storing and supplying units and control units of the N solar photovoltaic panel generating, storing and supplying units; each solar photovoltaic panel generating, storing and supply unit and each solar street lamp thereof can be automatically collected, monitored and run on line by a network monitoring module; the monitoring module can realize network communication, contact and exchange of monitored actual condition information through wireless communication and each monitoring point and monitoring center and the like of the solar street lamp power supply network monitoring system. The technical scheme provided by the invention integrates modern technologies such as solar energy, computer, microelectronics and networking and the like into a whole, has reasonable design concept and complete technical configuration, is an innovative achievement in the solar energy technical field and can make a contribution to low carbon, environmental protection and green economy development, thus the monitoring system is worth applying and popularizing.

The invention discloses a one-dimension Znl-xCoxS solid solution and carbon nano-composite photocatalyst and a preparation method thereof. The preparation method comprises the following steps: synthesizing a layered dual-metal zinc-cobalt hydroxide precursor of salicylic acid root intercalation from a zinc salt, a cobalt salt and salicylic acid serving as raw materials according to a co-precipitation method; performing a gas-solid phase reaction on the precursor and H2S gas; and roasting in an inertia gas atmosphere to obtain the one-dimensional ZnL-xCoxS solid solution and carbon nano-composite photocatalyst. The catalyst has high stability and a large specific surface area, and nanoparticles of the solid solution are uniform in sizes and have small particle diameters being 3-5 nanometers. Graphite carbon is taken as a substrate, so that the one-dimension feature of the material is kept, and the conductivity and stability of the material are improved remarkably. The catalyst has high photocatalytic performance, and particularly has remarkable photocatalytic activity under visible light. Compared with the conventional synthetic method, the preparation method has the advantages that a template agent and a modifier do not need to be introduced, and the photocatalyst has the characteristics of environmental friendliness, economical efficiency, adoption of readily-available raw materials, low cost, and suitability for large-scale production.

The invention discloses a system device for preparation of fresh water and salt by all-weather seawater self-pumping power generation for heating and condensation; according to the system device, a dual-use waterwheel pulse pump can improve the water level to more than one hundred meters by use of single set or multiple sets of flowing water-pushed series-connected pumps, the dual-use waterwheel pulse pump is actually an unpowered water pump for providing water used for farmland of a no-power region, or for a shaft-type hydroelectric generator for all-weather power generation and for all-weather seawater desalting for preparation of the fresh water and the salt; When seawater flows past a gravity evaporation condensation vacuum pump, the seawater can be instantaneously evaporated or condensed, salt particles in seawater desalination steam can be collected by self-gravity descending, high temperature steam and a low temperature vapor phase collide to condense into the fresh water to flow out, and the fresh water flows past a connected water purifier and an ozone sterilizer to produce safe drinking water, the seawater can be instantaneously evaporated or condensed into the fresh water without any electric energy, seawater desalination equipment is simple in manufacturing, low in cost, high in seawater desalination efficiency and low in seawater desalination cost, can be widely popularized and applied, is a most effective and green economic approach and strategic guideline for thorough seawater desalination of water resources of the whole world, and for attracting foreign capital investment and solving domestic water resources.

The invention provides a method for preparing high-quality levofloxacin hydrochloride, comprising 3-(2-hydroxyl-1-methyl-ethylamino)-2-(2,3,4,5-tetrafluorobenzoyl)- Preparation of ethyl acrylate, preparation of levocyclamic acid and preparation of levofloxacin hydrochloride, the method is simple, the production cost is low, the product yield is high, the quality is good, the green economy is environmentally friendly, the discharge of three wastes is small, and most of the by-products are effectively separated and recovered at the same time Utilization is convenient for industrialized production and has great popularization significance.

The invention discloses a wind energy and geothermal energy cooperative power generation system which consists of a wind energy power generation system and a geothermal energy heat tube power generation system. The geothermal energy heat tube power generation system is arranged on the lower part of a wind energy power generation system tubular tower; the wind energy power generation system consists of an impeller, a cabin, a tubular tower and a turbine generator set; the geothermal energy heat tube power generation system consists of a geothermal energy heat tube and a turbine power generation system; the geothermal energy heat tube is a vacuum sealing device which consists of an evaporation section, a heat-insulating section and a condensation section of the heat tube; and the turbine power generation system consists of a plurality of blades, a rotating shaft, a magnetic fluid sealing device and a generating set. In the cooperative power generation system, a geothermal resource is not required to be extracted and recharged; both wind energy and geothermal energy are effectively utilized; the system has the advantages of environmentally-friendly operation and maintenance, continuous, stable and effective power generation; actual contribution is made to the aspects such as new energy development and utilization, energy conservation, emission reduction and the like; and sustainable development of recycling economy and significant development of low-carbon economy and environmentally-friendly economy are promoted.

The present invention provides a medical image diagnostic method. The method comprises the steps of: collection of medical images, medical image preprocessing, classification analysis, obtaining of aprecious medical image and comparison assessment. A double convolutional neural network is employed to perform sketching of the medical images in batches, and the medical image diagnostic method can be widely applied to a small image data set to reduce the consumption of the calculation resources and obtain very high accuracy; a FPGA (Field Programmable Gate Array) is employed to achieve the wholedesign of a medical deagnostic tool, the power consumption of the FPGA is low to meet the energy conservation and emission reduction green economy development concept; the medical images with different types of diseases, different area crowds and different medical technical devices are employed to obtain corresponding parameters of a second-level neural network model so as to greatly facilitate doctors' usage and improve the diagnosis effect; and the economy cost of the neural network calculation unit based on the FPGA is low, so that medical image diagnostic method is suitable for each department of a general hospital and is conveniently applied to township-level medical institutions.

The invention discloses beta-keto sulfone derivatives as well as a preparation method and application thereof. The preparation method includes the following step: performing a reaction by using olefinazide and sulfonyl hydrazide as starting material, CuSO<4>.5H<2>O as a catalyst and water as a reaction solvent at 90 DEG C for 2-4 h. According to the method provided by the invention, the catalystCuSO<4>.5H<2>O is used in the reaction system, so that the reaction is effectively promoted, a self-coupling reaction of the sulfonyl hydrazide is inhibited, and the yield of the reaction is improved;meanwhile, the reaction reagents and catalyst used in the method are stable, cheap and easy to obtain, mass production is facilitated, and a novel effective way is provided for construction of the structures; the reaction solvent is water, and has the advantages of green economy and environmental protection; and in addition, results of activity experiments show that the product can inhibit 11 beta-hydroxysteroid dehydrogenase to a certain extent, so that the preparation method and the product have important application significance in the field of medicine.

The invention relates to a method for mediating proteins to synthesize and modify a cerium nano material. The method is characterized in that serum protein with certain concentration is mixed with cerous nitrate to prepare a precursor solution of the cerium nano material; the precursor solution has nucleation growth under a potassium hydroxide solution alkaline condition; a reaction temperature and reaction time are further controlled, so that a cerium nano cluster, cerium nano particles and a cerium nano chain material are obtained in a controlled manner, and the cerium nano cluster, the cerium nano particles and the cerium nano chain material have good uniformity, dispersion and stability. Corresponding characterization analysis is carried out on the nano material and the surface thereof, so that BSA or HAS for correspondingly modifying the surface of the cerium nano material has excellent biological compatibility, has a great number of modifying functional groups such as carboxyl and an amino group, and further can graft and modify other functional molecules, and therefore, a foundation is laid for further applying the method in a living body. According to the method, reaction is green and economical, a control way is flexible and easily controlled, and repeatability is strong.

The invention provides a construction method for a reinforced supporting structure for a foundation pit ramp under a heavy-load passing condition. The construction method comprises the following steps: A, road surface construction for the foundation pit ramp; B1, sidewall supporting structure construction for the foundation pit ramp; B2, sidewall steel latticework installation for the foundation pit ramp; and B4, diagonal bracing beam installation. The construction method has the advantages of being safe and rapid, advanced in technology, capable of being efficiently recovered, green and economic, capable of saving resources, and the like in the aspects of design construction concept, structure system stress, construction manner, recovery value and the like of the reinforced supporting structure for the foundation pit ramp, and is capable of being successfully applied to a supporting project for the foundation pit ramp under the heavy-load passing condition, and considerable in development and application prospect.

The invention belongs to the technical field of building construction equipment, and relates to a prefabricated pipe rack push construction device. A track is laid in a groove of a pressure device, aprefabricated pipe rack is placed on an auxiliary tool, the pressure device is connected with the auxiliary tool, the auxiliary tool and the prefabricated pipe rack are pushed into a fixing frame through the pressure device, the inner side walls of the left side, right side and upper portion of the fixing frame are provided with laser displacement meters, the inner side walls on the left side andthe right side of the fixing frame are each symmetrically provided with two deviation correctors, the two deviation correctors on each side are arranged on the outer sides of the corresponding laser displacement meters, and the deviation correctors are provided with deviation correction guide rods. The prefabricated pipe rack push construction device is simple in structure, convenient to operate,safe to use, capable of accelerating the construction speed, capable of greatly saving labor and construction time, low in manufacturing cost, capable of accelerating the construction speed and meeting construction requirements of Green economy and environmental protection and applicable to undercutting method prefabricated pipe rack construction.

The invention discloses a synthesis method of clotrimazole, and belongs to the technical field of chemical synthesis. According to the method, 2-chlorotrityl chloride and imidazole are taken as raw materials, hexafluoroisopropanol is taken as a solvent, and reaction is performed in an alkali environment. The method has the advantages that the raw materials 2-chlorotrityl chloride and imidazole areeasy to get; the reaction can be performed at room temperature, and the reaction condition is mild; other than previous multistep reaction, the method adopts one-step synthesis and is simple to operate; the method is high in reaction activity, the yield reaches 92 percent, and the raw materials are completely converted; products are convenient to separate, and the reaction has green economical efficiency, and is environmentally friendly.

The invention relates to a one-off manufacturing technology of chromium compounds and new products in many industries by a liquid phase method of ferrochromium and belongs to the technical field of new chemical materials with metallurgical products used as raw materials to manufacture chromium compounds, iron series pigments, new silicon materials, new photovoltaic materials and new energy. The technology provided by the invention is advanced, energy-saving and environmentally friendly, and there is no discharge of waste residues, exhaust gas or wastewater. High temperature and high pressure are not required. Ferrochromium is used as a raw material to produce products such as chromium compounds, pigments, new energy, new silicon carbon battery materials and the like by a liquid phase method at a time, thus forming a series of new high-end industrial chains and thoroughly changing situations of single application and pure production of ferrochromium in the prior art. The backward production technology that original chromate compound roasting production generates high pollution which is greatly harmful to the environment is changed. Production of chromate compounds has embarked on an energy-saving and high-efficiency development road. Diversified development and application fields of the ferrochromium industry are greatly expanded, international competitiveness of enterprises is greatly enhanced and national industrial upgrading and optimization and development are promoted. The technology provided by the invention is of great significance. The technology accords with requirements of modern green economic development and has great enterprises economic benefits, perfection benefits and social benefits.

The invention belongs to the field of organic fine synthesis, and relates to a method for preparing a biphenyl derivative by using a microchannel continuous flow reactor. The method comprises the steps: adopting the microchannel continuous flow reactor, feeding a grignard reagent, halogenated benzene, a solvent and a catalyst in a slurry feeding mode, and performing a reaction at 50-200 DEG C anda pressure of 0.1-2.0 MPa so as to obtain the biphenyl derivative. The preparation process of the biphenyl derivative has the characteristic of continuous feeding, the reaction space is a channel witha depth of 100 [mu]m-10 mm, and the reaction temperature and pressure can be set flexibly when the reaction is compared with conventional batch reactions, the reaction time is shortened from severalhours to several tens of seconds, a high reaction yield, few side reactions and a good mass transfer effect are achieved, and the safety problem brought by fierce heat release of reactions and other problems are solved; and the method can be applied to large-scale production of biphenyl derivatives, and provides a green economical and environment-friendly industrial preparation route for the compounds.

The invention relates to a preparation method of a chlorinated neonicotinoid insecticide and particularly relates to a method for synthesizing a thiacloprid active compound and co-producing carbon powder. The method is characterized by including the steps of putting water with the weight being 3-6 times that of lime nitrogen into a reaction kettle, adding lime nitrogen powder under the condition of stirring, dropwise adding carbon disulfide with the weight being 30-80% of that of the lime nitrogen at 5-20 DEG C after the completion of adding, continuously stirring at 30-43 DEG C until carbon disulfide backflow does not exist in the reaction kettle after the completion of dropwise adding, then carrying out thermal filtration, and collecting a filter cake and filtrate respectively. The method provided by the invention avoids the use of cyanamide which is high in cost and easy to aggregate as a raw material, uses the lime nitrogen which is cheap and easy to obtain for replacing the cyanamide, and recycles slag, thus providing an industrial synthesis way of the thiacloprid active compound which is green and economical, and has good environmental benefits.

The invention relates to the technical field of beverage preparation, in particular to a preparation method of carambola juice. The preparation method comprises the following preparation steps of (1) taking fresh carambola, thoroughly cleaning the fresh carambola, adding deionized water, and performing pulping so as to obtain pulp; (2) performing extra-high pressure treatment on the pulp, and performing depressurizing to normal pressure so as to obtain an extract; (3) performing centrifugal separation on the extract so as to obtain a supernatant, and performing micro filtration so as to obtain a filtrate; (4) adjusting the sugar degree and a pH value; and (5) performing extra-high pressure sterilization, and performing filling so as to obtain the product of the carambola juice. According to the method disclosed by the invention, in the extraction process, the water is used as a solvent, so that the method is green, economic and environmentally-friendly, and the effect of the prepared carambola juice in strengthening the disease resistance of organisms is improved.

The invention discloses a green preparation technology of phthalic dicarboxaldehyde, which takes 1, 3 -phthalan as raw material, hydrogen peroxide as an oxidant and immobilized rare earth metal and polyoxometallate (heteropoly acid) as catalysts, and water as solvent, and under the invigorating effect of ultrasonic field, the phthalic dicarboxaldehyde product is obtained through the processing steps of catalytic oxidation, ligarine recrystallization, suction filtration and the like. Compared with the prior art, the green preparation technology provided by the invention has the advantages as followings: the process reaction conditions are mild, the preparation process is simple, raw materials are easy to access, the reaction time is short, the product purity is high, zero contamination, small energy consumption and green economy are achieved, and the green preparation technology facilitates the popularization and the use of phthalic dicarboxaldehyde in the industries such as chemical engineering, medical and the like.