232results about How to "Process green" patented technology

The invention relates to a niobium-containing compound catalyst for efficiently converting carbohydrates into 5-hydroxymethyl furfural, which has high activity and selectivity for preparing hydroxymethyl furfural (HMF) by dehydrolyzing saccharides and is an ideal catalyst for preparing HMF. When the reaction is performed under moderate conditions, the target product HMF can have a high yield. The catalyst is environment-friendly, is easy to separate and recycle, can be reused, is convenient and practical to operate, and can not corrode the equipment, thereby being an ideal solid acid catalyst for preparing HMF, and having significant industrial application meanings.

The invention relates to a green, economical and sustainable method for preparing nanocellulose fibrils. The preparation method comprises the following steps that 1, a cellulose raw material is added to a citric acid solution to be heated, stirred and hydrolyzed; 2, treated cellulose and hydrolysate are separated through methods of centrifugal sedimentation and the like, and precipitated cellulose is centrifugally washed with water multiple times and diluted into a cellulose suspension; 3, the separated hydrolysate can be directly recycled at least once, citric acid is recovered from the recycled hydrolysate, and the citric acid obtained through recovery can be recycled continuously; 4, the natural structure of the cellulose suspension obtained in the second step is further destroyed through a high pressure homogenizer or ultrasonication or physical mechanical treatment of a disc mill, and the colloidal nanocellulose fibrils are obtained. According to the method for preparing the nanocellulose fibrils, a catalyst is not adopted, the reaction condition is relatively mild, the reaction is easy to control, operation is easy, and the method is friendly to environment.

The invention discloses a method for recycling nitrogen gas and sulfur dioxide from calcining iron pyrite burner gas through variable-voltage variable-frequency adsorption. The method comprises the following steps: dedusting, purifying, drying and cooling the calcining iron pyrite burner gas, and removing dust particles and rust by a refining sulfuric acid burner gas filter made of a 200-mesh polytetrafluoroethylene material; deeply dehydrating by a refining dehydrating tank in a refining manner, deoxidizing and removing carbon dioxide, separating N2 and SO2 through variable-voltage variable-frequency adsorption, compressing or cooling and performing gas-liquid separation to obtain liquid SO2, bottling the separated nitrogen gas and the liquid SO2 for industrial use, and enabling SO2 which is not liquefied and separated to enter a circulating process of compression or cooling and gas-liquid separation, so as to enable SO2 to be separated continuously. The method realizes comprehensive utilization and zero emission of mixed burner gas containing a great amount of nitrogen gas and sulfur dioxide caused by calcining of iron pyrite, the obtained liquid SO2 has high purity, the process is green, safe and energy-saving, and realizes zero emission and low cost.

This invention provides ZJB-064(Rhodococcus rubber ZJB-064) of a new microbial strain selected from soil and its application in preparing p-hydroxyben acetamide, in which, said ZJB-064 was preserved in China tipical cultivated subject center in April 14, 2006 with the preservation number of CCTCCNo: M206040 and is used in sybthesizing p-hydroxyben acetamide.

The invention discloses a method for sustainably preparing nanometer cellulose in an environment-friendly and economic mode. The preparing method includes the following steps that 1, cellulose raw materials and organic acid are hydrolyzed and esterified; 2, the treated cellulose is prewashed in a centrifugal sedimentation mode, the organic acid is separated to be continuously recycled, washed cellulose suspension liquid is dialyzed, and then reacted acid and accessory substances are removed; 3, the dialyzed suspension liquid is separated to obtain small-particle cellulose nanometer crystals; 4, cellulose solid precipitated on a lower layer of the suspension liquid is treated through a high-pressure homogenizer or an ultrasonication physical machine to obtain colloidal cellulose nanometer fibrils. According to the method, in the preparing process, the modified cellulose raw materials are synchronously hydrolyzed and esterified through relative-safety and environment-friendly food-grade organic acid; compared with inorganic strong acid, the used organic acid is low in corrosion performance, high in boiling point, small in reaction pressure and easy to control and operate, and the cellulose nanometer crystals with the stable quality and the cellulose nanometer fibril products with the stable quality can be obtained at the same time.

The invention relates to a method for preparing 5-hydroxymethyl furfural (HMF), an important platform compound, by directly using a fructose source biomass. The method for preparing the HMF is mainly divided into two steps: firstly, a monosaccharide solution is obtained by the transformation of polysaccharide in the fructose source biomass; under the condition that catalysts such as protonic acid, cation exchange resin, zeolite, Lewis acid and the like are added in a system of an aqueous-organic phase to exchange, a salt for salting out and stabilizing the HMF is added in the aqueous phase and the HMF is prepared by heating at proper temperature.

The invention provides a new stem of microbe-Bacillus subtilis ZJB-063 selected from soil, and application of preparing hydroxy-Benzeneacetic acid. The useful effects of the invention including: sythetising hydroxy-Benzeneacetic acid by Bio-treatment using new selected stem to replace chemical synthesis method. The method has advatages of high conversion ratio, friendly environment and green process. The stem can hydrolyze nitrile compounds with high toxicity to acid compounds with little danger, Bio-treatment is the most econnomic, most effective method for processing nitrile compounds with high toxicity of industrial wastewater so far, so the invention has important actual sense in environment protection.

The invention relates to an LED artistic lighting device which comprises a plurality of LED lamp strings and a driving plate, wherein the driving plate is used for providing proper electrical power and executing functional control for each LED lamp string; each LED lamp string comprises a narrow and long printed circuit board strip welded with a plurality of LED luminous bodies; at least one end of the narrow and long printed circuit board strip of each LED lamp string is respectively fixed and electrically connected to the driving plate, thereby forming a plane or stereo lighting device; and after the lighting device electrified, beautiful and brilliant spot pictures and texts are emitted. The LED artistic lighting device combines modern scientific and technologic elements with traditional cultural artistic elements, is more stereo and beautiful, meets the requirements for green environmental protection illumination, beautiful appearance and light art, simultaneously realizes wireless control of LED, and displays different figures and texts and light effects. The invention also provides the LED lamp string for forming the LED artistic lighting device, and a method for constructing the LED artistic lighting device.

The invention provides a photocatalytic halohydrocarbon dehalogenation conversion method which comprises the following steps: adding a photocatalyst quantum dot / rod into a solvent to obtain a solutionA; adding halohydrocarbon and an electronic sacrificial body into the solution A to obtain a solution B; utilizing a light source to irradiate the solution B and catalyzing the solution B to performhalohydrocarbon dehalogenation conversion. According to the photocatalytic halohydrocarbon dehalogenation conversion method disclosed by the invention, a nano quantum dot and a nano quantum rod are applied to dehalogenation conversion reaction of alkyl halide, alkenyl halide and alkyne halide for the first time; the reaction conditions are moderate, visible light is utilized as driving energy, a product is hydrocarbon compound, and the whole process has the advantages of environmental protection, conciseness and high efficiency. In addition, higher hydrocarbon of carbon chain growth can be generated after dehalogenation reaction, so that the method has potential application in preparation of higher hydrocarbon. According to the method disclosed by the invention, halohydrocarbon dehalogenation conversion and deuteration marking processes are jointly performed; hydrocarbon deuteration marking can be finished when a halohydrocarbon dehalogenation process is finished. The invention furtherprovides a method for performing deuteration marking on hydrocarbon.

The invention discloses a BrPhinsted acidic ionic liquid which takes multi-ammonium as cation and a preparation method thereof; the ionic liquid is one step prepared through neutralization reaction between multi-ammonium and inorganic acid or organic acid. The invention has the advantages of low cost, simple preparation, green process, and suitability for massive production. The ionic liquid has potential practical application prospect in electronic optical and photoelectric material, energy, resource and environment and life science, etc.

A catalyst for methanol or dimethyl ether carbonylation synthesis of methyl acetate is composed of copper oxide, titanium silicalite molecular sieves and transition metal oxides. The copper oxide accounts for 5-30 wt% calculated by pure copper, transition metal oxides account for 0.2-5.0 wt% calculated by elementary transition metal, and the titanium silicalite molecular sieves account for 94.8-65 wt%. The invention has the advantages of mild reaction conditions, high selectivity of methyl acetate, and good stability and long service life of the catalyst.

The invention relates to a preparation method of a multifunctional integrated porous solid material for catalytic oxidation, and belongs to the field of composite materials. The method comprises the following steps: preparing an organic ligand having a Bronsted alkaline function or capable of modifying Bronsted alkalinity, and carrying out a hydrothermal / co-precipitating reaction on the organic ligand and a transition metal source with catalytic activity to obtain the metal organic skeleton catalysis material integrating multiple catalysis functions. The material is applied in benzyl oxidation and alcohol oxidation systems with molecular oxygen as an oxygen source for the first time. The catalysis material prepared through the preparation method of the multifunctional integrated catalysis material effectively integrates a catalytic activity site with the Bronsted alkaline function, solves the problem of difficult activation of the green molecular oxygen source, and avoids the problems of difficult recovery and severe pollution of a homogeneous organic alkali needed by a catalysis system for realizing H removal of C-H bonds; and the multifunctional integrated catalysis material is used in the catalytic oxidation systems with the molecular oxygen as an oxygen source for the first time to realize establishment of high efficiency catalytic oxidation systems under alkali-free conditions.

The invention discloses a compound higher alcohol catalyst which is prepared from magnesium oxide, copper oxide and an aid M. The catalyst is prepared according to oxide mass of MgO to CuO to M beingequal to 100 to (1 to 8) to (5 to 25), and the M is one of aluminum oxide, zirconium oxide, titanium oxide, cerium oxide and silicone dioxide. The catalyst disclosed by the invention has the advantages of high conversion rate and good stability.

The invention discloses a preparation method of Curdlan oligomers. The method comprises the following steps of: fully dissolving Curdlan polysaccharide into a solvent to obtain a homogeneous solution; adding acid at a temperature in a range of 80-140 DEG C, wherein a final concentration of the acid in the solution is 0.1-10 M; reacting for 30-500 min; adding organic solvent sediments which are 3-5 times as much as the volume of reaction liquid and meanwhile, stirring and filtering to obtain a milky solid; washing the solid by the organic solvent 1-4 times to obtain the Curdlan oligomers with an average molecular weight of 340-4000 Da, which is measured by an efficient liquid phase detection after drying. The degradation efficiency of the preparation method reaches more than 85%. The Curdlan oligomers are oligomers formed by connecting glucose molecules through beta-(1->3) glucosidic bonds; the degree of polymerization (Degree of Polymerization, DP) of the Curdlan oligomers is 2-24; a molecular formula of the Curdlan oligomers is (C6H12O6)n, wherein n is equal to 2-24. The average molecular weight of the Curdlan oligomers is 340-4000 Da. The preparation method provided by the invention has a simple and controllable preparation process, short reaction time and good degradation efficiency, and is environmentally friendly and suitable for industrial production.

The invention relates to the field of biological preparation of bulk chemicals, in particular to a method for preparation of 2, 5-furandicarboxylic acid by bio-enzyme catalytic oxidation of 5-hydroxymethylfurfural (HMF). The method employs two enzymes including lipase and 5-hydroxymethylfurfural oxidase for synergistic catalytic oxidation of HMF to prepare FDCA in "one-pot process", thus realizing a green preparation process of FDCA. The technical scheme adopted by the invention uses enzymatic catalytic oxidation, is carried out under low temperature, has low energy consumption and high efficiency; the transformation process has no need of adding alkali, and the process is simpler and green; air or oxygen is adopted as the oxidant, hydrogen peroxide is unnecessary, and the economical efficiency is better. The patent involved in the invention has good industrialization prospect.

The invention discloses a preparation method of an orderly nanofiber membrane based on bacterial cellulose. The orderly nanofiber membrane is obtained by activating hydroxide radicals on surfaces of bacterial cellulose through a NaOH aqueous solution, conducting a reaction in a quaternary ammonium salt ethanol solution, and conducting absolute ethyl alcohol washing and vacuum drying on a sample. Grafting modification is conducted on bacterial cellulose through quaternary ammonium salt, fiber in a prepared bacterial cellulose membrane has a high order, performance of bacterial cellulose is kept, an excellent antibacterial property is achieved, and the orderly nanofiber membrane can be used as a biological material for being widely applied to the fields of medical antibacterial dressings, artificial skin and the like.

The invention discloses Sn-Zn-Bi-base lead-free solder alloy for soft soldering of aluminum and copper and belongs to the technical field of new material. The solder alloy comprises, by weight, 11-35% of Zn, 16-34% of Bi, 0.01-2% of one or both of Al and Ni or 0.01-0.5% of one or both of P and RE, and rest of Sn. The solder alloy has excellent wettability on both aluminum baseboard and copper baseboard and can be well combined with an aluminum interface and a copper interface, and accordingly the soldered joint has excellent mechanical property; such dissimilar metals as aluminum and copper can be soldered directly, and the Sn-Zn-Bi-base lead-free solder alloy can also be used for the soldering between aluminum and aluminum; the Sn-Zn-Bi-base lead-free solder alloy for soft soldering of aluminum and copper is simple in technique, is low in cost, and is more suitable for the aluminum-copper soldering or aluminum-aluminum soldering than the prior solder.

The invention relates to a natural pigment curcumin product and a production process thereof, and belongs to the technical field of agricultural product deep processing. Turmeric rhizomes are used as raw materials; an eutectic solvent prepared from natural ingredients is an extracting agent; the curcumin is highly and selectively extracted by utilizing the characteristic of the natural eutectic solvent; the extraction efficiency is improved through ultrasonic treatment. After the extraction, water is used as a solvent; the curcumin is selectively precipitated by an anti-solvent method; sediments are subjected to centrifugation and vacuum drying; the high-purity natural curcumin product is prepared. The method has the advantages that the nontoxic and natural eutectic solvent and the water are used as the extracting agent and a precipitating agent, the production process is simple, efficient, safe and green; the defect that the traditional curcumin production needs a large number of noxious organic solvents and the complicated column separation process is overcome.

The invention discloses a long footed chicken breeding and forest raising method and belongs to the technical field of breeding. The method includes the steps of breed selection, egg laying, incubation, raising in a thermal house, constant-temperature raising, normal-temperature captivity, forest stocking and isolation. According to the technical scheme, the requirements on natural, green and healthy food can be met by selection of good breeds, scientific egg laying, incubation, raising and captivity according to local climate and geological conditions, forest stocking according to the active feature of long footed chicken, regular and quantitative supplement of foodstuff, complete feed abandon after certain days. Mountainous land advantages and forest land resources are fully used, long footed chicken yield is improved, large-scale breeding is realized, breeding survival rate is increased, breeding cycle is shortened, and meat quality and nutritional value of long footed chicken are guaranteed and even improved.

The present invention relates to a nostoc sphaeroids kutz sweetmeat and a production method thereof, wherein the nostoc sphaeroids kutz sweetmeat is prepared from the following raw materials by weight: 50-70 parts of fresh nostoc sphaeroids kutz, 25-45 parts of dendrobium candidum, 5-10 parts of nostoc sphaeroids kutz polysaccharide dry powder, 10-20 parts of fruit juice powder, and 10-25 parts of white sugar or rock candy. The production method comprises: decocting dendrobium candidum and nostoc sphaeroids kutz polysaccharide dry powder to obtain an extraction liquid; adding fruit juice powder and white sugar or rock candy to the extraction liquid according to a certain ratio, uniformly mixing, adding fresh nostoc sphaeroids kutz being subjected color protection hardening, and impregnating; and drying at a temperature 35-40 DEG after completing the impregnating so as to obtain the product. According to the present invention, the nostoc sphaeroids kutz sweetmeat has advantages of complete nutrition and excellent taste, and has health functions of invigoration, health enhancing, aging resistance, oxidation resistance, antitumor, and the like; and the production method is simple and easy to perform, and the activities of the phycobiliprotein and the polysaccharide of the nostoc sphaeroids kutz cannot be damaged to the greatest extent.

The invention relates to an enzyme treatment and recycling method for protein fibers in waste textiles. The provided method aims to effectively realize the recycling of the protein fibers in the waste textiles. According to the technical scheme provided by the invention, the enzyme treatment and recycling method for the protein fibers in the waste textiles sequentially comprises the following steps: (1) continually carrying out following treatment steps on the waste textiles containing the protein fibers; (2) adding oxidordeuctase into dyed textiles which are directly treated by a direct dye, an active dye, an insoluble azo pigment or a cationic dye, and carrying out pre-treatment; (3) adding protease into the waste textiles treated by the step (2), and carrying out selective degradation on the protein fibers; and (4) carrying out solid-liquid separation on a substance treated by the step (3); carrying out ultra-filtration separation on the protease in a degraded solution and reutilizing, wherein a degraded product is used for producing relative products; and physically recycling the residual solid textiles.

The invention discloses a catalyst for used in synthesis of methyl formate. The molar ratio of Cu to Zr to K is 1:(0.3-12):(0.1-6). A precipitation method, a co-impregnation method and a stepwise soaking method are adopted for preparing the catalyst. The catalyst has the advantages of high stability and high selectivity of methyl formate.

The invention is a manufacturing technology of untwisted gauze, which belongs to the field of fabric and mainly includes the following steps: twisted yarns are reversely enwound with polyvinyl alcohol to form twisted yarns; the twisted yarns are taken as weft yarns and normal yarns are taken as twist yarns to carry out weaving and form grey cloth; the grey cloth is placed into water for boiling-off, twist breaking and washing. The twist yarns play the roles of supporting and anti-pulling in fabric. Simultaneously, untwisted yarns are in the shape of ribbon sections in the fabric and becomes flat after being compressed, so that the coverage area of the fabric is enlarged. Therefore, the fabric with light weight looks thick, tight and fluffy, so as to show the characteristics of softness, warmness, lightness and transparency of the untwisted gauze like silky wool fabric.

The invention provides a novel environment-friendly graphene oxide film and a preparation method thereof, the preparation method comprises the following steps of: S1, mixing graphene oxide and a solvent according to a certain proportion, and performing ultrasonic treatment to obtain a graphene oxide dispersion liquid; S2, separating large-thickness graphite sheets which are not peeled off to obtain a supernatant liquid which is a thin-layer graphene sheet dispersion liquid; S3, centrifuging the thin-layer graphene sheet dispersion liquid to obtain a large-size thin-layer graphene nano sheet; S4, carrying out ultrasonic treatment to obtain a large-size thin-layer graphene nano-sheet dispersion liquid; S5, compounding the large-size thin-layer graphene nano-sheet dispersion liquid onto the surface of a high molecular polymer filter film or an inorganic filter film to form a film material with a graphene oxide separation layer. The preparation method of the novel environment-friendly graphene oxide film adopt the large-size thin-layer graphene nano sheets to prepare the graphene oxide film material, the process is simple and easy to implement and is environment-friendly, and the thickness of the film material can be directly adjusted and controlled by adjusting the usage amount of raw materials.

The invention relates to an enzyme treatment and recycling method for cellulosic fibers in waste textiles. The provided method aims to effectively realize the recycling of the cellulosic fibers in the waste textiles. According to the technical scheme provided by the invention, the enzyme treatment and recycling method for the cellulosic fibers in the waste textiles sequentially comprises the following steps: (1) qualitatively determining the variety of fibers in the waste textiles and the variety of dyes; (2) adding oxidordeuctase into dyed textiles which are directly treated by a direct dye, an active dye, an insoluble azo pigment or a cationic dye, and carrying out pre-treatment; (3) adding cellulase into the waste textiles treated by the step (2) and carrying out selective degradation on the cellulosic fibers; and (4) carrying out solid-liquid separation on a substance treated by the step (3); carrying out ultra-filtration separation on the cellulase in a degraded solution and reutilizing, wherein a degraded product is used for sugar fermentation to produce relative products; and physically recycling the residual solid textiles.

The invention discloses a compound fermentation blueberry health-care wine and a production technology thereof. Blueberry, blueberry leaves, medlar and bran are selected as raw materials to produce the compound fermentation health-care wine by a compound fermentation production technology, wherein the compound fermentation liquid comprises the following components in proportion: 17-23% of blueberry leaf extracting solution, 6-10% of blueberry juice, 10-15% of medlar juice and 55-65% of bran saccharification liquid. The product is high in nutrient value, basically preserves the natural nutritional components in the blueberry and the blueberry leaves, contains nutrient substances such as anthocyanin and vitamin which are necessary to a human body, and has the effects of improving eyesight, eliminating eye fatigue, nourishing the skin, moistening lung, tonifying spleen and nourishing stomach, delaying cranial nerve ageing, preventing capillaries diseases, enhancing cardiac function, preventing senile dementia, fighting fatigue and the like. The compound fermentation blueberry health-care wine has the advantages that 1, an ultrasonic assisted extraction technology is adopted, and the extraction rate of the active substances is high due to the fermentation effects of microorganisms; 2, the nutrient level of the blueberry health-care wine is improved by virtue of compound fermentation of the blueberry, the blueberry leaves, the medlar and the bran; 3, the product is high in clarity, good in sterilization and impurity removal effects, and small in nutrient loss of product by adopting a microporous membrane filtering production technology, and the traditional pasteurization is replaced.

A catalyst for synthesizing methyl acetate through methanol carbonylation is composed of HZSM-5, copper oxide and an additive of a metal M oxide, wherein a mass ratio of the HZSM-5, copper and M is 100:3-15:0.2-5. The catalyst is simple in a preparation method. The preparation method is green. The catalyst is high in selectivity of the methyl acetate and is good in stability.

The invention discloses an integrated energy supply system for an agricultural greenhouse and a power supply method. The temperature of the greenhouse is automatically adjusted, heat required for maintaining the temperature of the greenhouse is provided, or the temperature of the greenhouse is reduced. According to the integrated energy supply system and the power supply method, a solar heat collection and wind power stirring heating combination effect is used for providing heat to a biogas generator, and the temperature of high-efficiency fermentation of a biogas raw material is maintained; and chemical energy released by biogas combustion is used for driving an absorption type heat pump to realize heating and cooling of the greenhouse, the utilization rate of renewable clean energy and the greenhouse heating efficiency are improved, a comprehensive energy supply operation strategy is proposed, the aim of adjusting the temperature of the greenhouse in different seasons and different weather conditions is achieved, and the needs for agricultural greenhouse energy supply are met.

The invention provides an industrial automatic beading machine, comprising a frame. A transition plate is disposed on the frame. A motor is connected under the transition plate. A turnplate is connected above the transition plate. A rotating shaft is connected above the turnplate. An enclosure is provided outside the turnplate and the rotating shaft; the top of the enclosure is provided with an open cover plate. One end of a guide wire is wound to the rotating shaft, and the other end thereof is fed out from an opening of the enclosure. A moving shift plate is disposed on the rotating shaft, and a spring is disposed between the moving shift plate and an internal cylindrical face of the rotating shaft. A rotating knob is provided above the rotating shaft, and a ratchet wheel is provided below the rotating knob and is in staggering fit with the moving shift plate. The industrial automatic beading machine is simple in structure; the turnplate is driven by the motor without manual intervention, thus cost is saved, production efficiency is improved, operating is easy, and machine is suitable for processing beads of different sizes; With the modular design, the internal parts are replaceable, the requirements on greenness and replaceability are met, and mounting and self-inspection are facilitated.

The invention discloses a production method of wet-spun flax palace. The production method comprises the following steps of preparation of slivers to be dyed, sliver dying, sliver tidying after dying, sliver spinning for roving forming, roving scouring and bleaching, spinning, radio frequency yarn drying and automatic twining, wherein spinning is achieved through a spinning frame. Preparation of the slivers to be dyed comprises the following procedures of flax blending, slivering, pre-drawing, slubbing and curling. The sliver dying sequentially comprises the procedures of pre-processing, dying and post-processing. The sliver tidying after dying sequentially comprises the procedures of sliver spin-drying, drying, moisture regaining and strip forming. The production method of the wet-spun flax palace realizes synthesis of yarn in two or more colors and satisfies the psychological requirements that people pursue the aims that a textile article is natural, environmentally friendly, novel and peculiar; through blending, colored latent lines which are staggered longitudinally and transversely are formed on the surface of the textile and the unique color mixed style of the palace is formed.