1007 results about "Polyaspartic acid" patented technology

The present invention relates to a phosphorus-free composite antiincrustation corrosion inhibitor. It includes polyaspartic acid and/or polyepoxysuccinic acid and at least one kind of scale inhibition and dispersion agent, in which the scale inbibition and dispersion agent is polymer containing carboxylic acid group, or it includes polyaspartic acid and/or polyepoxysuccinic acid, zinc salt, molybdate or tungstate and polymer containing carboxylic acid group. Said invention is applicable to treatment of circulating cooling water.

The invention discloses a polypeptide-ammonium polyphosphate trace element liquid chelated fertilizer and a preparation method of the liquid chelated fertilizer. The polypeptide-ammonium polyphosphate trace element liquid chelated fertilizer comprises the components by weight percent: 5-25% of urea, 5-15% of ammonium polyphosphate, 5-25% of potassium nitrate, 0.2-3% of potassium silicate, 0.8-5% of potassium chloride, 0.008-0.1% of polyaspartic acid, 0.8-5% of ammonium sulfate, 0.8-5% of ethylene diamine tetraacetic acid (EDTA) calcium, 0.2-3% of EDTA magnesium, 0.02-1.5% of EDTA boron, 0.005-0.1% of EDTA zinc, 0.005-0.1% of EDTA iron, 0.005-0.05% of EDTA copper, 0.005-0.05% of EDTA manganese, 0.001-0.01% of nickel sulfate, 0.001-0.01% of ammonium molybdate, 0.0008-0.01% of cobaltous sulfate, 0.008-0.1% of polyacrylamide and the balance of water. The polypeptide-ammonium polyphosphate trace element liquid chelated fertilizer disclosed by the invention is simple in technology, scientific in proportion, balanced in fertilization, low in cost and good in effect.

The invention provides a metal surface oil and rust removal agent, and belongs to the technical field of cleaning agents. The metal surface oil and rust removal agent comprises the following components by weight: 2 to 4 parts of hydrochloric acid, 5 to 10 parts of phosphoric acid, 3 to 6 parts of oxalic acid, 3 to 5 parts of glacial acetic acid, 2 to 4 parts of citric acid, 3 to 4 parts of polyvinyl alcohol, 1 to 2 parts of hexamethylene tetramine, 2 to 3 parts of ethylene oxide, 1 to 2 parts of glyoxal, 2 to 3 parts of magnesium stearate, 2 to 4 parts of glycerol, 2 to 4 parts of thiourea, 2 to 4 parts of ammonium molybdate, 1 to 2 parts of polyaspartic acid, 2 to 4 parts of EDTA-Na2, 1 to 2 parts of ethylene diamine tetra sodium, 1 to 3 parts of poly maleic acid sodium, 2 to 3 parts of HEDPA, 2 to 6 parts of surface active agent and 70 to 100 parts of water. The metal surface oil and rust removal agent is convenient to use, and removes light rust for about 2 minutes and heavy rust for 6 to 7 minutes, and the oil removal rate can reach more than 97%.

The invention provides a corrosion-inhibition scale inhibitor composition, a corrosion-inhibition scale inhibitor and an application thereof, wherein the corrosion-inhibition scale inhibitor composition comprises water-soluble oxidizable inorganic metal salts, water-soluble inorganic zinc salts, phosphine compounds and polymers; the weight ratio of the water-soluble oxidizable inorganic metal salts, the water-soluble inorganic zinc salts, the phosphine compounds and the polymers is 0.005-0.2:0.05-1:0.1-0.75:1; the polymer is selected from one or more than one of hydrolyzed polymaleic anhydride, polyaspartic acid, polyepoxy succinic acid, and polyacrylic acid polymers. The corrosion-inhibition scale inhibitor composition and the corrosion-inhibition scale inhibitor provided by the invention has both good corrosion inhibition and scale inhibition.

The invention relates to the technical field of water treatment agents and particularly relates to a multifunctional sewage treatment agent. The multifunctional sewage treatment agent comprises the following raw materials in parts by weight: 10-20 parts of sepiolite powder, 30-40 parts of bentonite, 30-40 parts of starch xanthate, 0.1-0.5 part of sodium hydroxide caustic soda, 1-5 parts of polyaspartic acid, 0.1-0.5 part of amino trimethylene phosphonic acid, 25-50 parts of cross-linked rectorite, 20-50 parts of aluminum polychlorid, 5-30 parts of chitosan and 10-30 parts of deionized water. The multifunctional sewage treatment agent provided by the invention is high in purity, free of impurity and dustless, the aqueous solution is clear, transparent, non-toxic and free of effect on operation workers, and the treated water is free of problems such as secondary pollution.

The invention relates to a fertilizer formula and an application method of the fertilizer. The selenium-iron-zinc-enriched organic-inorganic fertilizer for producing selenium-iron-zinc-enriched rice is prepared by granulating proportionally mixed selenite, ferrite, zinc salt, nitrogen fertilizer, phosphate fertilizer, potash fertilizer, polyaspartic acid or other salts, decomposed organic fertilizer and silicon fertilizer. The fertilizer is applied to the field as a base fertilizer or supplementary fertilizer 1-4 times. The fertilizer can simultaneously provide selenium, iron and zinc and other nutrient reinforcing substances required by growth of crops. The fertilizer is beneficial to growth of the crops, enhances the absorptivity and conversion rate of selenium, iron and zinc, and can produce selenium-iron-zinc-enriched rice satisfying the Food Standard.

The invention relates to a formula of a fertilizer, and a using method for the fertilizer. A selenium and ferrum-enriched organic inorganic fertilizer used for producing selenium and ferrum-enriched rice is prepared by mixing selenite, ferrite, a nitrogen fertilizer, a phosphate fertilizer, a potash fertilizer, a decomposed organic fertilizer and a silicon fertilizer in a ratio, and granulating. The selenium and ferrum-enriched organic inorganic fertilizer is prepared from the following components in part by weight: 0.004 to 0.010 part of selenite, 1 to 5 parts of ferrite, 15 to 33 parts of nitrogen fertilizer, 12 to 24 parts of phosphate fertilizer, 10 to 17 parts of potash fertilizer, 0.02 to 0.08 part of sodium of polyaspartic acid or salt thereof, 30 to 50 parts of decomposed organic fertilizer and 5 to 8 parts of silicon fertilizer. The fertilizer contains selenium and ferrum, also contains other nutritional fortification substances required by growth of crops, can simultaneously provide selenium, ferrum and nutritional fortification substances required by the growth for the crops, contributes to the growth of the crops, improves the absorption rate and conversion rate of the selenium and the ferrum, and achieves an effect of producing the selenium and ferrum-enriched rice reaching the selenium and ferrum-enriched rice standard by applying a small amount of selenium and ferrum.

The invention relates to a non-phosphorus scale and corrosion inhibitor for industrial circulating water and a preparation method and applications thereof, and provides a non-phosphorus (phosphine) scale and corrosion inhibitor for industrial circulating water in order to settle the technical problems. The product containing single component has the characteristics of being convenient in addition and excellent in scale and corrosion inhibiting performance. The non-phosphorus scale and corrosion inhibitor consists of the following components in parts by weight: 30 to 50 parts of dispersing scale inhibitor, 8 to 25 parts of corrosion inhibitor and 28 to 43 parts of auxiliary, wherein the dispersing scale inhibitor is acrylic acid-acrylic ester terpolymer or the mixture of the acrylic acid-acrylic ester terpolymer and at least one of the hydrolytic maleic anhydride, polyaspartic acid and sodium polystyrene sulfonate; and the corrosion inhibitor is soluble zinc salt (e.g. zinc sulfate and zinc chloride) and benzotriazole (or methyl benzotriazole). The non-phosphorus scale and corrosion inhibitor has excellent scale and corrosion inhibiting performance as well as meets and precedes the demand of GB50050-2007.

The present invention is polyasparagic acid as degradable environment-protection scale inhibitor and its synthesis process. The scale inhibitor is a kind of homopolymer with amido group and carboxyl group. Owing to the amino group and carboxyl group, the polyasparagic acid has excellent dispersivity to various kinds of scales. In addition, owing to the peptide linkage structure of amino acid in the structure, the scale inhibitor may be degraded into inorganic salt under the action of microbes. The polyasparagic acid is prepared through converting maleic anhydride into amine salt, polymerization and shrinkage into polysuccinylimide and hydrolysis under the presence dof alkali.

The invention discloses a water-soluble mineral fertilizer, belongs to the field of crop fertilizers, and particularly relates to a water-soluble inorganic mineral fertilizer. The water-soluble mineral fertilizer is composed of an A component, a B component and a C component, wherein the A component is composed of potash feldspar, powdered rock phosphate, medical stones, kieselguhr, bentonite and a water-soluble hydrophilic grafting agent; the B component is composed of urea, biological nitrogen-fixing bacteria, a urease inhibitor, a nitrification inhibitor and carboxymethyl starch, and the C component is composed of polyaspartic acid, polyyvinylpyrrolidone and casein. A preparation method of the water-soluble mineral fertilizer takes an inorganic mineral powder body as a main raw material, the water-soluble hydrophilic grafting agent is utilized, and the inorganic mineral powder body is dissolved in the water to form a stability colloid. The water-soluble mineral fertilizer provided by the invention contains a large number of nitrogen phosphorus and potassium elements and also contains different medium/trace elements and rare earth elements required by the growth of a plant, a soil structure is improved, the growth of the plant is improved, the product quality of a crop is improved, a raw material is easily available, the price is low, the raw material is non-pollution, the production technology is simple, and a market prospect is wide.

The invention discloses a phosphorus-free green composite corrosion and scale inhibitor, which comprises polyaspartic acid or polyepoxysuccinic acid, maleic acid homopolymers, acrylic copolymers, inorganic zinc salt, an ECH inhibition synergist and water. The ECH inhibition synergist is mixture of lanthanum nitrate and sodium gluconate mixed according to a mass ratio of 1:10-1:5. The phosphorus-free green composite corrosion and scale inhibitor of the invention is phosphorus-free, non-toxic and highly biodegradable, and not only can overcome the defects of water body eutrophication and high toxicity caused by water treatment agents containing phosphorus, chromium, nitrite and the like, but also can be used for treatment of corrosive water with low alkalinity and low concentration and can satisfy the requirements of circulating water with high temperature, high alkalinity, high hardness and high pH value at present. Moreover, the invention is a multifunctional security and environmental protection type water treatment agent with a function of inhibiting both corrosion and scale.

The invention provides a fertilizer synergist, which comprises the following components in parts by weight: 7%-15% of polyaspartic acid, 0.5%-2% of trace element, 30%-40% of bentonite, 10%-20% of sodium humate, 5%-15% of zeolite, 10%-20% of palygorskite, 10%-20% of glauconite, 2%-4% of thiourea and 0.1%-0.5% of nanometer carbon. The invention further provides a preparation method of the fertilizer synergist. The components of the fertilizer synergist are promoted with one another to obtain good combined effect. The fertilizer synergist does not contain any harmful chemical components and produces good effects of improving the soil and increasing the quality and yield of crops.

The invention relates to a scale and corrosion inhibitor for treating circulating cooling water, which is prepared from the following components in percentage by weight: 10 to 35 percent of polyaspartic acid (PASP) or polyepoxysuccinic acid, 10 to 35 percent of sodium gluconate, 0.15 to 3 percent of methyl benzotriazole, 1 to 5 percent of imidazoline and deionized water. The polyaspartic acid (PASP) or the polyepoxysuccinic acid (PESA) with biodegradability serving as a main body is compounded with the deionized water, the methyl benzotriazole, the sodium gluconate and the imidazoline to form a phosphorus-free product; the sodium gluconate has good synergy with the methyl benzotriazole and the imidazoline, so the scale and corrosion inhibiting effect is good, and scale formation, corrosion and bacteria and algae propagation of the circulating water can be effectively prevented; and when the added mass concentration is 20mg/L, the corrosion rate is 0.0561mm/a. Under the same water quality condition, the scale and corrosion inhibitor has low adding concentration, low adding quantity and low cost compared with other like products; and the scale and corrosion inhibitor is stable at a high temperature, has certain chlorine resistance and oxidation resistance, can ensure that a system has no scale or corrosion or the like, and can be adapt to the water quality of various complex severe working conditions.

The invention relates to a plant cultivating substrate as well as a preparation method and application of the plant cultivating substrate. The plant cultivating substrate is prepared by taking polyaspartic acid water-absorbent resin as a binder, mixing sand and water, moulding and drying, is preferably a truncated cone with a longitudinal through hole formed at an axis, and can be matched with a plant cultivating medium containing polyaspartic acid fertilizer and a polyaspartic acid water-absorbent resin aquasorb for plant seed preservation and seedling cultivation. The plant cultivating substrate can effectively absorb and retain moisture, can supply moisture and nutritional elements which are necessary to plant growth in an uninterrupted way, so that a greening effect can be achieved and the balance of a local ecological environment and species is not destroyed; therefore, the plant cultivating substrate is particularly applicable to afforestation, barren hill greening and desertification control in arid areas.

The invention belongs to the technical field of spraying polyurea elastic materials, and discloses polyaspartic acid ester polyurea protective paint with good corrosion resistance. The polyaspartic acid ester polyurea protective paint with the good corrosion resistance is mainly prepared from the following raw materials: a material A and a material B, wherein a molar ratio of NCO in the material Ato NH in the material B is 1.05-1.1; the material A is mainly prepared from 20-40% of polyether glycol and 60-80% of polyisocyanate; and the material B is mainly prepared from 70-85% of polyasparticacid ester, 1-5% of nano oxidized graphene, 5-10% of nano metallic oxide filler, 5-10% of pigment and filler, 1-3% of a defoamer, 1-3% of a flatting agent and 2-5% of an adhesion promoter. The invention provides a preparation method, a using method and application of the polyaspartic acid ester polyurea protective paint. The invention has the advantages that after aging the polyaspartic acid esterpolyurea protective paint for 350 d, a change rate of tensile strength is less than 4.5%, and a change rate of elongation at break is less than 5.0%, the polyaspartic acid ester polyurea protective paint has a good mechanical property and corrosion resistance, an adhesive force is stronger, capacity of an anti-corrosion coating to resist an environmental change in practical application can be improved, and maintenance cost is reduced.

The invention relates to a mixed gel applied to injection and a preparation method thereof. The mixed gel of the invention is characterized by comprising polyaspartic acid terpenoid gel particle, cross bonding hyaluronic acid gel particle and hyaluronic acid or salt solution thereof, wherein, the volume of the polyaspartic acid terpenoid gel particle accounts for 5-80%, the volume ratio of the cross bonding hyaluronic acid gel particle and hyaluronic acid or salt solution thereof ranges from 1:19-19:1; the preparation method of the mixed gel has the following steps: respectively preparing the polyaspartic acid terpenoid gel particle and cross bonding hyaluronic acid gel particle; mixing evenly the particles with hyaluronic acid dissolved in the isosmotic solution after full swelling and balancing in isosmotic solution, sterilizing and packaging the mixture to obtain the finished product. The mixed gel of the invention can be used to prepare injection for beauty care and medical treatment and has the characteristics of long hold time and little side effect.

The invention discloses a multifunctional compound fertilizer which is prepared from the raw materials including urea, ammonium sulfate, monoammonium phosphate, potassium chloride, silico-calcium fertilizer, ammonium lignosulphonate, amino acid, fermented rape seed cake, zinc sulfate, magnesium sulfate, borax, kieselguhr, magnesia, ammonium molybdate and polyaspartic acid through crushing, mixing and pelletizing. The multifunctional compound fertilizer contains not less than 35 percent of total nutrients of nitrogen, phosphorus and potassium, not less than 15 percent of organic matters, not less than 6 percent of amino acid, not less than 5 percent of humic acid, not less than 6 percent of trace elements and not less than 0.15 percent of synergist. The multifunctional compound fertilizer has functions of resisting insects and diseases, controlling loss, increasing effect and efficiency, maintaining land, and protecting environment.

The invention provides a polyaspartic acid ester sealant for a petroleum pipeline end socket and a preparation method of the polyaspartic acid ester sealant. The polyaspartic acid ester sealant for the petroleum pipeline end socket comprises, by weight ratio, including a constituent A and a constituent B, wherein the constituent A includes 20-70 parts of aliphatic isocyanate and 20-65 parts of polyether polyol; the constituent B includes 30-70 parts of asparaginic acid resin, 30-44 parts of a steric hindrance chain extender, 5-50 parts of padding, 2-4 parts of an addition agent, 1-3 parts of a pigment and 4-10 parts of a plasticizing agent; the mass ratio of the constituent A to the constituent B is 1:1-1.3:1. The polyaspartic acid ester sealant for the petroleum pipeline end socket has the advantages that the formula is scientific and reasonable; the oil resistance, the liquid medium resistance, the weather resistance and the ageing resistance of the polyaspartic acid ester sealant are excellent; the mechanical property of the polyaspartic acid ester sealant is approximately the same as that of anti-corrosion polyurea of a pipeline, so that the adhesive force of the polyaspartic acid ester sealant is excellent.

The invention discloses a phosphorus-free composite scale and corrosion inhibitor and application thereof as well as a circulating water treatment method. The phosphorus-free composite scale and corrosion inhibitor comprises a scale inhibitor, a dispersing agent, an organic phosphorus-free corrosion inhibitor and a manganese salt, wherein the scale inhibitor consists of polyaspartic acid and/or polyepoxysuccinic acid; the weight ratio of the scale inhibitor to the dispersing agent to the organic phosphorus-free corrosion inhibitor to the manganese salt is 1:(0.2-10):(0.5-100):(0.025-1); the weight of the manganese salt is calculated according to manganese ions. The phosphorus-free composite scale and corrosion inhibitor and a non-oxidizing bactericide, particularly isothiazolinone, have a good synergistic effect, a sterilizing effect of the non-oxidizing bactericide can be obviously improved, and the fast sterilization and long drug effect time are reflected. In addition, the phosphorus-free composite scale and corrosion inhibitor is environment-friendly, has phosphorus-free and nitrogen-free characteristics and meets the green and environment-friendly requirements, and the environmental burden is lightened. Moreover, the phosphorus-free composite scale and corrosion inhibitor is wide in water quality application range and is easy to popularize and apply.

The invention provides a special fertilizer for sugarcane and a preparation method of the fertilizer. The fertilizer comprises the following raw materials in parts by weight: 400-440 parts of fused urea, 10-30 parts of humic acid, 100-145 parts of monoammonium phosphate, 30-45 parts of potassium chloride, 100-135 parts of potassium sulfate, 50-62 parts of dolomite dust, 2-3 parts of magnesium sulfate, 1-2 parts of zinc sulfate and 2-3 parts of polyaspartic acid. The invention provides the fertilizer which can satisfy the absorptive amount of sugarcane on various nutrients and improve the output and stress resistance of sugarcane, and the production is increased by over 15% compared with common composite fertilizers. The fertilizer further can promote absorption of nutrients by sugarcane to improve the utilization ratio of effective components in the fertilizer, so that the use level of chemical fertilizer is reduced by over 20%. Furthermore, the fertilizer can improve the crop quality and is environmental friendly, sugarcane is good in taste and high in quality, and the commercial performance of sugarcane is remarkably improved.

The invention relates to a production method of selenium-iron-zinc-rich rice, in particular to a production method of preparing the selenium-iron-zinc-rich rice through applying selenium-iron-zinc-rich organic and inorganic special fertilizers. The production method of organic selenium-iron-zinc-rich nutrition enhanced rice sequentially comprises the following steps of: seed selection, seedling culturing, field cultivation, rice seedling transplanting, field management, harvesting and processing, wherein the field management comprises fertilization, the applied fertilizers are the selenium-iron-zinc-rich organic and inorganic special fertilizers, the number of fertilization times is 1 to 4, and the selenium-iron-zinc-rich organic and inorganic special fertilizers comprise selenite, ferrite, zinc salts, nitrogenous fertilizers, phosphatic fertilizers, potash fertilizers, polyaspartic acid, polyaspartate, decomposed organic fertilizers and silicon fertilizers. Through the application of the selenium-iron-zinc-rich fertilizers, selenium, iron and zinc elements and other nutrition enhanced substances required by growth are simultaneously provided for crops, the application of the fertilizers is favorable for the crop growth, the absorption rate and the conversion rate of selenium, iron and zinc are improved, and the selenium-iron-zinc-rich rice conforming to the food standard is produced.

The invention discloses a scraping coating type polyurea elastomer corrosion-resistant and wear-resistant material and a preparation method thereof. The scraping coating type polyurea elastomer corrosion-resistant and wear-resistant material is characterized by comprising an ingredient A and an ingredient B, wherein the ingredient A is prepolymers with NCO end groups obtained through the reaction between 30 to 40 mass percent of polyether polyol and 60 to 70 mass percent of polyisocyanates; the ingredient B is prepared from 30 to 40 mass percent polyaspartic acid ester, 60 to 70 mass percent of filling materials and a small number of auxiliary agents through high-speed dispersion grinding. In the use process, the prepared ingredient A and the prepared ingredient B are weighed according to the weight ratio of 1:4, and are then uniformly mixed; next, scraping coating construction is performed. The material has the characteristics of high mechanical intensity, corrosion resistance, wear resistance, good anti-seeping performance, aging resistance, proper reaction speed, no solvent, convenient construction and the like. The scraping coating type polyurea elastomer corrosion-resistant and wear-resistant material is particularly suitable for industrial and mining enterprise equipment and spare part anti-corrosion wear-resistant liners.

The invention discloses a preparation method of a straw fermented biological fertilizer. The preparation method comprises the following steps: grinding wheat straw, corn straw, and reed straw, adding water, and evenly mixing; inoculating compost mixed bacteria, performing compost fermentation; adding sugar residue, sodium humate, and polyaspartic acid in sequence, evenly mixing, spraying a plant ash water solution to adjust the pH value, carrying out enzymatic hydrolysis; then adding a trace element fertilizer and EDTA-2Na stabilizer, evenly mixing, then adding composite adjusting bacteria, filling the mixture into bags to carry out secondary fermentation; drying the fermented materials at a low temperature, and granulating the dried materials to obtain the straw fermented biological fertilizer. The straw resources are fully utilized, a large amount of straws is converted high efficiently, the wastes are converted into valuable resources, moreover, the alkalinity of saline-alkali soil can be reduced, the soil activity is improved, the resistance of crops is enhanced, the output of crops planted in saline-alkali soil is effectively increased, and high economic benefit and social benefit can be generated.

The invention discloses a composite water treatment agent which comprises the following components in parts by mass: 15-45 parts of sodium tungstate, 5-25 parts of polyaspartic acid, 1-5 parts of zinc salt, 2-15 parts of sodium benzoate and 2-25 parts of carboxylate, wherein sodium tungstate is a corrosion inhibitor which is non-toxic, causes no environmental hazard and can generate the synergic corrosion inhibition function with polyaspartic acid. With addition of other assistants, the composite water treatment agent becomes a green composite water treatment agent which has excellent corrosion inhibition and scale inhibition effects, lower in cost, non-phosphorus, easily biodegradable and beneficial to environmental protection. In China, tungsten reserves and yield are abundant, so that the sufficient tungsten compounds can be provided, and the cost of the treatment agent is greatly lowered.

A novel derivative of combretastatins which has water solubility and is capable of releasing the drug independent of biological enzymes likely to cause individual differences and whose effective therapeutic effect can be expected has been demanded. A high-molecular weight conjugate of combretastatins, characterized by having a structure in which a hydroxyl group of a combretastatin is linked via an ester bond to a carboxylic acid group of the polymer moiety in a block copolymer of a polyethylene glycol moiety with the polymer moiety having two or more carboxylic acid groups such as polyaspartic acid or polyglutamic acid is provided.

The invention belongs to the technical field of coatings, and particularly relates to a modified polyaspartic acid ester polyurea coating and a preparation method thereof. The coating comprises a component A and a component B, and the component A and the component B are respectively prepared and independently stored. The component A comprises isocyanate and/or a polymer of isocyanate; and the component B is prepared from the following substances in parts by weight: 20 to 75 parts of organic silicon and epoxy dual-modified polyaspartic acid ester resin, 5 to 35 parts of a filler, 0.1 to 5 partsof a pigment, 0.5 to 10 parts of an auxiliary agent and 5 to 30 parts of a solvent. An organic silicon unit and an epoxy unit are introduced into a polyaspartic acid ester resin structure to obtain anovel polyurea coating with excellent low-temperature flexibility, bonding strength, weather resistance and mechanical properties, and the coating is simple in preparation method, good in controllability, low in cost, capable of being prepared in batches and suitable for industrial production.

The invention belongs to the technical field of a sewage treatment agent, in particular to a treatment agent of steelmaking waste water. The treatment agent comprises the following raw materials in parts by weight: 25 to 45 parts of polyacrylamide, 5 to 15 parts of sodium hydroxide, 2 to 5 parts of sodium carbonate, 5 to 15 parts of magnesium oxide powder, 10 to 20 parts of polysilicon ferric sulfate, 10 to 20 parts of quaternary ammonium salt lignin flocculant, 20 to 30 parts of sodium base bentonite, 0.5 to 2 parts of amino trimethylene phosphonic acid, 5 to 15 parts of pentasodium diethylenetriaminepentaacetate, 10 to 20 parts of polyaspartic acid, and 12 to 25 parts of polyaluminium chloride. The treatment agent of steelmaking waste water disclosed by the invention is good in treatment effect, obvious in corrosion and scale inhibiting effect, capable of reducing scaling and corrosion effectively, lowering the production cost, high in purity, free of toxicity, and has no influence on operating workers and problems such as secondary pollution after treatment.

The invention relates to a wastewater treating agent, a preparation method and a wastewater treatment method. According to the oil paint wastewater treating agent, the formula comprising a corrosion inhibitor, a scale inhibitor, a sterilizing agent and a flocculating agent is adjusted, and an auxiliary chemical is added, so that the wastewater treatment process is easy to control, the treatment period is short, and the treatment effect is remarkably improved; the wastewater treating agent comprises the corrosion inhibitor, the scale inhibitor, the sterilizing agent, the flocculating agent and the auxiliary chemical; the corrosion inhibitor comprises sodium polyphosphate, calcium gluconate, alkyl epoxy sodium carboxylate, potassium iodide and gelatin; the scale inhibitor comprises trisodium phosphate, tannin, sodium humate, sulfoacid copolymers and TH-0100 type reverse osmosis scale inhibitors; the sterilizing agent comprises potassium permanganate, didodecyl dimethyl dibenzyltinoammonium chloride and nano-zinc oxide; the flocculating agent comprises lignin, chitosan, quaternary amine type cationic starch, polyaluminum chloride , polymeric ferric sulfate and diatomite earth; the auxiliary chemical comprises polyaspartic acid and alky epoxy carboxylate. An experiment result proves that the wastewater treating agent has an excellent effect.

The invention relates to a degradable phosphorus-free composite corrosion and scale inhibitor. The inhibitor is prepared from following raw materials by weight: 5-10 parts of sodium sulfate, 3-5 parts of alkyl polyglycoside, 3-5 parts of polyaspartic acid, 2-5 parts of carboxymethylcellulose, 8-20 parts of polyepoxysuccinic acid, 3-5 parts of a polymerized amino acid, 3-5 parts of sodium gluconate, 5-10 parts of xylogen, 1-2 parts of methylbenzotriazole and 40-50 parts of deionized water. According to the invention, the raw materials of the inhibitor are nontoxic, natural, renewable and degradable. The synergistic effects of all compositions are fully utilized, and performance of corrosion and scale inhibiting is improved and dosage is reduced. The inhibitor has the advantages of no toxicity, no harm, biodegradability, stable performance, and the like.

The invention relates to the technical field of chemical coatings, and particularly discloses a potlife-adjustable wind turbine blade coating and a preparation method thereof. The coating consists of components A and C, wherein the component A is prepared from the following raw materials in parts by weight: 20 to 40 parts of polyaspartic acid ester resin, 3 to 6.5 parts of liquid acrylonitrile butadiene rubber, 1.5 to 4 parts of a water removal agent, 2 to 12 parts of a reactive diluent, 0.4 to 2 parts of a wear-resistant agent and 34.8 to 74.9 parts of an auxiliary; the component C is prepared from the following raw materials in parts by weight: 93 to 99 parts of an isocyanate curing agent and 1 to 7 parts of an organic solvent. The potlife of the potlife-adjustable wind turbine blade coating is adjustable between 0.5 to 2.5 hours, the potlife-adjustable wind turbine blade coating has low glossiness, solid content capable of reaching over 80 percent, high flexibility, impact resistance, rub resistance, weather resistance and short construction period, and can be used as a primer and a topcoat for single-pass construction, and the long-term protection requirements of a wind turbine blade and the development trend of low coating VOC are met.