156results about How to "Green production" patented technology

The invention discloses a method for using non-noble metal catalyst to catalyze decarboxylation of saturated fatty acid to prepare long-chain alkane. The method includes: 1) adding saturated fatty acid and a non-noble metal catalyst into a high-temperature and high-pressure reaction kettle; 2) conducting heating to 300-390DEG C to carry out decarboxylation for 0.5-8h; 3) cooling the decarboxylation product, conducting dissolving by an organic solvent, and performing filtering to obtain a liquid product and a solid catalyst; and 4) cleaning and regenerating the non-noble metal catalyst for reuse. The non-noble metal catalyst is prepared by a co-precipitation method or impregnation method, and the catalyst is regenerated through reductive calcination in hydrogen. The reaction process involved in the invention has the characteristics of no need for a solvent, low energy consumption, and zero emission. The non-noble metal catalyst can effectively catalyze decarboxylation, the catalyst is low in cost and is easy to recover, and the process is simple and green.

The invention discloses a preparation method of hexamethylenediamine. The method is used for preparing 1, 6-hexamethylenediamine by virtue of carrying out ammoniation and catalytic hydrogenation on 1, 6-adipaldehyde. The method is simple in process, low in cost, high in yield, low in energy consumption and free from industrial three wastes.

The invention provides a method for preparing high-purity sulforaphane and in particular relates to a method for extracting the sulforaphane from radish seeds. The method is used for preparing products having the purity of more than 98% from air-dried radish seeds as the raw material and through the steps of cracking, degreasing, hydrolysis, initial separation by use of resin, reverse osmosis concentration, preparation separation and freeze-drying. The method is simple and convenient to operate, simple in equipment, mild in reaction conditions, energy-saving, low in production cost, and convenient to popularize and utilize. The used methanol waste liquid is recovered, the used resin is regenerated and impurities generated can be recycled, and therefore, the production is safe, green and pollution-free, and the production method is capable of saving energy and reducing emission. The sulforaphane product prepared by the method can be widely applied to the industries such as medicines and health care products.

The invention discloses environment-friendly furniture coating. The environment-friendly furniture coating comprises the following components: water, fluoro-silicone modified acrylate emulsion, pure acrylic emulsion, a film forming auxiliary, a dispersing agent, a thickening agent, a preservative bactericide, a defoaming agent and a pH value regulator, wherein the fluoro-silicone modified acrylate emulsion is self made by adopting an emulsifier-free polymerization process. The environment-friendly furniture coating has good adhesion on the surface of a base material of wood and aluminum alloy furniture, does not volatilize VOC and is environment-friendly in production and using processes; meanwhile, the fluoro-silicone modified acrylate emulsion adopts a soap-free emulsion polymerization process, no emulsifier is added, and cleanliness of emulsion particles is further improved.

The present invention discloses a method using acetic acid for controlled catalysis of orientational hydrolysis of xylan to prepare multicomponent xylooligosaccharide, and the method includes the following steps: 1) adding food grade acetic acid to a suspension reaction system containing no more than 20% of the xylan until the final concentration of the acetic acid is not more than 30%, controlling the reaction temperature at 110 to 125 DEG C for reaction for no more than 3h to obtain a xylan hydrolysate; 2) performing microfiltration and nanofiltration on the xylan hydrolysate product to obtain an entrapped xylooligosaccharide solution and an acetic acid through liquid, and recycling the acetic acid through liquid for using in the step 1); and 3) using an edible alkaline material for neutralizing the entrapped xylooligosaccharide solution to neutral and producing sodium acetate, and removing the sodium acetate by electrodialysis treatment to obtain a xylooligosaccharide product solution. The recyclable edible acetic acid is used as a catalyst for the realization of controlled hydrolysis reaction of the xylan in the mild reaction conditions for orientational catalysis of hydrolysis of the xylan to prepare a xylooligosaccharide product containing xylooligosaccharide components with the polymerization degree of 2-8, the yield is more than 30% of raw material xylooligosaccharide, the product almost contains no furan, formic acid and other decomposition products, and xylooligosaccharide green production can be achieved.

The invention relates to a biological pesticide-added fertilizer and a preparation method thereof. The pesticide-added fertilizer is prepared from plant extract residue which comprises one of or a mixture of more than two of lightyellow sophora root extract residue, sophora alopecuroides L. extract residue and black false hellebore extract residue. According to the biological pesticide-added fertilizer, the organic solid waste resources are utilized thoroughly, the production cost is reduced and efficient utilization of the waste resources is realized; in the production process of the biological pesticide-added fertilizer, the environment-friendly effect is achieved, the discharge of wastewater and waste gas can be avoided, and the energy-saving, efficient and low-carbon effects are achieved; the biological pesticide-added fertilizer product is comprehensive and balanced in nutrition without any chemical pesticide and hormone addition, and has a good control effect on a plurality of soil-borne diseases and soil insects; the pesticide-added fertilizer is capable of fundamentally improving the physical and chemical properties of the soil and optimizing the structure of the microflora, and has efficient and lasting fertilizer efficiency and pesticide effect.

The invention discloses artificial marble polishing waste residue-based ceramic glazed tiles which are prepared from the following main components in percentage by weight: 1 to 25 percent of artificial marble polishing waste residues, 1 to 25 percent of wollastonite, 50 to 70 percent of feldspar and 15 to 25 percent of black mud. The ceramic glazed tiles are prepared from the artificial marble polishing waste residues serving as the raw materials; long-term pollution to the environment due to the artificial marble polishing waste residues treated in a landfill treatment manner can be completely avoided; meanwhile, by the use of the characteristic that the CaCO3 content in the artificial marble polishing waste residues is high, the artificial marble polishing waste residues can completely replace conventional limestone in the formula of ceramic glazed tile green bodies, so that the cost of the formula can be reduced, and wastes can be turned into treasures. The invention further discloses a preparation method of the artificial marble polishing waste residue-based ceramic glazed tiles. The preparation method is simple in flow and convenient to operate, can realize commercial production, and has an extremely application prospect.

The invention discloses a recombinant microbe for producing cytosine and a method for producing the cytosine. The recombinant microbe has at least one of the following characteristics: (1) the recombinant microbe does not degrade or utilize the cytosine; (2) the recombinant microbe accumulates the cytosine externally; (3) the recombinant microbe overexpresses the gene of encoding ribose kinase; (4) the recombinant microbe can utilize glucose and ribose simultaneously; and (5) the gene of regulatorprotein of encoding ribose and related compounds of the recombinant microbe is deleted or has no function. The recombinant microbe culture is adopted, and the cytosine or a mixture of the cytosine and cytidine can be solely produced through fermentation

The invention relates to the field of medicinal fertilizers and provides an organic rice medicinal fertilizer and a preparation method thereof. The organic rice medicinal fertilizer is prepared from the following raw materials in part by weight: 1.5 to 3 parts of indigowoad root, 7 to 15 parts of tarragon, 7 to 15 parts of crotalaria mucronata, 2.5 to 6 parts of Chinese mugwort leaf, 7 to 15 parts of flagleaf and 35 to 65 parts of farm manure. The preparation method comprises the following steps: a) washing indigowoad root, tarragon, crotalaria mucronata, Chinese mugwort leaf and flagleaf in aqueous solution of NaCl according to a weight part ratio, drying in the air, performing primary squeezing, collecting residue and juice, boiling the residue in the aqueous solution of NaCl, collecting residue and juice again, mixing the juice with the juice obtained after primary squeezing; b) fully and uniformly mixing the farm nature and the residue, and composting; and c) covering and closing the compost with a plastic thin film till the compost matures. The organic soybean medicinal fertilizer realizes the change of waste material into valuable material and the combination of fertilizer and medicine and can supply nutritional elements required by soybeans.

The invention discloses a method for preparing reducing leather based on collagen fiber grey fabric by combining with a spunlacing technology. The method comprises the following steps of treating of the collagen fiber grey fabric by the spunlacing technology, and preparing by a non-solvent film forming technology. The method has the advantages that according to the characteristics of the collagen fiber grey fabric, the reducing leather is prepared by the spunlacing technology and the non-solvent film forming technology, so that the obtained reducing leather has the sense and effect of true leather (two-layer leather), simple structure, high content of collagen (greater than 80%), and excellent mechanical property; the grey fabric treated by the spunlacing technology is treated by the non-solvent film forming technology to prepare a resin layer at the surface of the grey fabric, the elasticity and the hand feel of the reducing leather are improved, and the high-quality leather product is obtained; the utilization rate of the leather raw material is greatly improved, and the environment-friendly level of the leather industry is effectively improved.

The invention discloses a preparation method of biodiesel. The method comprises the following steps: carrying out a glyceridation reaction, a transesterification reaction, dealcoholization, sedimentation and methyl ester rectification on raw material acid oil to obtain BD100 biodiesel, wherein calcium glyceroxide is used as a catalyst in the transesterification process; a calcium oxide solid formsa glycerol-calcium methanol solution through processes of catalyst preparation, filtration and dissolution, the glycerol-calcium methanol solution is used for catalyzing the transesterification reaction process of the acid oil, regeneration of calcium oxide is further realized through processes of dealcoholization, sedimentation, glycerol rectification and water vapor conversion, and the regenerated calcium oxide is reused for a catalyst preparation process. The method has the characteristics of low raw material requirement, wide application range, high product yield, no solid waste, wide catalyst raw material source, recyclability and the like, and is suitable for industrial production. By adopting the method disclosed by the invention, the BD100 biodiesel can be economically, greenly, efficiently and stably produced.

The invention discloses a synthesis method of butanedione. According to the synthesis method, a salicylaldehyde derivative reacts with compounds of diamine to generate a schiff base ligand, then coordination with a transition metal salt solution is conducted to prepare metal schiff base complexes, then an F-C acylation reaction is conducted, the metal schiff base complexes are immobilized in a polystyrene microsphere carrier containing an acyl group to be prepared into an immobilized catalyst, and finally acetoin serves as a raw material and is added to the immobilized catalyst, air is introduced for catalytic oxidation, and the butanedione is obtained. According to the synthesis method, the F-C acylation reaction is conducted, the metal schiff base complexes are immobilized in the polystyrene microsphere carrier containing the acyl group, the immobilization rate of the immobilized metal schiff base complexes is raised through chemical bonds, posttreatment of a product obtained through the immobilized catalyst is simple, and the yield of is high; besides, the adopted raw material is the acetoin, production cost is lowered for enterprises producing the acetoin, product diversity is increased, and enterprise competitiveness can be improved.

The invention discloses an organic inorganic compound fertilizer, which comprises microbial functional flora amplification liquid and a fermentation raw material. The fermentation raw material comprises following raw materials in parts by weight: 20 to 30 parts of potassium ore powder with a size of 120-1200 meshes, 20 to 30 parts of phosphorus ore powder with a size of 80 meshed, 35 to 45 parts of nitrogen enriched organic substance, 5 to 10 parts of grass carbon powder with a size of 50 meshes, 2 to 5 parts of calcium oxide with a size more than 120 meshes, and 1 to 4 parts of zeolite with asize of 80 meshes, wherein the nitrogen enriched organic substance is one or more of soybean meal powder, bacterial protein, amino acid powder, fish meal, and feather powder. The compound fertilizerhas the advantages that nutrients are directly extracted from natural mineral powder, the chemical refining process is avoided, the whole production process is green, clean, and environmentally friendly, and the fertilizer can promote the growth of crops effectively. Low grade natural potassium/phosphorus ores are taken as the main raw materials, the raw material sources are wide, the cost is low,and the problem that low grade ores are difficult to use in industry is solved.

The invention discloses a fabrication process for an enameled wire taking waterborne insulation paint as an insulation layer. The fabrication process comprises the following steps of A, unwinding, inwhich a wire is uniformly payed off from a wire shaft; B, cleaning, in which surface oil dirt and particles are washed; C, annealing; D, painting, evaporating, curing and cooling, in which the step ofD comprises the steps of d1, painting, in which the waterborne insulation paint is coated on a surface of the wire employing a die or felt painting mode; d2, evaporating, in which water in a paintingliquid coated on the wire in the step d1 is evaporated; d3, curing, in which a film formation substance in the insulation paint is crosslinked and cured; d4, cooling, in which the insulation paint film is cooled by a cooling fan; and d5, repeating the steps of d1, d2, d3 and d4 until the paint film is coated on the wire surface for 5-24 times; E, lubricating, in which a lubricating agent is coated on the wire surface after the step D; and F, winding, in which the wire after the step E is taken up. The fabrication method has the advantages that environment protection, energy saving and consumption reduction can be achieved, the fabrication cost of the enameled wire is reduced, and green and circular economic development is achieved.

The invention relates to the field of medical fertilizers, and particularly provides an organic wheat medical fertilizer and a preparation method thereof. The organic wheat medical fertilizer consists of the following raw materials in parts by weight: 10-20 parts of rhododendron molle, 6-10 parts of earthworm cast, 15-25 parts of wheat straw and 35-65 parts of farmyard manure. The specific preparation method comprises the following steps of: cutting wheat straw; washing the rhododendron molle with water, airing to withering state, cutting, boiling in water for 20-30 minutes, separating, and collecting rhododendron molle juice and rhododendron molle residues respectively; fully and uniformly stirring the cut wheat straw, the earthworm cast, the farmyard manure and the rhododendron molle residues, composting, spraying the collected rhododendron molle juice onto every compost surface; performing the previous steps repeatedly till composting is completed; and covering and sealing a compost with a plastic film till the compost becomes thoroughly decomposed. By adopting the organic wheat medical fertilizer, 'change of waste into valuable' and 'combination of a fertilizer with a medicament' are realized, and nutritional elements needed by wheat can be supplied comprehensively.

The invention discloses a semisolid centrifugal separating casting ball grinding process, a process device and a ball casting machine. Returns serve as raw materials, and a metal liquid is processed into metal semisolid slurry conforming to requirements in a casting ladle and the ball casting machine, so that high-quality ball grinding can be achieved; and the metal liquid is subjected to evaporative cooling, so that the semisolid centrifugal separating casting ball grinding process can be actually applied in industrial production, however, if a short-flow process is to be adopted, a production line is required to be formed by a plurality of ball casting machines in a group casting mode, and the yield of the production line can be improved exponentially.

A fan system is electrically connected with a driving source and includes a first fan, a second fan and an energy storage. The second fan is rotated by the first fan for generating an electric energy. The energy storage is electrically connected with the second fan for storing the electric energy and keep supplying power when the driving source is out of order or the fan is rotating in lower rotation speed.

The invention discloses modified fluorine-containing resin coating and preparation and use method thereof, and belongs to the technical field of coating. The modified fluorine-containing resin coatingcomprises the following raw materials in parts by weight: 50-200 parts of modified fluorine-containing resin, 1-5 parts of a polyamide wax micro powder, 0.1-1 part of attapulgite, 0.5-10 parts of nano titanium dioxide and 0.5-10 parts of nano-silica, wherein the modified fluorine-containing resin comprises modified polytetrafluoroethylene (PTFE), a modified polyethylene-tetrafluoroethylene copolymer (ETFE or F40) and modified polyvinylidene fluoride (PVDF). The coating prepared by using the method disclosed by the invention has super-hydrophobic, anti-corrosion and anti-radiation functions, is simple in preparation process, and is green and free of pollution.

The invention discloses a manufacturing method of a bamboo fiber molding type product. The manufacturing method comprises the steps of: machining bamboo fibers through a machining process of accurate grinding, dissolving, vacuum-absorbing and shaping; enabling the fibers to take on brooming to the maximum extent by accurately grinding and hydraulically stirring the bamboo fibers for 30-50 min based on characteristics that the fibers of the bamboo fibers are long and thick, but not soft enough; and then enabling a surface of a finished product to be smooth and beautiful like a ceramic through vacuum absorption of moisture and high-temperature instant shaping. The manufacturing method of the bamboo fiber molding type product realizes 60-70% high-purity machining of the bamboo fibers, not only can realize green production of the bamboo fiber products, but also can be satisfied with requirements on production of environment-friendly tableware and packaging containers as the bamboo fibers obtained through the manufacturing method can be satisfied with the requirements on the bamboo fibers needed for the environment-friendly tableware.

The invention discloses an assembly type light steel-foam concrete composite floor and a construction method thereof. The floor comprises a floor frame and panels, wherein the floor frame comprises afirst transverse channel steel and a second transverse channel steel which are arranged along the longitudinal direction, a first longitudinal channel steel and a second longitudinal channel steel arearranged between the first transverse channel steel and the second transverse channel steel, the lap joint portion of the end portions of the first transverse channel steel, second transverse channelsteel, first longitudinal channel steel and second longitudinal channel steel is provided with a connecting part, the connecting part connects the first transverse channel steel, the second transverse channel steel, the first longitudinal channel steel and the second longitudinal channel steel integrally, a plurality of rebars are arranged between the first longitudinal channel steel and the second longitudinal channel steel along the longitudinal direction, a first panel and a second panel are paved on the rebars at the both sides of the floor frame, and a cavity formed by the first panel, the second panel and the floor frame is filled with foam concrete. The assembly type light steel-foam concrete composite floor and the construction method thereof have the advantages that the self-weight of the floor is light, the strength is high, the effects of heat preservation, sound insulation, heat insulation and water resistance are good, and the construction is convenient; all floors are produced in plants, thereby being capable of ensuring the quality requirements, producing in batch, guaranteeing the production speed, and achieving green production, not only are materials used reasonably, but also the environment is protected, and the floor is economic and practical.

The invention discloses a preparation method of food grade polyacrylamide, belongs to the field of functional polymers, and in particular relates to polyacrylamide polymers used in drinking water, food and medical industries, wherein the content of residual monomer of acrylamide is less than 0.025%. Food grade polyacrylamide is prepared by copolymerization through a low temperature segmented composite initiator in the presence of a cosolvent from two monomers of acrylamide and acrylic acid. The composite initiator system has the characteristic of prolonging the reaction time, so that the acrylamide monomer is adequately reacted. A counterpoison is further added in the prilling stage, so that the content of residual monomer of acrylamide is further reduced. Food grade polyacrylamide prepared by the invention has the advantages of stable quality of polymerization products, high molecular weight of products (over 18000 thousand) and good water solubility, and the content of residual monomer of acrylamide is less than 0.025% (meeting national standard).

The invention discloses a dust treatment device used in stone material processing, which includes a workbench, two auxiliary fixing boards, and two dust collecting covers. The auxiliary fixing boards are fixed to both sides of the workbench. A screw rod is movably installed in the inner side of each auxiliary fixing board through a bearing. Two ends of each screw rod respectively penetrate through the two ends of each auxiliary fixing board and are respectively connected to adjustment knobs. A moving block is movably installed on each screw rod. Each dust collecting cover is respectively fixed on one side, which is closed to the workbench, of each moving block. Four supporting legs are installed on the four corners of the bottom of the workbench through bolts. A first mounting plate is fixedly connected between the four supporting legs. A second mounting plate is arranged above the first mounting plate and is fixedly connected between the four supporting legs. A water tank and a settlement tank are arranged parallelly on the first mounting plate. A sprinkling box is installed on the second mounting plate. A water solution in the settlement tank can be recycled, so that the dust treatment device not only effectively removes dust but also is reduced in production cost and saves water resource.

The invention discloses equipment for forming a composite material. A master control system is connected with a controller provided for each module via a network, and used for sending running commands to the modules to run the modules; an electromagnetic output module receives the running commands sent by the master control system, and outputs electromagnetically induced current in a pulse mode; an electromagnetic power distribution and heating module distributes the current output by the electromagnetic output module to each heating module, so that the heating module heats a composite material forming mold in a specific combination manner and timing sequence; a pressurizing device is a pressure vessel or a mechanical pressurizing device; the composite material forming mold is placed in the pressurizing device, so that pressure can be exerted on the composite material laid on the composite material forming mold; and a vacuum control module having a vacuuming function is connected with the composite material mold via a pipeline, receives the commands of the master control system, and is used for vacuuming the composite material forming mold. The equipment has the advantages that the curing formation process cycle of the composite material is greatly shortened; and the transportation cost and the energy consumption are reduced.

The invention discloses a traditional Chinese medicine feed additive for improving immune function of pigs as well as a preparation method and application of the additive. The additive is prepared from the following components in parts by weight: astragalus membranaceus, fructus alpiniae oxyphyllae, Chinese yam, endothelium corneum gigeriae galli, poria cocos, hawthorn, pinellia ternate, rhizoma atractylodis, ginger, fructus amomi and liquorice. The preparation method comprises the steps of drying, smashing, screening and uniformly mixing the raw materials by adopting a traditional Chinese medicine production device to prepare, adding a prepared traditional Chinese medicine preparation into basic ration of a small healthy Meishan pig of 60 days, uniformly blending to feed, and carrying out free choice feeding and free water drinking. Upon verification of tests, the method can obviously improve the concentration of total protein and albumin in porcine serum; can significantly improve the content of immune globulin IgG and the content of a complement C3 in the porcine serum; obviously improves the antibody level of post-inoculation swine fever; increases the pig spleen indexes. Moreover, the defects of various chemicals and antibiotics feed additives are overcome, toxic and side effects and drug residues do not exist, and the body immune function is improved while the production of green and high-quality animal products is guaranteed.