1540 results about "Potassium silicate" patented technology

The invention relates to a liquid silicon fertilizer and a production technique thereof, and belongs to the technical field of fertilizer. The liquid silicon fertilizer is characterized in that raw materials comprise soluble silicon, urea, trace elements, chelate and fulvic acid, which are prepared into the balanced compound fertilizer. The production technique comprises the following steps: 1, dissolving solid potassium metasilicate; 2, dissolving sulfate of the trace elements in water, and adding EDTA into the mixture to obtain the chelate of the EDTA trace elements; and adding boric acid, ammonium molybdate, the urea and the fulvic acid into the mixture after cooling and filtration; and 3, blending the chelate into the mixture to obtain the liquid silicon fertilizer. The production technique is characterized in that (1) the production technique uses water glass and the fulvic acid chelate, has better buffer action for alkali, and can effectively improve stability of SiO3; and (2) the trace elements are chelated twice by using the EDTA and the fulvic acid to form chelated metal ions, so as to prevent silicic acid radicals and the metal ions reacting to form silicate difficult to be dissolved in water, and influence utilization rate of silicon element. The production technique uses the liquid potassium metasilicate and large amount of elements, trace elements and organic substances to establish a balanced compound system, and can effectively improve utilization rate of the silicon element and various nutrient elements for the crops.

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.

A Fe-based catalyst for the Fischer-Tropsch synthesis contains Re2O3, Fe3O4, La2O3, CuO, K2O and SiO2. It is prepared through using oxidant to oxidize partially the ferrous sulfate to obtain the mixed solution of iron sulfate and ferrous sulfate, mixing with the mixed solution of lanthanum nitrate and copper salt, fast depositing by alkaline compound, washing the deposited slurry, adding potassium silicate-water glass solution, and spray drying.

A Fe-base catalyst with high antiwear performance, activity and stability for the Fischer-Tropsch synthesis contains Fe, Zn, Cu, K and SiO2. It is prepared through proportionally mixing sodium carbonate solution as precipitant with the mixed solution of iron nitrate, zinc nitrate and copper acetate, depositing to obtain deposit slurry, adding the mixed solution of potassium silicate and silicon sol, spray drying and calcining.

The invention discloses water-based inorganic resin and a preparation method thereof. The preparation method comprises the following steps: carrying out hydrolysis reaction on a formula amount of potassium silicate, silica sol and lithium silicate under the effect of a coupling agent, and after reaction is stable, adding elastic emulsion so as to adjust the flexibility, thus obtaining the water-based inorganic resin with excellent properties. The water-based inorganic resin prepared by the method is environment-friendly, odorless, non-toxic, non-ignitable and unexplosive, and has very excellent salt fog resistance, permanent corrosion resistance, high hardness, strong adhesive force and heat and humidity resistance, and therefore, the water-based inorganic resin has wide development space in numerous heavy corrosion protection fields and atmosphere and ocean steel structure heavy corrosion protection fields.

A coating, method of coating and substrates coated thereby, wherein the coating contains an inorganic adhesive such as an alkali/alkaline earth metal silicate such as sodium silicate, potassium silicate, calcium silicate, and magnesium silicate; a filler such as a metal oxide for example silicon dioxide, aluminum oxide, titanium dioxide, magnesium oxide, calcium oxide and boron oxide; and one or more emissivity agents such as silicon hexaboride, carbon tetraboride, silicon tetraboride, silicon carbide, molybdenum disilicide, tungsten disilicide, zirconium diboride, cupric chromite, or metallic oxides such as iron oxides, magnesium oxides, manganese oxides, chromium oxides and copper chromium oxides, and derivatives thereof. In a coating solution, an admixture of the coating contains water. A stabilizer such as bentonite, kaolin, magnesium alumina silicon clay, tabular alumina and stabilized zirconium oxide may be added.

The invention discloses fly ash geopolymer concrete. The concrete is prepared by taking fly ash and metakaolin as base materials, taking one or more than two of sodium hydroxide, potassium hydroxide, sodium silicate and potassium silicate as well as water glass as alkaline activators, and adding modified ceramic microsphere particles, polymer fibers, coarse aggregates, fine aggregates and water. The fly ash geopolymer concrete has good mechanical properties, high durability and high corrosion resistance.

The invention discloses a water-based capillary crystalline type concrete surface layer repairing and reinforcing material as well as a preparation method and application thereof. The material comprises 48-60 parts of lithium silicate, 20-28 parts of potassium silicate, 24-30 parts of sodium silicate, 2-10 parts of organosilicon, 0.5-2 parts of a coagulant, 0.8-1.8 parts of a waterproof agent, 0.1-0.25 parts of a surfactant, 0.2-1 part of a reaction retarder, 0.1-0.24 parts of an anti-freezing agent, 0.6-1.2 parts of fluosilicate, 0.1-0.2 parts of an antifoaming agent, 0.08-0.16 parts of a multifunctional auxiliary agent, 0.5-2 parts of an early strength agent and 95-115 parts of water. The water-based capillary crystalline type concrete surface layer repairing and reinforcing material hasthe characteristic of quick strength improvement, has an obvious repairing effect on concrete and mortar, and can repair and heal cracks and fine cracks, so that the water permeability resistance ofthe concrete can be improved. The water-based capillary crystalline type concrete surface layer repairing and reinforcing material is good in durability, long in service life, simple and convenient toprepare and convenient to construct.

The invention relates to the technical field of coatings for inner walls and outer walls of buildings, in particular to an inorganic silicate coating, a preparation method thereof and an application of the coating. The inorganic silicate coating is prepared from, by weight, 18-30 parts of deionized water, 0.1-0.8 part of cellulose, 0.5-1.5 parts of dispersing agents, 0.01-1.0 part of wetting agents, 0.01-1.0 part of defoaming agents, 10-20 parts of titanium dioxide, 10-20 parts of ground calcium carbonate, 10-20 parts of talcum powder, 5-10 parts of emulsion, 20-30 parts of modified potassiumsilicate, 0.01-5 parts of stabilizing agents and 0.01-5 parts of hydrophobic agents. The modified potassium silicate is selected from one or more of VB-2837 and INOCOT 955 or K-2837, and the emulsionis selected form one or more of styrene-acrylic ester and pure acrylic emulsion. The coating reaches the standard without a detected VOC (volatile organic compound) and good in fungus resistant and falling-off prevention performances.

The invention discloses an alkaline fertilizer composed of the following components in percentage by weight: 31-99.4% of macroelements, 0.5-50% of medium elements, 0.1-15% of microelements and 0-50% of synergic components, wherein the macroelements include two and even more selected from urea, diammonium phosphate, ammonium polyphosphate, dipotassium phosphate, tripotassium phosphate, potassium pyrophosphate, potassium tripolyphosphate, potassium nitrate, potassium carbonate, potassium sulfate, potassium chloride, potassium formate, potassium silicate and potassium hydroxide; the medium elements are one or more selected from calcium nitrate, calcium chloride, magnesium chloride, magnesium sulfate, EDTA calcium and EDTA magnesium; the microelements are one or more selected from ferrous sulfate, zinc sulfate, manganese sulfate, copper sulfate or an EDTA chelate of iron, zinc, manganese and copper, EDDHA iron, borax, disodium octaborate tetrahydrate and sodium molybdate; and the synergic components include one or more selected from sodium humate, potassium humate, sodium fulvate, potassium fulvate, sodium alginate, potassium alginate and a plant growth regulator.

The invention discloses a nano ceramic coating with high emissivity, which is prepared from a high temperature resistant basic material, an additive with high emissivity, a binder, a stabilizing agent and a solvent. The high temperature resistant basic material and the additive with high emissivity are one or several of alumina, silicon oxide, boron nitride, silicon carbide, ferric oxide and cerium oxide. The binder is one or several of silica gel, potassium silicate solution, aluminium phosphate solution, silicon oxide hydrate, ethanol and water. By weight percentage, the high temperature resistant basic material and the additive with high emissivity account for 5-78%, the binder accounts for 5-30%, the stabilizing agent accounts for 0.5-3% and the balance of solvent is water. The coating which can be used above 1300 DEG C has the advantages of being wide in work temperature range with the maximum service temperature close to 2000 DEG C, applicable to various base materials, strong in adhesive force to the base materials, applicable to reaction atmosphere, good in long-time durability and strong in heat shock endurance, improving thermal efficiency, lowering temperature of the base materials, and being excellent in abrasion and corrosion resistance, less in impact on environment, convenient to use and the like.

The synthesis of high-molar ratio potassium silicate adhesive includes adding water soluble silica sol to low-molar ratio potassium silicate solution, adding small amount of silane as blocking agent and adhesion reinforcer, adding proper stabilizer, and adding organic polymer emulsion to improve the filming property of the adhesive. One kind of anticorrosive paint composition obtained through compounding the adhesive and zinc powder is also disclosed.

PCT No. PCT/EP96/04820 Sec. 371 Date Oct. 26, 1998 Sec. 102(e) Date Oct. 26, 1998 PCT Filed Nov. 5, 1996 PCT Pub. No. WO97/18161 PCT Pub. Date May 22, 1997The invention concerns a process for preparing organically modified aerogels, in which a) a silicic acid sol with a pH </=4.0 is produced from an aqueous potassium silicate solution using at least one organic and/or inorganic acid; b) the resultant silicic acid sol is polycondensed by the addition of a base to form SiO2 gel; c) the gel produced in step b) is washed with an organic solvent until the water content of the gel is </=5 wt %; d) the gel obtained in step c) is surface-modified with at least one C1-6 alcohol; and e) the surface-modified which are difficult to dissolve in the silicic acid sol. Before step b), the resultant salts, which are difficult to dissolve, are precipitated to the greates possible extent and separated from the silicic acid sol.

The invention discloses a feather protein fiber and a method for preparing the same. The feather protein fiber comprises the following components: 5-40 parts by weight of feather protein and 60-95 parts by weight of chemical fiber. The method for preparing the feather protein fiber comprises the following steps: A, feather protein spinning solution preparing: dissolving feather in an alkaline aqueous solution comprising sodium silicate and potassium silicate with the total mass concentration of 20-35%, and filtering to obtain the feather protein spinning solution, wherein the mass ratio of the sodium silicate to the potassium silicate is 1:(0.5-1); B, blending the feather protein spinning solution and the chemical fiber spinning solution, and spinning; and C, subjecting the feather protein fiber trickle to coagulation-bath treatment, pickling, washing and drying to obtain the feather protein fiber. The method for preparing the feather protein fiber can effectively ensure that the feather protein and the chemical fiber are fully and uniformly blended to achieve the purpose of spinning.

Water-borne permeable crystalline waterproofing material and a preparation method thereof belong to the technical field of the building engineering; the waterproof material comprises components according to the mass percentage: 0.01-0.07% of alkyl benzene sulfonic acid solution, 0.05-0.3% of isopropanol, 0.005-0.075% of nonylphenol polyoxyethylene ether, 7.5-25.0% of sodium silicate, 0.75-3.5% oftartaric acid powder, 0.532-2.428% of anhydrous sodium carbonate, 1.65-7.5% of potassium methyl silicate solution and the rest of ionized water. The waterproofing material has simple production technique, low cost, outstanding waterproofing effect, is not-toxic and pollution-free, and belongs to the environmental friendly building material.

The invention discloses an inorganic potassium lithium silicate solution composite organic fluorosilicone coating which is prepared from, by weight, 20-65 parts of modified potassium lithium silicatesolution, 5-25 parts of organic fluorosilicone emulsion, 0.2-0.3 part of stabilizing agents, 0.1-1 part of wetting agents, 0.1-1 part of dispersing agents, 0.1-0.3 part of defoaming agents, 0.5-1 partof coalescing agents, 0.2-1 part of thickening agents, 0.1-0.3 part of preservative and 15-35 parts of deionized water. The invention further discloses a preparation method of the coating. Low-modulus lithium silicate and potassium silicate mixed solution and basic silica sol serve as main raw materials, organic silane coupling agents serve as modifying agents, so that stable potassium lithium silicate mixed solution is prepared, the stable potassium lithium silicate mixed solution and the organic fluorosilicone emulsion are coldly spliced and combined to serve as film-forming materials of the coating, pigments, fillers and various additives are added, and a multifunctional inorganic and organic fluorosilicone composite system coating is prepared. The coating is wide in application, and acoating film is excellent in physical and chemical performance.

The invention relates to green nutritional compound fertilizer and a method for preparing same. The green nutritional compound fertilizer is prepared from plant material, urea or ammonium nitrate, superphosphate, potassium silicate, sodium borate, hydrated magnesium sulphate, zinc sulphate, chelated iron, sodium molybdenum, manganese sulfate, copper sulfate, cobalt nitrate and bio-fertilizer. 60 percent of the green nutritional compound fertilizer can be more easily absorbed by the crops, and the residue of the green nutritional compound fertilizer can be reduced. The green nutritional compound fertilizer can promote the growth of the crops, improve the quality of the crops, make the crops sprout and ripe earlier and have the developed root system and the luxuriant foliage and increase the yield of the crops by 50-80 percent. The green nutritional compound fertilizer can inhibit the breeding and the propagation of pathogens in the soil, reduce the crop diseases, enhance the disease resistance ability of the crops, improve the soil structure, activate the soil nutrient and realize the ecological planting of the crops.

The invention relates to a water-soluble polymer synergist used for fertilizers, its preparation method and application. The fertilizer synergist consists of 10%-20% (weight percent) of guar gum, 20%-30% (weight percent) of non-ionic polyacrylamide, 20%-30% (weight percent) of potassium polyacrylate, and 20%-30% (weight percent) of polysilicate potassium. The water-soluble polymer synergist of the invention can obviously increase the transmission speed and transmission distance of phosphorus in soil, reduce the fixation probability of phosphorus, enhance the water-retention property and fertilizer preserving property of soil, substantially increase crop yield, as well as effectively improve fertilizer utilization rate and reduce fertilizer usage.

The present invention provides a sintered flux for stainless steel. The slag system of the flux is CaF2-Al2O3. The invention is characterized in that the oxidability and the sensibility of the gas hole are small. The stainless steel structure and the stainless steel overlaying welding can be welded when the sintered flux is matched with the corresponding welding stick. The invention is characterized in that the sintered flux comprises the following components: more than 40% by weight of calcium fluoride (CaF2), and furthermore the summation of the calcium fluoride and aluminum oxide (CaF2+Al2O3) is larger than or equal to 70% by weight; other components as follows: smaller than or equal to 5% by weight of CaCO3, 1-3% by weight of CrO3, smaller than 4% by weight of NaAlF6, 1-3% by weight of rare earth fluoride, 3-10% by weight of SiO2, 3-10% by weight of MnO, 1-3% by weight of TiO2, 5-10% by weight of MgO, and 1-3% of iron alloy; and bonding agent of sodium potassium silicate.