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103 results about "Calcium lignin sulfonate" patented technology

Modified polycarboxylate superplasticizer and preparation method thereof

The invention relates to the technical field of construction material additives, in particular to a modified polycarboxylate superplasticizer and a preparation method thereof. The preparation method comprises the following steps: conducting condensation reaction on calcium lignosulphonate and acrylic acid to prepare modified calcium lignosulphonate; utilizing monomer methyl allyl polyoxyethylene ether, the modified calcium lignosulphonate and acrylic acid to prepare the modified polycarboxylate superplasticizer through free radical copolymerization synthesis under the action of chain transfer agent sodium methallyl sulfonate and initiator ammonium persulfate. According to the invention, the sulfonic acid group in the introduced calcium lignosulphonate has high dispersity; water-reducing rate is improved; manufacturing cost is reduced; the polycarboxylate superplasticizer is environment-friendly and economic; the preparation technology is simple; the synthesized modified polycarboxylate superplasticizer is high in water-reducing rate, fluidity and slump maintaining capability.
Owner:ANHUI XIN SOLID ENVIRONMENTAL CO LTD

Soil solidifying agent, and preparation method and use method thereof

The invention discloses a soil solidifying agent, and a preparation method and a use method thereof. The soil solidifying agent is prepared from, by weight, 0.4 parts of calcium lignin sulfonate, 0.9 parts of sodium polycarboxylate, 1.7 parts of lithium hydroxide, liquid aluminum dihydrogen phosphate, illegally recycled waste cooking oil, sulfamic acid and distilled water, the pH value of the soil solidifying agent is 5-9, a weight ratio of the illegally recycled waste cooking oil to the liquid aluminum dihydrogen phosphate is 1.5:1, and the use amount of sulfamic acid is 1 / 2 of the total weight of the illegally recycled waste cooking oil and the liquid aluminum dihydrogen phosphate. The preparation method of the soil solidifying agent comprises the following steps: preparing an alkaline neutralization solution, preparing acidic fatty alcohol sulfide, mixing the alkaline neutralization solution with the acidic fatty alcohol sulfide, layering and extracting, and filtering to prepare the finished soil solidifying agent. The soil solidifying agent provided by the invention is not strong acidic or alkaline, and has the advantages of high safety, no pollution to environment, strong compression resistance, high water stability, high freeze stability and realization of waste utilization of the illegally recycled waste cooking oil; and the preparation method of the soil solidifying agent has the advantages of low energy consumption, no pollutants, safety and environmental protection.
Owner:BEIJING HUAXIA PIONEERING NEW MATERIAL

Attapulgite and zinc lignosulphonate-based interpenetrating network-type water-retention and slow-release zinc fertilizer

The invention provides an attapulgite and zinc lignosulphonate-based interpenetrating network-type water-retention and slow-release zinc fertilizer. The attapulgite and zinc lignosulphonate-based interpenetrating network-type water-retention and slow-release zinc fertilizer is prepared by taking natural clay attapulgite, calcium lignosulphonate, acrylic acid, acrylamide, an initiator and a cross-linking agent in a percentage by mass respectively, wherein the total of the percentages of the constituents is 100%; preparing a calcium lignosulphonate aqueous solution from calcium lignosulphonate, then adding zinc heptahydrate to obtain a zinc lignosulphonate solution; combining natural clay attapulgite and the zinc lignosulphonate solution, and dispersing in water, adding acrylic acid and acrylamide, then adjusting the pH value, adding N,N'-methylene bisacrylamide and ammonium persulfate to perform a cross-linking reaction, so as to generate a compound cross-linked body; and performing vacuum drying and crushing. Relative to the traditional absorbing-fixing zinc fertilizers and physically-blended zinc fertilizers, the slow-release zinc fertilizer has the advantages of being stable in structure, high in water absorption rate, good in slow-release effect and the like.
Owner:NORTHWEST RES INST CO LTD OF C R E C

High toughness construction material

The invention discloses a high toughness construction material. The high toughness construction material comprises the following raw materials in parts by weight: 40 to 60 parts of silicate cement, 20 to 40 parts of composite carbon fiber, 30 to 55 parts of admixture, 3 to 5 parts of dispersant, 1 to 3 parts of water reducer, 1 to 3 parts of thickening agent, 0.5 to 3 parts of flexibilizer, 0.3 to 0.8 part of antifoaming agent, 1 to 5 parts of fire retardant, 3 to 8 parts of mica powder, 10 to 15 parts of calcium carbonate, 5 to 10 parts of fly ash, 3 to 8 parts of silicon powder, 2 to 6 parts of talcum powder, and 3 to 10 parts of calcium lignin sulfonate. A composite fiber material and a dispersant are added, the composite fiber material is evenly dispersed under the effect of the dispersant, the reinforcing and crack-resistant effects of fiber can be better exerted, the toughness and crack resistant property of material are enhanced; the mechanical properties are changed, the performance of the material on resisting deformation is prominently reinforced, the possibility of cracking and breaking of concrete is reduced, the using effect is good, the construction material has high completeness when being applied to buildings, and the cost of buildings is largely reduced.
Owner:ZHENGZHOU UNIV OF IND TECH

Cement paste for prestress engineering and manufacturing method thereof

The invention which provides a cement paste for prestress engineering and a manufacturing method thereof belongs to the technical field of the prestress engineering. The manufacturing method comprises the following steps: 1, preparing a material which comprises 300 parts of Portland cement, 4-8 parts of a naphthalene water reducer, 1-2 parts of a calcium lignin sulphonate retarder, 88-100 parts of water and 2-7 parts of a paste thixotropic agent; 2, pouring water into a paste stirring tank, and pouring the naphthalene water reducer; 3, adding the Portland cement under stirring, and costarring for 4-6min to obtain a cement paste; 4, transferring the cement paste to a paste storage tank, allowing it to stand for 45min, adding the calcium lignin sulphonate retarder, and stirring for 4-6min to obtain a retardation paste; 5, allowing the retardation paste to continuously stand for 1h; and 6, adding the paste thixotropic agent while starting a stirrer to stir, and continuously stirring for 15-30s to obtain a thixotropic paste (the cement paste of the invention). The grouting of largely-bent pipelines can be once completed with the thixotropic paste, so the work efficiency and the construction quality are substantially improved.
Owner:CHINA NUCLEAR IND HUAXING CONSTR +1

Multi-component composite metal antirust paint and its preparation method

The invention discloses a multi-component composite metal antirust paint and its preparation method. The metal antirust paint is composed of the following raw materials, by weight, 32-35 parts of a polypropylene resin, 28-32 parts of a bisphenol A epoxy resin, 10-15 parts of a phenolic resin, 17-25 parts of modified meerschaum powder, 1.4-1.6 parts of 8-hydroxyquinoline, 20-25 parts of dibutyl phthalate, 0.6-0.8 parts of calcium lignin sulphonate, 0.4-0.8 parts of polybutylene terephthalate, 0.3-0.5 parts of poly-4-methyl-1-pentene, 1.1-1.3 parts of 4,4-methylene-bis(2,6-di-t-butylphenol), 2-5 parts of a modified styrene-acrylate emulsion, 1.5-1.7 parts of carboxymethyl cellulose sodium, 0.4-1.0 part of vinyltrisilane, 0.4-0.7 parts of sodium stearate and 1.0-1.5 parts of sodium dodecyl benzene sulfonate. The film of the metal antirust paint has the advantages of good adhesion, fast drying, good heat resistance, environmental protection and no pollution, and the modified meerschaum powder and the modified styrene-acrylate emulsion which are added to the raw materials improve the excellent performances of high-polymer materials in the raw materials and simultaneously increase the corrosion and heat resistances of the metal antirust paint; and the preparation method of the metal antirust paint has the advantages of simplicity, low cost and suitableness for large-scale production.
Owner:佛山市顺德区姿彩塑料粉末实业有限公司

PS [PAM-Ca-LS (polyacrylamide-calcium lignin sulfonate)] lignin gel type profile control agent and method for preparing same

The invention relates to a PS [PAM-Ca-LS (polyacrylamide-calcium lignin sulfonate)] lignin gel type profile control agent. By the aid of the PS lignin gel type profile control agent, the problem of poor profile control effects due to high initial viscosity, short profile control valid periods and low plugging efficiency of existing profile control agents mainly can be solved. The PS lignin gel type profile control agent is characterized by comprising, by weight, 0.5-1.5% of macromolecular polymers, 1-10% of gel, 0.2-2.0% of colloid stabilizers, 0.2-2.0% of reducing agents, 0.2-0.6% of chelating agents, 0-1.0% of retarders, 0.5-1.5% of cross-linking agents and the balance water. A method for preparing the PS lignin gel type profile control agent includes adding the corresponding water into a container, then sequentially adding the gel, the colloid stabilizers, the reducing agents and the chelating agents into the container, circularly stirring the corresponding water, the gel, the colloid stabilizers, the reducing agents and the chelating agents at the normal temperature under the normal pressure for half an hour to obtain first mixtures, then spreading the macromolecular polymers into the first mixtures, stirring the macromolecular polymers and the first mixtures for 2 hours to obtain second mixtures and allowing the second mixtures to stand still for 8 hours to obtain agents A; completely dissolving the cross-linking agents and the corresponding water according to a proportion of 1:1 to obtain agents B; adding the retarders into the agents A before the agents B are injected, adding the agents B into the agents A and uniformly stirring the agents A, the retarders and the agents B to obtain the PS lignin gel type profile control agent. The PS lignin gel type profile control agent and the method have the advantages of long profile control valid period, high plugging efficiency and good profile control effect.
Owner:大庆市杰森钻采助剂厂

Pymetrozine-dinotefuran dry suspending agent and preparation method thereof

The invention relates to a pymetrozine-dinotefuran dry suspending agent and a preparation method thereof, and belongs to the technical field of pesticides. The dry suspending agent is prepared from the following components in percentage by mass: 40 to 60 percent of pymetrozine raw medicine, 5 to 30 percent of dinotefuran raw medicine, 1 to 5 percent of anionic dispersing agent, 5 to 10 percent of liquid wetting agent, 5 to 20 percent of lignin and the balance of filler up to 100%, wherein the lignin is sodium lignin sulfonate and / or calcium lignin sulfonate; the anionic dispersing agent comprises ethoxylated tristyryl phenol potassium phosphate salt. The lignin, the anionic dispersant and the liquid wetting agent can generate a synergistic effect with pymetrozine and dinotefuran raw medicines; therefore, the dispersity and suspension performance of the pymetrozine-dinotefuran dry suspending agent are improved, and the preparation is not prone to precipitation and layering and easy to disintegrate.
Owner:中化化工科学技术研究总院有限公司 +1

Preparation method of magnetic lignin-based adsorbent and application thereof

The invention belongs to the technical field of composite material synthesis, and relates to a preparation method of a magnetic lignin-based adsorbent, and especially relates to the preparation method of the magnetic lignin-based adsorbent and an application thereof. The method comprises the following steps: a solvothermal method is used for preparing magnetic Fe3O4, the magnetic Fe3O4 is coated by glucose to prepare Fe3O4/C, through water-bath backflow, calcium lignin sulphonate is taken as a main raw material for compositing the Fe3O4/C, triethylene tetramine is used for performing aminating modification on the composite material, so that the magnetic lignin-based adsorbent is prepared, which can be used for adsorption treatment for waste water pollution. The lignosulfonate structure has many active functional groups, has certain ion exchange and adsorption performances, and can prepare the magnetic lignin-based adsorption materials with various function through magnetic composition. The method has the advantages of simple process flow, easy operation, easily available raw material, and low cost of raw material, realizes greenization of a synthesis technology and high-efficiency utilization of the waste calcium lignin sulphonate, can reuse papermaking waste, and reduces environment pressure; and the magnetic lignin-based adsorbent has good adsorptive property, and is suitable for industrial production.
Owner:JIANGSU UNIV

Domestic sewage treatment agent and preparation method thereof

The invention discloses a domestic sewage treatment agent and a preparation method thereof, belonging to the field of sewage treatment. The method includes the following steps: (1) drying and dehydrating the activated sludge; (2) mixing the dried and dehydrated activated sludge, boronite calcium carbonate, and sodium bentonite, putting them into a low-temperature pulverizer for pulverization, and 150 (3) Soak chitin-modified plant fiber and cellulase in bamboo vinegar solution for 1-2 hours, freeze-dry to constant weight, and set aside; (4) Mix the mixed powder, polysilicic acid Add aluminum, calcium chloride, calcium lignosulfonate, aluminum chloride, ferric chloride, sodium acetate, acetyl lanolin, glyceryl monostearate, and potato powder into water and mix well; (5) add sodium alginate , Dry at 130-150°C, grind again, and cool. Each component in the domestic sewage treatment agent of the invention interacts and cooperates with each other, so that the effect of sewage treatment is greatly improved.
Owner:曾世容

Organosilicone waterproof agent for multifunctional high-performance concrete

PendingCN105753365AProlong initial and final setting timeSmall slump lossLiquid stateSodium lignosulfonate
The invention discloses an organosilicone waterproof agent for multifunctional high-performance concrete.The organosilicone waterproof agent is composed of organosilicone, naphthalene sulfonated formaldehyde condensate sodium salt, triethanolamine, sodium lignin sulfonate or calcium lignin sulfonate, citric acid, sodium thiosulfate and water.The organosilicone waterproof agent is a multifunctional liquid-state waterproof agent integrating efficient waterproofness, water reduction and pumping and having slight expansion effect and can meet the technical requirements on pumping construction of large-flow waterproof concrete.The organosilicone waterproof agent can remarkably improve early strength of mortar and concrete, flowability and plasticity maintaining capability and is suitable for waterproof mortar, waterproof concrete and pumping concrete of underground engineering, dykes and dams, building engineering and traffic engineering.
Owner:WENDENG LANDAO ARCHITECTURAL ENG CO LTD

Wastewater processing and purifying agent developed based on agriculture and agricultural technologies

The invention discloses a wastewater processing and purifying agent developed based on agriculture and agricultural technologies. The wastewater processing and purifying agent is composed of followingraw materials in parts by weight: 0.2 to 0.7 part of polyacrylamide, 0.2 to 0.6 part of sodium tripolyphosphate, 3 to 9 parts of modified diatomite, 0.3 to 0.7 part of inorganic flocculant, 4 to 7 parts of polyacrylamide, 2 to 6 parts of diatomite, 0.3 to 0.7 part of light calcium carbonate, 3 to 8 parts of builder, 2 to 7 parts of inorganic flocculant, 0.2 to 0.5 part of polyethylene glycol, 0.3to 0.7 part of graphene, 0.3 to 0.9 part of calcium lignin sulfonate, 3 to 8 parts of active carbon, 2 to 7 parts of alumina powder, 0.3 to 0.6 part of calcium oxide, 0.5 to 1 part of sericite powder, 0.3 to 0.7 part of fly ash, 0.3 to 0.7 part of sodium alginate, 0.3 to 0.8 part of biological fertilizer, 0.4 to 0.7 part of calcium peroxide, 0.3 to 0.6 part of polymeric ferric sulfate, and 2 to 6parts of biological nutrients. The provided wastewater processing and purifying agent has the advantages of quick purifying speed, good effect, environmental friendliness, short purifying time, rapidness, and high efficiency. A sewage purifying agent prepared according to provided formula is convenient to use. The treatment time is short, and the water quality can be maintained for a long term.
Owner:王奔

Water reducer

The invention discloses a water reducer comprising the following components in parts by weight: 35-50 parts of epoxyethane compound, 10-15 parts of urea, 20-40 parts of calcium lignosulphonate, 55-75 parts of sodium hydroxide water solution with the concentration of 30% and 35-55 parts of formaldehyde. The water reducer is prepared by stirring and heating the components. The water reducer disclosed by the invention has a better water reducing property than that of a high-efficiency naphthalene sulfonate formaldehyde condensate water reducer and simultaneously substitutes for the expensive melamine monomer, so that a new water reducer with excellent properties and low price without containing cyanogen, naphthalene and other harmful substances to human bodies, animals and plants is synthesized.
Owner:王琴

Construction composite material with strong stability

The invention discloses a construction composite material with a strong stability. The material is characterized by being composed of the following components in parts by weight: 25 to 30 parts of polyvinyl chloride, 8 to 15 parts of fly ash, 10 to 15 parts of cement clinker, 3 to 4 parts of protective colloid, 10 to 13 parts of hydroxymethyl cellulose, 3 to 5 parts of vinyl acetate, 3 to 4 parts of ethylene, 0.6 to 0.7 part of processing aid ACR401, 0.8 to 1 part of lubricating property modifier LS-303, 0.2 to 0.3 part of polyethylene wax, 0.3 to 0.4 part of paraffin, 0.12 to 0.15 part of stearic acid, 3 to 4 parts of calcium lignin sulfonate, 0.5 to 0.7 part of sodium methyl phenylhydrazine hydrochloride, and 0.5 to 0.8 part of foaming agent. The obtained construction composite material has the characteristics of penetration resistant property, freeze-resistant performance, environment-friendliness, no pollutant discharge, and long service life. The toughness of the construction material is high, during the using process, the adhesive force is strong, the falling ash is reduced, no precipitation is generated, the operation is simple and labor-saving, and the construction material is nontoxic, odorless, and pollution-free and is an environment-friendly construction material.
Owner:青岛诚运建筑工程有限公司

Dry flowable containing pinoxaden and topramezone

The invention relates to a dry flowable containing pinoxaden and topramezone. A dispersant in the dry flowable is a composite dispersant of a lignosulfonate and one selected from an alkylphenol polyoxyethylene ether formaldehyde condensate and a fatty alcohol polyoxyethylene ether sulfate, wherein the weight ratio of the lignosulfonate to the alkylphenol polyoxyethylene ether formaldehyde condensate or the fatty alcohol polyoxyethylene ether sulfate is 5:1-2:1. The lignosulfonate is sodium lignosulfonate or calcium lignosulfonate. The dry flowable of pinoxaden and topramezone has good dispersing and suspending properties in performance, can form a homogeneous suspension system during use, and can save labor and time when being used to spray post-emergence stems and leaves for weeding. Especially, the dry flowable is excellent in stability, especially heat storage stability, due to the selection of a specific composite dispersant.
Owner:NANJING GAOZHENG AGROCHEM
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