177 results about "Sodium metasilicate" patented technology

The invention discloses a yellow phosphorus tailing-based mine filling material and application thereof. The yellow phosphorus tailing-based mine filling material comprises aggregate and a cementing material, the cementing material comprises the following components in parts by mass: 5-20 parts of red mud, 20-40 parts of yellow phosphorus slag, 10-30 parts of slag, 5-10 parts of fly ash, 5-10 parts of a compound exciting agent, 1-3 parts of an early strength agent and 2-5 parts of a water-retaining agent; wherein the compound exciting agent comprises the following components in parts by mass: 10-20 parts of sodium metasilicate, 30-40 parts of gypsum powder, 20-30 parts of sodium sulfate, 5-10 parts of carbide slag and 5-10 parts of silica fume; according to the invention, the raw materials are compounded and the specific exciting agent is subjected to depolymerization-polycondensation reaction to obtain a cementing material containing Aft (ettringite), C-S-H gel (hydrated calcium silicate gel) and C-A-S-H gel (hydrated calcium aluminosilicate gel), and finally, the mine filling material with high fluidity, low bleeding rate and high strength is obtained while yellow phosphorus tailing solid waste is treated.

The invention relates to a high-strength stable solid waste-based composite cementing material and a preparation method and application thereof in the field of building materials. The high-strength stable solid waste-based composite cementing material is prepared from the following raw materials in parts by weight: 70-85 parts of composite solid waste micro powder; 10 to 20 parts of Portland cement clinker; 3-8 parts of a composite activator; 0.5 to 2 parts of a nano-scale function regulator; wherein the composite solid waste micro powder is prepared by mixing and grinding the following raw materials in parts by weight: 40-60 parts of blast furnace slag powder; 20 to 30 parts of fly ash; 10-20 parts of chemically modified electrolytic manganese residue powder; and 5-15 parts of steel slag powder. According to the preparation method, sodium metasilicate is adopted to assist medium-temperature calcination to chemically modify the electrolytic manganese residues, so that not only is the gelation activity of the electrolytic manganese residues effectively excited, but also free-state manganese, cadmium and other heavy metal ions in the electrolytic manganese residues are fixed in situ in newly formed zeolite-like silicate mineral lattices through thermochemical reconstruction; and a brand new technical path is opened up for safe and high-value utilization of the typical hazardous waste, namely the electrolytic manganese residues.

The invention relates to the technical field of heavy metal recovery, in particular to a method for recovering heavy metal from metal waste. Comprising the following steps: preparing silicon-tungsten composite acid salt; preparing heteropolyacid powder; preparing a resin heteropolyacid composite material; heavy metals are recovered from metal wastes by a resin adsorption method. The silicon-tungsten composite acid salt is prepared under mild conditions through reaction of sodium metasilicate, sodium tungstate and potassium chloride, the operation is simple, the conditions are easy to control, the silicon-tungsten composite acid salt has rich active sites and a large specific surface area, the surface of the silicon-tungsten composite acid salt carries negative charges, and the surface of the silicon-tungsten composite acid salt is not prone to damage. Compared with a traditional chemical precipitation method, the method for extracting the heavy metal by using the silicon-tungsten composite acid salt does not need to add a large number of chemical reagents, and secondary pollution is reduced.

The invention belongs to the technical field of wastewater treatment, and provides a method for removing and recovering manganese from acid mine wastewater. The method comprises the steps that the acid mine wastewater is subjected to iron removal treatment to obtain iron removal supernate, a manganese removal agent is added into the iron removal supernate to obtain manganese precipitation residues and manganese removal supernate, the manganese precipitation residues and sulfuric acid are mixed to obtain leaching liquid and leaching residues, and the leaching liquid is electrolyzed to obtain metal manganese; the manganese removal agent is sodium silicate and / or sodium metasilicate. According to the method, the added manganese removal agent does not enable silicate ions and manganese ions to generate manganese silicate, but enables the silicate ions to generate a hydrated calcium silicate adsorbent or a porous magnesium silicate adsorbent in situ with calcium and magnesium ions by using the calcium and magnesium ions existing in the acid mine wastewater, so that the recovery and removal of manganese are realized; the method disclosed by the invention is simple and low in cost, and not only realizes recovery of manganese resources, but also realizes deep treatment of residual manganese; and the leaching residues generated in the manganese recovery stage can also be used for deeply treating the manganese-removed supernate, so that the generation of waste residues is reduced.

A method of producing a mesoporous chitosan / sodium iron silicate (NaFeSi2O6) nanocomposite includes hydrothermally treating a mixture of sodium metasilicate pentahydrate (Na2SiO3·5H2O) with iron(III) chloride hexahydrate (FeCl3·6H2O) to obtain NaFeSi2O6 nanoparticles. The method further includes combining the NaFeSi2O6 nanoparticles with a solution of chitosan to generate a precursor mixture; treating the precursor mixture with sodium hydroxide (NaOH), resulting in a nanocomposite where chitosan coats and aggregates the NaFeSi2O6 nanoparticles into rod-like structures. The resulting nanocomposite exhibits unique textural properties with mesopores larger than 15 nm, is ideal for adsorption, separation, and catalysis, and can be produced under mild conditions without complex procedures or hazardous chemicals.

The invention relates to the technical field of ceramic glaze water, in particular to ceramic glaze water capable of continuously releasing negative ions based on a rare earth material and a preparation method of the ceramic glaze water. Comprising a negative ion material, sodium polystyrenesulfonate, an immobilized bacterium preparation, carbon nanotube modified graphene oxide, turbo stone, modified sepiolite, nano-zinc oxide, sodium hexametasilicate, polyethylene glycol, a composite antioxidant, a coalescing agent, a slow-release carrier and deionized water. The negative ion material is formed by mixing low-radioactivity commercial rare earth powder, tourmaline and opal according to the mass ratio of (3-4): (4-5): 1. According to the invention, the preparation cost of the glaze water is reduced and the production efficiency is improved by optimizing the composition and compounding mode of the negative ion material, enhancing the stability of the bacterial preparation and simplifying the preparation process, meanwhile, the negative ion release durability, the ceramic surface adhesive force and the antibacterial property are remarkably enhanced, and the requirements of industrial production and practical application are met.

The invention discloses a metal degreasing agent and a preparation method thereof, and belongs to the technical field of degreasing. Comprising lipase, protease, short-chain fatty acid methyl ester ethoxylate sodium sulfonate, cocamidopropyl betaine, alkyl glucoside, sodium silicate, sodium metasilicate, sodium citrate, disodium ethylene diamine tetraacetate, calcium formate, polyvinyl alcohol-sodium alginate microcapsules, a polyoxyethylene polyoxypropylene block copolymer, sodium carboxymethyl cellulose and water. And the polyvinyl alcohol-sodium alginate microcapsule exists in the metal degreasing agent as a carrier of the lipase and the protease. According to the metal degreasing agent, a microcapsule protection structure is used in the metal degreasing agent, the two technical problems of enzyme-surfactant compatibility and enzyme-alkaline environment compatibility which are difficult to solve for a long time in an industrial degreasing agent are solved, the degreasing agent is easy to actually operate, special equipment is not needed, a traditional degreasing agent can be directly replaced, and the metal degreasing agent is suitable for industrial application. Good market application prospects are realized.

The invention discloses polymer-based anti-crack concrete and a preparation method thereof, and relates to the technical field of concrete. When the polymer-based anti-crack concrete is prepared, acrylic acid is grafted on the surfaces of pretreated polypropylene particles to prepare modified polypropylene particles; coating sodium metasilicate with sodium alginate to prepare a self-repairing microcapsule; the preparation method comprises the following steps: hydrolyzing 3-glycidyl ether oxypropyl trimethoxy silane, and grafting the hydrolyzed 3-glycidyl ether oxypropyl trimethoxy silane on the surface of silicon dioxide to prepare modified silicon dioxide; mixing the modified polypropylene particles, basalt fibers and polyacrylonitrile fibers to obtain a solid functional component; cement, slag powder, silica fume, an expanding agent, a solid functional component, modified silicon dioxide, a water reducing agent, an air entraining agent, deionized water, river sand, gravel and the pre-wetted self-repairing microcapsule are mixed, and the polymer-based anti-crack concrete is prepared. The polymer-based anti-crack concrete prepared by the invention has excellent anti-crack, freeze-thaw-resistant and self-repairing properties.

The invention discloses a polyaluminum chloride-based flocculant as well as a preparation method and application thereof, belongs to the technical field of preparation of flocculants, and aims at solving the technical problem that the flocculation performance and the stability of a flocculant in the prior art need to be further improved. The surface charges of iron-based particles are adjusted through sodium citrate, so that the problem of particle agglomeration is effectively avoided, the coating uniformity of microgel is improved, and the specific surface area of the material is increased; abundant cation sites are introduced into the trimethylamine modified chitosan, so that the electrostatic adsorption capacity of the microgel on anion pollutants is remarkably enhanced, and meanwhile, the electrical property and the stability of a system are improved; the addition of sodium metasilicate further promotes the modified PAC to form a stable Al-O-Si bridging structure, the material is endowed with good three-dimensional skeleton strength and composite interface stability, the three components cooperate with each other and play key roles in particle dispersity, charge construction and skeleton stability, and finally, an efficient, stable and storable composite flocculation system is constructed.

The invention discloses a fluoride-free strong-acid-free reverse flotation method for extracting a high-purity quartz sand flotation product from granite pegmatite, and belongs to the technical field of mineral flotation. The method comprises the following steps: carrying out graded crushing and ore grinding on granite pegmatite to obtain slurry to be treated; carrying out wet magnetic separation on the to-be-treated slurry to obtain ore pulp after magnetic separation and magnetic-containing minerals; the pH value of the ore pulp is not adjusted, reverse flotation is carried out in the presence of a quartz mixed inhibitor, and a feldspar product and a quartz product are obtained; the quartz mixed inhibitor is a combination of a component A and a component B, wherein the component A is selected from at least one of sodium metasilicate, sodium tripolyphosphate, sodium hexametaphosphate, carboxymethyl cellulose and salinized water glass; the component B is selected from at least one of guar gum, Arabic gum, sodium humate and citric acid. The method is free of fluorine and strong acid, green and efficient, and is a method for preparing high-purity quartz sand from pegmatite with high industrial application feasibility.

The invention discloses an aero-engine runner cleaning agent and a use method thereof. The aero-engine runner cleaning agent is prepared from the following raw material components in parts by weight: 65-80 parts of water, 7-9 parts of sodium metasilicate, 5-8 parts of a composite surfactant, 1-3 parts of triethanolamine oleate and 7-15 parts of saturated isoparaffin. The using method of the cleaning agent comprises the steps that the engine is not detached from an airplane, in the cold running or slow running state of the engine, the cleaning agent is atomized into water particles of 50-100 micrometers through an injection method, the water particles are injected into an air flow channel through an engine cleaning nozzle, and deposits such as carbon, salinization, dust dirt and oil dirt on the engine air flow channel are effectively cleaned on line. The engine runner cleaning agent has the characteristics of no damage, rapidness and no corrosion to a base material, can be used for on-line cleaning of salinization, oil dirt, dirt, carbon deposition and other sediments on the engine runner, and is less in engine cleaning agent consumption and high in cleaning efficiency compared with traditional engine runner cleaning.

The invention discloses a preparation method of a magnesium alloy surface micro-arc oxidation corrosion inhibition coating, which comprises the following steps: placing a magnesium alloy as an anode in a micro-arc oxidation electrolyte, and carrying out constant-current micro-arc oxidation by taking stainless steel as a cathode to form the micro-arc oxidation corrosion inhibition coating on the magnesium alloy surface, the micro-arc oxidation electrolyte comprises 5-30 g / L of sodium hydroxide, 20-50 g / L of sodium metasilicate, 5-10 g / L of sodium carbonate and 1-8 g / L of a micro container, and a solvent is water; the carrier of the microcontainer is mesoporous silica, the inorganic corrosion inhibitor is located on the inner side of a mesoporous channel of the mesoporous silica, and the organic corrosion inhibitor is located on the outer side of the mesoporous channel; and part of the organic corrosion inhibitor and divalent metal ions form an insoluble complex to cover the port of the mesoporous channel. The coating prepared through the method has the self-catalysis dual self-repairing function, the self-repairing problem of local damage of the micro-arc oxidation coating is further solved, and then the corrosion protection performance of the magnesium alloy micro-arc oxidation coating is further improved.

The present application belongs to the technical field of cleaning supplies, and particularly relates to a high-efficiency blood-stain removing powder and a preparation method thereof. The high-efficiency blood-stain removing powder provided by the present application comprises the following raw materials and mass fractions: 45.0-65.0 parts of sodium percarbonate, 12.0-18.0 parts of an auxiliary agent, 11.0-18.0 parts of an auxiliary cleaning agent, 4.0-7.0 parts of anhydrous sodium metasilicate, 1.0-3.0 parts of a non-ionic surfactant, 1.5-2.5 parts of an enzyme preparation, 0.2-1.0 parts of an antibacterial agent, 1.0-3.0 parts of a thickening agent, and 0.1-0.5 parts of a fragrance; the auxiliary cleaning agent is composed of sodium carbonate and sodium alpha-alkenyl sulfonate at a mass ratio of 8.0-12.0:3.0-6.0. When the high-efficiency blood-stain removing powder of the present application is used, no complex operation is needed, and blood stains can be easily removed through simple soaking, without laborious scrubbing, so that the effect of 'quick cleaning and complete stain removal' is truly achieved.

The invention belongs to the technical field of circulating water treatment, and particularly relates to a circulating water scale inhibitor. The invention discloses a water-soluble detergent, which is prepared from the following ingredients in percentage by weight: 3 to 7 parts of tannin, 3 to 7 parts of sodium gluconate, 5 to 15 parts of polyaspartic acid, 5 to 15 parts of sodium polyacrylate, 5 to 15 parts of itaconic acid / 2-acrylamide-2-methylpropanesulfonic acid (IA / AMPS) copolymers, 10 to 20 parts of zinc sulfate, 10 to 20 parts of sodium orthosilicate, 15 to 25 parts of sodium citrate and 5 to 15 parts of sodium dodecyl benzene sulfonate. According to the invention, a water treatment agent with good biodegradability is selected and optimized and compounded, so that the phosphorus-free, environment-friendly and high-performance circulating water corrosion and scale inhibitor is successfully prepared; the cleaning agent does not contain nitrite, phosphate and other substances causing water source pollution, and is green, environment-friendly, convenient to use and low in cost.

The application discloses a tundish slag line dry material, and relates to the technical field of tundish refractory materials. The mass percentage of each raw material component in the tundish slag line dry material is as follows: 26-30% of 3-1mm fused magnesite, 22-28% of 1-0mm fused magnesite, 20-27% of 200-mesh fused magnesite, 1.5-2% of trisodium phosphate hexahydrate, 2-2.5% of sodium metasilicate nonahydrate, 1-1.5% of adipic acid, 4-5% of calcium carbonate, 0.3-0.5% of vermiculite, and the rest of 5-3mm fused magnesite. The application adopts a new composite binder system, solves the environmental protection problem of a traditional phenolic resin binder, and significantly improves the medium-temperature and high-temperature strength, corrosion resistance, thermal shock resistance and heat insulation performance of the magnesia dry material through the synergistic effect among the components, so that the overall optimization of the material performance is realized.

The invention relates to the technical field of strong oil powder heavy oil cold water foaming agents, in particular to a strong oil powder heavy oil cold water foaming agent suitable for various scenes. Comprising the following components: 68%-72% of food-grade granular sodium hydroxide, 8%-12% of sodium metasilicate pentahydrate, 8%-12% of a CAB-35 cocamidopropyl betaine surfactant, 2%-3% of a methyl tert-butyl ether solvent, 0.8%-1% of sunset yellow pigment, 0.8%-1% of lemon essence and 4%-5% of a trace additive. According to the foaming agent, only normal-temperature water needs to be added, a user does not need to prepare special heating equipment and utensils, the corrosion of products can be reduced, oil stains can be quickly decomposed and the soaking and cleaning time can be shortened when the foaming agent is used for disassembling and cleaning hotel purifiers and range hotels in housekeeping and household appliance cleaning industries, and the foaming agent is suitable for different places such as hotels and shopping malls and has wide application prospects. The cleaning agent can play an excellent cleaning role on oil stains on the ground, wall surfaces and various living and industrial equipment, and cleaning products do not need to be replaced according to different scenes.

The invention discloses a steel slag-mineral slag based cementing material for a road base and a preparation method thereof, and belongs to the field of road engineering materials. According to the present invention, the aging steel slag and high slag double solid waste main body (the total doping amount is more than or equal to 70%) is matched with the sodium metasilicate-calcium hydroxide-sodium sulfate ternary composite activator, the calcium sulphoaluminate micro-expansion component and the nanometer C-S-H seed crystal, such that the volume stability can be met under the high content of the steel slag free oxide, the early strength is high, the anti-cracking performance is good, and the anti-cracking performance is good. The cement can completely replace cement to be used for base layers of expressways and heavy-duty roads, and has remarkable economic and environmental benefits.

This invention relates to the field of spray system technology, and more particularly to an alkaline spray system for the production of ethyl chloroformate, comprising the following steps: S1, adding tetramethylammonium hydroxide to water, heating to room temperature, stirring until completely dissolved, adding modified sodium metasilicate, disodium ethylenediaminetetraacetate, and sodium lignosulfonate, controlling the temperature and stirring, filtering to obtain an alkaline solution; S2, turning on the power to the control system, ensuring the control system operates normally, setting the operating parameters of the spray system, starting the alkaline solution pump, drawing the alkaline solution from the storage tank, conveying it through pipelines to the spray heads, adjusting the pump's output flow rate, and starting intermittent, uniform spraying of the alkaline solution. The waste liquid after spraying flows through pipelines into a sedimentation tank for post-treatment. The alkaline spray system of this invention can significantly improve the purification efficiency of acidic gases, heavy metal ions, and organic pollutants in waste gas.

An environment-friendly cutting fluid comprises, by weight percentage, 2-20% of long-chain dibasic acid-amino acid, 1-20% of amino acid long-chain alcohol ester, 1-20% of glycerol, 0.1-5% of sodium metasilicate and the balance of water, the long-chain dibasic acid-amino acid being obtained by connecting two amino acids to the carboxyl groups at both ends of the long-chain dibasic acid, and the amino acid long-chain alcohol ester being an alcohol ester compound formed by the reaction of amino acid and long-chain alcohol. The combination of the long-chain dibasic acid-amino acid and the amino acid long-chain alcohol ester makes the cutting fluid have strong lubricating performance and be applicable to the processing of aluminum alloy. The long-chain dibasic acid-amino acid and the sodium metasilicate have strong aluminum corrosion inhibition capacity, and their combination can protect the aluminum alloy during use.

The invention discloses a system for preparing functional water rich in high-concentration sodium metasilicate, which comprises a source water tank, the source water tank is connected with an inlet of a source water pump, an outlet of the source water pump is connected with an inlet of a quartz sand filter through a pipeline, and a flowmeter and a valve are arranged on the pipeline. An outlet of the quartz sand filter is connected with an inlet of the activated carbon filter, an outlet of the activated carbon filter is connected with an inlet of the ultrafiltration equipment, and an outlet of the ultrafiltration equipment is connected with an inlet of the ion exchange assembly; an outlet of the ion exchange assembly is sequentially connected with a storage and conversion assembly, a double-group reverse osmosis host, a finished product water storage tank, a constant-pressure water supply pump, a diatomite filter, a titanium rod filter and a UV sterilizer. According to the invention, the conversion of the silicon element can be more effectively promoted, and the purity and activity of the biological organic silicon element are greatly improved.

This invention provides an alkaline bottle cleaner, its preparation method, and its application. The alkaline bottle cleaner comprises 16-22 wt.% sodium hydroxide, 47-66 wt.% sodium metasilicate pentahydrate, 3-6 wt.% dispersant, 8-12 wt.% alkyl glycoside quaternary ammonium salt, 4-8 wt.% ethylene glycol monophenyl ether, and 3-10 wt.% additives. This alkaline bottle cleaner has strong cleaning and decontamination capabilities, can peel off labels and markings in one piece, and does not affect the cleanliness and transparency of the bottle after cleaning. It produces no phosphates or carcinogens, meeting environmental protection requirements.

The invention discloses coarse grinding liquid for a diamond substrate, a preparation method of the coarse grinding liquid and a coarse grinding method of the diamond substrate, and relates to the technical field of diamond processing. The coarse grinding liquid for the diamond substrate comprises the following components in parts by mass: 0.5-1.5 parts of diamond, 0.1-1 part of a dispersing agent, 1-5 parts of a pH regulator, 0.1-1 part of a suspending agent and 88-98 parts of water, wherein the D50 of the diamond is 10 [mu] m-50 [mu] m; the suspending agent comprises at least one of xanthan gum, carbomer, sodium polyacrylate and bentonite; the dispersing agent comprises at least one of polymaleic anhydride, sodium pyrophosphate, anhydrous sodium metasilicate and polyacrylamide. According to the technical scheme, by adjusting the particle size of the grinding material and adjusting the composition of the suspending agent and the dispersing agent, the problems of low grinding rate, large surface roughness and high total thickness deviation of the existing grinding liquid for the diamond substrate can be solved.

The invention discloses a special compound fertilizer for food crops as well as a preparation method and application thereof, and belongs to the technical field of organic and microbial fertilizers. The compound fertilizer comprises a basic fertilizer and an organic biological fertilizer source, wherein the basic fertilizer is prepared from sulfur coated urea, urea, calcium superphosphate, potassium chloride, sodium metasilicate and oyster shell powder; the organic biological fertilizer source is composed of a vinasse fermentation product, a microbial activity protective agent and lignosulfonate. The vinasse fermented product is prepared by carrying out three-stage solid state fermentation on vinasse by adopting a compound bacterium suspension consisting of mycobacillus halophilus and ocean sediment vesicular bacillus. Through synergistic fermentation of functional strains, compounding of a microbial active protective agent and introduction of a slow-release nitrogen source and stress-resistant components, synergistic interaction of efficient release of nutrients, soil improvement and improvement of crop stress resistance is realized. The compound fertilizer is suitable for grain crops such as wheat and rice, can remarkably improve root activity, yield and stress resistance, and has a wide application prospect.

To provide a geopolymer composition which has high viscosity and non-separation property of materials in water without using additives such as organic thickeners or surfactants as in conventional cement-based materials, and which can exhibit high strength comparable to that in the air even in water where heating curing cannot be performed; and also to provide a manufacturing method therefor.SOLUTION: As sodium metasilicate powder is used as an alkali raw material of a geopolymer composition that is filled and solidified in water, the water content in the raw materials can be significantly reduced as compared to the case where water glass is mainly used as the alkali raw material, the geopolymer can be densified, and the filling strength in water can be increased. Accordingly, even without using additives such as organic thickeners or surfactants as in conventional cement-based materials, the composition can exhibit high viscosity and high material non-separation property in water, and can also exhibit high strength in water where heating curing cannot be performed, comparable to that in the air.SELECTED DRAWING: Figure 1

The invention discloses fiber-free seawater and sea sand alkali-activated ultrahigh-strength concrete cured at normal temperature. Solid potassium carbonate and solid sodium metasilicate are used as composite excitants, under the condition that fibers are not doped, seawater and sea sand are used as water sand for mixing, industrial solid waste slag and silica fume are used as precursor materials, quartz powder is used as a filling material, borax is used as a retarder, the proportion of all raw material components is optimized, and a single-component forming mode is adopted, so that the fiber-reinforced concrete is prepared. The preparation of the ultrahigh-strength concrete can be realized under a normal-temperature sealed curing condition. According to the invention, the problem that the ultra-high strength performance and excellent flow / setting performance of the alkali-activated concrete are difficult to consider is effectively solved, and the popularization and application of the alkali-activated ultra-high strength concrete in actual engineering can be promoted. The technological process is simple, and the production energy consumption and cost are low; seawater and sea sand are used as water sand for mixing concrete, development and utilization of marine resources are promoted, dependence of concrete materials on freshwater river sand resources is reduced, and green and sustainable development of the building industry is facilitated.

The invention discloses a new energy battery aluminum shell microbial water-based cleaning agent and a preparation method thereof, and belongs to the field of chemical engineering, the new energy battery aluminum shell microbial water-based cleaning agent comprises 10-20% of potassium hydroxide, 5-10% of sodium metasilicate pentahydrate, 1-5% of sodium gluconate, 1-5% of a corrosion inhibitor, 1-5% of a microbial nutrient, 1-5% of a penetrant, 1-5% of isomeric alcohol ethoxylates, 1-5% of sodium alkyl naphthalene sulfonate, 1-5% of an auxiliary agent, and 1-5% of sodium lignin sulfonate. 0-2% of a polyether defoaming agent, 0-1% of microbial bacteria and the balance of deionized water, totaling 100%. The product disclosed by the invention can decompose organic matters into harmless simple substances by utilizing a microbiological degradation technology and combining with an efficient emulsifying surfactant, so that the wastewater discharge is reduced, and the wastewater treatment cost is reduced.

The application discloses a rough grinding liquid for diamond substrates and a preparation method thereof, and a rough grinding method for diamond substrates, and relates to the technical field of diamond processing. The rough grinding liquid for diamond substrates comprises the following components in mass parts: diamond 0.5-1.5 parts, dispersing agent 0.1-1 part, pH regulator 1-5 parts, suspending agent 0.1-1 part, and water 88-98 parts; wherein the D50 of the diamond is 10-50 mu m; the suspending agent comprises at least one of xanthan gum, carbomer, sodium polyacrylate and bentonite; and the dispersing agent comprises at least one of polymaleic anhydride, sodium pyrophosphate, anhydrous sodium metasilicate and polyacrylamide. The technical scheme of the application can solve the problems of low grinding rate, large surface roughness and high total thickness deviation of the existing grinding liquid for diamond substrates by adjusting the particle size of the abrasive and the composition of the suspending agent and the dispersing agent.

The invention discloses special oil removal powder for a metal zirconium tube production process in the field of nuclear industry, which comprises oil removal powder, the oil removal powder is prepared by uniformly mixing the following raw materials in parts by weight: 36-44 parts of sodium hydroxide, 14-18 parts of sodium carbonate, 11-14 parts of anhydrous sodium metasilicate, 9-11 parts of sodium dodecyl benzene sulfonate, 8-9 parts of sodium carboxymethyl cellulose, 7-8 parts of sodium alkenyl sulfonate and 4-6 parts of dodecyl phosphate. Particularly, the oil cleaning performance on oil stains on the inner wall of a slender zirconium pipe is good, the oil removal speed is high, the oil removal efficiency is several times that of an imported product, the cost is reduced to about 40% of the price of the imported oil removal product, the escaped smell is small, and the working environment atmosphere is more environment-friendly.

The present application relates to inorganic cementing material, solid waste resource utilization and soil solidifying material technical field, specifically relates to a kind of preparation method of micro-nano solid waste base soil solidifying agent.It aims at solving the technical problems of single function and insufficient durability in prior art.The present application grinds granulated blast furnace slag and calcium silicate hydrate seed together, to obtain modified slag micro powder;Steel slag and fly ash are ultrafine ground to obtain steel slag-fly ash composite micro powder;Preparation mesoporous nano slag-biochar composite core, after impregnation load sodium metasilicate and nano zero-valent iron, in turn deposit calcium alginate-cystosine intermediate shell layer and silane coupling agent modified nano silicon dioxide and nano waste concrete recycled micro powder composite outer shell layer, to obtain multi-layer coated active particle;Silicon dioxide, sodium sulfate and nano calcium hydroxide are ball milled into composite activator;The above components are compounded with dispersion stabilizer under inert gas protection.

The present application relates to the field of chemical material environmental protection technology, and particularly to a method for preparing nine-water and five-water sodium metasilicate from by-product lye in the process of producing zirconium oxychloride by alkali fusion method.The method comprises the following steps: removing zirconium from the by-product lye by once concentration and filtration, then adopting stepwise cooling and temperature control crystallization after twice concentration of the filtrate, and finally obtaining nine-water sodium metasilicate by solid-liquid separation through a scraper type centrifuge and obtaining five-water sodium metasilicate by drying through a vibrating fluidized bed.In the preparation process, no reagent for adjusting modulus is needed, and through specific step-by-step concentration and zirconium removal process, full component utilization of waste liquid is realized.The nine-water and five-water sodium metasilicate products prepared by the method have product indexes meeting the requirements of superior products, and have the characteristics of large crystal particles, less mother liquor entrainment, high whiteness, and low water insoluble substance.The process not only significantly reduces the production cost, but also realizes green preparation of non-phosphorus washing aid and closed circuit circulation of zirconium resources, and has significant economic benefits and environmental protection value.