Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

1097results about How to "Wide range of raw materials" patented technology

Remediation agent for treating arsenic contaminated soil and usage of remediation agent

The invention discloses a remediation agent for treating arsenic contaminated soil and a usage of the remediation agent. The remediation agent comprises the following raw materials by mass: 5-30% of oxidant, 30-70% of iron-based compound and 10-60% of mineral material. The raw materials are respectively ground into materials with particle size not smaller than 200 meshes and are mixed uniformly according to the proportion. The usage of the remediation agent for treating the arsenic contaminated soil comprises the following steps that: the arsenic content and the leaching toxicity of the to-be-treated contaminated soil are detected; the remediation agent with different ratios according to the degree of contamination is paved on the surface of the to-be-treated soil; the soil is turned over and uniformly mixed to form the mixed soil; the water content in the mixed soil is kept not to be less than 25% by adding water; a moisturizing material is covered on the mixed soil; and the mixed soil is cured for at least 5 days in order to allow the remediation agent in the mixed soil to be reacted with unstable arsenic in the heavy metal contaminated soil; and the generated insoluble arsenate sediment is stabilized, so that the cured soil can meet the environment protection requirements.
Owner:YONKER ENVIRONMENTAL PROTECTION

Chinese medicinal herb additive for meat chickens and application

The invention discloses a Chinese medicinal herb additive for meat chickens and application. The Chinese medicinal herb additive comprises heterophylly falsestarwort root, nutgrass galingale rhizome, amur corktree bark, coptis root, medicated leaven, sanguisorba, hawthorn, Indian Buead, officinal magnolia bark, largehead atractylodes rhizome, tangerine peel, malt, indigowoad root, swordlike atractylodes rhizome, indigowoad leaf, cyrtomium fortune, chatoyancy and calamus; and mixture of the compositions is added with calcium bicarbonate, phytase, mulitivitamin for birds and lysine. The Chinese medicinal herb additive effectively promotes absorption of nutrient, can resist bacteria and virus, strengthen immunity of the meat chickens, effectively prevents bird flu, has obvious curative effect on diseases having respiratory tract symptoms as the major symptom, and has inhibiting function on familiar newcastle disease, colon bacillus, Pasteurella, enteritis, diarrhea, feather pecking, hair shedding, anus pecking, coccidiosis and the like. The additive cannot restrict the growth and disease resistance of the meat chickens, the meat quality of the meat chickens fed by the additive is obviously better than that of the meat chickens fed by the prior feed additive, the average daily gain of the meat chickens is improved by 23 to 28 percent than that of the meat chickens fed by the prior feed additive, the cultivation cycle is obviously shortened, and no harmful substance is deposited.
Owner:CHONGQING KAIZHOU JIUDING ANIMAL HUSBANDRY SCI & TECH DEV

Method for producing phosphorus building gypsum by phosphorous gypsum

The invention discloses a method for producing phosphorus building gypsum by phosphorous gypsum. The method is characterized by comprising the following steps of drying industrial residual phosphorous gypsum by a pneumatic drier to a state that water content is smaller than 5%; sending the dried phosphorous gypsum to a steam jet mill, grinding the industrial residual phosphorous gypsum by the steam jet mill and dewatering, collecting the grinded phosphorous gypsum by a dust collector and cooling the phosphorous gypsum to obtain the phosphorus building gypsum, wherein the power medium of the steam jet mill is superheated steam; a frequency of a powder concentrator is 10 Hz-40 Hz; the temperature of the superheated steam is 250 DEG C-300 DEG C; and a pressure of the superheated steam is 0.7 MPa-1.2 MPa. In the method, the industrial residual phosphorous gypsum is used as a raw material; the superheated steam generated by industrial waste heat is used as a power for the steam jet mill to prepare the phosphorus building gypsum. The method has the characteristics of wide available raw materials, simple production equipment, high yield, low cost, large-scale production, etc. The prepared phosphorus building gypsum can be used for preparing building functional mortar and producing gypsum boards and building blocks, and has strong practicality.
Owner:SOUTHWEAT UNIV OF SCI & TECH

Monoatomic catalyst for preparation of low-carbon olefin by means of dehydrogenation of lower low-carbon hydrocarbons, and catalytic method

The invention relates to a monoatomic catalyst for preparation of low-carbon olefin by means of dehydrogenation of low-carbon hydrocarbons, and a catalytic method. The catalyst is obtained by supporting metal active components, dispersed in an isolated monoatomic form, on a carrier, or supporting the metal active components on the carrier in a form in which single atoms and metal nanoparticles coexist. The metals in the metal active components are preferably selected from at least one of chromium, manganese, iron, cobalt, nickel, copper, gallium, molybdenum, ruthenium, rhodium, palladium, silver, iridium, platinum and lead; the carrier is prepared from one or more of a carbon-nitrogen material, a carbon material or oxides. The catalyst provided by the invention can realize the reduction ofmetal consumption and has very good stability; the catalyst can significantly reduce the reaction temperature while guaranteeing high catalytic performance, reduces the energy consumption, effectively avoids the formation of carbon deposit, and increases the production efficiency. The catalyst can catalyze a dehydrogenation reaction of the multiple low-carbon hydrocarbons such as isobutane, n-butane, butene, propane and ethane so as to produce corresponding low-carbon olefin products, thus being wide in application range; the monoatomic catalyst is multiple in preparation methods, wide in rawmaterials, low in cost and suitable for mass industrial production.
Owner:北京博思福催化科技有限公司

Composite flame-retardant expandable polystyrene particles and preparation technology thereof

Disclosed are composite flame-retardant expandable polystyrene particles and a preparation technology thereof. The particles are prepared from the following components of: by weight, 100 parts of styrene monomer, 100-150 parts of water, 1-10 parts of expandable graphite, 1-12 parts of a phosphorus compound, 0.1-0.5 part of white oil, 0.1-0.5 part of polyethylene wax, 0.05-0.2 part of dicumyl peroxide, 0.2-0.8 part of benzoyl peroxide, 0.1-0.4 part of polyvinyl alcohol, 1.1-2.1 parts of tricalcium phosphate and 8-12 parts of pentane. By the addition of a composite fire retardant of expandable graphite and the phosphorus compound before polymerization of styrene, adverse influence of the fire retardant on performance of the product is reduced; expandable graphite and the phosphorus compound are halogen-free fire retardants, the particles have good environmental protection performance; by the addition of white oil, the particles have plasticising and internal lubricant functions as well as good stability and low volatility, and fluidity during the forming of polystyrene particles can be greatly improved; polyvinyl alcohol and tricalcium phosphate are dispersion stabilizers and by timely adding a proper amount of the dispersion stabilizers, the product appearance can be improved, the production efficiency can be raised, and cost can be reduced; and the addition of all the components guarantees the performance of the product.
Owner:BEIJING HUACHEN DECHUANG CHEM TECH

Scented straw cat litter made by wheat straw and method thereof

ActiveCN104969866AWill not affect healthDoes not affect fishy tasteAnimal housingBiotechnologyCause blockage
The present invention discloses a scented straw cat litter made by wheat straws and a method thereof. The scented cat litter is manufactured by weight percentage by the following materials of 40-60 parts of wheat straws with a smashing mesh number being 40-70, 40-60 parts of wheat shorts, 1-3 parts of Sesbania gelatine powder, 0.5-2 parts of salt, 0.1-0.5 parts of a bio-enzyme preparation, and 10-25 parts of water. The method comprises mixing the bio-enzyme preparation, the salt and the water with stirring; mixing and stirring the wheat straw powder, the wheat shorts and the Sesbania gelatine powder to be uniform; comprehensively mixing the above raw materials with stirring; sending the mixed materials by a feed screw to a roller couple extrusion pelleting machine for roll extrusion to form pellets; transmitting the formed material pellets to a crushing and screening all-in-one machine for screening; and drying, cooling and packaging the screened pellets at normal temperature. The cat litter provided by the present invention has a strong water absorption capability and deodorization capability, can be flushed into the sewer without causing blockage, is convenient to clean, can be used as a fertilizer for grass and flowers, and is saving in using amount, high in cost performance, small in dust in a production process, and low in production cost. Products of different shapes can be produced by replacing pressing rollers of different patterns, thereby achieving multiple uses in one machine.
Owner:王洪恩

Granular saline-alkali soil conditioner and production method thereof

The invention relates to a granular saline-alkali soil conditioner. The conditioner is prepared from the following raw materials in parts by weight: 70-90 parts of phosphogypsum, 5-15 parts of humic acid and 5-15 parts of filler. The invention also relates to a production method of the saline-alkali soil conditioner. The production method comprises the following steps: preparing the filler, preparing a spray, palletizing, baking, sieving and the like. The granular saline-alkali soil conditioner disclosed by the invention plays a good saline-alkali soil improvement role by combined action of adjusting a plurality of aspects such as the soil pH level and ion components, enhancing the salt resistance ability of crops, activating nutrient elements in soil and the like. The product disclosed by the invention is granular, convenient to use, and convenient for mechanical fertilization. The production method of the product disclosed by the invention has the characteristics that production equipment is low in demands, and just conventional equipment needs to be adopted, special equipment does not need to be added, and the method is wide in raw material source, low in production cost, convenient to transport and fertilize, and the like.
Owner:INST OF AGRI RESOURCES & REGIONAL PLANNING CHINESE ACADEMY OF AGRI SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products