126results about How to "Moderate dosage" patented technology

A method for increasing hydrogen peroxidase stability relates to a biological zyme used in clean production in textile industry. This invention takes the thermoascus aurantiacus IFO9862 as the initial strain to be prepared to get the hydrogen peroxidase after liquid deep fermentation to be ultrafitered, concentrated and added by certain stabilizers, NaCl, or glue or glycerol kept for 60days under 40deg.C its alive reservation is over 90%.

The invention relates to a preparation method of N,N'-m-phenylenebismaleimide (HA-8). The preparation method is mainly technically characterized by firstly adding m-phenylenediamine in a reaction kettle equipped with a stirrer and a thermometer, then adding a solvent, stirring for fully dissolving the m-phenylenediamine, further adding maleic anhydride, keeping the temperature for 2 hours after completion, then adding acetic anhydride, completing the reaction, further evaporating, recovering the solvent of acetone, finally carrying out centrifugal washing for obtaining a crude product, drying, smashing and obtaining a finished product. The yield is calculated to be 91.5% by taking the m-phenylenediamine as a standard substance. The product is mainly used in natural rubber and various types of synthetic rubber, and can prevent reversion by being matched with sulfur, improve the heat resistance and the anti-aging property, reduce the heat production of the rubber and improve the bonding property between the rubber and metal fabric.

The invention relates to a method for preparing potassium fluoride with white carbon black as co-product by using fluorosilicic acid as a raw material. The method comprises the following steps: S1 dissolving potassium chloride and filtering to obtain potassium chloride solution; S2, injecting the potassium chloride solution obtained by S1 into the fluorosilicic acid solution for reaction, and after the reaction is completed, stirring, filtering and washing to obtain the potassium fluorosilicate filter cake; S3, adding water in proportion to the potassium fluosilicate filter cake obtained in the step S2 and stirring into a paste to obtain potassium fluosilicate slurry, and then injecting potassium hydroxide solution into the slurry to carry out reaction; S4, after the reaction is completed,filtering the mixed slurry obtained in the step S3 to obtain a silica filter cake and a filtrate containing potassium fluoride. The invention uses fluorosilicic acid as a raw material to prepare potassium fluoride with white carbon black as co-product, and the by-product potassium chloride and by-product silicofluoric acid from hydrofluoric acid industry are used as main raw materials to preparehigh purity potassium fluoride with high added value white carbon black as co-product. Compared with the raw materials in the neutralization method in which potassium hydroxide and hydrofluoric acid are reacted are used for the longest time at present, the production cost of the method is low.

The invention discloses a special environment-friendly stabilizer for U-PVC calendered sheet, which is prepared from the following components in weight ratio: 260-300 kg of magnesium-aluminum-zinc composition, 50-150 kg of zinc stearate, and 1010-15-15 kg of antioxidant. 20kg, calcium acetylacetonate 40~68kg, tris(2-hydroxyethyl) isocyanurate 80~130kg, oxidized polyethylene wax 50~250kg, polyethylene wax 30~100kg. The stabilizer of the invention is suitable for continuous calendering and extrusion production of U-PVC sheet, and has moderate dosage, low cost, good production process stabilization effect, good rolling effect, smooth processing, smooth sheet surface, good plasticization, and satisfactory mechanical properties. The requirements of the national standard also have the advantages of non-toxicity and high environmental protection performance; the U-PVC sheet prepared by the stabilizer of the present invention has stable chemical properties, no rust, good impact resistance, and good transparency. Good insulation and low thermal conductivity; good formability and colorability, and low processing cost; the PVC sheet produced conforms to GB/T15267 "PVC Rigid Sheets and Films for Food Packaging" and conforms to YBB00212005 Polyethylene Vinyl chloride solid medicinal tablet.

The invention relates to a preparation method of dibutoxy methane. The preparation method is characterized by comprising the following step of: undergoing a normal-pressure gap type aldol condensation reaction on formaldehyde and n-butyl alcohol under the action of a solid acid catalyst by taking n-butyl alcohol as an azeotropic dehydrating agent in a reactor with a stirrer, a condenser and a water knockout vessel to obtain the dibutoxy methane, wherein the molar ratio of the formaldehyde to the n-butyl alcohol is 1:2-1:4, the concentration of a formaldehyde solution is more than or equal to 25 percent by mass, the reaction temperature is 60-140 DEG C, the reaction time is 0.5-8 hours, the solid catalyst is an HZSM-5 molecular sieve or an active carbon immobilized sulfuric acid catalyst, the active ingredient of the active carbon immobilized sulfuric acid catalyst is sulfuric acid, the immobilized quantity of acid is 15-25 percent by mass, and the using amount of the solid acid catalyst is 0.1-8 percent of the total mass of reactants. The method has the advantages of easiness in separation of the solid acid catalyst from a product, small corrosion to equipment and catalyst recyclability, and is a novel, efficient and environmentally-friendly production method.

The invention discloses a modifier for regeneration processing of mixed waste plastic tube materials. The modifier comprises the following components by weight: 1-6 parts of maleic anhydride, 2-6 parts of chlorinated polyethylene, 3-8 parts of an ethylene-vinyl acetate copolymer, 4-9 parts of a styrene-butadiene-styrene block copolymer and 5-9 parts of styrene. A preparation technology of the modifier is as below: adding raw materials into a high speed feed mixer for uniform mixing, discharging and cooling for standby. A usage method of the modifier for regeneration processing of mixed waste plastic tube materials comprises the following steps: (1) classifying to obtain waste plastic tube materials; (2) crushing, washing, dehydrating, drying, dehumidifying and detecting the mixed waste plastic tube materials; (3) mixing and heating the modifier with the mixed waste plastic raw materials, carrying out a grafting reaction, and cooling for standby; and (4) granulating. The invention has the advantages of simple process, convenient operation, low cost and no pollution, and can be widely used in the field of regeneration processing of waste plastic tubes.

The invention provides a beef jerky tendering process. The beef jerky tendering process comprises the following steps: (1) selection and processing of raw material beef; (2) tenderization and pickling; (3) pre-boiling; (4) secondary boiling; (5) drying. According to the process conditions provided by the invention, the consumption of enzyme is moderate, the tenderization time, the pickling time and the secondary boiling time are short, and the baking time is moderate; and the beef jerky tendering process is suitable for industrial production, the production efficiency is improved, the production cost is lowered, and the obtained beef jerky is brownish red and high in yield and has crisp and tender taste and special flavor.

The invention discloses a modifier for regenerating and processing hybrid waste plastic injection part materials, wherein the modifier contains the following components by weight: 1-7 parts of maleic anhydride, 2-7 parts of chlorinated polyethylene, 3-9 parts of ethane-vinyl acetate copolymer, 4-10 parts of styrene-butadiene-styrene segmented copolymer, and 5-10 parts of styrene; and a preparation process of the modifier comprises: uniformly mixing the raw materials of the modifier into a high speed mixer, discharging and cooling for standby application. A usage method of the modifier for regenerating and processing hybrid waste plastic injection part materials has the following steps of: (1) classifying the obtained hybrid waste plastic injection part materials; (2) crushing, washing, dehydrating, drying, dehumidifying and detecting the hybrid waste plastic injection part materials; (3) uniformly mixing the modifier for regenerating and processing hybrid waste plastic injection part materials and the hybrid waste material raw materials, heating to generate grafting reaction, and cooling for standby application; and (4) granulating. The modifier has characteristics of simple technology, convenient operation, low cost and no pollution, and can be widely used in a generating and processing field of waste plastic injection parts.

The invention discloses a synergist for a composite/compound fertilizer, as well as a preparation method and a using method thereof. The synergist comprises N-(N-butyl)thiophosphoric triamide, 1-methylaminoformyl-3-methylpyrazole and ammonium humate. According to the synergist, the polar characteristics of molecular structures of the three components are sufficiently utilized to prepare powder with specific fineness, and the powder can effectively coat the surface of composite fertilizer or compound fertilizer. When the synergist is used, adsorption coating on the particle surface can be completed by means of simple and mechanical mixing. The synergist can be used for effectively prolonging the fertilizer efficiency, improving the utilization, can be sufficiently mixed with fertilizer particles without consuming or causing adhesion of fertilizer particles, and is simple to operate and beneficial to popularization.

The invention relates to a novel parasite-expelling premix for pigs as well as a preparation method and an application of the premix. The premix is prepared from components in parts by weight as follows: 0.1-1 part of ivermectin, 3-8 parts of albendazole, 0.1-1 part of ethyl acetate and 55-95 parts of a traditional Chinese medicine carrier, wherein the traditional Chinese medicine carrier is prepared from components in parts by weight as follows: 5-15 parts of cyrtomium rhizomes, 30-50 parts of pumpkin seeds and 20-30 parts of maifanite. During preparation, the traditional Chinese medicine carrier components are weighed, subjected to superfine grinding, filtered with a sieve of 150-200 meshes and evenly mixed, and a material A is prepared; ivermectin, albendazole and ethyl acetate are weighed and fully and evenly mixed with 50wt%-60wt% of the material A, and a material B is prepared; the rest material A is added to the material B, the materials are evenly mixed, and the premix is prepared. During usage, the premix is mixed with feed to feed the pigs. Compared with the prior art, the premix mainly treats parasitic diseases of the pigs, has the significant curative effect, and is non-toxic, free of drug residues, capable of efficiently and thoroughly expelling and killing internal and external parasites and applicable to pigs at various stages and different day ages.

The invention discloses a road water stabilizing material which is prepared from steel slag, ardealite, gravel and cement and is divided into a medium-grained soil water stabilizing material and a fine-grained soil water stabilizing material, the particle size of the fine-grained soil water stabilizing material does not exceed 4.65 mm, and the medium-grained soil water stabilizing material contains the gravel and the steel slag with the particle size ranging from 4.65 mm to 20.0 mm. The road water stabilizing material prepared from the steel slag, the phosphogypsum, the water and the gravel has the advantages of simple manufacturing process, short maintenance period, high early strength, wide material source, low price and the like, and has better economic practicability. The phosphogypsum and the steel slag can be co-processed, the phosphogypsum accounts for 6-9% of the total weight of the dry material of the water stabilizing material, the steel slag accounts for 50% of the total weight of the dry material of the water stabilizing material, and the technology can realize large-amount utilization of the two solid wastes. The phosphogypsum is moderate in mixing amount, and is not greatly adhered to the surface of the aggregate to hinder the adhesion of C-S-H and the aggregate. The steel slag, the gravel and the ardealite are separately sealed, so that the phosphogypsum adhered to the surface of the gravel can be effectively reduced, and the overall strength development of the water stabilizing material is facilitated.

The present invention discloses a nutritional milk tablet suitable for consumptions of populations with high blood lipids, high blood pressure and high blood sugar. The nutritional milk tablet is prepared from the following raw materials in parts by weight: 1.5-2.5 parts of cooked mung bean powder, 1.5-2.5 parts of cooked bitter buckwheat flour, 2-4 parts of cooked oat flour, 20-30 parts of milk powder and 50-60 parts of base material powder or condensed milk powder. The nutritional milk tablet is balanced in nutrients, pure in taste, convenient to eat, free of preservatives, free of trans-fatty acids, and suitable for the consumptions of the populations with high blood lipids, high blood pressure and high blood sugar.

The invention discloses a preparation method of saffron extract drop pills which comprises the following steps, melting safflower extract, water and base material polyethylene glycol (PEG), dropping into cooling material, removing cooling material on the surface of the drop pills, finally drying to obtain the end product.

The invention discloses an automatic detergent feeding device which comprises a liquid storage cavity, detergent is stored in the liquid storage cavity, the liquid storage cavity is communicated witha feeding pipe, a pump body is arranged on the feeding pipe, and the pump body can suck the detergent in the liquid storage cavity through the feeding pipe. A throwing opening is formed in the throwing pipe, and the detergent in the throwing pipe can be discharged through the throwing opening; an air pressure balance assembly is arranged on the liquid storage cavity, air can enter the liquid storage cavity through the air pressure balance assembly, and vacuum is prevented from being formed in the liquid storage cavity; the invention further discloses the dish washing machine. According to theautomatic detergent feeding device and the dish-washing machine, the detergent can be automatically added in the working process of the dish-washing machine, operation is easy and intelligent, the burden of a user is relieved, the dosage of the detergent is proper, the cleaning effect of tableware can be guaranteed, the detergent and water are saved, and environmental protection and resource saving are facilitated.