37results about How to "Wide range of PH value" patented technology

The invention discloses a composite powered calcium sulfate sewage treatment agent and a method for preparing the same. The sewage treatment agent comprises the following materials in weight portion: 5 to 10 portions of tartaric acid, 3 to 5 portions of malic acid, 60 to 70 portions of calcium sulfate, 10 to 15 portions of magnesium carbonate, 10 to 20 positions of calcium carbonate, 10 to 20 portions of ferric chloride, 10 to 20 portions of calcium oxide and 2 to 3 portions of polyacrylamide. The method is to mix the materials. Compared with the prior art, the sewage treatment agent and the method have the advantages of multifunction, high efficiency, environment protection, quick sewage treatment speed, short treatment time, broad-spectrum and high-efficiency removal of various pollutants and harmful substances and strong adaptively to the sewage muddiness, wide pH value range and wide water temperature change of the sewage. The sewage treatment agent and the method have high alkalization degree, small corrosion, convenient production and no pollution in the production process, simple product package, convenient transportation and low composite cost.

The invention relates to a medicament for fast preventing the malignant float grasses and the water algae and the application thereof, belonging to the pesticide formulation technical field, which is characterized in that the medicament comprises from 40% to 90% of a plant vinegar fluid, from 5% to 35% of an organic acid, and from 1% to 20% of pesticide addition agent, the plant vinegar fluid is either a bamboo vinegar fluid, a wooden vinegar fluid, and (or) grass vinegar fluid, the organic acid is one of or a mixture of more than one of a formic acid, an acetic acid, a propionic acid, a 2-methyl propionic acid, an ethyl acetic acid, a 4-hydroxy ethyl acetic acid, a pentanoic acid, a benzoic acid, a 2,6-hydroxy benzoic acid, a 3-hydroxy-4-methoxy benzoic acid or a 3-methoxy-4-hydroxy benzoic acid. The medicament has the advantages of fast destroying the chlorophyll, stopping the plant to do the photosynthesis, commonly killing the water algae in a half hour and the float grass in three hours by spraying, having low production cost, strong killing capability, wide adaptable temperature range and pH value range. The active component of the invention has the advantages of being the natural-occurring substance, no corrosion, nonirritant, safe use, and reliability, easy biodegradation, and no secondary pollution.

The invention discloses a method for preparing a paper making wet end chemical addition agent by using cassava residue as a raw material; the method comprises the following steps: the cassava residue is beaten and then is washed and dispersed by clean water; after suspended cassava barks and crude fibers are removed, sedimental cassava residues and fine fibers are dehydrated for standby application, are mixed with the crude fibers obtained through winnowing and separation of the removed cassava barks and the crude fibers and are diluted into slag pulp; then the slag pulp is jointly processed by sodium hypochlorite and hydrogen peroxide; the processed slag pulp is ball-milled into powder; a modified liquid reagent is used for carrying out chemical modification on the powder, a modified synthesis mixture is washed and filtrated by an organic solvent and finally filter cakes are dried and powdered so as to obtain the modified cassava residue product. In the method, the process is simple, devices are matured, and simultaneously as a multiple-effect paper making wet end chemical addition agent, the prepared modified cassava residue product is used for reinforcing paper pulp and helping retention and filtration, has higher economic value and provides a positive approach for effectively solving environmental pollution caused by the abandon of cassava residues.

The invention discloses a high-efficiency mould-proof preservative special for preserving garlic stems, which consists of the following components in percentage by weight: 1 to 5 percent of chitosan, 0.05 to 0.1 percent of nipagin ester, 0.001 to 0.01 percent of natamycin, 0.05 to 0.1 percent of thiabendazole and the balance of water. The garlic stem preservative has low cost and is convenient to apply and high-efficiency and safe; by combining measures and technology such as low temperature, spontaneous modified atmosphere packaging and the like, the garlic stems treated by the preservative are bright green, have tender tissues and are still fresh after being stored for 6 to 8 months, and mould does not grow in garlic involucre and strips; the commodity rate reaches 95 percent; and the preservation effect is good.

The invention provides a safer, high-efficiency and multifunctional preparation method of composite decoloration adsorbent for shellfishes, which is used for realizing decoloration of shellfish products and heavy metal adsorption so as to reduce heavy metal content and color of shellfish cooking liquid, mussel cooking liquid can be sufficiently developed and utilized by the aid of the method, and injury to human bodies due to excessive heavy metal is avoided.

The invention relates to food anticorrosion technical field, in particular to a natural food anticorrosion preservative prescription and the preparation method. The invention is characterized in that the prescription comprises pure bamboo vinegar of 1 to 5% total acid and chitosan of 80 to 99% deacetylation degree (weight percentage); pure bamboo vinegar: 92 to 99%, chitosan: 1 to 8%; the vinegar and chitosan of the proportion is added into the reator and is mixed well; the mixed solution in the reator is agitated in the normal temperature or the raised 100 DEG C; the agitating speed is 100 to 200 time / m; the preservative is formed after 5 to 30m dissolution. The natural food anticorrosion preservative has the advantages that no toxic side effect exist; the application scope is wide; the cost is low; the preservative can make sterilization, bacteriostasis and viral inactivation.

A composite water biocide consists of polyol phosphate 20-30wt%, isothiazolinone 30-50wt% and dodecyl dimethyl benzyl 30-50wt%. It has better broad-spectrum bacterial, inhibition and corrosion-resistant performances and is convenient to store.

The invention relates to a method for preparing a surfactant by taking a lignin thermo-chemically degraded product as a raw material. The method comprises the following steps of: mixing lignin in a pulping waste liquid or lignin obtained from a waste liquid produced in wood hydrolyzing and biomass smelting processes with high-boiling-point alcohol in the liquid-solid ratio of 3:1-5:1; in the presence of an acid metal salt catalyst, performing liquefying treatment at the temperature of 150-350 DEG C to obtain a liquefied product in which phenols are taken as main materials; and purifying the liquefied product and adding various etherification, esterification, graft copolymerization or crosslinking modification reagents at the temperature of 40-90 DEG C to obtain the surfactant. The surfactant with the method has high water solubility, a wide application range and high surface activity; and the lignin which is subjected to liquefying treatment has the characteristics of suitability for various chemical modifications, low cost and wide application range.

The invention specifically relates to a method for recovering a protein from heparin sodium extraction waste liquid, which comprises the following steps: adding an aluminum salt solution in heparin sodium extraction waste liquid, and stirring; after uniformly stirring, adding a flocculant solution, and stirring; when a large amount of flocculent precipitate appears, standing; drawing off the supernatant, and collecting the precipitate; and drying to obtain the protein. According to the invention, the used polyaluminum chloride product has high bridging adsorbability, and physical and chemical processes such as condensation, adsorption, precipitation and the like are accompanied in the hydrolytic process. The polyaluminum chloride structurally comprises a shape-variable multi-element carboxyl complex, has a high flocculent precipitation speed and a wide applicable pH value range, and causes no corrosion to pipeline equipment. The high molecular weight polyacrylamide forms bridges among the adsorbed particles to generate flocs, thereby being beneficial to settling of the particles; and the polyacrylamide is low in consumption, high in efficiency and easy to realize post treatment.

The invention relates to a coagulation process in water treatment purification technology, wherein metal salt flocculating agent and aquadrate starch are mixed in the form of water solution, and are charged into the water to be processed, the aquadrate, dried maize starch and water solution are mixed for mixing reaction for 3-4 hours under the temperature condition of 90-100 deg. C. The invention realizes fine water purification effect and less influence from water temperature.

The invention relates to a polyoxyethylene sulfonate and a synthesis method thereof. The polyoxyethylene sulfonate is prepared through a sulfonation reaction of an allyl derivative and sulfite sulfite according to a content ratio of 1:1.1, wherein the allyl derivative is prepared through reacting polyoxyethylene ether and oxypropyl hydrocarbon with NaOH according to a weight ratio of 1:1.2. The synthesis method comprises the following steps: dissolving NaOH, introducing N2, adding polyoxyethylene ether and oxypropyl hydrocarbon at 120-150DEG C, mixing and stirring for 1-2h, adding sulfite, and stirring for 4-6h. The polyoxyethylene sulfonate is an amber viscous liquid, the solid phase content is 50%, the pH value application range is wide, and the polyoxyethylene sulfonate has excellent foaming performance in a water phase medium and a non-aqueous phase medium. The above surfactant resists high temperatures, has obviously better rock salt resistance than petroleum sulfonate and other alkylaryl sulfonates, and is suitable for chemically assisted high temperature viscous oil viscosity reduction.

The invention relates to a method for recovering protein from heparin sodium extracted waste liquid. The method comprises the steps that an aluminum trichloride solution is added to the heparin sodium extracted waste liquid; uniform stirring is performed; a flocculant solution is added; stirring is performed; standing is performed when substantive flocculent precipitates appear; a supernatant is removed; a precipitate is collected; and drying is performed to obtain the protein. High-molecular-weight polyacrylamide forms bridging between adsorbed particles and generates floccules, so that particle subsidence is facilitated; the dosage is small; the efficiency is high; and aftertreatment is easy.

The invention relates to a technology for purifying and reusing beneficiation wastewater of lead-zinc sulfide ore by coupling of hydrodynamic cavitation and H2O2. The technology comprises treatment steps as follows: (1), industrial-grade H2O2 is added to a buffer pool of lead-zinc sulfide ore beneficiation mixed wastewater through a pipeline; (2), the mixed wastewater treated in the step (1) is pumped and elevated from the buffer pool by a centrifugal pump and is conveyed by a conveying pipeline, the conveying pipeline comprises a main pipeline, and a flow meter, a pressure gauge and a hydrodynamic cavitation generation device are connected onto the main pipeline; (3), when the wastewater in the main pipeline passes the hydrodynamic cavitation generation device, pressure of the liquid during passing through a perforated plate is plunged under the flow resisting action of the perforated plate, a large quantity of cavitation bubbles are produced, and degradation of residual chemicals inthe beneficiation wastewater can be accelerated; (4), residual chemicals affecting reuse in the wastewater are purified under the actions of cavitation effect, strong oxidation effect of H2O2 and thecoupling effect; (5), the wastewater treated in the step (4) is totally returned to a beneficiation production system for reuse without influence on beneficiation indexes.

A method of preparing a polyferric-aluminum-chloride water purifier is disclosed. Raw materials include sintered pyrite slag, diatomite, hydrochloric acid, ferric chloride and / or aluminium chloride. The method includes steps of crushing the sintered pyrite slag and the diatomite until the particle size is 200-400 meshes, adding into a reaction kettle, mixing with the hydrochloric acid to obtain a leaching liquid, detecting aluminum and iron contents of the leaching liquid, adding proper amounts of the ferric chloride and / or the aluminium chloride according to the aluminum and iron contents to regulate the ratio of the aluminum and iron contents, subjecting the leaching liquid to evaporation and concentration, drying, adding a certain amount of water again, allowing the mixture to stand, and grinding to obtain the water purifier. The method achieves effective utilization of the sintered pyrite slag, turns waste into things of value, and overcomes the problem that the sintered pyrite slag is difficult to treat. The water purifier combines advantages of polyaluminium chloride and advantages of the ferric chloride, and is good in water purification effects and wide in effective pH value range.

The invention discloses anti-aging repair cream and relates to the technical field of skin care products. The anti-aging repair cream comprises following components in percentage by mass: 5%-8% of glycerin, 3%-6% of polyethylene glycol-400, 0.1%-0.3% of xanthan gum, 0.1%-0.5% of sodium hyaluronate, 0.3%-0.5% of an ammonium acryloyldimethyltaurate / vp copolymer, 5%-8% of caprylic / capric triglyceride, 6%-10% of ethylhexyl palmitate, 1%-3% of polydimethylsiloxane, 2%-4% of shea butter, 1%-3% of cetyl alcohol, 2%-4% of stearyl alcohol, 2%-4% of an emulsifier, 1%-5% of anti-aging repair composition,1%-5% of antiallergic composition, 0.3%-1% of antibacterial composition and the balance of water. The invention further discloses a preparation method of the anti-aging repair cream. The preparationmethod comprises following steps: A, weighing; B, preparation of an aqueous phase material; C, preparation of an oil phase material; D, blending; E, adding; F, disinfecting and packaging. The anti-aging repair composition is added to a mixture of water and oil phases, so that the anti-aging repair effect is realized, and the skin is moistened.

The invention relates to a water purifying agent for an aquaculture pond, belonging to the field of aquaculture. The water purifying agent for the aquaculture pond is a white powdery mixture comprising the following materials in parts by weight: 200-400 parts of marketed industrial-grade polyaluminium chloride and 100-300 parts of polymeric ferric sulfate. When in use, the water purifying agent can be firstly diluted and dissolved by pond water and then splashed into the whole aquaculture pond. The water purifying agent can absorb, flocculate and precipitate organic matters, fragments, and thelike inside water bodies by utilizing high molecular polymers, thereby enhancing the transparency of the water bodies and achieving good water quality purification effect; in addition, the water purifying agent is very convenient to use without any pollution on aquatic animals and can also enhance the using effect of disinfectant and insecticide medicaments when used before a disinfectant and aninsecticide are used.

The invention provides a hydrated titanium dioxide-persimmon tannin acrylic resin compound sorbent, a preparation method thereof and the application thereof, wherein, the preparation method of the compound sorbent comprises the steps as follows: silane coupling agents are added in water and is stirred for dissolution, then hydrated titanium dioxide is added and stirred, reaction is performed for 12 hours, and then centrifugation, washing and drying are carried out so as to obtain the modified hydrated titanium dioxide; mixed solution containing sodium acrylate is prepared by mixing N,N'-methylene-bisacrylamide, ammonium persulfate and persimmon tannin solution; n-hexane, anionic surface active agents and the hydrated titanium dioxide that is modified through the silane coupling agents are added in a reaction kettle, reaction is performed for 10 to 20 minutes under the conditions that nitrogen is pumped in and stirring is carried out, then mixed solution is added, stirring is performed, the temperature increases to 75 DEG C, and reaction is performed for 1.5 hours under the stirring condition; and n-hexane is removed through filtration, and vacuum drying is carried out, so as to obtain the hydrated titanium dioxide-persimmon tannin acrylic resin compound sorbent. The compound sorbent with low cost has the compound inorganic-organic advantages, achieves a good pb2 plus adsorption effect, and achieves simple synthesis technological process and high polymerization speed, and is easy to dry.

The invention discloses a preparation method of a printing and dyeing wastewater purifying agent, and belongs to the technical field of sewage treatment. Compared with the prior art, the preparation method of the printing and dyeing wastewater purifying agent uses blast furnace slag as a raw material to prepare a base material containing polyaluminum ferric chloride. After cooling, polyaluminum ferric chloride is adsorbed by the blast furnace slag, modified zeolite is added, the surface of the zeolite is modified to become rough, the average adsorption pore size becomes smaller, the specific surface area becomes larger, and the zeolite has no toxic and side effects on the environment, has a wide adaptive range to acidity, can be recycled, can absorb fiber impurities and the like in printing and dyeing wastewater; polyacrylamide can act as a adsorption bridging precipitation net catches, and increases the effect of alumen ustum. Compared with the conventional cationic polyacrylamide, the polyacrylamide emulsion used in the printing and dyeing wastewater purifying agent has a wider pH range, higher charge stability, and better flocculation effect. The preparation method of the printing and dyeing wastewater purifying agent solves a problem of poor treatment ability for the printing and dyeing wastewater currently.

The invention discloses production equipment and technology of plastic-free tableware packaging paper, and belong to the technical field of papermaking. The technology comprises the following processsteps: mixing and pulping softwood pulp, hardwood pulp and bleached bamboo pulp, blending pulp, adding auxiliary materials, making wet paper sheets, pre-drying, coating and sizing (PVA), post-drying and the like. The qualified plastic-free tableware packaging paper is manufactured by researching pulp selection, pulp proportioning, a pulping process, functional chemical additives added into pulp and the like and adopting in-machine film transfer surface sizing treatment. The one-time formed plastic-free tableware packaging paper has the advantages of being low in comprehensive cost, high in competitiveness, environmentally friendly, easy to recycle and the like, trial-produced products are put into the market to be highly evaluated by users, and economic, environmental and social benefits are quite remarkable.

The invention discloses a high-efficiency corrosion and scale inhibitor. The high-efficiency corrosion and scale inhibitor comprises the following components by mass: 22 to 26% of polyol phosphate, 28 to 32% of organophosphorus, 20 to 24% of copolymer and 21 to 25% of zinc chloride. The pH value application scope of the high-efficiency corrosion and scale inhibitor is 3 to 12. Raw materials used for preparation of the organophosphorus comprise 250 to 300 parts of distilled water, 380 to 420 parts of maleic anhydride, 480 to 500 parts of sodium hypophosphate, 380 to 420 parts of ammonium persulfate and 80 to 100 parts of an additive. The preparation method for the high-efficiency corrosion and scale inhibitor comprises the following steps: preparation of the organophosphorus; and preparation of the corrosion and scale inhibitor. Thus, the high-efficiency corrosion and scale inhibitor has the characteristics of resistance to high hardness and a wide pH value application scope; and the preparation method is simple and has low production cost.

The invention discloses a pregnant solution impurity removing method for an indirect gold mine heap leaching process. The pregnant solution impurity removing method for the indirect gold mine heap leaching process comprises the steps of adding active carbon to gold mine heap leaching pregnant solution; after 10-30 days, taking out saturated-adsorbed active carbon to be desorbed to obtain desorption waste water and desorbed active carbon; pickling the desorbed active carbon; putting acidic waste water obtained by pickling, the desorption waste water and smelting wastewater generated during smelting gold mud into a settling pond; using an efficient impurity removing agent to remove impurities; filtering and pressing sediments; and putting the filtered and pressed sediments in storage. The pregnant solution impurity removing method of the indirect gold mine heap leaching process, disclosed by the invention, has the advantages that the impurity removing efficiency is high, the settling speed is high, the pH value range suitable for impurities such as copper, mercury, zinc and nickel is wide, the leaching of gold is not affected, long-term recycling and zero emission of a leaching solution are realized, the low concentration state of the impurities in the leaching solution is kept, the leaching rate is increased, and the impurity metal is recycled.

The invention relates to a solid active bromine bactericidal algicide. The bactericidal algicide comprises, by weight, 30-40% of 2-bromine-4,5-dimethoxy phenyl propionitrile, 5-15% of 3-bromine-1-chlorine-5,5-dimethyl hydantoin, 5-15% of dibromo nitrilopropionamide, 15-25% of diquaternary ammonium activating agents, 10-20% of dibromo-2-cyanoacetamide and 5-15% of bronopol. The solid active bromine bactericidal algicide is advantageous in that, first, the bactericidal performances are strong and the bactericidal speed is fast; second, the application range of the pH value is wide; third, the bactericidal algicide is a bactericidal algicide with oxidizability and is effective to all kinds of microorganisms; fourth, the usage concentration is economical, and the bactericidal algicide with low dosage has strong bactericidal activity; fifth, the bactericidal algicide is suitable for ammonia-containing and nitrogen-containing water systems, and the bactericidal efficiency is not lowered with existence of ammonia; sixth, the bactericidal algicide has good intermiscibility and does not affect the using effects of corrosion and scale inhibitors; seventh, the bactericidal algicide has strong exfoliation; eighth, the bactericidal algicide has small impacts on the environment.

The invention relates to the technical field of corrosion resistance of hydrogenation devices, in particular to a water soluble corrosion inhibitor for a hydrogenation device and a preparation methodand application thereof. The preparation method comprises the following steps of: S1, material preparation: dissolving 10-20 parts of palmitic acid, 10-40 parts of a polyethylene glycol compound, 10-50 parts of a cyanate ester compound and 10-20 parts of ethylenediamine in an organic solvent and adding 1-5 parts of a catalyst to prepare a mixed raw material; S2, stirring: stirring the mixed raw material in S1 continuously by using a stirring tank for 3-6 hours to prepare a preliminary mixed material; and S3, feeding the material. The water soluble corrosion inhibitor is a film-forming corrosion inhibitor and is particularly suitable for a low-temperature tower top system with catalyzing, hydrogenating and distilling devices. The corrosion inhibitor is injected from a volatilization line onthe top of a fractionating tower to form a compact protecting film on passing pipelines and equipment along with a pipeline medium flow to isolate corrosion of corrosion media to the equipment and pipelines, so that the corrosion rate is reduced and the operating period is prolonged.

The invention discloses a method for preparing a paper making wet end chemical addition agent by using cassava residue as a raw material; the method comprises the following steps: the cassava residue is beaten and then is washed and dispersed by clean water; after suspended cassava barks and crude fibers are removed, sedimental cassava residues and fine fibers are dehydrated for standby application, are mixed with the crude fibers obtained through winnowing and separation of the removed cassava barks and the crude fibers and are diluted into slag pulp; then the slag pulp is jointly processed by sodium hypochlorite and hydrogen peroxide; the processed slag pulp is ball-milled into powder; a modified liquid reagent is used for carrying out chemical modification on the powder, a modified synthesis mixture is washed and filtrated by an organic solvent and finally filter cakes are dried and powdered so as to obtain the modified cassava residue product. In the method, the process is simple,devices are matured, and simultaneously as a multiple-effect paper making wet end chemical addition agent, the prepared modified cassava residue product is used for reinforcing paper pulp and helpingretention and filtration, has higher economic value and provides a positive approach for effectively solving environmental pollution caused by the abandon of cassava residues.

The invention relates to a method for preparing a surfactant by using lignin thermochemically degraded phenolic products as raw materials. After lignin and high-boiling point alcohol are mixed at a liquid-solid ratio of 3:1 to 5:1, they are liquefied at 150°C to 350°C in the presence of an acidic metal salt catalyst to obtain liquefied phenolic substances. The product is purified and liquefied. After the product is purified, various modification reagents for etherification, esterification, graft copolymerization or crosslinking are added, and the surfactant is modified at 40°C to 90°C to obtain a surfactant. The surfactant prepared by the invention has good water solubility, wide application range and strong surface activity, and the liquefied lignin is suitable for various chemical modifications, and has the characteristics of low cost and wide application range.

The invention particularly relates to a technology for removing proteins and heparin-like materials in sodium heparin crude extract liquid. The technology which is a method for recycling the proteins in sodium heparin extraction waste liquid includes adding aluminum salt solution into the sodium heparin extraction waste liquid and stirring the aluminum salt solution and the sodium heparin extraction waste liquid to obtain first solution; adding flocculating agent solution into the uniformly stirred first solution and stirring the flocculating agent solution and the first solution to obtain second solution; allowing the second solution to stand still when a large quantity of flocculated precipitates appear in the second solution; sucking off supernatant and collecting the precipitates; drying the precipitates to obtain the proteins. The technology has the advantages that polyaluminum chloride is high in bridging and adsorption performance, and physical and chemical procedures such as coagulation, adsorption and precipitation can be carried out in an accompany manner in hydrolysis procedures; the polyaluminum chloride structurally comprises morphology-changeable poly-carboxyl complex compounds, is high in flocculation and precipitation speed and wide in pH (potential of hydrogen) value application range and is free of corrosion for pipeline equipment; polyacrylamide with a high molecular weight can be 'bridged' between adsorbed particles to generate floccules and is favorable for settling the particles, low in usage and high in efficiency, and after-treatment can be facilitated.