374results about How to "Broaden sources of raw materials" patented technology

The invention discloses a process for treating inferior heavy oil and residual oil comprising the following steps: loading heavy oil and petroleum residue into a solvent extraction apparatus, charging the obtained deasphalted oil into a fixed bed for hydrotreatment, entering the obtained tail oil into a catalytic cracking device, loading part or total slurry oil and de-oiled asphalt into a floating bed hydrogenation unit, separating the outcome yield to obtain lightweight fraction and untransformed tail oil, which is circulated to the solvent extraction device.

The invention provides a method for using polyolefin plastic to prepare micromolecule alkene. According to the method, at first, the polyolefin plastic is cracked, then a liquid/ waxy product obtained through cracking is mixed with selectable liquid petroleum hydrocarbon and water, and the mixture is subjected to microwave pyrolysis to obtain micromolecule alkene. The method specifically comprises the following steps that the polyolefin plastic is conveyed into a moderate cracking device to be cracked, and a gas product a and the liquid/ waxy product b are obtained through gas-liquid separation; the product b is mixed with selectable liquid petroleum hydrocarbon and the water, and the mixture serves as a microwave pyrolysis raw material; and the microwave pyrolysis raw material is mixed with the water, the mixture is conveyed into a microwave pyrolysis device, after microwave pyrolysis is carried out, the mixture is quenched to be 500 DEG C or below, and a cracked product is obtained. According to the method, microwave heating of hydrocarbon raw materials insensitive to microwaves is achieved, the source of the raw material for preparing micromolecule alkene is expanded, by means of the inner heating characteristic of microwave heating, the cracking temperature is increased, the cracking efficiency is improved, and energy consumption is lower than that of a traditional pipe cracking furnace.

The invention relates to an ageing sweet-white wine and a brewing process of the ageing sweet-white wine, belonging to the technical field of brewing of wines. The physicochemical indexes of the ageing sweet-white wine disclosed by the invention are as follows: the content of reducing sugar is 80-90 g/L; the total acidity is 7.0-8.5 g/L; the alcoholic strength is 10.0-12.0%vol; the content of free sulphur dioxide is 30-45 mg/L; the total content of sulphur dioxide is less than or equal to 250 mg/L; the content of volatile acid is less than or equal to 1.0 g/L. The brewing process of the ageing sweet-white wine disclosed by the invention comprises the following steps of: (1) finely selecting grapes and removing stems; (2) crushing; (3) technically dividing; (4) centrifuging and clarifying at low temperature; (5) fining at low temperature, and filtering; (6) ageing by using an oak barrel; (7) blending and mixing; (8) fining for the second time, and filtering; (9) coldly processing stability; (10) sterilizing and filtering; (11) filling finished goods; (12) storing in a bottle. The ageing sweet-white wine disclosed by the invention is full-bodied in fragrance, graceful, lasting and plump in mouth feel; the brewing process of the ageing sweet-white wine disclosed by the invention is simple, scientific and convenient to operate; the production cost can be effectively reduced; the scale production of high-end sweet-white wines is realized.

The invention discloses a method for hydrogenating ethylene tar, which selects an appropriate cutting point to fractionate the ethylene tar into a light fraction and a heavy fraction aiming at the characteristics of high content of arene, colloid, carbon residue and asphaltene in the ethylene tar. The light fraction passes through a hydrogenation protection catalyst, a hydrofining catalyst, a hydrogenation and carbon residue-removing catalyst and a hydrocracking catalyst sequentially to obtain a gasoline fraction and a diesel oil fraction; and the heavy fraction passes through the hydrogenation protection catalyst, the hydrogenation and carbon residue-removing catalyst and a hydro-conversion catalyst sequentially to obtain a gasoline fraction and a diesel oil fraction. According to the component characteristics of the light fraction and the heavy fraction of the ethylene tar, the method selects different hydrogenation schemes so as to convert the ethylene tar into fuel oil to a great extent, increase the additional value of the ethylene tar and make the device operate for a long time.

The invention relates to a cream cheese and a preparation method thereof. The technical scheme is to use milk fat raw material: 15-85%; whole milk: 10-80%; milk protein raw material: 1-10%; carbohydrate raw material: 1-10%. The present invention expands the raw material source of the cream cheese, uses milk protein raw material, carbohydrate raw material and stabilizer as ingredients, forms a stable texture without whey precipitation, and omits the process step of removing whey. The invention uses lactic acid bacteria including diacetyl lactis streptococcus to mix and ferment the ingredients of cream cheese, so that the product can form a new flavor.

The invention relates to a method for extracting anthocyanin from plant berries and particularly relates to a preparation method of acanthopanax sessiliflorus berry anthocyanin with antioxidant activity. The preparation method comprises the following steps of (1) selecting acanthopanax sessiliflorus berries as raw materials; (2) extracting the acanthopanax sessiliflorus berry anthocyanin by using an enzyme freezing and thawing method: mixing the frozen raw materials and an extracting solution, unfreezing and breaking the frozen raw materials, and carrying out enzymolysis; (3) carrying out ultrasonic-microwave synergistic extraction on the acanthopanax sessiliflorus berry anthocyanin: carrying out ultrasonic-microwave synergistic extraction on enzymatic hydrolysate, and centrifuging to obtain a crude extracting solution; (4) purifying the crude extruding solution of the anthocyanin: absorbing the crude extruding solution by using macroporous resin, collecting an eluant, and carrying out vacuum concentration; (5) freezing and drying in vacuum; and (6) smashing the anthocyanin, and then, packaging the anthocyanin. The preparation method has the advantages of high extracting efficiency, short time, low energy consumption, small reagent dosage, stable properties of effective components and the like; and meanwhile, a vacuum freeze drying technology is adopted, so that a product has better biological activity, color, luster and solubility and the preparation method is suitable for industrial production.

The invention discloses a method for separating and purifying a flavone compound of momordica grosvenori leaves by HSCCC and the product thereof, wherein, the method of the invention comprises the following steps: the grosvenori leaves are added with water or other polar solvents so as to carry out reflux extraction; the obtained extracts adopt the mixed solution of ethyl acetate, normal butanol and water as a solvent system and are separated and purified by a preparation-type high-speed counter current chromatograph, and then kaempferol-3-O-Alpha-L- rhamnose-7-O-[Beta-D-glucosyl group(1-2)-O-L-rhamnoside] and kaempferol-3,7-Alpha-L-2- rhamnoside. In the method, by applying the HSCCC method to separate and purify the extracts of the momordica grosvenori leaves, two flavone compounds with higher purity are successfully obtained by separation, thereby extending the source of the raw materials for flavone products; moreover, the method has simple preparation technique, easy operation and high purification efficiency, lays the solid first stone for extraction and utilization of the effective components in the momordica grosvenori leaves, and can avoid environment pollution caused by the waste and throw of a large amount of momordica grosvenori leaves.

The invention provides a polyamide acid/polyacrylonitrile-based carbon fiber and a preparation method thereof, and belongs to the technical field of carbon fibers. The method comprises the following steps: firstly, preparing PAA/PAN primary blending fibers from a PAA/PAN blended solution by adopting a wet spinning method; heating the PAA/PAN fibers at an air atmosphere at 200-280 DEG C to cyclically transform PAA into polyimide (PI) and PAN to realize pre-oxidation so as to obtain PI/pre-oxidized PAN blended yarns; and treating at high temperature in the protection of inert gas to prepare the carbon fibers. The method is short in production cycle, the prepared carbon fibers have the advantages of high compactness, high coefficients of electric and thermal conductivities and small thermal expansion coefficient, and a novel source is provided to exploration of carbon fiber raw materials.

The invention discloses a method for hydrotreating ethylene tar, which comprises the following steps of: performing fractional distillation on the ethylene tar by selecting a proper cutting point to obtain light and heavy fractions; making the light fraction contact a hydrogenation protective agent, a hydrogenation refining catalyst, a hydrogenation carbon residue catalyst and a hydrocracking catalyst in turn, reacting to obtain products, and separating the products to obtain gasoline and diesel fractions; and making the heavy fraction contact a hydrogenation protecting catalyst, a hydrogenation carbon residue removing catalyst and a hydro-conversion catalyst in turn to obtain hydro-conversion generated oil, wherein partial hydro-conversion generated oil is circulated to enter a hydrogenation reaction area, and the rest hydro-conversion generated oil is separated to form gasoline and diesel fractions. In the method, according to composition characteristics of the light and heavy fractions of the ethylene tar, different hydrotreating schemes are selected, so that the ethylene tar is converted into fuel oil to the greatest extent, the problem of high temperature rise of a hydrogenation reactor bed can be effectively solved, the running period of the device is prolonged, full fractions of the ethylene tar are fully utilized and the added value of the ethylene tar is improved.

The invention relates to the field of preparation of needle coke crude materials and discloses a method and equipment for preparing the needle coke crude materials. The method comprises steps as follows: (1), a mixed crude material containing catalytic cracking slurry oil and a coking crude material is subjected to a cracking reaction, and an oil-gas mixture is obtained; (2), the oil-gas mixture is subjected to fractionation, and a gas oil component is obtained; (3), the gas oil component is subjected to hydrotreatment, and a hydrogenated product is obtained; (4), the hydrogenated product is separated into a gas oil light component rich in monocyclic and bicyclic aromatic hydrocarbons and a gas oil heavy component rich in tricyclic and tetracyclic aromatic hydrocarbons; (5), the gas oil light component is subjected to a condensation reaction, and a liquid-phase component rich in tricyclic and tetracyclic aromatic hydrocarbons is obtained. According to the method, the high-quality needle coke crude materials can be prepared through effective utilization of the catalytic cracking slurry oil, the crude material source of needle coke is widened, and quality of the needle coke crude materials is improved.

The invention relates to a preparation method of carboxymethyl cellulose, in particular to a method for preparing carboxymethyl cellulose by cotton dropped on the ground, which belongs to the technical field of polymer chemistry. The preparation method comprises: taking waste cotton dropped on the ground during spinning as a raw material and refining the cotton dropped on the ground; and obtaining a product of the invention by performing carboxymethylation to cellulose through processes of activation to the cellulose as well as etherification reaction, neutralization reaction and washing to the activated cellulose. The invention can broaden raw materials of the carboxymethyl cellulose and reduce the production cost and production risks brought by shortage of raw materials; and the cotton dropped on the ground produces no poisonous and harmful substances during purification, and has no emission of waste water, waste residue and waste gas, thereby reducing the environmental pollution.

The present invention discloses a hydrogenation method for producing lubricating oil base oil through poor-quality heavy distillate oil. According to the method, poor-quality heavy distillate oil and hydrogen gas enter a first-stage reaction zone to carry out a hydrorefining reaction, the reaction effluent is separated, the obtained liquid enters a second-stage reaction zone to carry out a hydrorefining reaction, the second-stage reaction effluent enters a third-stage reaction zone to carry out a hydrocracking reaction, the hydrocracking effluent is separated, and at least part of the tail oil and new hydrogen are mixed and then are subjected to an isomerizing dewaxing and finishing reaction to obtain various lubricating oil base oils. With the method of the present invention, the nitrogen-containing impurities in the poor-quality raw material can be subjected to hydrotreating under the relatively mild condition so as to make the poor-quality raw material meet the hydrocracking feeding requirement, such that the lubricating oil base oil raw material source is broadened; and the hydrorefining temperature is substantially reduced so as to increase the operation period of the device and process the poor-quality raw material, or increase the processing capacity of the device in the same operation period.

The invention relates to a method for extracting and separating chlorogenic acid from chrysanthemum. The method comprises the following steps: after water-removing is performed to a chrysanthemum, the raw material is lixiviated with solvent under the ultrasonic or microwave action, the crude extract of the chlorogenic acid is obtained after through solid-liquid separation, and then the chlorogenic acid pure product is obtained after through resin adsorption, separation and elution. The solvent is water, organic solvent or organic solvent-water mixed liquor. The water-removing is performed to the chrysanthemum, and the chrysanthemum is lixiviated with organic solvent or water at assistance of ultrasonic sound and microwave. Therefore, the yield of the chlorogenic acid can be improved, the production cycle is reduced, the chlorogenic acid pure product is obtained not the mixture with other ingredients, and the chlorogenic acid monomer is extracted form one chrysanthemum. Therefore, the range of the raw material of the chlorogenic acid can be extended, especially for the chrysanthemum in Canada, the chrysanthemum can turn the harmful into the beneficial and waste into valuable after development and utilization, and the invention has good economic, social and environmental benefits.

The invention discloses a method for preparing active carbon from licorice waste residue, belonging to the field of preparation of active carbon. According to the method, the licorice waste residue is used as a raw material, and the active carbon is prepared by adopting a chemical activation method under an appropriate process condition, wherein the appropriate process condition for preparing the active carbon is determined by controlling the influence of factors including the category and concentration of an active agent, a solid-liquid ratio, the activation time, the activation temperature and the like on the yield and adsorption performance of the active carbon. The method comprises the procedures of treating the licorice waste residue and activating with potassium hydroxide or phosphoric acid to obtain a finished product. The active carbon is prepared by adopting a potassium hydroxide or phosphoric acid activation method, so that Chinese medicinal residue can be transformed from low additional value to high additional value, environmental pollution is reduced, the raw material source for producing the active carbon is widened, and a new path is developed for recycling Chinese medicinal residue.

The invention discloses a method for smelting low chromium pig iron by utilizing chromium slag, which is characterized in that low chromium pig iron is prepared by carrying out granulation after mixing the chromium slag, iron ore powder, coke powder and lime, sintering granules by a sintering machine to form sintered ores after granulation, and then sending the sintered ores into a blast furnace to smelt. The invention has the advantages that the chromium slag is adopted as raw materials and smelted to form the low chromium pig iron by utilizing the blast furnace, thereby treating the harmful waste chromium slag, also increasing the raw material source of the low chromium pig iron, providing a new economic and practical raw material source to industries of stainless steel, wear resistance cast and the like and changing waste into valuable.

The invention discloses a composite fiber viscose filament and preparing method, which adopts the following random two or more combination as raw material: cotton velvet, hemp, wood, bamboo, straw and crust. The preparing method comprises the following steps: blending pulp; immersing; squeezing; grinding; etiolating; adhering glue to grind; dissolving; grinding; filtering; ripening; debubbling; spinning; refining; drying to make cylinder. The invention reduces cost to improve manufacturing efficiency with excellent paintability, elasticity, desiccating and air permeability, which is better than kinds of synthesizing fiber.

The invention relates to a method for producing water-soluble potassium ammonium phosphate from wet-process phosphoric acid. According to the method, a monoammonium phosphate solution is prepared from low-cost wet-process phosphoric acid as the raw material by the steps of desulfuration and defluorination and neutralization with ammonia; then the replacement reaction of the monoammonium phosphate solution and potassium chloride and the crystallization are carried out to obtain a water-soluble fertilizer which contains potassium dihydrogen phosphate as a main component and adopts ammonium dihydrogen phosphate as an auxiliary component, wherein the content of chlorine is smaller than 2%; and excess potassium chloride and nitrogen produce a by-product such as nitrogen phosphorus and potassium chloride water soluble compound fertilizer. Meanwhile, the by-product in the production process can be directly used as a citric acid soluble phosphatic fertilizer. The method has simple processes, and the prepared water-soluble ammonium potassium dihydrogen phosphate is high in purity, nutrient and potassium content. No waste residues are discharged in the whole process, so that the method is environment-friendly and has better social and economical benefits.

The invention discloses a method for producing clean fuel oil from ethylene tar. The method consists of: fractionating ethylene tar into light fraction and heavy fraction, mixing the heavy fraction with a conventional coking raw material, conducting delayed coking to obtain coker gasoline and coker diesel oil, performing hydrofining on the coker gasoline, mixing the coker diesel oil with the ethylene tar light fraction, subjecting the mixture to hydrotreating, and leaving the reaction effluent and the coker gasoline hydrofining product together to undergo separation by a fractionating tower, thus obtaining clean gasoline and diesel oil products. Directed at the characteristics of high content of aromatic hydrocarbon, colloid, carbon residue and asphaltene in ethylene tar, the method provided in the invention fractionates the ethylene tar into light fraction and heavy fraction, and adopts different processing processes according to the composition characteristics of each fraction, thus not only enhancing the utilization rate of ethylene tar, increasing the yield of light fuel oil, but also improving the product quality of light fuel oil, and enabling the equipment to run smoothly for a long period.

The invention belongs to the scientific and technical field of carbon materials, and provides a method for preparing metal or metal oxide/carbon composite materials by asphaltine. The method takes the by-product asphaltine in the coal liquefaction process as a carbon source, takes a pyrolytic polymer as a pore-forming agent, and takes easily-pyrolytic metal salt as a metal precursor; and then the metal or the metal oxide/carbon composite materials are prepared by one step after the physical blending and carbonizing reductive treatment. The metal or the metal oxide/carbon composite materials prepared by the method have the controllable appearance that the metal or the metal oxide is uniformly dispersed in a carbon carrier with the grain diameter of 3-50nm. The preparation process has simple routes, mild conditions, conventional equipment, low cost, and controllable output of products, and is suitable for mass production. The prepared metal or the prepared metal oxide/carbon composite materials can be used as a highly-active catalyst, an adsorbent, a magnetic separation material, an electrode material and the like.

The invention relates to a colored glossy elastic polyester fine-denier carpet yarn and a preparation method. The carpet yarn is a plied yarn of 1,200 to 3,600dtex formed by at least two twisted polyester single yarns of 600 to 1,800dtex; and the twisted polyester single yarn is formed by multifilaments of a colored, glossy, fine-denier, profiled and three dimensional crimped polyester filament yarn. The preparation method comprises the steps: firstly, carrying out fibrous colored spinning procedures comprising spinning, false twist deformation and yarn doubling in the field of garment; secondly, obtaining three dimensional crimped polyester filament yarns with colors, fine-deniers and heteromorphous sections; and thirdly, obtaining colored, glossy and elastic polyester fine-denier carpetyarns through the post processing procedures comprising strand combing and sizing in the field of carpet yarns. The colored glossy elastic polyester fine-denier carpet yarn solves the problems of poor handfeel, resilience and dyeing property of the polyester fiber, not only can meet the requirements on the characteristics of carpet products, such as coverage, bulkiness, resilience, lodging resistance and foot-feel comfort, but also has the characteristics of high weather resistance, good color fastness, and energy-saving high-temperature high-pressure dyeing prevention.

The invention discloses a treatment method of ethylene tar. The method consists of: fractionating ethylene tar into light fraction and heavy fraction, mixing the heavy fraction with a conventional coking raw material, conducting delayed coking to obtain coker gasoline, coker diesel oil and coker gas oil, mixing the coker diesel oil with the ethylene tar light fraction, performing rectification/crystallization purification to obtain naphthalene, mixing the naphthalene removed oil, naphthalene after-cut oil, with the coker gasoline and the coker gas oil, taking the obtained mixture as a hydrotreating raw material, leaving the material to undergo a hydrofining reaction, separating gasoline fraction I, subjecting the obtained fraction heavier than gasoline to hydrocracking so as to obtain gasoline fraction II and a diesel oil product, and mixing the gasoline fraction II with the gasoline fraction I so as to obtain a final gasoline product. Directed at the characteristics of high content of aromatic hydrocarbon, colloid, carbon residue and asphaltene in ethylene tar, the method provided in the invention fractionates the ethylene tar into light fraction and heavy fraction, and adopts different processing processes, thus increasing the added value of ethylene tar. While generating the chemical raw material naphthalene, the method also improves the product quality of light fuel oil, and also enables the equipment to run smoothly for a long period.