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49results about How to "Improve physical and chemical indicators" patented technology

Efficient green micro-crystallized mineral-biological compound fertilizer and production method thereof

The invention discloses an efficient green micro-crystallized mineral-biological compound fertilizer and a production method thereof. The compound fertilizer comprises the following components in parts by mass: 7-9 parts of N, 7-9 parts of P2O5, 7-9 parts of K2O, 25-30 parts of organic matters, 8-12 parts of humic acid, 3-6 parts of amino acid and 15-20 parts of chemical elements such as calcium,silicon, magnesium, selenium, molybdenum, boron and zinc, as well as not less than 0.02 billion/kg of available active bacteria. The efficient green micro-crystallized mineral-biological compound fertilizer has the beneficial effects of being capable of adapting to acidic-alkaline soil and neutral soil in various regions, improving the soil, enhancing the adsorption ability of the soil on nutrients, preventing nitrogen and potassium from being washed away by water due to a large amount of rainfall, reducing formation of insoluble phosphate and improving fertility of the soil; and in addition,nitrogen, phosphorus and potassium in the original soil can be activated to be absorbed by crops by virtue of microelements contained in the fertilizer, and the supply capability of the deep soil nutrients can be enhanced, thus the physiochemical indexes and biological environment of the soil can be improved in case of long-term application, hardened soil can be reduced, and the quality of crops can be obviously improved.
Owner:山东清大生态科技有限公司

Wall-flow honeycomb ceramic filter

ActiveCN101612500ALarge apertureEffective in filtering black smokeExhaust apparatusSilencing apparatusMicrowaveHoneycomb
The invention relates to a wall-flow honeycomb ceramic filter, which combines a cordierite honeycomb ceramics material and a special pore-forming agent. Raw materials of a blank of the filter comprise the following components, mass portions and grain diameters: kaolin is 35 to 45 portions, and the average grain diameter is less than or equal to 5 mu m; talcum is 20 to 30 portions, and the average grain diameter is 15 mu m; alpha-alumina is 4 to 9 portions, and the average grain diameter is less than or equal to 2 mu m; the pore-forming agent consisting of carbon granules or/and organic polymeric particles is 5 to 15 portions, and the average grain diameter is 10 to 20 mu m; and a bonding agent is 3 to 7 portions. A method for preparing the wall-flow honeycomb ceramic filter comprises the following steps: evenly mixing the components and 20 to 30 portions of water to prepare a blank; completing the conversion from the blank to plastic mud after performing vacuum degassing for 2 to 3 times; staling the plastic mud for 24+/-8 hours, and squeezing out the plastic mud through a mould of an extruder, wherein the density of mould holes is 100 to 250 holes per square inch; cutting the mud after extrusion into a wet blank with certain length; and performing microwave drying on the wet blank to obtain a dry blank, performing cross hole blocking and drying on the dry blank, and finally performing a sintering working procedure on the dry blank to manufacture a product.
Owner:NANJING KERUI SPECIAL CERAMICS

Impurity removing process for enhancing quality of silicon carbide fine micro powder

The invention discloses an impurity removing process for enhancing quality of silicon carbide fine micro powder and relates to an impurity removing method of silicon carbide micro powder. The process comprises the following steps: firstly, adding the silicon carbide fine micro powder into deionized water to prepare 30% slurry, and adding a foaming agent and polyoxyethylene which account for 0.01% of the total weight of the slurry; then, feeding the slurry to a flotation column to float and decarbonize; then, feeding the floated slurry to a wet magnetic separator for magnetic separation to remove iron; repeating the above operations till foam in the floatation column changes from being deep to being light and is off-white and stopping flotation and magnetic separation process; then, diluting the concentration of the slurry discharged from the wet magnetic separator, and adding a surfactant; then, feeding to a cyclone grading system to remove particles which are less than 5.5 microns; and then dehydrating and drying to obtain high quality silicon carbide fine micro powder with Fe2O3 less than or equal to 0.4%, free carbon less than or equal to 0.3% and particle content less than or equal to 3.5%. The silicon carbide fine micro powder disclosed by the invention is stable in quality, high in cleanliness and simple in production process, and the treatment time is greatly shortened.
Owner:PINGDINGSHAN YICHENG NEW MATERIAL

Preparation method for double-sided light aluminum foil

InactiveCN109759474AIncrease pass reduction rateGuarantee the shape qualityReduction rateRoom temperature
The invention discloses a preparation method for a double-sided light aluminum foil. The preparation method comprises the following steps that (1) cast-rolling is performed, wherein an aluminum alloymaterial and an aluminum ingot are put into a melting furnace for melting, after standing is performed through a standing furnace, a molten liquid is filtered, and a cast-rolled plate is obtained after multiple times of cast-rolling is performed by a cast-rolling machine; (2) cold rolling is performed, wherein the cast-rolled plate is cooled to room temperature, multiple times of cold pressing isperformed by a cold press, and then multiple times of annealing treatment is performed to obtain an aluminum foil stock; (3) an aluminum foil working procedure is performed, wherein the aluminum foilstock undergoes five passes of rolling working procedures to obtain a finished aluminum foil, the first pass of the rolling working procedure to the third time of the rolling working procedure are rough rolling, the thickness of the obtained aluminum foil is 0.03 mm, the fourth pass of the rolling working procedure is intermediate rolling, the thickness of the obtained aluminum foil is 0.014 mm, the fifth pass of rolling working procedure is finish rolling, and the aluminum foil with the thickness of 0.009 mm is obtained. According to the method, the distribution of reduction pass of an aluminum foil rolling working procedure is adjusted again, the pass reduction rate of the third pass is properly improved, the pass reduction rate of the fifth pass, namely, the pass reduction rate of the final pass is reduced, so that the reduction process speed is reduced, and the thickness of the product is reduced easier.
Owner:HANGZHOU FIVE STAR ALUMINUM

Rubber-metal bonding enhancer for steel wire radial tyre and preparation method thereof

The invention belongs to the field of rubber chemicals and discloses a rubber-metal bonding enhancer for a steel wire radial tyre. The enhancer is prepared from four kinds of metal salts of cobalt, nickel, copper and zinc; and the proportion of the metal salts by metal molar mass: cobalt: nickel: copper: zinc is (50% to 70%): (20% to 40%): (6% to 10%): (2% to 4%). The preparation method of the bonding enhancer comprises the steps of: using the four kinds of metal salts as starting materials to sequentially prepare alkali carbonate metal composite salt by a temperature gradient method and a concentration step method, prepare an intermediate by a continuous dehydration method and prepare low cobalt boroacylate metal composite salt by a boroacylate replacement reaction to obtain the bonding enhancer. In the invention, the proportion of the cobalt is regulated to 50% to 70% from 100% in a traditional technology; and the consumption of precious metal cobalt is reduced; the cost is reduced by 10% to 20%. The physical and chemical indexes and utilization property of the product of the invention are equivalent to those of a boroacylate cobalt product; and the drawing force and retention rate of an aged product are better than those of the boroacylate cobalt product.
Owner:杭州新速工业助剂有限公司

Soybean paste brewing process

The invention discloses a soybean paste brewing process which comprises the following steps: (1) dividing soybeans into two parts, namely soybeans 1 and soybeans 2; (2) cooking soybeans 1, crushing, cooling, inoculating yeast seed for starter propagation, adding salt and a small amount of water, and performing sun-curing fermentation to obtain a semi-finished product of soy sauce mash 1; (3) steaming and cooking soybeans 2, cooling, adding flour, uniformly mixing, inoculating yeast seed for starter propagation, adding saline water, and carrying out sun-curing fermentation to obtain a semi-finished product of soy sauce mash 2; (4) uniformly mixing the semi-finished soy sauce mash 1 and the semi-finished soy sauce mash 2 with saline water, and fermenting to obtain soy sauce mash 3; and (5) adding a flavoring agent into the soy sauce mash 3 for blending, boiling for 10-40 minutes, sterilizing, cooling and filling to obtain the soybean paste. According to the brewing process, the quality, enzyme activity and decomposition degree of finished koji are improved, the fermentation time is short, and the utilization rate of raw materials is high; compared with the traditional technology, the physicochemical indexes of the obtained soybean paste blank are obviously improved, and the soybean paste is red and strong in color, rich in fragrance and prominent in delicate flavor and mellow taste.
Owner:FOSHAN HAITIAN GAOMING FLAVORING & FOOD +1

Preparation method of novel fireproof clay brick

The invention discloses a preparation method of a novel fireproof clay brick, wherein the preparation method includes the steps: pretreating a flint clay raw material, grading and screening into coarse particles and fine particles; putting the coarse particles in a calcination shaft kiln and calcining; mixing the flint clay fine particles with soft clay evenly, and co-grinding into mixed clay finepowder; carrying out crushing treatment of the calcined flint clay, and grading to obtain flint clay clinker particles and flint clay clinker fine powder; and carrying out mud mixing of the flint clay clinker particles, the flint clay clinker fine power and the mixed clay fine powder, and carrying out forming, drying and sintering processes to obtain the finished product. The preparation method has the beneficial effects that the preparation method of the fireproof brick adopts mixed clay fine powder with the flint clay clinker particles and the fine powder for preparation, significantly improves the utilization ratio of the raw materials, realizes waste utilization and reduces the production cost. The quality and physical and chemical indexes of the prepared finished fireproof brick arenot reduced but greatly improved. The high temperature indexes are significantly improved, and the service life is significantly enhanced.
Owner:山东嘉岳新材料有限公司

Compound enzyme preparation for oil extraction and oil extraction method

The invention discloses a compound enzyme preparation for oil extraction. The compound enzyme preparation comprises 1 to 3 parts of neutral protease, 1 to 3 parts of alkaline protease, 0.1 to 0.3 partof flavor enzyme, 0.1 to 0.3 part of collagenase and 1 to 3 parts of a carrier in parts by weight. Furthermore, the invention discloses a technological method of the compound enzyme preparation for the oil extraction. The method comprises the following steps: controlling pH to be 7.5 to 8.5, the enzymolysis temperature to be 52 to 65 DEG C, the ratio of materials to liquid to be (2:1) to (4:1), the enzymolysis time to be 2 to 4 hours, and the additive amount to be 0 .1% to 0.5%, thereby being capable of achieving optimum extraction process conditions. The invention has the following technicaleffects: 1) using an enzymolysis method to achieve the purpose of large-scale extraction of oil in slaughtered scraps; 2) using the compound enzyme preparation to extract the oil, thereby being capable of improving the oil extraction rate and oil extraction quality of the slaughtered scraps; 3) precipitating and spray-drying extracted enzymatic hydrolysate and then preparing into high-protein feed, thereby realizing resource utilization and further improving culture benefits.
Owner:龚俊勇 +1

Mung bean protein peptide preparation method

The invention discloses a mung bean protein peptide preparation method, which belongs to the technical field of protein peptide processing, and comprises the following steps: (1) conditioning protein emulsion; (2) conducting primary hydrolysis; (3) conducting protease hydrolysis; (4) conducting centrifugal separation; (5) carrying out high-speed separation on a liquid phase, and carrying out secondary hydrolysis on a solid phase; (6) carrying out protease inactivation; (7) carrying out centrifugal separation; (8) carrying out high-speed separation on the liquid phase, and carrying out third decomposition on the solid phase; (9) carrying out protease inactivation; (10) performing centrifugal separation, removing by-products from the solid phase, and performing high-speed separation on the liquid phase; (11) performing membrane separation; (12) performing membrane concentration; and (13) drying to obtain a mung bean protein peptide finished product. According to the method, the peptide conversion rate of the mung bean protein is increased through fractional hydrolysis, ultrafiltration membrane separation and nanofiltration membrane concentration, the peptide content of a product is stabilized, the proportion of small molecule peptides less than 500d is increased, the peptide activity is improved, and the evaporation energy consumption is reduced.
Owner:刘尚顺

Yeast coating method

The invention discloses a yeast coating method. The method is characterized in that yeast bases with the humidity being not lower than 38.5% are placed into a yeast room with the humidity being not lower than 70%; the yeast bases are horizontally placed on a yeast rack of the yeast room, yeast powder is spread for inoculation, and wet straw grids are used to cover the yeast bases in an enclosed manner; water is sprinkled for moist keeping and cooling, the temperature of the yeast bases slowly rises, water is sprinkled to the periphery of the yeast rack and door and window openness is controlled at the same time to allow the humidity of the yeast room to be not lower than 80% when the temperature of the yeast bases rises to 28 DEG C, and the temperature of the yeast bases is kept between 28-32 DEG C for at least 6 hours to complete yeast coating. The yeast coating method has the advantages that the method is convenient and effective and simple to operate, a coat layer can effectively forms on the surfaces of the yeast bases, contaminating microorganisms cannot easily invade into the yeast bases during the maturing process of the yeast bases, yeast fragrance and purity are increased, increasing of various physical and chemical indexes of mature yeast is promoted, and yeast quality and wine base quality are increased.
Owner:ANHUI GUJING DISTILLERY

Fertilizer with high contents of phosphorus and potassium and preparation method thereof

The invention relates to a fertilizer with high contents of phosphorus and potassium. The fertilizer is prepared from a phosphorus-containing compound and a potassium-containing compound, wherein the content of phosphorus in the fertilizer is 40 to 60% in terms of phosphorus pentoxide, and the content of potassium in the fertilizer is 40 to 60% in terms of an oxidizing agent. According to the invention, a non-conventional formula is employed to prepare the nitrogen-free fertilizer with excellent effect and high contents of phosphorus and potassium; the fertilizer can effectively control the growth of crops in an early stage and promote seedling hardening, rooting and blossom of the crops; in the later stage of the growth of the crops, the fertilizer can better promote expanding and coloring of fruit and accumulation of mesome substances in fruit and promote generation of growth activity substances, so the utilization rates of macroelement, medium elements and trace elements in crops can be substantially increased, and yield increase of the crops is realized; and the fertilizer is especially applicable to plants which do not need nitrogen in the whole growing period but have higher demands for phosphorus and potassium.
Owner:王成
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