7 results about "Sodium thiophosphate" patented technology

The invention belongs to the field of feed protein processing, and particularly relates to a method for improving the bioavailability of animal feed protein through chemical enzymolysis. The method comprises the following steps: mixing a compound protein raw material with water to form a suspension; sodium tripolyphosphate is added for phosphorylation pretreatment, so that protein is subjected to specific modification; after the pH is adjusted to be acidic, pepsase and acid phosphatase are added at the same time for an enzymolysis reaction; and after the reaction is finished, performing enzyme deactivation and drying to obtain the modified feed protein. According to the method, a specific enzyme cutting site is created on a protein molecule through chemical phosphorylation, then directional hydrolysis is achieved through efficient recognition of pepsin on the site, and meanwhile dynamic regulation and control of the hydrolysis process are achieved by means of the dephosphorylation effect of acid phosphatase. The obtained product has the outstanding advantages of high content of small peptides, good digestive absorbability, low bitterness, strong biological activity and the like, and the bioavailability of feed protein is remarkably improved.

The preparation method comprises the following steps: dissolving diisobutyl dithiophosphoric acid in toluene, adding a phase transfer catalyst, slowly dropwise adding water under the protection of nitrogen, heating and refluxing to hydrolyze the diisobutyl dithiophosphoric acid to generate diisobutyl monothiophosphoric acid, and then adding a phase transfer catalyst into the diisobutyl dithiophosphoric acid to obtain the diisobutyl sodium monothiophosphoric acid. Hydrogen sulfide generated in the reaction process is carried by nitrogen and absorbed by alkali liquor, and toluene is concentrated and recovered after the reaction is finished; then carrying out neutralization reaction on the obtained diisobutyl monothiophosphoric acid and a sodium hydroxide solution under a low-temperature condition, and filtering to remove impurities after the reaction is finished, so as to obtain a sodium diisobutyl monothiophosphate solution. According to the method disclosed by the invention, the hydrolysis and neutralization conditions can be optimally controlled through parameters such as dropwise adding time, temperature, molar ratio and the like, so that the reaction selectivity and the purity of a finished product are improved. According to YS / T 675-2008 standard determination, the main component content of the diisobutyl sodium monothiophosphate obtained by the method can be stably controlled at 49%-53%, and the method is suitable for industrial continuous production.

This invention relates to the field of mineral processing technology, and discloses a copper sulfide ore beneficiation reagent, its preparation method, and its application. The reagent is composed of 50-55 parts by weight of sodium dibutyl monothiophosphate, 20-25 parts by weight of sodium isobutyl xanthate, 10-15 parts by weight of modified mercaptothiocyanate, and 5-10 parts by weight of fusel oil. The modified mercaptothiocyanate is obtained by chemically modifying the molecular structure of conventional mercaptothiocyanates by introducing hydrophobic alkyl groups and / or sulfur-containing functional groups. The fusel oil is a mixture of C4-C8 fatty alcohols. The preparation method includes: weighing the raw materials; mixing and dissolving sodium dibutyl monothiophosphate and sodium isobutyl xanthate to obtain a mixed solution; adding the modified mercaptothiocyanate and stirring to obtain a reaction solution; adding the fusel oil, stirring, separating the liquid to obtain an oily liquid, and filtering to obtain the reagent. The mass ratio of the oily liquid to the mixed solution after separation is (20-80):(80-20), and the filtration time is 30-60 min. The reagent of this invention can be used in the flotation of copper sulfide ore, with a dosage of 60-120 g / t.

It relates to a product for obtaining cleaning products from vegetable oils, which comprises the following components in % by weight with respect to the total weight of the product: Sodium triphosphate in an amount comprised in a range from 4 to 6%; alkylbenzene sulfonic acid C10-C13 in an amount ranging from 4 to 12%; sodium stearate in an amount ranging from 0.2 to 0.4%; rheology modifier in an amount ranging from 0.4 to 2%; a perfume in an amount ranging from 0.5 to 4%; and the amount of water required to reach 100% where the pH of the product is comprised in a range from 6 to 9.5; or alternatively, the product for obtaining cleaning products is a solid with the same components and proportions between them as the liquid formulation except that it does not contain water. It also relates to cleaning products obtained from these formulations as well as to their preparation processes.

The invention discloses a method for repairing cadmium-polluted soil based on combination of chitosan nanoparticles and nightshade, which comprises the following steps: S1, collecting a soil sample, and testing whether the concentration of cadmium in the soil sample reaches a preset concentration or not for later use; s2, dissolving chitosan in an acetic acid solution, adjusting the pH value, and stirring the solution overnight until the chitosan is completely dissolved and the solution is clear; adding sodium tripolyphosphate, filtering the mixed solution to obtain a suspension, centrifuging, washing, and drying by a freeze dryer to obtain chitosan nanoparticles; s3, accelerating germination of the black nightshade seeds, and transplanting seedlings into the cadmium-containing soil in the step S1 when the seedlings grow to 2-3 cm; after the plants grow for two weeks, spraying chitosan nanoparticle solutions with different concentrations on leaves. According to the method, through the combined effect of the chitosan nanoparticles and the black nightshade, the result shows that the activity of cadmium in soil can be improved through the nano chitosan with the proper concentration, and the Cd extraction and enrichment capacity of the black nightshade is improved.

The invention discloses sodium thiophosphate, a preparation method thereof and application of the sodium thiophosphate in modified natural ester insulating oil, the sodium thiophosphate (Na3PO3S) synthesized by free radical coupling is used as an inorganic compound containing sulfur and phosphorus, sulfur and phosphorus groups on the sodium thiophosphate (Na3PO3S) and ester molecules can form a hydrogen bond or a coordination effect, and the sodium thiophosphate (Na3PO3S) can be used for preparing the modified natural ester insulating oil. Polar group distribution and intermolecular force of the natural ester insulating oil are improved through interface modification, or free radicals in the natural ester insulating oil are inhibited from reacting, so that the electrical performance and oxidation resistance of the natural ester insulating oil are improved, the service life of the natural ester insulating oil is prolonged, and a guarantee is provided for safe operation of a transformer. And the operation process of the sodium thiophosphate subjected to plasma post-treatment is simple and convenient, the synthesized product and by-product have low toxicity, and the method accords with the current green chemistry trend, is a modification method worthy of popularization and application, and provides a new idea and feasibility for synthesis of the sodium thiophosphate and modification of the natural ester insulating oil.

The invention comprises a finishing material formed in a plate shape and composed of at least one of a non-combustible stone panel or ceramic tile; a non-combustible insulation material composed of at least one of mineral wool or glass wool that is adhered to the lower part of the finishing material; and a non-combustible adhesive material that adheres the non-combustible insulation material to the lower part of the finishing material and is composed of 10 to 50 wt% bisphenol A diglycidyl ether, 3 to 8 wt% fluorine silicate, 1 to 10 wt% sodium fluoride silicate, 5 to 20 wt% refractory powder, 10 to 45 wt% calcium carbonate, 3 to 10 wt% titanium oxide, 3 to 10 wt% sodium triphosphate, 0.5 to 4 wt% aluminate coupling agent, 0.1 to 2 wt% dispersant, and 0.1 to 2 wt% leveling agent. Therefore, we provide a non-combustible exterior material that enhances the marketability and usability of building finishing materials by ensuring functionality that satisfies non-combustible or flame-retardant regulations while making it easy to add design diversity and increasing decorative value.