563results about How to "Cheap source" patented technology

A crude oil feedstock or crude oil fractions containing pitch feedstock is pyrolyzed in a pyrolysis furnace.</PTEXT>

The invention aims at providing a health-care food enhancing immune function of human body and provides a preparation technique thereof. The health-care food, according to weight proportion, is produced by raw materials comprising 10-50 portions of gen-seng, 10-50 portions of glossy ganoderma and 10-50 portions of zymotic cordycepin powder; the raw materials comprising the gen-seng, the glossy ganoderma and the zymotic cordycepin powder are positioned in a hop-pocket; the processed raw materials are carried out heating and decoction for 1-3 times (each time is for 1-2 hours) after being added with water for soaking for one hour; extraction solution is mixed, filtered and concentrated to defined amount; after being cooled, concentrated solution is carried out high-speed centrifugal impurity removal; the obtained concentrated solution is produced into required preparation independently or by adding with accessories acceptable in medical science with the conventional processes of pharmacy.

The invention discloses silicon dioxide aerogel and a preparation method thereof. The silicon dioxide aerogel of a three-dimensional network structure is prepared by the step of subjecting alkaline silicate and inorganic acid to neutralization reaction, washing, rapidly dehydrating for drying, and crushing; the aerogel is internally filled with pores of about 20nm and has the silica content (dry basis) of more than 99.0%, the BET (Brunauer, Emmett and Teller) specific surface area of 300-800m<2>/g, the pore space volume of 1.6-3.0, the average granularity of 3-20 mum and the pore volume of 1.7-3.6ml/g. In the invention, the alkaline silicate is used as a silicon source and is subjected to neutralization reaction with the inorganic acid, the raw materials are readily available, cheap and innoxious, and the process flow is short and is easy for industrialization.

The invention provides a composite material special for blow molding of a reinforced nylon air inlet pipe. The composite material comprises the following components in percentage by mass: 20-83 percent of main material, 3-10 percent of modifier, 3-35 percent of elastomer, 10-30 percent of enhancing filler and 1-5 percent of auxiliary agent. The composite material special for blow molding of the reinforced nylon air inlet pipe can be used in blow molded products of air inlet pipelines, oil paths or cooling system pipelines at the peripheries of automobile engines. The composite material contains the reinforcing filler; the strength and the high temperature resistance performance of the composite material are improved; and the composite material is rich and cheap in raw materials and is suitable for promotion and application.

The invention relates to avermectin B2a/2b amine derivatives and derivative salts thereof, and a preparation method and an application of the avermectin B2a/2b amine derivative salts. The avermectin B2a/2b amine derivatives comprise six types of compounds. The avermectin B2a/2b amine derivative salts are salts formed by reactions of the six types of avermectin B2a/2b amine derivatives and organic acid and inorganic acid. The preparation method of the avermectin B2a/2b amine derivative salts comprises the steps that: (1) avermectin B2a/2b is subjected to a protective reaction with tert-butyl dimethyl chlorosilane or allyl chloroformate; (2) protected B2a/2b is subjected to a reaction with an oxidant, such that an avermectin B2a/2b ketone compound is obtained; (3) the ketone compound is subjected to an amination reaction, such that protected amine derivative is obtained; and (4) the protective agent is removed, such that B2a/2b amine derivative is obtained; the derivative is subjected to a reaction with organic or inorganic acid, such that avermectin B2a/2b amine derivative salt is obtained. According to the invention, avermectin B2 is adopted as a matrix for synthesizing avermectin B2a/2b amine derivative and avermectin B2a/2b amine derivative salt, such that avermectin B2 applciation range is widened.

The invention relates to a preparation method of dehydroisoandrosterone. According to the preparation method, a compound 1 is prepared by a compound 2 through esterification reaction, ketalation reaction, reduction reaction and hydrolysis reaction. When the dehydroisoandrosterone is prepared by the chemical synthetic method, the defects of difficulty in control, cumbersome post treatment, high risk, pollution of the environment, and the like in traditional production method are avoided. Compared with the traditional production method, the reaction conditions of the preparation method are easyto control, the post treatment process is simple, and the yield is higher can be up to 80.79% after refining. Raw materials of the preparation method can be prepared by sterol through microbial fermentation, the raw materials are wide in sources, are cheap and relatively environmentally friendly and can be purchased from Hunan Nuokai Biological Pharmaceutical Co., Ltd, and the structural formulasof the compound 1 and the compound 2 are as follows.

A method is disclosed for reducing lost circulation in drilling wells, employing composite materials as lost circulation materials. The composites comprise a thermoplastic polymer and cellulosic fibers. Optionally the composites may include other components such as calcium carbonate, clay, oil and other blending agents.

A liquid fertilizer containing biogas slurry is composed of 50-80 weight parts (the same as below) of biogas slurry concentrated solution, 20-30 parts of urea, 15-25 parts of potassium dihydrogen phosphate, 1-3 parts of calcium chloride, 2 -4 parts of magnesium sulfate heptahydrate, 1-1.5 parts of ferric chloride hexahydrate, 0.8-1 parts of zinc sulfate heptahydrate, 0.5-1 parts of boric acid, 0.4-0.7 parts of ammonium molybdate tetrahydrate, 0.2-0.3 parts of cupric sulfate pentahydrate, 0.1-0.2 parts of manganese chloride tetrahydrate, 3-5 parts of citric acid monohydrate, 1-5 parts of ascorbic acid, 1-5 parts of tween 80, whose pH value is 7-8.5, the use of liquid fertilizer is diluted 500-2000 times with water, the pH value is adjusted to 6-7 by acid, the liquid fertilizer can be used as soilless culture and/or foliage fertilizer to spray, has advantages of stable fertilizer, rich and perfect nutrient ingredients, abundant sources of material, low cost, environmental protection, large usable floor area due to convenient transportation.

A method of treating an offgas includes purifying the offgas to remove particulate matter, water, undesirable gaseous components and inert gases to produce a dried carbon oxide gas feedstock, and converting at least a portion of carbon oxides in the dried carbon oxide gas feedstock into solid carbon. In other embodiments, a method includes passing a dried carbon oxide gas feedstock through a multi-stage catalytic converter. A first stage is configured to catalyze methane-reforming reactions to convert methane into carbon dioxide, carbon monoxide and hydrogen with residual methane. A second stage is configured to catalyze the Bosch reaction and convert carbon oxides and hydrogen to solid carbon and water.

The invention discloses a method for preparing high-specific-surface-area activated carbon from tobacco stalks, which comprises the following steps: pulverizing tobacco stalks into granules, mixing the granules and an activating agent according to a mass ratio of (1:8)-(2:1), adding the obtained mixture into water, evenly stirring, and impregnating for 10-14 hours; after impregnation is finished, filtering, drying the filter residue, placing into an electric furnace having a nitrogen protective atmosphere, and carbonizing at 450-750 DEG C for 1-2 hours; and after carbonization is finished, cooling in a nitrogen atmosphere, washing the obtained furnace slag, and drying. According to the method, high-quality activated carbon can be simply and quickly prepared from wastes in the tobacco industry. Thus, the method changes wastes into valuable substances, fully utilizes resources, avoids environmental pollution, has good economic benefits and is beneficial to industrial production.

A Fe-matched matter-halogen electrochemical system used on liquid flow energy storage is prepared as separating positive/negative electrode electrolyte by positive ion exchange film and storing said electrolyte in external container, generating charge/discharge process by making oxidation/reduction reaction on inert carbon felt electrode through pump stream via battery, applying soluble Fe(III)/Fe(II) -matched matter oxidation/reduction electric pair as negative electrode and applying halogen oxidation/reduction electric pair as positive electrode.

The present invention discloses a low smoke halogen-free environment-protection fire-retardation type sheet molding compound, which comprises, by weight, 60-80 parts of an unsaturated polyester resin mixture, 20-60 parts of a thermoplastic high molecule polymer slurry, 1-3 parts of an initiator, 2-4 parts of a thickener, 0.02-0.5 part of a polymerization inhibitor, 5-15 parts of a mold release agent, 90-140 parts of a filler, 80-150 parts of aluminum hydroxide powder, 1-10 parts of an organosilicon synergist, 1-8 parts of a smoke suppressant, 5-25 parts of a liner phenol formaldehyde resin, and 80-200 parts of reinforcing fibers. Compared with the conventional fire retardation agent, the low smoke halogen-free environment-protection fire-retardation type sheet molding compound has the following advantages that: a fire retardation performance of the composite material is increased, smoke density during burning is reduced, excellent mechanical properties of the material is maintained, and disadvantages of large smoke density during burning and low comprehensive mechanical performance of the existing fire-retardation sheet molding compound are solved.

The invention relates to a technology for producing coal-series needle coke by taking middle-temperature and low-temperature coal tar asphalt as a raw material. The technology mainly comprises the following steps: carrying out decompression and distillation, and extraction and removal on middle-temperature and low-temperature coal tar; combining hydrogenation treatment, thermal polymerization andcalcining technologies under the action of a non-metal homogeneous mild-hydrogenation catalyst to prepare the coal-series needle coke with good performance and relatively high yield. The non-metal homogeneous mild-hydrogenation catalyst is mainly prepared from the following raw materials in percentage by mass: 55 weight percent to 79 weight percent of semi-coke, 20 weight percent to 40 weight percent of coke and 1 weight percent to 5 weight percent of graphene. According to the technology provided by the invention, after the raw material is subjected to combined pre-treatment, a refined asphalt raw material is reasonable in constitution and has a few of impurities; the catalyst has excellent modification performance and does not need to be separated subsequently; the graphene component also can be used for promoting a middle phase in a thermal polymerization process to form a wide-area and ordered fibrous structure and a high-performance needle coke product is easy to form.

The present invention provides a concrete composition that utilizes rubber aggregate with a distinct geometric shape. Preferably, the source of the rubber constituting the aggregate is used rubber tires cut by special saws or high pressure water jets to provide a smooth finished edge. Moreover, additional materials such as superplasticizers, fly ash, carbon fiber, fiberglass, and steel may also be mixed with the concrete compositions to vary the finish product's material properties.

The present invention relates to a suspension emulsion gel loaded with fat-soluble vitamins and a preparation method thereof, and belongs to the technical field of food processing. The suspension emulsion gel comprises the following components in parts by weight: 1-10 parts of fat-soluble vitamins, 1-10 parts of vegetable proteins, 0.5-3 parts of polysaccharides and 30-60 parts of vegetable oil rich in unsaturated fatty acids. The preparation raw materials are cheap in source, safe, good in biocompatibility, fast in biodegradation and easy for modification. The prepared suspension emulsion gelhas good stability, is simple in technology, low in cots, safe, environmentally protective, good in product stability and high in bioavailability, can be used in various foods to enhance sensory value, edible value and nutritional value, and can also be used for preparing healthy functional foods or healthy accessory ingredients.

The invention relates to the use of vanillic aldehyde receptor activator in preparing products against Alzheimer's disease, wherein the vanillic aldehyde receptor activator comprises vanillic aldehyde and its derivative, capsaicin analogue and derivatives.

The invention discloses injectable self-repairing hydrogel based on polysaccharides, a preparation method and application of the hydrogel to biological tissue engineering, and belongs to the technical field of high polymer materials. The method includes the steps of modifying natural high polymer chitosan so that the defect that the chitosan can only be dissolved in acid solutions can be overcome and the dissolubility of the chitosan in water can be improved; conducting mixing reaction on the chitosan and a modified sodium hyaluronate derivative solution, delaying the reaction time or raising the temperature so that sol can be converted into gel and hydrogel can be endowed with the injection characteristic and the self-repairing characteristic. It is shown through cell co-culture experiments that the intelligent hydrogel has the advantage of high biocompatibility, degradability and the like. The injectable self-repairing hydrogel as a novel medical high polymer carrier material has potential biological and medical application value when used for the co-culture together with cells, protein, DNA, antigens and other active substances, and even the delivery, release and other aspects of medicine and other in-vitro substances.

The invention relates to a nano magnetofluid fracturing fluid imbibition oil-increasing method for a tight reservoir and modified nano magnetic particles. The nano magnetofluid fracturing fluid imbibition oil-increasing method comprises the steps that magnetic fracturing prepad fluid is pumped into a formation, a crack is formed in the formation, a magnetic field is applied to the well bottom, andthe modified nano magnetic particles in the magnetic fracturing prepad fluid are delivered to a target oil reservoir; a fracturing fluid base fluid and a propping agent for fracturing are mixed to form sand-carrying fluid to be pumped into the crack formed in the formation, so as to support the geometrical shape of the crack; and after fracturing construction, the magnetic field is applied to thewell bottom, thus the nano magnetic particles adsorbing crude oil flow back into a wellbore and then recovered out of the ground, and the magnetic particles are recovered through the magnetic force effect. The nano magnetofluid fracturing fluid imbibition oil-increasing method for the tight reservoir and the modified nano magnetic particles are suitable for an oilfield with the high water content, the modified nano magnetic particles have high lipophilicity and hydrophobicity, thus the magnetic particles adsorb the crude oil in the target oil reservoir and flow back to the wellbore through the pressure difference at the well bottom and the effect of the externally applied magnetic field, the crude oil output can be well increased, water production is reduced, the magnetic nanoparticles are recovered out of the ground in the oil recovery process, and the magnetic particles can be recovered through magnetic force to be reused, so that the production cost is reduced.

The present invention provides the synthesis process of (3aS, 6aR)-1, 3-dibenzyl-tetrahydro-4H-furo[3, 4-d]-imidazolyl-2, 4(1H)-dione. Compound 1, 3-dibenzyl imidazolidine-2-one-2H-furo[3, 4-d]-imidazolyl-2, 4, 6-trione is made to produce enantiotropic selective ring-opening reaction with fatty alcohol and arylkyl alcohol under the catalysis of chiral amine to produce (4S, 5R)-1, 3-dibenzyl-5-alkoxycarbonyl-2-oxyimidazolidine-4-carboxylic acid, which is then reduced with borohydride and ring-closed under Lewis acid catalysis inside organic solvent to produce (3aS, 6aR)-1, 3-dibenzyl-tetrahydro-4H-furo[3, 4-d]-imidazolyl-2, 4(1H)-dione in the total yield over 88 %. The said process uses easy-to-obtain material, has mild reaction condition and is suitable for industrial production.

The invention relates to a rolled tungsten-copper alloy material and a preparation method thereof, and relates to a tungsten-copper alloy material and a preparation method thereof. The invention solves the problems of poor compatibility between phases, less than 99 percent of density, high cost of manufacture equipment, complex technological process, large energy consumption and low production efficiency in the prior tungsten-copper alloy material. The rolled tungsten-copper alloy material is prepared by tungsten powder and copper powder. The preparation method comprises the following steps: firstly, preparation of mixed powder; secondly, preparation of a blank; thirdly, vacuum degassing of the blank; fourthly, preparation of an extruded tungsten-copper alloy material; and fifthly, acquisition of the rolled tungsten-copper alloy material after heating and pressurizing of the extruded tungsten-copper alloy material. The rolled tungsten-copper alloy material has good compatibility between the phases, and increases the density by 0.2 to 0.5 percent. The preparation method is simple, and has low equipment cost required, simple technology, low energy consumption and high production efficiency. The rolled tungsten-copper alloy material and the preparation method are suitable to be used in the fields of preparation, application and so on of electric spark machining electrodes, resistance welding electrodes and electronic packaging and heat sinking materials.

The invention relates to the technical fields of oil deep processing and oil comprehensive utilization, and particularly discloses a preparation method for conjugated oil and application of the conjugated oil. The preparation method comprises the following steps: adding iodine into oil, reacting at the temperature of between 80 and 200DEG C for 0.5 to 5 hours under stirring in the nitrogen environment, and removing the iodine to obtain the conjugated oil. The preparation method is simple, the using amount of a catalyst is small, the conversion rate is high and solvents are not required to be added. Illegal cooking oil also can be taken as a raw material which is low in cost. The conjugated oil prepared can serve as a raw material for preparing fine chemicals, slow release fertilizers or controlled-release fertilizers.

A low-molecular potassium alginate is prepared from edible seaweed, kelp, seatent, etc through extracting in hot water for 1-5 hr, separating, vacuum concentrating to obtain alginic acid, adding potassium salt to obtain potassium alginate, and degradating by enzyme. It can be used to prepare the medicines for lowering blood pressure and decreasing blood fat, blood sguar and cholesterine.