40 results about "Disodium pyrophosphate" patented technology

Aqueous oral care compositions containing hydrogen peroxide and having improved stability, such compositions containing at least 35%, by weight of the composition, of water and further including a peroxide compatible abrasive such as fused silica, calcium pyrophosphate and/or dicalcium phosphate, a gel network, and a protection system containing sodium acid pyrophosphate, disodium phosphate, and/or phosphoric acid.

The invention provides a process for preparing alpha-acetyl-gamma-butyrolactone for co-production of various phosphates. The process is applicable to producing the alpha-acetyl-gamma-butyrolactone through acylation and phosphoric acid neutralization of gamma-butyrolactone and acetyl reagents serving as raw materials under the catalytic action of metallic sodium, and effective separation of an organic phase and an aqueous phase is achieved through controlling the concentration of phosphoric acid and the system temperature during oil-water separation. The organic phase is rectified to obtain alpha-acetyl-gamma-butyrolactone; and sodium dihydrogen phosphate dihydrate, sodium hexametaphosphate, sodium trimetaphosphate, sodium acid pyrophosphate, sodium dihydrogen phosphate dodecahydrate, trisodium phosphate dodecahydrate, sodium tripolyphosphate and sodium pyrophosphate are obtained through steps such as pH adjustment, concentration, decompressional filtration and the like of the aqueous phase. The process produces both main products and byproducts, achieves co-production of various products by one process, energy conservation, emission reduction and ecological environment protection, and is safe in operation, simple in process, easy to industrialize and low in cost.

The invention discloses a production method of acid calcium pyrophosphate for food leavening agent. The production method comprises the following steps: carrying out neutralization by taking phosphoric acid and lime milk, or phosphoric acid and limestone as raw materials so as to obtain a monocalcium phosphate solution; drying the monocalcium phosphate solution by a spray drying tower and polymerizing by a polymerization furnace so as to form the acid calcium pyrophosphate which is used as a food leavening agent. With the production method of the acid calcium pyrophosphate for the food leavening agent, the problem of excessive sodium in the application process of the acid calcium pyrophosphate is solved, and the acid calcium pyrophosphate has a special effect of calcium supplement, so that the acid calcium pyrophosphate can replace the acid sodium pyrophosphate in the baking field. The production technology provided by the invention is strong in operability, the technological process is very convenient for industrialization, and the produced products are high in purity.

The invention discloses an environmental-friendly tea planting compound fertilizer. The environmental-friendly tea planting compound fertilizer is prepared from urea, kaolin, bentonite, humic acid, goose excrement, pig manure, sheep manure, cow dung, quail excrement, chicken manure, dipotassium phosphate, sodium acid pyrophosphate, sodium acid pyrophosphate, sodium dihydrogen phosphate, calcium nitrate, disodium hydrogen phosphate, bdellovibrio powder, bacteriophage powder, agritol powder, candida powder, cotton straw powder, rice straw powder, rhodococcus powder, buxus megistophylla wood flour, larix gmelini wood flour, plant activating enzyme and microelements. The prepared compound fertilizer contains N, P, K and other major element nutrients and further contains a certain proportion of microelements, the tea fertilizer requirement law and the current tea forest soil nutrient situation are combined, and the formula has high specificity. The environmental-friendly tea planting compound fertilizer is higher in pertinency for the tea production process and is more comprehensive, balanced and reasonable in nutrition, and the actual application effect is better.

The invention relates to a preparation method of a borate-type brake fluid, belonging to the technical field of automobile brake fluids. The method comprises the following steps: carrying out esterification and amide reaction on 1,2-propanediol and thionyl chloride in a flaxseed oil environment, and carrying out ring opening and other reactions on the reaction product, dimethylamine and pyrazole under the action of sodium hydride to form ketoximes, thereby increasing amino and hydroxy groups; combining the ketoximes with platinum ions in a platinum nitrate solution in an alkaline environment to form steric hindrance groups of platinum coordination compounds; in the process of preparing borate from propanol, epoxypropane and boric acid, combining the steric hindrance groups of platinum coordination compounds with borate by using sodium acid pyrophosphate as a chelator to increase the steric hindrance of borate, thereby resisting the attack of water molecules and enhancing the water resistance; and mixing with a diluter triethylene glycol methyl ether and other aids, thereby obtaining the borate-type brake fluid. The preparation method solves the problems of high hydrolysis tendency and poor water resistance in the traditional borate-type brake fluid.

The invention discloses a wear-resistant material for a mobile phone screen and preparation method of the wear-resistant material. The material comprises the following raw materials in parts by weight: 50-60 parts of silicon dioxide, 10-20 parts of calcium oxide, 20-30 parts of aluminum oxide, 10-20 parts of potassium oxide, 15-20 parts of antimony oxide, 20-40 parts of sodium acid pyrophosphate, 30-60 parts of sodium dihydrogen phosphate, 20-60 parts of disodium hydrogen phosphate, 24-30 parts of sodium metaphosphate, 30-50 parts of sodium phosphate and 20-60 parts of tartaric acid. The preparation method comprises the following steps: uniformly mixing components, heating at 300-400 DEG.C for 1-2 hours, performing tablet stretching by using a tabletting machine to obtain the mobile phone screen material with a diameter of 0.004-0.01mm. The mobile phone screen material prepared by the invention is good in wear-resistance.

Salt substitute, in particular granular, crystalline or pulverulent and preferably for use as garnish salt or salt substitute, which contains

30 to 90 wt % sodium chloride or a mixture of sodium chloride and potassium chloride in a weight ratio of 1:2 to 2:1,

10 to 70 wt % of a combination of at least one carbon dioxide carrier and at least one acid carrier and

optionally up to 20 wt % of further additives,

wherein the carbon dioxide carrier is selected from sodium carbonate, sodium hydrogen carbonate, potassium carbonate (potash), potassium hydrogen carbonate, magnesium carbonate, magnesium hydrogen carbonate, calcium carbonate, calcium hydrogen carbonate, aluminium carbonate, aluminium hydrogen carbonate, ammonium carbonate, ammonium hydrogen carbonate, ammonium carbamate, hartshorn salt and mixtures of the above and

the at least one acid carrier is selected from sodium acid pyrophosphate (SAPP), monocalcium phosphate monohydrate (MCPM), anhydrous monocalcium phosphate (AMCP), all further hyd rates of monocalcium phosphate, d icalcium p hosphate dihydrate (DCPD), all further hydrates of dicalcium phosphate, sodium aluminium sulphate (SAS), sodium aluminium phosphate (SALP), calcium magnesium aluminium phosphate, calcium polyphosphate, calcium pyrophosphate, magnesium polyphosphate, magnesium pyrophosphate, calcium hydrogen phosphate, citric acid, fumaric acid, aspartic acid, tartaric acid, cream of tartar (potassium hydrogen tartrate), glucono-delta-lactone (GDL), sodium hydrogen citrate, lactic acid and mixtures of the above.

The invention discloses sodium modified chlorite, and the key points of the technical scheme are that: sodium modified chlorite ingredients comprise chlorite, magnesium oxide, sodium carbonate, instant sodium silicate, polyvinyl alcohol, hydroxypropyl methyl cellulose and sodium acid pyrophosphate. A production method of the sodium modified chlorite is as follows: sodium modified chlorite ingredients are transported into a mill for powder milling, and the milled powder is the sodium modified chlorite. By first sodium modification and then ingredient compounding, chemical reaction of the sodium carbonate and the instant sodium silicate, the polyvinyl alcohol and the hydroxypropyl methyl cellulose can be avoided. According to the needs of product quality, the sodium acid pyrophosphate is used for adjusting the PH of the sodium modified chlorite. The sodium modified chlorite has the characteristics of good adsorption, suspension property, thixotropy, lubricity and thermal stability and high plasticity, and is applicable to the production of filler, sorbents, suspending agents and lubricants for asphalt felts, paper making, pesticides and fire control products.

The invention provides a preparation method of straw mushroom shrimp paste. The preparation method comprises the following steps of firstly taking straw mushrooms, thoroughly cleaning the taken straw mushrooms, airing the cleaned straw mushrooms, and crushing the aired straw mushrooms so as to obtain straw mushroom particles; then placing shrimp meat into a quality improvement agent for soaking, taking out the soaked shrimp meat, and performing mincing so as to obtain shrimp meat particles; and mixing the straw mushroom particles with the shrimp meat particles, table salt, egg white, starch and avocado oil to obtain a mixture, performing high-speed chopping to obtain paste, performing heat preservation at 35 DEG C for 20-40min, then performing heating in water bath of 90 DEG C for 15-30min, after the heating is completed, placing the heated paste into ice water for cooling, and then placing the cooled paste under the condition of 4 DEG C for 12-18h so as to obtain the straw mushroom shrimp paste, wherein the quality improvement agent is a mixed aqueous solution of sodium hexametaphosphate, trisodium phosphate, acidic sodium pyrophosphate, disodium dihydrogen pyrophosphate, sodium citrate, propylene glycol alginate and xanthan gum. The straw mushroom shrimp paste disclosed by the invention has favorable color, favorable water retention property and favorable gel intensity, the processing technology is simple, storage and transportation of products are facilitated, and the straw mushroom shrimp paste is suitable for industrialized mass production.

An oral composition is provided comprising at least 0.5% by weight of the composition of pyrophosphate in an orally acceptable carrier, wherein the pyrophosphate is provided by a mixture of disodium pyrophosphate and tetrapotassium pyrophosphate in a ratio from disodium pyrophosphate to tetrapotassium pyrophosphate in the range of from 1:0.4 to 1:1.2 and wherein the pH value of the composition is in the range of from 6.0 to 8.0. The oral composition can be used for prevention and control of tartar and/or calculus formation.

The invention discloses a special tea leaf organic composite fertilizer and a preparation method thereof. The special tea leaf organic composite fertilizer comprises the following components in partsby weight: bean dregs, bone meal, humic acid, potassium chloride, powder of nitrogen-fixing bacteria, microorganism strains, urea, bdellovibrio powder, cotton straw powder, dipotassium phosphate, sodium acid pyrophosphate, monocalcium phosphate, plant activating enzymes, bacillus thuringiensis powder, rhodococcus powder, mononucleosis powder, biogas residues, a conditioner, phosphorus bacterium powder, potassium bacterium powder, powdered rock phosphate, tapes japonica shell powder, veronica linariifolia straw powder, clam shell powder, cedarwood bits, oriental arborvitae bits and actinomycetes powder. The preparation method comprises the following steps: preparing a mixture A and a mixture B, and mixing the mixtures, thereby obtaining the fertilizer. Macroelements and microelements are reasonably proportioned, absorption of tea leaves is facilitated, the quality of tea leaves can be improved through the purely natural green fertilizer, resources can be effectively utilized, and the environment is protected.