1404results about How to "Reduce pressure on environmental protection" patented technology

The invention discloses a comprehensive method for synthesizing glufosinate and analogue thereof by using phosphorus trichloride, triethyl phosphate and chloromethane as initiative raw materials. The method comprises the following steps of: performing Grignard, disproportionation and coupling; introducing a proper amount of hydrogen halide; and synthesizing to obtain two intermediates, namely methyl diethyl phosphate (intermediate I) and methyl phosphinate (intermediate II), wherein the two intermediates can synthesize the glufosinate and the analogue thereof. By the method, the glufosinate and the analogue thereof are synthesized by completely utilizing the methyl diethyl phosphate and the methyl phosphinate synthesized by a Grignard route; yield is increased; production cost is reduced; and three wastes are reduced.

The invention relates to a dye acidic waste water treatment method and device. The method comprises steps as follows: separately collected dye waste acid is subjected to distilling concentration, neutralization, adsorption, micro-electrolysis, coagulative precipitation, activated carbon column adsorption, concentrating crystallization and separation through an automatic control system to prepare sodium (ammonium) sulfate or sodium (ammonium) chloride; and the distilled water is subjected to advanced treatment to reach the industrial reuse water standard, enters an industrial water storage tank, and is circulated to the dye production procedure. The method and device are especially suitable for industries generating abundant waste sulfuric acid and waste hydrochloric acid, such as production of dyes, titanium white and the like. The abundant waste sulfuric acid and waste hydrochloric acid generated in the production process can be utilized to prepare sodium (ammonium) sulfate or sodium (ammonium) chloride, thereby recycling acidic waste water, and changing wastes into valuable substances; and meanwhile, the distilled water can be circulated into industrial production after advanced treatment, thereby reducing the waste water discharge.

The invention discloses a method for recycling carbon and electrolytes from a waste cathode carbon block of an aluminum electrolytic cell. The method comprises the following steps that 1, the cathode carbon block is crushed and grinded; 2, cathode carbon powder obtained from the cathode carbon block subjected to crushing and grinding in the step 1 is stirred and leached in alkali liquor and then filtered, so that a filter cake A1 and filtrate B1 are obtained; and a precipitating agent is added into the filtrate B1, so that a filter cake A2 and filtrate B2 are obtained after filtering is conducted; and 3, the filter cake A1, the filter cake A2, a flotation medium and flotation reagents are subjected to mixing and pulp conditioning, and thus the carbon and electrolytes are obtained through flotation and separation; the flotation reagents comprises the collecting agents, the foaming agents and the conditioning agents; the collecting agents are composed of the collecting agent C1 and the collecting agent C2 at the mass ratio of 0.65-0.75:0.25-0.35; the collecting agent C1 is selected from at least one of coal tar, heavy oil, kerosene and diesel oil; and the collecting agent C2 is selected from at least one of dodecylamine, sodium dodecyl benzene sulfonate, sodium oleate and sodium dodecyl sulfate. According to the method for recycling the carbon and the electrolytes from the waste cathode carbon block of the aluminum electrolytic cell, the carbon powder and the electrolytes are effectively separated and recycled from the waste cathode carbon block.

The invention relates to a preparation method of an inorganic composite white pigment with high covering power. The method comprises the steps of: taking titanium white powder and white mineral powder or composite white mineral powder as raw materials; taking a wet ultrafine stirring grinder or a sand miller as a compound device; performing segmented wet ultrafine grinding and compounding to the titanium white powder and the white mineral powder by adding a certain quantity of pH adjusting agent and dispersing agent; and drying and mechanically dispersing and depolymerizing size after ultrafine grinding and compounding to prepare the inorganic composite white pigment which can be used by replacing the titanium white powder, wherein the performance indexes such as the granularity, the whiteness and the covering power, and the like, of the inorganic composite white pigment are as the same as or similar with the granularity, the whiteness and the covering power of the titanium white powder. The method has simple preparation technology, lower preparation cost and cleaning preparation process.

An IOT anti-counterfeiting wine bottle comprises a wine bottle body which comprises an upper bottle body and a lower bottle body, wherein the upper bottle body and the lower bottle body are combined with each other. The upper bottle body and the lower bottle body form an outer shell of the wine bottle body, an inner container with a sealed cover is arranged in the outer shell, and meanwhile a control device, a locking device and a battery are further arranged in the outer shell. The control device is connected with a host of a far-end authentication center through a network, the control device sends a control instruction to the locking device, and the locking device enables the upper bottle body and the lower bottle body to be fixed. According to a using method of the IOT anti-counterfeiting wine bottle, networking certification is conducted on the wine bottle to confirm the authenticity, the wine bottle is opened through the fact that the authentication center sends an instruction in a long distance mode, fake products which are produced in an original imitation mode or in a mode of purchasing the wine bottle by counterfeiters can not be authenticated by the authentication center, and finally faking can not be implemented.

The invention discloses a soft soil curing agent prepared by means of industrial residues. The curing agent is prepared from, by weight, 35-65% of steel slag, 30-50% of mineral waste residues, 10-30% of desulfurization gypsum, 2-6% of sulphoaluminate cement clinker, 2-4% of ordinary portland cement clinker, 2-5% of aluminum dregs and 0-5% of cement. The sum of the weight percentages of all the components is 100%. The soft soil curing agent is prepared by fully utilizing industrial residues of heat-engine plants, steel works and aluminum electrolysis enterprises, unconfined compression strength is high during soft soil foundation reinforcement, waste is recycled, and economic benefits and environmental protection benefits are high.

The invention discloses a method for synthesizing degarelix, wherein an amino resin protected with Fmoc is used as a raw material; according to a solid-phase synthesis method, DIC / HOBt (N,N'-diisopropylcarbodiimide / 1-hydroxybenzotrizole) is used as a coupling agent for transpeptidase reaction; 4-serine uses tert-butyl dimethyl to replace tertiary butyl for protection protecting hydroxyl; a hydroorotic acid fragment connected with 4-amino of 5-phenylalanine benzene ring is protected with triphenylmethyl at first, and then introduced, so that the rearrangement side reaction is prevented; and since D-4Aph (Cbm) is used for replacing D-4Aph (Cbm-tBu), a t-Bu removal difficulty is prevented and the occurrence of the side reaction is reduced. A synthesis technology of the method for synthesizing degarelix is simple in steps, easy to control, small in environment pollution and high in yield, thereby being applicable for industrial production.

The invention provides a method for improving the physical and mechanical properties of oxidation-degummed ramie. The method comprises the following steps of: preparing a degumming solution by using caustic soda, an oxidant, a surfactant, a fiber expanding agent, an oxidant stabilizer and water; mixing raw ramie and the degumming solution, heating, and boiling off to sufficiently remove colloid; and then cooling, adding a reduction softener, maintaining the temperature, oiling and drying after washing with clear water, and opening and carding to obtain textile ramie fiber subjected to reduction modification. According to the method disclosed by the invention, the defects of the prior art are overcome; and the reduction softener is added to raffinate obtained after oxidation-degumming, oxycellulose produced in the degumming process is reduced and softened, so that the physical and mechanical properties, such as strength, length, elongation and softness of the fiber are improved, the working procedures are simplified, and pollution and environmental pressure are lightened.

The invention relates to a comprehensive treatment method for mother liquid synthesized by oxidizing glyphosate by N-(Phosphonomethyl) iminodiacetic acid with an IDA (Iminodiacetic Acid) method. The mother liquid is treated by a condensed system to obtain condensed liquid and thin liquid, wherein the condensed liquid subjected to formaldehyde removal is used for preparing a gyphosate solution with high content or carrying out oxidation treatment, the treated thin liquid can be used for gyphosate production or biochemical treatment. The comprehensive treatment method not only recovers gyphosate, but also reduces the pollution to the environment.

The invention discloses a petroleum coke desulfurizing method. The petroleum coke desulfurizing method comprises the following steps: heating petroleum coke to 400-700 DEG C for precalcining for a certain time first, and then in an ammonia gas atmosphere, heating green petroleum coke to 700-1000 DEG C and preserving heat for a certain time so as to achieve a desulfurizing aim. By the petroleum coke desulfurizing method, most of sulfur in the petroleum coke is removed under the conditions that more heat is not consumed and the microstructure and physical and chemical properties of the petroleum coke are not affected, so that the sulfur content of the petroleum coke is greatly reduced, the quality of the petroleum coke is improved, and the environmental pressure of a carbon product industry with the petroleum coke as a raw material is greatly reduced; therefore, the petroleum coke desulfurizing method is wide in application prospect.

Disclosed are a glyphosate and its preparing method oxidate oxidate to acquire mixed liquid of glyphosat; bifter hydration, add into glyphosate agent glyphosate preparation to change it into salt, then add surface active agent as assistant into the mixed liquid of salt and the surface active agent is one or several ones from nonion surface active agent or amphoteric surface active agent or organic silicon surface active agent, mix them to be average, acquiring the . In the course, there is no need to separate glyphosate technical grade, while preparation the with the glyphosate technical gradedirectly, which has decreased the amounts of equipment and worker, without drainage of glyphosate mother liquid, it completely makes use of glyphosate technical grade, as well as reduces waste water, benefiting for environmental protection.

The invention discloses a method for producing a novel degradable material by manioc dreg and pot ale and comprises the following steps: the manioc dreg or the pot ale is purified, ground, cleaned, drained and mixed with dry paper pulp according to the weight proportion of a to b; wherein, the a lies between 2 and 5, and the b lies between 5 and 8; a papermaking addition agent is added, and the mixture is molded and parched, thus obtaining the degradable material product. Paper pulps of vegetable fiber such as waste newspapers, carton paper, paperboards and other paper pulps of vegetable fiber materials can be taken as the dry paper pulp. The method for producing the novel degradable material by the manioc dreg and the pot ale adequately utilizes wastes of manioc resources such as the manioc dreg, the pot ale to produce the novel industrial degradable material with good quality and low cost, replaces degradable materials of cellular plastics, and not only solves the difficult processing problem of wastes and changes wastes into valuable, but also effectively generates the actions of controlling and eliminating the white pollution; furthermore, the method for producing the novel degradable material by the manioc waste and the pot ale has uncomplicated technique, short production period, low cost, low energy consumption, simple and convenient operation, high product stability and good economic, social and environment-protective benefits.

The invention discloses a method for producing corrugated paper and bobbin paper by manioc waste and lees. The manioc waste and the lees are purified, ground, washed, and dehydrated respectively; impurities are removed; plant fiber is retained; the mixture of treated manioc waste and lees is mixed with waste paper stock according to the proportion of 1-7 to 3-9; and a paper-making additive is properly added to produce the corrugated paper and the bobbin paper. The method fully utilizes production wastes, namely the manioc waste and the lees to produce good and cheap corrugated paper and bobbin paper. The methd has the advantages of adequate production raw materials, low cost, simple and convenient operation, good product stability, large market potential, and high product profit, prolongs industrial chains of the manioc waste and the lees, solves the waste utilization problem of the prior manioc waste and lees, also reduces the environmental protection pressure of enterprises, improves the economical benefit of the enterprises, drives surrounding villages to be commonly prosperous, and has good social benefit and environmental protection benefit.