280results about How to "High quality raw material" patented technology

The invention provides a method for extracting tungsten from scheelite and producing high-quality calcined gypsum, comprising the following steps: adding a mixed acid of phosphoric acid and sulphuric acid to decompose scheelite; and after decomposition, adding hydrated gypsum seed crystals to finish the dewatering conversion process of dihydrate gypsum to obtain hydrated gypsum with good properties. The invention has the following advantages: the efficient atmospheric pressure leaching of scheelite is realized, the resource and energy consumption is saved, and the decomposition rate of scheelite can reach over 98%; the serious problems of Cl<-> corrosion and HCl volatilization in the traditional acid decomposition process can be overcome; the recycling of phosphoric acid is basically realized, and the leaching cost and the wastewater discharge are greatly reduced; the leaching device is simple, the operation is convenient and industrialization is easy to realize; the obtained byproduct gypsum has pure quality and can be used to produce gypsum boards, and can be used in retarder, plaster and the like produced by using cement; and due to the recrystallization process, the P2O5 content in gypsum is further reduced to below 0.5%.

The invention relates to a method for continuously producing large-particle spherical cobalt carbonate. The method comprises the following steps: manufacturing a turbid liquid containing small-particle-size cobalt carbonate seed crystal and manufacturing a turbid liquid containing large-particle spherical cobalt carbonate, stirring the turbid liquid containing the small-particle-size cobalt carbonate seed crystal and the turbid liquid containing large-particle-size cobalt carbonate to form a mixed liquid, carrying out solid-liquid separation, washing and filter pressing to obtain a filter cake as a large-particle cobalt carbonate filter cake, drying the filter cake, and repeatedly operating to obtain the large-particle cobalt carbonate powder. According to the method disclosed by the invention, the small-particle-size cobalt carbonate seed crystal is adopted to control the particle size of the large-particle cobalt carbonate in reaction mother liquor, so that the degree of sphericity of cobalt carbonate produced by continuous production can be ensured to be high, the particle size can be stably controlled within the range of 15+/-0.5 microns, and the consistency and the stability of the particle size of the large-particle spherical cobalt carbonate through large-scale continuous production can be realized; the method is simple in process, easy to operate and low in cost, and can provide the high-quality raw material for producing high-end lithium cobalt oxide; the carbonate is used as a precipitant, so that the environment can be optimized; the production efficiency can be improved, and the wide application prospect can be achieved.

The invention relates to functional peanut small molecule mixed polypeptide, a preparation method and application thereof, belonging to small molecule mixed polypeptide generated by peptide chain hydrolysis.The invention is characterized in that the functional peanut small molecule mixed polypeptide is prepared by adopting the following raw material components by weight part: 100 parts of defatted peanut cake, 6-10 parts of combined enzyme preparations, 6-12 parts of active carbon, 3-8 parts of diatomite, 3-8 parts of pearlite and 100 parts of water; and the following technical indexes are achieved: the molecular weight distribution range Dalton (D) is less than or equal to 3000, the content of the small molecule mixed polypeptide is more than or equal to 80wt, the total nitrogen is more than or equal to 12wt%, the water solubility is 90wt%, the water is less than or equal to 5wt%, and the fat is less than or equal to 0.5wt%.The invention provides a product of the functional peanut small molecule mixed polypeptide with high purity, good solubility, average molecular weight of less than 3000D and strong biological functionality and a preparation method of the functional peanut small molecule mixed polypeptide with short production cycle, high product yield and low preparation cost. The functional peanut small molecule mixed polypeptide is suitable for a raw material of medicines, health food and beverage and functional nutritious food.

The invention discloses a novel method for preparing wheat bran dietary fibers by taking wheat bran as a raw material. The wheat bran dietary fibers are dietary fibers enriched with araboxylan and the content is more than 16.08%. The novel method takes the wheat bran as the raw material and sequentially comprises the following process steps: pre-treating the raw material; rapidly extracting with an alkaline solution; carrying out ethanol precipitation; adding water to suspend again and blasting by steam; hydrolyzing compound protease; hydrolyzing compound amylase; carrying out secondary alcohol precipitation; and sieving. The dietary fiber product has high wheat bran dietary fiber yield and dietary fiber purity, and also has high content of araboxylan and high content of soluble dietary fibers; the product has good functional properties including water binding capacity, viscosity and the like, and has a plurality of physiological functions of relaxing bowel, controlling blood glucose, lowering blood fat, adjusting human immunity and preventing colon cancer and the like, so that high-quality raw material guarantees are provided for widely applying the wheat bran dietary fibers to foods.

The invention discloses a production method of an active earthworm protein. The production method comprises the steps of: purging live earthworms, self-dissolving the earthworms, grinding, filtering, centrifuging, carrying out membrane separation and drying to obtain the active earthworm protein. The active earthworm protein has the functions of dissolving thrombus, improving systemic circulation, softening blood vessels, stabilizing plaques, establishing collateral circulation, improving blood and oxygen supply of heart and brain, bi-directionally adjusting blood pressure, reducing blood viscosity and the like. The method disclosed by the invention has the advantages of simple process, high extraction efficiency, low production cost and high production purity and can provide safe and excellent raw materials to foods, health foods, medicines and cosmetics.

The present invention provides a refined salt preparation technology by using salt-making liquid waste. The technology comprises the following five steps: evaporation and concentration, mother liquor thickening, bitter salt recovery, washing and dehydration, as well as drying and packaging, and the refined salt will be finally sent to the salt storehouse. The effect of the invention is that the advanced vacuum salt-making technology and salt washing process are adopted in stead of alternative drying to produce high-quality industrial salt so as to improve the yield and quality of industrial salt. Meanwhile, the invention can also help improve the concentration of bittern that enters into the potassium-making work section to reduce the salinity and provide high-quality raw materials for the production of chemical plants; the application of the invention can save the alternative drying area, raise resource utilization rate, increase product yield and reduce the loss of chemical resources to provide a model road for comprehensive utilization of the seawater salt industry as well as the concentrated seawater salt-making after the desalination. The invention achieves organic combination between the new-type salt-making industry and the ocean chemical engineering and realizes zero-discharge of the salt-making waste liquid to make the brine resources be scientifically protected and rationally used. The invention can also protect the marine environment and gradually realize factory salt production.

The invention relates to a method for coproducing sodium chloride, magnesium sulfate and potassium chloride. The method for coproducing the sodium chloride, magnesium sulfate and potassium chloride is characterized in that raw material brine is subjected to processes of primary evaporation, cooling and secondary evaporation to gradually extract and separate the sodium chloride and the magnesium sulfate and prepare carnallite; and the carnallite is performed hydrolytic decomposition, and the potassium chloride is produced after washing and dehydration. The method has the advantages of realizing coproduction of three products, namely the sodium chloride, the magnesium sulfate and the potassium chloride. The extraction yield of the sodium chloride is above 85 percent; the extraction yield of the magnesium sulfate is increased to be between 56.95 and 62 percent; the extraction yield of the potassium chloride is improved by over 7 percentage; the quality of the carnallite is improved; and the content of the potassium chloride is between 19 and 23 percent, which provides good-quality raw materials for the next process.

The invention relates to the field of sanitary articles, and provides a natural antibacterial fiber spunlaced non-woven fabric and a preparation method and application thereof. The natural antibacterial fiber spunlaced non-woven fabric comprises hemp fibers and cotton fibers. The preparation method includes the following steps that the hemp fibers and the cotton fibers are pretreated respectively;the pretreated hemp fibers and the pretreated cotton fibers are mixed; the mixed fibers are subjected to opening and picking, carding and combing in sequence to form fine silvers, the fine silvers are pull apart to form fine webs, and then hydrophilic treatment, opening, carding, lapping, drawing, spunlacing, drying and reeling are carried out to obtain the natural antibacterial fiber spunlaced non-woven fabric. According to the method, damage to the hemp fibers is small, the loss is low, and the antibacterial property of the hemp fibers is well retained; the natural antibacterial fiber spunlaced non-woven fabric is good in evenness and combines the advantages that the cotton fibers are soft and comfortable and the hemp fibers are natural antibacterial, dry and breathable; the fabric truly has the advantages of being good in evenness, soft and comfortable, natural antibacterial, dry and breathable, can be widely used in the fields of sanitary napkins, wet wipes, cotton wipes and the like, and has broad application prospects.

The invention relates to an activation treatment method of oil shale distillation slag, which mainly comprises the following four steps: oil shale crushing, dry distillation activation, acid leaching, and calcination treatment. The invention is characterized in that the step of dry distillation activation of oil shale is carried out twice, and inorganic components are fully activated and removed through temperature adjustment, so as to finally obtain acid leaching residue in which carbon and silica are main components. The invention has the advantages as follows: the dry distillation and the activation of the oil shale are carried out simultaneously, and removed ash residue has higher reactivity and doesn't need second activation treatment, so that the activation energy consumption is greatly reduced; part of organic matters in the oil shale is transformed into shale oil, and the rest components are all burned fully to be converted into heat energy, so that all the organic matters are fully used; the low-consumption preparation of shale oil from oil shale is realized, useful components such as aluminium iron and the like are extracted, and high-quality raw materials for preparing cement and silica from ash residue with silica are obtained.

The invention discloses special feed for a juvenile alligator snapping turtle, which comprises the following components in percentage by weight: 49 percent-70 percent of fish meal, 8 percent-30 percent of bean pulp and/or meat and bone meal, 9.8 percent-23.2 percent of starch, 0.2 percent-4.7 percent of fish oil, 0 percent-6 percent of monocalcium phosphate, 0.5 percent-1 percent of vitamin, 1 percent-2 percent of mineral substance and 0.1 percent-0.3 percent of choline chloride. In the invention, the special feed for the juvenile alligator snapping turtle has the advantages of excellent raw materials and scientific nutrition preparation and can ensure that the raw materials are completely ingested by the juvenile alligator snapping turtle without generating aquaculture pollution caused by waste feed, wherein the crude protein is more than or equal to 45 percent, the crude fat is more than or equal to 6 percent, the water content is less than or equal to 10 percent, and the floating time is up to 8-10 hours; after the part of fish meal is replaced by the bean pulp and/or the meat and bone meal, the survival ratio of the alligator snapping turtle is not influenced, but various indexes, such as terminal weight, specific growth ratio, weight growth ratio and the like are obviously improved, and the production cost is greatly reduced.

The invention relates to an alkoxy silicon resin intermediate and a preparation method of the alkoxy silicon resin intermediate. The alkoxy silicon resin intermediate contains 8-15% of alkoxy; and the alkoxy silicon resin intermediate is of 10-500mm<2>/S based on the viscosity. The preparation method of the alkoxy silicon resin intermediate comprises steps as follows: (1) adding alcohol to organosilane for alcoholysis reaction; (2) adding a catalyst to a product generated in the alcoholysis reaction for condensing for 1-8 hours at 50-200 DEG C, so as to obtain a condensation product; (3) adding water to the condensation product for hydrolyzing at 30-100 DEG C; and (4) neutralizing until reaching pH (Potential Of Hydrogen) of 6-8, removing methanol in the product, and discoloring and filtering to obtain the alkoxy silicon resin intermediate. The alkoxy silicon resin intermediate provided by the invention is applicable to modified organic resin with active hydroxyl functional group, and also can be directly mixed with a curing agent; the alkoxy silicon resin intermediate is applied to coal coating, appliance paint and other high-temperature resistant products; and with adoption of the preparation method of the alkoxy silicon resin intermediate, less by-products are produced and the preparation method is economic and environment-friendly.

The invention relates to a method for rolling a steel plate with a heavy and medium plate mill. According to the method for rolling the steel plate with the heavy and medium plate mill, a steel plate with a thickness of 5-6mm is manufactured with the heavy and medium plate mill and is heated with a stepping heating furnace, the steel plate is put into the stepping heating furnace for 180-240 min, and soaking is carried out for 28-35 min at the temperature of 1210-1230 DEG C; the temperature for initial rolling is 1150-1180 DEG C and the temperature for final rolling is controlled between 800 DEG C and 900 DEG C; the cycle of a working roller is 500-800t; the maximum pressing reduction is 48-52mm every single time, and the maximum rolling force is 90000 kN; the roll bending force of the working roller is 1000-2000 kN, and the deviation range of the working roller is -50-+100mm. The method for rolling the steel plate with the heavy and medium plate mill has the advantages that the ultrathin steel plate with the thickness of 5-6mm and with a width more than 3000mm can be rolled, and the difference between the longitudinal performance and the horizontal performance of the steel plate is reduced.

The invention provides a free-pollution cyclic regeneration pre-treatment technology of waste lubricating oil. The process comprises the steps of chemical reaction dechloridation, hydrogenation heat treatment, atmospheric flashing, propane refining and reduced pressure distillation. Through the chemical reaction dechloridation, the problems about corrosion of organic chloride to the subsequent devices, pipeline blockage and catalyst poisoning during regeneration can be solved; through hydrogenation heat treatment, additives in the waste lubricating oil can be destroyed, ash formation matter istransformed into residues which can be removed through filtration, and the problems are solved that during propane refining, an interface is not clear and separation is difficult, and during reducedpressure distillation, fractionating tower plates scale. After light oil is drawn out through atmospheric flashing, the additives, metal salt, oxide condensation compounds, colloid and asphaltenes inthe waste lubricating oil are removed through propane refining, and finally, light components are effectively separated from the base oil through reduced pressure distillation. By means of the technology, undesired components in the waste lubricating oil can be effectively removed, high-quality raw materials are provided for subsequent hydrogenation refining, and long-period running of the subsequent hydrogenation device is ensured.

The invention provides a pretreatment process for regenerating high-quality base oil by using waste lubricating oil. The process comprises the steps of chemical reaction dechlorination, hydrocatalyticthermal decomposition, atmospheric flashing, propane refining and NMP or furfural extraction. The chemical reaction dechlorination solves the problems of corrosion, pipeline blockage, catalyst poisoning and the like caused by organic chlorine to a reaction device in the regeneration process by using the waste lubricating oil. The hydrocatalytic thermal decomposition destroys metal-salt additivesin the waste lubricating oil and solves the problem of difficult separation during solvent refining. The waste lubricating oil is subjected to atmospheric flashing, water and light fuel oil are removed, then topped residual oil is subjected to propane refining, additives, metal salt, oxidized condensate, colloid, asphaltene and other impurities in the waste lubricating oil are removed, and the ashcontent can be reduced to 0.02% or below. NMP or furfural is a solvent with high selectivity and low solubility, by utilizing the property, refined oil with less metal, carbon residues, colloid and aromatic hydrocarbon can be obtained, and high-quality raw materials are provided for hydrogenation.

The invention discloses a standardization planting technology of cold-highland-area aconitum vilmorimianum kom. The standardization planting technology includes the steps of 1, planting area selecting; 2, soil preparing; 3, seed selecting; 4, standardization cultivating; 5, field managing; 6, disease and pest preventing; 7, harvesting. By means of the planting technology of cold-highland-area aconitum vilmorimianum kom, a regular effect and a reasonable effect are achieved, the yield can be increased, quality can be guaranteed, and high-quality raw materials can be provided.

The invention provides a method for producing a functional biological organic base fertilizer by using chicken manure. The method is characterized by taking the raw materials such as pig manure, chicken manure and humus as the base, adjusting a best carbon-nitrogen ratio, adopting a deep tank continuous high-temperature aerobic dynamic fermentation process, adding rotten bacteria inoculants capable of facilitating decomposition and rotting of materials and deodorizing into the rotting process, and adding functional bacteria after the materials are rotten to produce high-quality functional biological organic fertilizer. The method has the advantages that an efficient decomposition technology and aerobic fermentation technology system is built, the treatment time of manure of livestock and poultry is shortened, and the production efficiency is improved; the functional bacteria are not mutually antagonized with mutualistic symbiosis; all the microbes can grow and propagate in different temperature zones and mutually exert effects, so that the fermentation effect is ensured fundamentally; the odor of the manure can be effectively removed; the manure of the livestock and poultry can be quickly rotted in 7-10 days.