83results about How to "Process parameters are easy" patented technology

Belonging to the lithium ion battery material technical field in the field of new energy materials, the invention in particular relate to a nanorod-like lithium manganese phosphate anode material and a preparation method thereof. The method includes: taking ethylene glycol and water as the reaction solvent, synthesizing lithium manganese phosphate by a solvothermal technique, and then mixing the lithium manganese phosphate with sucrose to synthesize a carbon-coated lithium manganese phosphate anode material. The method provided by the invention has the characteristics of simple reaction system, easily controllable process parameters, short process, low preparation cost, and easy mass production, and further expands the research work of the lithium manganese phosphate preparation field. The product obtained in the invention has the advantages of high purity, small size, good particle dispersibility, thus being conducive to effective contact of an electrode material and an electrolyte solution, shortening the lithium ion diffusion distance, and improving the rate performance of the lithium ion battery. The lithium manganese phosphate anode material has a low carbon content, and a small amount of carbon coating can improve the material electronic conductivity and also ensures that the lithium ion battery with the product as the anode material can acquire high energy density.

The invention discloses a bacillus subtilis fermenting method with a high rate of maturing gemma and belongs to the field of microorganism fermentation engineering. In the method, the target products are produced by activation of bacillus subtilis and two-step fermenting culture. The method comprises the following steps of: inoculating the activated bacillus subtilis first, performing fermentation culture for 8 to 14 hours under the conditions that: the culture temperature is between 35 and 38 DEG C, the cylinder pressure is between 0.02 to 0.06 Mpa, the ventilation rate is 1:0.5-1:1 and the stirring revolution is between 150 and 200 rpm to obtain seed bacterial solution, and inoculating the seed bacterial solution and culturing for 20 to 36 hours to obtain bacillus subtilis liquid products with a high rate of maturing gemma. In the method, the components of the culture medium can be easily obtained and have low price, process parameters are simple, the fermentation period is short, the obtained bacillus subtilis is high in number of living bacteria as well as rate of maturing gemma, the rate of maturing gemma reaches more than 3.0*10<9>CFU/ml, and the number of maturing gemma and the quality of the products are obviously improved.

The invention relates to nanometer skutterudite compound thermoelectric material preparation method, i.e. combining high-energy ball milling method with discharging plasma sintering for preparing nanometer skutterudite compound thermoelectric material. Cobalt powder and antimony powder available in the market are used as material, and skutterudite compound CoSb#-[3] is manufactured by solid phase reaction method, then high-energy ball wet milling is adopted, controlling material ball ratio, ball diameter grading, ball mill rotate speed and time, obtaining average grain diameter 50nm powder thermoelectric material, at last nano powder obtained is poured into mould, which is placed in discharging plasma sintering apparatus, obtaining mean crystalline grain size 100nm, high compactness degree,high performance CoSb#-[3] nanocrystalline thermoelectric material. The inventive method adopts nano powder as sintering material, and the discharge plasm sintering temperature is low, which is energy-saving and time-saving, being suitable for industrialized production.

The invention relates to a SnO2/TiO2 composite nanofiber photocatalyst and a preparation method thereof, and belongs to the technical fields of macromolecular materials and photocatalysis. SnO2/TiO2 composite nanofibers prepared by the method are used as a photocatalytic material, the problem of low separation efficiency of a titanium dioxide photon-generated carrier is solved, and the stability of a photo-generated electron-hole pair is increased, so that the photocatalytic activity of titanium dioxide is improved. According to the method, the composite nanofibers are obtained by directly using an electrostatic spinning technology and through calcination in air, and a sol-gel technology with multiple influencing factors is not introduced. The process of preparing the composite nanofibers is optimized, and the adjustment of process parameters is simplified. The material prepared by the method is used as the photocatalytic material, the photocatalytic activity of the material is far higher than that of pure titanium dioxide, and the requirement and development direction of a new-generation titanium dioxide photocatalytic material are met.

The invention discloses a new technology for treating coking wastewater and wastewater from coal chemical industry, which comprises the following steps of: (1) pretreatment: removing oils, suspended solids and the like in water by adjustment, oil separation, air flotation, filtration and the like; (2) resin adsorption: adsorbing the wastewater treated by the step (1) by use of a resin adsorption tank; (3) air stripping: treating the wastewater obtained by the step (2) by use of an air stripping tower, and removing most of COD and NH3-N in water by the steps (2) and (3); and (4) treating the wastewater of the step (3) through biological treatment, and further removing COD and NH3-N in water to optimize the whole treatment system, wherein the biological treatment comprises anoxic and two-level aerobic biological treatment. The COD removal rate of the method is over 93%, the removal rate of NH3-N is over 96%, and the COD of the yielding water is about 100mg/L, thereby reaching the second-level discharge standard of GB8978-1996 and approaching to the requirements of the first-level discharge standard; and the NH3-N is lower than 10mg/L, thereby reaching the first-level discharge standard of GB8978-1996.

The invention provides a punching forming method of a tee joint half-tube part and a die. The punching die comprises a lower die body, an upper die body and a pressing block, wherein the lower die body is provided with a concave face, a receding groove, a guide column and an ejection rod through hole, the pressing block corresponds to the receding groove in shape, the pressing block is provided with a first guide hole corresponding to the guide column, the upper die body is provided with a convex face corresponding to the concave face, the convex face is provided with a second guide hole corresponding to the guide column, an unfolded rough material is arranged between the convex face of the upper die body and the upper surface of the pressing block, and the part is formed after the upper die body and the pressing block press the rough material and die closing is carried out.

The present invention provides one kind of slow released dry azithromycin suspension and its preparation process. The medicine of the present invention has slow released azithromycin microsphere prepared through spray drying process, and capsule wall material for coating azithromycin medicine made of viscous medicinal polymer material or insoluble medicine polymer material, such as acrylic polymer, gelatin, Arabic gum, carboxymethyl cellulose salt, etc. and preferably of acrylic polymer. The slow released dry azithromycin suspension has improved administration compliance and convenience, and high bioavailability.

The invention discloses a production process of superfine powdered nickel acetate, which comprises the following steps: synthesis: reacting glacial acetic acid and basic nickel carbonate under the condition of stirring according to the molar ratio, adding the glacial acetic acid and the basic nickel carbonate in batches, and continuously reacting until all substances are fully reacted, wherein the adopted industrial firstclass glacial acetic acid has the content of over 99.5%, the adopted basic nickel carbonate has the Ni content of 19+/-1%, and the molar ratio of the basic nickel carbonate to the glacial acetic acid is 1:1.1-1.5; dehydration: performing solid-liquid separation on the well synthesized nickel acetate, and recycling the mother liquor; and drying to obtain the superfine powdered nickel acetate. The invention has simple production processes, easily controlled process parameters, small environment pollution, high production efficiency, high one-time recovery, no special requirements for production equipment, low labor intensity and less process consumption; and compared with the existing nickel acetate powder in the market, the obtained product has obviously improved quality, stability, reliability and good process repeatability which is proved by large-scale industrialized production.

The invention relates to a novel method for quickly preparing a high-performance Mg2Si0.3Sn0.7-based thermoelectric material, which comprises the following steps of: 1) weighing according to the stoichiometric ratio of each atom in a thermoelectric material Mg2(1+0.08)(Si0.3Sn0.7)(1-y)Sby (0<=y<=0.025), uniformly mixing the raw material powder in a mortar, and pressing the uniformly mixed powder into a block; 2) putting the obtained block into a graphite crucible, and performing fusion spin-throwing in melt spin-throwing quenching equipment to obtain a Mg2(Si0.3Sn0.7)(1-y)Sby strip product; and 3) grinding the Mg2(Si0.3Sn0.7)(1-y)Sby strip product into powder, and performing discharge plasma activation sintering to obtain the high-performance Mg2Si0.3Sn0.7-based thermoelectric material. The method provided by the invention has the characteristics of energy saving, short preparation time, simple technological parameters and the like; and the thermoelectric merit figure ZT of the obtained block can reach 1.3.

The invention discloses a purification process of desulfurization gypsum and gypsum raw materials purified through the process, which solve the problems that the existing purification process of desulfurization gypsum has large energy consumption and complex process, and the purified product has low purity. The purification process of the desulfurization gypsum comprises the following steps of material extracting, grinding and screening, primary ball-milling, scouring, flotation, clarification, and secondary ball-milling; and integrates physics, chemistry, mineral separation, powder preparation and other processing technologies into a whole. The product prepared by the process has high quality, and has the whiteness reaching to 93-95 percent. The purification process of the desulfurization gypsum and the gypsum raw materials purified through the process have the advantages that the process is simple, the practicability is strong, the energy consumption is low, the impurities extracted from the gypsum are fewer, and the granularity of the product is more uniform.

The invention discloses a method for culturing bacillus subtilis through high-density fermentation, belonging to the field of microbial fermentation engineering. The method is used for increasing the thalli yield and spore rate of the bacillus subtilis. The method comprises the steps of activating the bacillus subtilis and performing two-step fermentation culture to produce a target product. The method has the advantages that the components of a culture medium are readily available and cheap, the process parameters are simple, the fermentation period is short, the cell biomass of the obtained bacillus subtilis can reach over 9*10<9>cfu/ml, and the spore rate is over 90%. The quality and stability of the product are significantly improved.

A nanocrystalline thermoelectric semiconductor material amorphous crystallization production method is provided, compriseing the stepss of: first adopting high-frequency heating and obtaining uniform alloy melt at 1100 DEG C, then cooling smelt to get thin strip or filament shaped amorphous sample using liquid phase quenching method, cooling speed being 10<5>-10<6> DEG C/sec, grinding amorphous sample and place in mould, placing mould in discharge plasm fast recrystallization and densification sintering apparatus, recrystallization and densification temperature being 600 DEG C, pressure 30Mpa,time 7-8min, obtaining high purity, average mean crystal grain size 70-80nm,uniform crystalline grain, high performance block nanocrystalline thermoelectric semiconductor material. The invention provides a technology for scale preparation of block nanocrystalline thermoelectric semiconductor material.

The invention discloses a hollow slow-release microsphere used for loading medicine and a preparation method thereof, and belongs to the technical field of medical slow-release microspheres. The method comprises the steps that an emulsification-crosslinking method is adopted to coat a shell-layer polymer material on the surface of a polystyrene microsphere to obtain the core-shell structure microsphere with the polystyrene microsphere as the core and with gelatin, sodium alginate tech grade, chitosan and polylactic acid as the shell, then the core polystyrene microsphere is immersed, dissolvedand removed through tetrahydrofuran, crosslinking and solidification are carried out on the microsphere to obtain the hollow slow-release microsphere, then the medicine is loaded on the hollow-structure microsphere, and the drug loading capacity of the medicine is greatly increased.

The invention discloses a process for preparing cryolite by using HF (hydrogen fluoride) waste liquid and cryolite prepared through the process. By the process, the cryolite is prepared by a series ofprocedures including liquid selection, adjustment of acidity and alkalinity, preliminary stirring, preliminary filtering, material adding, secondary stirring, secondary filtering, washing, and drying. The process is simple and convenient to operate and realize; furthermore, process parameters of each step are simple; by integration of physical and chemical treatment processes, the process is highin operability; the whole process is higher in operability, higher in safety coefficient and lower in energy consumption; the prepared cryolite can meet the quality standard; furthermore, a feasiblemeasure is provided for treatment of HF waste liquid, so that aims of treating wastes by wastes and turning wastes into treasures are fulfilled; the waste HF does not generate waste CaF2 anymore, andthe aims of industrial discharge reduction, resource recycling, green technology and reclamation of the wastes are completely fulfilled; the process has very important economical and social benefits.

The invention provides a complete residual compressive stress straightening device and technology for a crankshaft. The device and technology solve the technical problems that after an existing crankshaft finished product is accurately ground, a straightening technology is required, cold straightening is not allowed, press rectification cannot be conducted on a press machine, either, and therefore tensile stresses can be formed on the surfaces, opposite to loading force, of the circular bead positions at the two ends easily, the original fatigue strength of the crankshaft is lowered, and cracking can happen easily in the work running process of an engine. The complete residual compressive stress straightening device is provided with an upper rolling swing arm and a lower rolling swing arm. One end of the upper rolling swing arm and one end of the lower rolling swing arm are hinged together through an open pressurization device, and the other end of the upper rolling swing arm is provided with an upper rolling part. The upper rolling part comprises an upper rolling wheel, and the upper rolling wheel is connected with the upper rolling part in a rotating mode. The other end of the lower rolling swing arm is provided with a lower support rolling part. The lower support rolling part comprises lower support roller wheels, and the lower support roller wheels are connected with the lower support rolling part in a rotating mode. The complete residual compressive stress straightening device and technology can be widely applied to correction happening when radial run-out of the crankshaft is out of tolerance.

The invention discloses a one-key kiln baking method and system used for a continuous type kiln. The method comprises the steps that the continuous type kiln is divided into multiple temperature areas, according to process parameters or a kiln baking curve input by a user, the kiln baking process of each temperature area generates a corresponding instruction group set, each instruction group set comprises multiple groups of instructions arranged according to the timing sequence, each group of instructions comprises the operation that the temperature area is subjected to temperature rise to thepreset target temperature according to the preset kiln baking rate and the temperature continues the preset heat preservation time; the instruction group sets corresponding to the temperature areas are stored in a storage area of a control center; when a user clicks one-key kiln baking, the control center calls multiple instruction group sets, multiple groups of instructions in each instruction group set are sequentially executed according to the timing sequence, and a corresponding execution unit of each temperature area is controlled to carry out kiln baking. The kiln baking effect is better, the automation degree is higher, and reliability is higher.

The present invention discloses coarse particle nickel acetate. The nickel acetate is characterized in that is pale green crystals, has nickel acetate content of greater than 99.0%, an average particle size of not less than 3mm, cobalt content of no more than 0.005%, iron content of no greater than 0.0005%, zinc content of no more than 0.0005%, insoluble content of no more than 0.002%, sulfate content of no more than 0.001%, chloride content of no more than 0.002% and the nitrate content of no more than 0. 002%. The invention also discloses a preparation method of the coarse particle nickel acetate. The present invention provides a process route for producing coarse nickel acetate; compared with the traditional process, the process route has the advanategs of simple production process, easily control of the process parameters, little environmental pollution, high production efficiency, high one-time recovery rate, no special production equipment requirements, low labor intensity and low process consumption; and compared with the conventional nickel acetate, the coarse particle nickel acetate has stable and reliable quality. Therefore, the process with good repeatability is applicable to large-scale production in plants.

The invention provides a spicy beef jerky and a preparation method thereof. The beef jerky is prepared through 1kg of fresh beef, 100-200g of vegetable oil, 50-90g of chilli, 40-80g of cedrela sinensis, 2-10g of mentha haplocalyx, 1-3g of star aniseed powder, 2-10g of green prickleyash, 5-15g of garlic, 1-6g of cinnamon, 1-6g of lemon juice, 3-8g of edible salt, and 400-800ml of water. According the spicy beef jerky, cedrela sinensis and mentha haplocalyx are ingeniously mixed to prepare the beef jerky, and the prepared beef jerky is delicious and unique in taste; chilli, star aniseed powder, green prickleyash, garlic, cinnamon and lemon juice are added to enable mellow and tasty flavor and mouthfeel of the beef jerky; the beef jerky is proper in spice and is welcomed by customers; the spicy beef jerky is a novel flavored jerky product having the advantages of being green, complete in nutrition, leisure and convenient; in addition, the preparation process is simple; the process parameters are easily controlled; the production cost is low; and the preparation method is very suitable for the beef deep processing and mass production.

The invention discloses a sorting method for chips with inappropriate yield to technological level. The method analyzes correlation to the test item and technology parameter for manufacturing chips based on personalized product according to the test result of each test item in the chip electrical performance test, if the test item is uncorrelated to the technology parameter, judging that the yield which is inappropriate to the technological level of the chip does not belong to the specific and specific problem; in addition, in order to avoid large amounts of computation and improve the efficiency, only analyzing the correlation for the test item with lowest yield in the related group and technology parameter rather than analyzing the correlation for each test item; the sorting method can accurately judge that the cause reason for the inappropriate chip yield to the technological level is the specific and specific problem and the waste of manpower and material resources can be avoided.

The invention relates to a preparation method of a visible light photo-catalyst and belongs to the technical field of photo-catalytic composite materials. The method includes steps of: a) with tetrabutyl titanate as a titanium source, performing sol-gel process and hydrothermal treatment to prepare a white solid, grinding the white solid into a powder, and sintering the powder in a muffle furnaceto prepare TiO2 powder; b) adding the TiO2 powder to an ionic exchange liquid and adding a less amount of an inhibitor to inhibit hydrolysis of the ionic exchange liquid, performing magnetic stirring,centrifugation and drying to obtain TiO2 powder of which the surface is supported with Cl<-> and Sn<2+> ions; c) adding the powder to an AgNO3 solution, and in a dark environment, fully stirring thesolution to obtain the nano AgCl/TiO2 which is uniformly dispersed and has very high photo-catalytic activity. In the AgCl/TiO2 visible light photo-catalyst, the nano AgCl is well-distributed on surface of the TiO2. Due to surface roughness of the TiO2 powder, agglomeration of nano-particles is effectively inhibited, so that the visible light photo-catalytic efficiency of the AgCl/TiO2 is significantly improved.

The invention relates to a reduced glutathione for injection and a pre-freezing method thereof. The pre-freezing method includes the following steps that S1, a glutathione solution is prepared and filled; S2, the partition plate temperature of a freeze-drying machine is reduced to be -25 to -35 DEG C; S3, the filled glutathione solution in the step S1 is put on a partition plate of the freeze-drying machine after the step S2 is completed, constant temperature is kept for 2 to 6 hours after the temperature of a product is reduced to be -25 to -35 DEG C, and a reduced glutathione frozen body is obtained, wherein a vacuum pump is started within 0.5 to 1 hour before constant temperature completion in the step S3 to enable the vacuum degree to be smaller than 10 Pa. The reduced glutathione used for injection and prepared by means of the pre-freezing method has the advantages of being high in safety, simple in freeze-drying operation, good in resolubility and stable and reliable in product quality.

The invention belongs to the field of photoelectric devices, relates to a preparation method of an ultraviolet and visible coexisting electroluminescent device, and particularly relates to a preparation method of an ultraviolet and visible coexisting electroluminescent device with an Au/MgO/CdZnO/SiMIS structure. The device comprises a substrate. A CdZnO thin film, a MgO thin film and an Au electrode are deposited on the front surface of the substrate from the bottom to the top in turn. An ohmic contact electrode is deposited on the back surface of the substrate. According to the device, a ZnO and CdZnO coexisting thin film luminescent layer is obtained by performing thermal treatment on the sputtering CdZnO thin film, and the thin film is enabled to emit electroluminescence arranged in an ultraviolet and visible region under certain forward bias voltage (the substrate is connected with negative voltage). Besides, the structure and the realization mode of the device are simple, and the preparation technology and the used equipment are compatible with the current mature silicon device technology.

The invention discloses a rust remover suitable for precise steel parts, and a rust removal process thereof, and relates to the field of mechanical technologies. The rust remover is composed of the following raw materials in percentage by mass: 10-20% of chromic anhydride, 0.8-1.5% of sulfuric acid, 13-18% of phosphoric acid and 60.5-76.2% of water. The rust remover disclosed by the invention is prepared through mixing the abovementioned raw materials in mass proportions, and the prepared rust remover is high in rust removal capacity, low in environmental pollution and suitable for rust removal for the precise steel parts; and a preparation method for the rust remover disclosed by the invention is simple in process parameters and high in preparation efficiency.