421results about How to "Promote chelation" patented technology

The invention discloses a liquid compound microbial fertilizer containing polyglutamic acid, and a preparation method and an application thereof, and belongs to the field of compound microbial fertilizers. Bacillus megaterium, bacillus thuringiensis and bacillus amyloliquefaciens are prepared into a bacteria liquid by liquid fermentation, and then the bacteria liquid is mixed with compound nutrients and a gamma-polyglutamic acid according to the mass ratio of 1:1:0.05-0.1 to be prepared into the efficient liquid compound microbial fertilizer. On the basis of good phosphorus dissolving capability of the bacillus megaterium, good insect resistance of the bacillus amyloliquefaciens and good organic matter degrading capability of the bacillus amyloliquefaciens, the purposes of more excellent fertilizer efficiency and lower water consumption are achieved under the characteristics of water retention, fertilizer preservation, and no environmental pollution of the gamma-polyglutamic acid, therefore, the scientific and reasonable matching of the compound fertilizers is formed.

The invention discloses a method for repairing garbage compost heavy metal by adopting NTA (Nitrilotriacetic acid) of a waste interlayer. The method comprises the following steps of: filling 500g air-dried garden soil, 60g horizontal interlayer and 280g compost in a PVC (Poly Vinyl Chloride) pipe with the diameter of 7.5 cm and the length of 25 cm in turn; sowing 0.6g festuca arundinacea seeds in the pipe, applying 10-20 mmol/kg aqueous solution of NTA sodium salt of compost on the compost surface after sowing for 30 days; clipping grass after 10 days; and measuring the content changes of heavy metal Cd, Cr, Cu, Pb and Zn. A test result of the method provided by the invention shows that: the migration of harmful substances and heavy metal in the garbage compost to the soil can be reduced by paving the horizontal interlayer above the soil and under the compost, so as to increase the time of a lawn plant for absorbing heavy metal in the compost and the enrichment of heavy metal in the lawn plant under the induction of chelating agent and reduce the migration of heavy metal to deep soil.

The invention relates to a sponge composite metallic organic framework material for adsorption separation and belongs to the technical field of materials. According to the invention, a two-step in-situ growth method is adopted for loading MOFs (metallic organic framework material) into a duct in a sponge carrier. The MOFs is synthesized from following organic ligands and metal salts, wherein the organic ligands include pyrazine, trimesic acid, terephthalic acid, 2,5-dihydroxyterephthalic acid, and the metal salts include cupric fluosilicate, magnesium nitrate, zirconium chloride, cupric nitrate, chromic nitrate, ferric nitrate, aluminum nitrate and hydrates thereof. According to a preparation method provided by the invention, a large amount of MOFs loaded in the duct in the sponge carriercan be realized; MOFs load rate is high; load is stable; the defects of fragility and easiness in loss of MOFs powder can be overcome; a breakthrough experiment proves that the material provided by the invention has the characteristics of high CO2-absorbing capacity, high adsorption separation selectivity, stable adsorption separation property, and the like.

The invention discloses a two-chelating compound fertilizer, which is composed of chelates, potash fertilizer, urea and clay, and also can be joined with monoammonium phosphate based on needs. The two-chelating compound fertilizer of the invention has rational compatibility, simple process, low cost, high efficiency, good particle strength and balanced nutrients, which improves the soil and stimulates the development of plant roots to prevent disease in the process of crop growth due to lack of trace elements; the two-chelating compound fertilizer adds trace elements to the soil and has good organic matter effects, which is a novel efficient compound fertilizer.

The invention relates to the field of functional materials, particularly a preparation method of an adsorbent for acid dye wastewater treatment. The invention mainly solves the technical problem that dyeing wastewater can not be easily decolorized, can not achieve the discharge standard and the like in the prior art. The preparation method comprises the following steps: putting 8-10g of beta-cyclodextrin into 1-2g of citric acid monohydrate, and adding 1g of PEG-400 and 0.25g of sodium dihydrogen phosphate to obtain a beta-cyclodextrin polymer by polymerization; adding a silane coupling agent into a chitosan solution; and cross-linking the beta-cyclodextrin polymer with the chitosan to obtain a beta-cyclodextrin-chitosan porous membrane, wherein the mol ratio of the chitosan to the beta-cyclodextrin polymer is 1:3..

The invention provides a preparation method of an organic chelate fertilizer. The preparation method comprises the steps that (1) typha angustifolia and crop straw are cleaned, crushed and mixed; compound bacterium liquid and a sodium bicarbonate solution are added; stirring and sealing fermentation are conducted; a potassium hydroxide solution is added; humic liquid is obtained; (2) compound amino acid and inorganic salt of medium trace elements conduct chelation reaction with the humic liquid; a pH value is adjusted by an acid solution to be 5-6; temperature rise and stirring are conducted for reaction; the pH value is adjusted by an alkaline substance to be 7; a chelation product solution is obtained; (3) a nitrogenous fertilizer, a phosphate fertilizer, a potash fertilizer and water are added to a mixer by weight percentage, and mixed uniformly; pelleting slurry is prepared; and (4) the chelation product solution and the pelleting slurry are driven into a guniting neutralization geosyncline, mixed uniformly, transferred to a pelletizer for guniting and pelleting, and dried, and then the organic chelate fertilizer is obtained. The organic chelate fertilizer prepared by the method is small in application amount, high in stability, and high in plant absorptivity.

The invention discloses a special root-inducing slow release high-efficiency fertilizer for double cropping rice and a preparation and application method thereof. The preparation method comprises the following steps: mixing and blending nitrogen fertilizer and compound synergist in a blender for 3-5 minutes to obtain root-inducing slow release high-efficiency nitrogen fertilizer; and then, continuing to mix with phosphorus fertilizer and potassium fertilizer for about 5 minutes to obtain the finished fertilizer, wherein the compound synergist is prepared by uniformly mixing the following materials in percentage by weight: 3.4-3.8% of borax (B), 2-2.5% of hydroquinone (HQ), 0.9-1.4% of dicyandiamide (DCD), 33-36% of silicon fertilizer (SiO2), 9-14% of polyaspartic acid (PASP), 31-38% of humic acid (HA) and 9-12% of phosphorus activator. The finished fertilizer is used as basal fertilizer to be completely applied after rice soaking and in the early rice transplanting stage, and no additional fertilizer is required for the later stage; the amount of applied fertilizer for early rice is 40-45 kg/mu; and the amount of applied fertilizer for late rice is 50-55 kg/mu. The fertilizer disclosed by the invention has the dual effects of promoting root growth and delaying nutrient release, can greatly improve the nutrient utilization ratio and rice yield, is convenient to produce and use, and has the advantages of high technical compatibility, low cost, environment friendliness and the like.

The invention discloses a new-generation full-element chelated-state food-grade liquid bacterial fertilizer and a preparation method thereof, relates to an organic fertilizer containing bacterial cultures or hyphae, and aims at providing a liquid bacterial fertilizer and a preparation method thereof. Multiple high-salt-resistant strains are reasonably matched and cooperate with multiple chelating solutions, and therefore after the bacterial fertilizer is applied, effective ingredients in the bacterial fertilizer can be efficiently utilized for a long term. The new-generation full-element chelated-state food-grade liquid bacterial fertilizer is prepared from 4-6 parts of composite microbial strains, 4-5 parts of molasses, 0.4-0.6 part of bran, 0.05-0.1 part of carbamide, 0.05-0.1 part of sodium chloride, 0.01-0.02 part of tea leaves, 7-9 parts of a composite sugar alcohol-trace element chelating solution, 20-26 parts of an ammonium polyphosphate-nitrogen-phosphorus-potassium chelating solution, 3-5 parts of an organic acid-medium and trace element chelating solution and 45-50 parts of water. After the liquid bacterial fertilizer is applied, form transformation of soil nutrients can be promoted, plant metabolism can be enhanced, and pathogenic bacteria can be resisted. The liquid bacterial fertilizer is applied to the field of agricultural planting.

The invention provides a soil cadmium passivator. The soil cadmium passivator is prepared from biological carbon, quick lime and sodium alginate; by means of the quick lime in the soil cadmium passivator, a pH value of soil can be improved, available cadmium in an ionic state is converted into a cadmium sediment in an invalid state such as cadmium hydroxide; the sodium alginate has a good chelating effect on heavy metal cadmium; the biological carbon has certain adsorbing effects on the available cadmium in the ionic state, the cadmium hydroxide and invalid cadmium such as in cadmium a complexing state; the biological carbon, the quick lime and the sodium alginate in the soil cadmium passivator can be mutually matched and cooperated at a specific mixture ratio, so that the effects of reducing the content of the cadmium in an available state in soil and the content of the cadmium in a living body grown in the soil are realized; the soil cadmium passivator also has the advantages that a PH value in the soil is improved, the functions of the soil are improved, and secondary pollution is avoided.

This invention relates to a metal polishing solution, which is composed of: abrasive material 10-50 wt. %, surfactant 0.1-1 wt. %, pH regulator 1-5 wt. %, chelating agent 0.1-1 wt. %, and deionized water as balance. The granularity of the abrasive material is 15-100 nm. The pH value of the metal polishing solution is 8-12. The metal polishing solution is prepared by: filtering and purifying the above components of the metal polishing solution, introducing the components into a container through a mass flowmeter under negative pressure in a class 1000 clean room, and stirring uniformly. The metal polishing solution has such advantages as high polishing speed, high smoothness, small diameters, and little damage to wafer surface, wasy cleaning, no toxicity, no odor, no corrosion, simple process and easy operation.

The invention disclosed a compound fertilizer which comprises basic nutrition fertilizer including nitrogen, phosphorus and potassium, and also comprises gamma-polyglutamic acid and seaweed extract, wherein the gamma-polyglutamic acid accounts for 0.1-2% of the basic nutrition fertilizer, and the seaweed extract accounts for 0.5-2% of the basic nutrition fertilizer. The compound fertilizer containing the gamma-polyglutamic acid and the seaweed extract has high activity biological function, and is capable of improving the yield and the resistance capability such as disease resistance, drought resistance, cold resistance, lodging resistance and the like of crops. Therefore, the compound fertilizer can be widely applied to grain crops such as wheat, rice, corn and the like, and cash crops such as tomatoes, melons, grapes and the like. One-off fertilization can be realized without topdressing, and the yield of the crops can be increased by 10-30%.

The invention relates to the technical field of preparation of organic compounds, in particular to the technical field of preparation of a metal-chelator. The invention particularly discloses a preparation method of imino-disuccinic acid and salt thereof. The method comprises the steps of mixing alkaline raw material liquid A containing butene diacid radical and alkaline raw material liquid B containing aspartic acid radical to have a reaction, enabling reaction liquid to be in a critical saturation state, and maintaining the reaction liquid to be boiled; continuously carrying out the reaction until end to obtain imino-disuccinate; continuously feeding inorganic acid into the product to obtain imino-disuccinic acid precipitate, filtering, and recrystallizing to obtain white imino-disuccinic acid crystal. The method has the advantages of being short in reaction time, high in reaction yield, low in energy consumption and low in cost; the prepared product is high in purity and good in performance, thus being suitable for industrial production.

The invention provides a soaping agent composition for dyeing fabric and a production method thereof, and relates to the technical field of textile dyeing, and especially relates to soaping agent composition for dyeing fabric and a production method thereof. A formula of the composition comprises, by weight, 10-25% of fatty alcohol polyoxyethylene ether, 5-15% of fatty alcohol sulfate, 2-6% of alpha-alkenyl sulfonate, 4-8% of chelating auxiliary agent, 3-6% of resist printing salt S and 55-65% of water. Composition of the ingredients has good soaping and anti-contamination effects on reactive dyes of cotton, blending fabric and polyester cotton fabric, etc; a good soaping fastness can be realized without acid neutralization and high temperature soaping; besides, a process is simple, saves time and reduces consumption of water, electricity and steam, so as to lower cost and increase working efficiency.

The invention relates to a preparation method of a coal-based composite chelating agent. The method comprises the steps that powdered coal particles are taken as a substrate; the powdered coal particles are subjected to surface modification by a coupling agent, namely r-aminopropyl triethyl silane; polyacrylic acid is coupled and grafted on the surfaces of the powdered coal particles; amine oximation is conducted on the powdered coal particles; and then the coal-based composite chelating agent having good mechanical properties and high heavy metal ion chelation and adsorption capacity is prepared. Powdered coal is relatively cheap and has better mechanical strength, rich pore structure, large specific surface area and good adsorptive property. According to the preparation method, rich active functional groups such as -OH, -COOH and -CO- contained on a macromolecule skeleton of the powdered coal are utilized, the coal is taken as the substrate, and the coal-based composite chelating agent having good mechanical strength and excellent chelation property can be prepared.

The invention relates to a preparation method of a chelating dispersant. The preparation method comprises steps as follows: a, 10 parts of maleimide and 12 parts of acrylamide are dissolved with 65 parts of deionized water, 0.2 parts of sodium persulfate is dissolved with 30 parts of deionized water, and a solution is formed for later use; b, 20 parts of dodecyl polyoxyethylene ether, 15 parts of maleic anhydride sodium monoester, 15 parts of diallylamine and 234 parts of deionized water are added to a reactor, dissolved and heated to 70 DEG C; c, 1/3 of a maleimide and maleicamide aqueous solution in volume and 1/4 of a sodium persulfate water solution in volume are added to a reaction kettle and kept at the temperature for 30 min; d, the remaining maleimide and maleicamide aqueous solution, the remaining sodium persulfate water solution and 20 parts of acrylic acid are dropwise added within 2 h and kept at 80 DEC G, and the mixture reacts for 2 h; e, the temperature of the reactor is reduced to 30 DEG C, 8 parts of sodium hydroxide are added firstly, 14 parts of carbon disulfide are added after dissolution, the mixture reacts for 3 h and is filtered, and the chelating dispersant is obtained.

The invention provides a non-corrosive heavy oil dirt remover and a preparation method thereof. The remover comprises fatty alcohol-polyoxyethylene ether sodium sulfate, fatty alcohol polyoxyethylene (7) ether, alkyl polyglucoside, sodium polyacrylate, 2-methyl-2,4-pentanediol, sodium hydroxide, potassium hydroxide, sodium metasilicate, monoethanol amine, essence and deionized water. The non-corrosive heavy oil dirt remover, provided by the invention, has the advantages of strong oil dirt removing capacity, environmental friendliness, and free corrosion about materials of metal, plastic, glass and the like in use.

The invention relates to a preparation method of a strontium chelated sodium alginate coating on a titanium surface. The preparation method comprises the steps that a trihydroxymethyl aminomethane water solution of dopamine is firstly utilized for treating the titanium surface, sodium alginate is grafted to the surface of the above material by means of an amide reaction of dopamine amidogen and sodium alginate carboxyl, then the obtained material is put into a strontium chloride solution, and chelation of strontium is achieved. A catechol functional group in the dopamine adheres to the titanium surface in a non-covalent manner, and then the coating is constructed on the surface of a substrate. The method is easy to operate, and bonding with a matrix is good. Sodium alginate biocompatibility is good, strontium alginate gel formed after a large quantity of carboxyl existing in molecules and strontium ions react has good chelation performance on the strontium, the strontium chelated sodium alginate coating on the titanium surface is prepared, and long-acting bone inductivity is given to transplant materials by means of slow release and degradation of the strontium. The adopted sodium alginate is good in biocompatibility and has good chelation performance with the strontium, slow release of the strontium is achieved, and quite high promotional value is achieved.