51results about How to "Small scale of production" patented technology

The invention relates to a cellulose base/Fe3O4 composite adsorption material used for removing arsenic in water and a preparation method thereof. According to the invention, with fibers or powder of natural cellulose or fibers of a cellulose derivative as a cellulose matrix material for the composite adsorption material, in an alkaline water system provided by ammoniacal liquor, Fe3O4 particles are loaded on the surface of the cellulose matrix material through in-situ co-precipitation, and the loaded Fe3O4 particles enable the obtained cellulose base/Fe3O4 composite adsorption material to have magnetism and to be easily removed from water, and allow harmful ions like arsenate ions and arsenite ions in water to be absorbed. Compared to arsenic removal materials in the prior art, the invention has the following characteristics: a natural biomass is used as an adsorption carrier, and the natural biomass is cheap and highly efficient, enables the content of arsenic in water to be substantially lower than a national standard and is easy to remove and convenient to use.

The invention relates to a cellulose base adsorption material used for removing arsenic ions and fluoric ions in water and a preparation method thereof. In the invention, natural cellulose or fibers of cellulose derivatives with the diameter of 10nm-100mu m is taken as matrix material for the absorption material; polyolefin containing an amino group is grafted on the surface of the cellulose matrix material, thus the surface of the cellulose matrix material contains the amino group; and electrostatic attraction can be realized between the contained amino group and arsenate anions, arsenite anions and fluoric ions in water, thus the harmful ions, namely the arsenate anions, arsenite anions and fluoric ions in water can be removed. Compared with the arsenic and fluorine removing material in the prior art, the material provided by the invention has the advantages that the natural cellulose or cellulose derivative is taken as an absorption carrier, the fluoric ions, arsenate anions and arsenite anions in water can be simultaneously absorbed, and the contents of the arsenic and fluorine in water can be far less than the national standards.

The invention discloses a high-yield reactor, and a production method and an application thereof. The high-yield reactor comprises a bioreactor and an ATF perfusion apparatus connected with the bioreactor. The protein production method using the high-yield reactor comprises the following steps: 1, connecting the ATF perfusion apparatus with the bioreactor, and completing an offline disinfection or online disinfection program; 2, inoculating seed cells to the bioreactor to a work volume according to the density, and sampling and detecting the number and biochemical indexes of the cells each 24h; 3, starting the ATF apparatus program for perfusion culture when the density of living cells increases to a certain density; and 4, collecting a culture solution in the bioreactor or filtered through hollow fibers in the ATF perfusion apparatus, and purifying to obtain required protein products. The high-yield reactor has the advantages of great shortening of the technological exploitation time of monoclonal antibody or fusion protein expression, production cost reduction, benefiting for the project registering and reporting and the project period shortening, and acceleration of the accomplishment application speeds of the biopharmacy industry.

The invention relates to a cellulose base adsorbing material for removing cations of heavy metal in water and a preparation method of the cellulose base adsorbing material. Natural cellulose or cellulose derivative fiber with the diameter of 10nm-100mum is adopted as a matrix material of an adsorbing material; polyolefin containing a carboxyl group is grafted on the surface of the matrix material of the cellulose, so that the surface of the matrix material of the cellulose is provided with the carboxyl group; and electrostatic attraction occurs on the carboxyl group and the cation of the heavy metal, so that Cd<2+>, Cr2<+>, Cu<2+>, Hg<2+>, Ni<2+>, Pb<2+> and/or Zn<2+> and other harmful cations in water are removed. Compared with adsorbing materials for the cations of the heavy metal in the prior art, the cellulose base adsorbing material adopts the natural cellulose or the cellulose derivative as an adsorption carrier, so that the cost performance is higher, and the content of the cations of the heavy metal in the water is greatly lower than that of state-specified standard.

The invention relates to a method for extracting oil by swelling and pressing low oil content oil seeds and is characterized by comprising the following steps: 1) clearing: impurities are removed from the oil seeds; 2) quality-adjusting: the temperatures and water contents are adjusted for the oil seeds; 3) the oil seeds are pressed and swelled; 4) enzyme killing and drying are carried out for the pressed and swelled oil seeds; 5) most of the oil is pressed from the dried oil seeds; the oil seeds can be crushed and then the quality adjusting can be done after the clearing of the step 1); after the step 2) of quality-adjusting, the bloom rolling can be done to the oil seeds and then the pressing and swelling can be done. The method adds the procedures of pressing and swelling before the traditional one time pressing and obtains pure physical pressed oil with high quality and pressed cakes which can be directly used for feed processing, which increases the processing amount of a press and reduces the power consumption and wearing. The method is mainly used for producing small-scale pressed oil and pressed cakes with good qualities and raw materials of low oil content oil seeds such as soybeans and rice bran.

The production method of soft magnetic alloy powder includes the following steps: smelting soft magnetic mother alloy, making molten metal be quickly coagulated into crystalline sheet alloy, breaking the sheet alloy to obtain alloy powder, and making the alloy powder undergo the processes of activation, annealing treatment and passivation treatment. Said soft magnetic alloy powder is low in oxygen content, stable in property and good in magnetic powder core performance.

The invention relates to a non-shrinkage cement-based roofing material, belonging to the technical field of building materials. The roofing material is formed by mixing cement, activated and inert mineral admixtures, plaster, expanding agents, glass fibers and organic synthesis fibers, chemical admixtures, sand and the like based on a certain proportion. At the construction field, right amount of water is added and stirred evenly, and is constructed by hand spreading or spraying. Regarding constructed roofing, the thickness of the waterproof layer is 35-50mm and the area of the separate bin is 50-300m. The non-shrinkage roofing material has high strength, good volume stability and excellent waterproof property, can be used for thin layer construction and is convenient, fast and flexible in construction. The roofing material is low in cost, convenient in production and changeable in production scale, and is applicable to the requirements of construction of villages and small towns. In addition, the roofing material utilizes a substantial proportion of industrial residues, thus not only reducing cost but also conducing to environment protection.

The invention relates to a method for extracting metallic thallium from thallium-containing slag, and belongs to the vacuum metallurgy technology field. The thallium-containing slag is adopted to extract the metallic thallium in a vacuum firing furnace based on three-step distillation; the vacuum degree is control between 8 to 40Pa, and the time is 30 to 60 minutes; three-step distillation temperatures respectively range from 450 to 600 DEG C, from 900 to 1100 DEG C, and from 700 to 850 DEG C; the purity quotient of the thallium which is extracted in the vacuum firing furnace can reach more than 99.9 percent; the coefficient of recovery of the thallium can reach more than 90 percent.

The invention discloses a method for producing electrolytic nickel by leaching chemically precipitated nickel sulfide with pure oxygen, comprising the following steps: mixing and pulpifying chemically precipitated nickel sulfide and high pressure leachate based on the mass ratio of (8-10):1, performing one-stage atmospheric pressure leaching on the pulpified material, removing impurities from one-stage leachate and electrolyzing, producing electrolytic nickel and anolyte, mixing one-stage leached residue with anolyte for secondary pulpifying, further leaching by two-stage high pressure, and returning the obtained leached filtrate to one-stage pulpifying for utilization. The process technique has widely utilized resources, simple technical route, small investment, low energy consumption, no environment pollution, high leaching rate of nickel and cobalt, simple and convenient operation and low production cost, and provides an effective and economical way for producing electrolytic nickel in nickel sulfide concentrates.

The invention discloses natural seasoning and a preparation method of the natural seasoning, and belongs to the technical field of seasoning processing. The seasoning comprises natural spice and Chinese herbal medicines such as pepper, anise, fructus amomi, myristica fragrans, cinnamon, galangal, syzygium aromaticum, amomum tsao-ko, fennel, rhizoma zingiberis, rhizoma kaempferiae, white pepper, radix angelicae, pericarpium citri reticulatae and elecampane. The natural seasoning is prepared through food high and new technologies of microwave drying, aseptic packaging and the like. The seasoning is reasonable in compatibility and can be used for cooking, cold mixing and food industrial production. The seasoning is aromatic and palatable and has the effects of invigorating stomach and improving digestion, maintaining beauty and keeping young, regulating the blood sugar level, reducing blood fat, cooling down to dissipate the dampness and building the body.

The invention belongs to the field of cell and gene engineering, genetic modification and therapeutic recombinant protein industrial production, and particularly relates to GS (glutamine synthetase) gene specific identification crRNA and application thereof. DNA (deoxyribonucleic acid) sequences identified by the GS gene specific identification crRNA are selectively DNA sequences shown as one of sequences SEQ ID NO.1-SEQ ID NO.8. The GS gene specific identification crRNA and the application have the advantages that GS genes of diversified cells can be specifically identified by the GS gene specific identification crRNA, the GS gene specific identification crRNA is wide in applicability, and integral procedures can be implemented easily and efficiently; the target protein expression quantities of cells without the GS genes can be greatly increased on the basis of imported exogenous carriers as compared with wild host cells, and accordingly required-to-be-inputted labor, material resources and financial resources for screening protein expression cell strains can be reduced; the GS genes are knocked out, and accordingly the industrial production cost can be reduced; the cells without the GS are used as host target gene expression cells, other chemical substances can be omitted in procedures for producing the cells, and accordingly the production safety can be improved.

A biomass-based adsorption material used for removing harmful anions from water and a preparing method thereof are disclosed. The surface of the biomass-based adsorption material is loaded with iron-containing inorganic magnetic particles and/or aluminum-containing inorganic particles. The main raw material of the biomass-based adsorption material is agriculture waste. The harmful anions include F<->, AsO<2><-> and AsO<4><3->. Compared with materials adsorbing the harmful anions at present, the biomass-based adsorption material adopts the biomass agriculture waste as an adsorption substrate, and is simple in process, convenient in operation and suitable for treating water polluted by a plurality of harmful anions. A production scale can be large or small, thus facilitating popularization in remote rural areas and individual users, and allowing the biomass-based adsorption material to be suitable for large-scale water treatment.

The invention discloses an inertial picker including an operating rod, a transmission device mounted on the operating rod, a gripper which is mounted on an upper end of the operating rod and can graspand loosen a branch and a first driving component. The transmission device comprises a bracket, a driving crank, a bracket connecting rod, a driven crank, a connecting rod and a sliding block. The bracket is fixedly mounted on the operating rod, two ends of the driving crank are hinged to the bracket and the bracket connecting rod, the other end of the bracket connecting rod is hinged to the driven crank, and the other end of the driven crank is hinged to the bracket. Two ends of the connecting rod are hinged to the driven crank and the sliding block, the sliding block is slidingly installedon the bracket, the gripper is fixedly installed on the sliding block, and the first driving component can drive the driving crank to rotate around a hinge shaft of the bracket and the driving crank.The inertial picker provided by the invention is suitable for fruit picking of orchards with small scale, diverse planting modes and dispersed cultivation.

The invention discloses a tetrabutyl tin preparation method. The preparation method comprises the following steps: adding magnesium powder and an ether solvent into a reactor with a stirring and refluxing device, starting to stir and heat till refluxing; then adding a small quantity of chlorobutane and a YF-017 catalyst, slowly adding a mixed solution of chlorobutane and anhydrous tin tetrachloride dropwise, conducting a refluxing reaction to the end after finishing adding; cooling to the normal temperature, adding hydrochloric acid while stirring, then allowing standing still for layering; releasing an aqueous phase on the lower layer, distilling an organic phase at the normal pressure, changing to perform reduced pressure distillation after the solvent is completely distilled, and collecting a fraction of 148-150 DEG C under the condition of the vacuum degree of minus 650 Pa, to obtain tetrabutyl tin. A small quantity of catalyst is added into a one-step reaction device, the Grignardreaction is started immediately, the heat produced in the Grignard reaction in the first step is rapidly absorbed by the alkylation reaction in the second step. Therefore, the phenomenon of materialspraying of the reaction is avoided, and safety in the industrial production is guaranteed.

The invention discloses a preparation process of a cotton woven fabric with a strong antibacterial effect. Three parts of raw materials, namely a blending weaving raw material, an antibacterial agent and a functional auxiliary agent are used, wherein the blending weaving raw material comprises corn fibers, cotton fibers, polyamide fibers, cashmere fibers, chemical fibers, linen fibers, triacetate fibers, mint fibers, chitosan fibers and polylactic acid fibers; the antibacterial agent comprises a honeysuckle chlorogenic acid solution, a nano-silver antibacterial solution, a zinc oxide solution, an ammonium dihydrogen phosphate solution and a lithium carbonate solution; and the functional auxiliary agent comprises a dispersing agent and a modifier. According to the present invention, the prepared cotton woven fabric has the characteristics of strong antibacterial activity, health and sanitation during the use process, small production scale, low production cost, and improved product performance.

The invention discloses exclusive bacteria and a technology for removing organic sulfur in high sulfur coal mine through the exclusive bacteria. The exclusive bacteria have a class name of Bacillus subtilis Retech Organosulfur-I, are preserved in the China general microbiological culture collection center in the microbiology institute with the address of No. 3, Beichen West Road, Chaoyang District, Beijing, China on the collection date of May 28, 2015, and has a preservation number of CGMCC No. 10933. The bacillus can degrade the organic sulfur in the coal mine under acidic and aerobic conditions, and through combination of the bacillus and the high efficiency desulfurization mixed strain Retech TS-I, inorganic sulfur is removed and effective total sulfur removal of high sulfur coal mine is realized. Compared with the conventional physical and chemical methods, the technology has the advantages of mild conditions, low cost and no harmful gas emission, and has a wide application prospect in the field of coal mine desulfurization.