238results about How to "The preparation process is simple" patented technology

The invention relates to a process for producing a nano titanium dioxide/diatomite composite photocatalytic material. The process comprises the following steps: purifying a diatomite raw material by using grading and acid-washing processes; synthesizing nano titanium dioxide/diatomite composite particles by adopting a hydrolysis-precipitation method through the purified diatomite serving as a carrier, titanium tetrachloride serving as a precursor and hydrochloric acid, ammonium sulfate and ammonium carbonate serving as aids; and filtering, washing, drying and burning the composite particles to form a finished product. The process can thoroughly remove harmful substances, has quite ideal effect on deep treatment of waste gas, lowers the cost and improves the photocatalytic performance.

The invention discloses a nano-paste, a self-cleaning coating liquid and a thermal insulating coating liquid as well as transparent substrates and preparation methods thereof. The formula of the nano-paste comprises the following components in parts by weight: 5-25 parts of nano-powder, 1-25 parts of wetting agent, 1-25 parts of active dispersant and 10-200 parts of dispersion medium, wherein the nano-powder is a photocatalyst powder or a thermal insulating powder; the solid content of the nano-powder is 5-50wt%; the particle size distribution of particles in the nano-paste is 10-200 nanometers. The self-cleaning coating liquid and the thermal insulating coating liquid are obtained by firstly preparing stable nano-photocatalyst paste and nano-thermal insulating paste and then compounding the stable nano-photocatalyst paste and nano-thermal insulating paste with film forming matters such as inorganic sol and organic resin. The coating liquids can be applied to the surfaces of different transparent substrates by use of a plurality of different construction methods, so that transparent materials having double functions of self-cleaning and thermal insulation can be obtained; as a result, large-scale preparation of multifunctional transparent coated materials, such as multifunctional coated glass, is realized.

The invention discloses a preparation method of high-strength high-swelling nanocellulose and polyving akohol composite hydrogel. The method comprises the following steps that nanocellulose suspension is added in dimethyl sulfoxide solvent, and magnetic stirring is conducted to prepare mixed dispersion liquid; polyving akohol is added, and magnetic stirring is conducted for 3 h on the condition that the temperature is 95 DEG C; standing is conducted for 30 min at the constant temperature of 60 DEG C, the dispersion liquid is placed at the constant temperature after being frozen at low temperature, and freezing and thawing circulation is conducted for 5-8 times; obtained hydrogel is put in deionized water to swap out the dimethyl sulfoxide solvent in the gel, and the nanocellulose and polyving akohol composite gel is obtained. According to the preparation method of the high-strength high-swelling nanocellulose and polyving akohol composite hydrogel, reactions are physical reactions, and pollution to the environment in the preparation process is extremely low; by means of a mixed solvent system of dimethyl sulfoxide and water, formation of a uniform network structure of the nanocellulose and polyving akohol gel can be effectively facilitated, the formed three-dimensional interpenetrating network structure can effectively improve the strength and the swelling degree of the gel, the dimethyl sulfoxide can be directly swapped out from the gel after the reaction is completed, and the obtained biomass gel is free of toxicity and pollution.

The invention relates to a Li2S-P2S5-TiS2 amorphous electrolyte material with high room-temperature ironic conductivity, and belongs to the field of preparation of lithium ion battery related materials. The Li2S-P2S5-TiS2 amorphous electrolyte material is prepared by application of high-energy ball milling and low-temperature solid-phase reaction, and a preparation method of the Li2S-P2S5-TiS2 amorphous electrolyte material comprises following steps: in a glove box with argon protective atmosphere, three raw materials Li2S, P2S5 and TiS2 are mixed uniformly at a mole ratio of 34:15:1; agate balls are placed in a ball milling tank, and the mixture of the three raw materials is sealed in argon protective atmosphere, and is subjected to high-energy ball milling treatment; samples after ball milling treatment are added into a tube furnace, and is sintered at 300 DEG C for 3h in argon atmosphere so as to obtain the Li2S-P2S5-TiS2 amorphous electrolyte material. The Li2S-P2S5-TiS2 amorphous electrolyte material is prepared by combining high-energy ball milling and low-temperature solid-phase reaction, so that the Li2S-P2S5-TiS2 amorphous electrolyte material possesses relatively high room-temperature ironic conductivity, preparation technologies are simple, and reaction conditions are mild.

The invention discloses a method for preparing slab-shaped complex film made by blending polyethersulfone. Various film-forming agents according to certain proportion are made by blending polymer (polyethersulfone and sulfonated polyethersulfone), additive, non-solvent and organic solvent. Complex film is prepared on traditional shearing machine via pouring film-forming agents into loading chute, entering knife-edge groove, covering solution on supporting layer and dipping it into coagulating bath. The invention is characterized in that mainly via adjusting composition of film-forming agents, it prepares slab-shaped complex film with high intensity, high water flux and good hydrophilicity.

The invention discloses a regular structure adsorbent and a preparation method to greatly improve the diffusion efficiency of the adsorbent. The regular structure adsorbent is prepared from a support, an adsorbent material, a binder and other additives. The fibrous support, the powdery adsorbent material, the binder and other additives are mixed and dispersed in a solvent, a catalyst precursor is prepared firstly and then dried and activated to form the adsorbent. The regular structure adsorbent is applicable to purification separation processes of multiple gases, such as air separation, hydrogen separation, carbon dioxide separation, methane separation and the like, and the synthesis method is simple, good in repeatability and prone to industrialization.

The invention discloses a preparation method of ferroferric oxide/carbon composite negative electrode material for a lithium ion battery, and belongs to the field of new energy resources and electrochemistry. According to the invention, a Fe3O4/C composite negative electrode material with a nano porous structure is prepared by taking inorganic iron salt as an iron source, taking a carbon matrix as a carrier, and adopting a solvothermal method. The carbon matrix is directly introduced into reaction liquid, transformation of the spherical structure of carbon particles occurs in the solvothermal process, and active substances of nano iron oxide are absorbed on the surfaces of the porous carbon particles so as to form the Fe3O4/C composite negative electrode material with an embedding structure; the carbon matrix is used for fixing the nano iron oxide particles to improve the structural stability of the electrode on one hand, and forms a conducting network to be beneficial to fast transmission of electrons on the other hand, so that the polarization of the electrode is reduced and the rate capability of the electrode is improved. The ferroferric oxide/carbon composite negative electrode material synthesized according to the invention has the advantages that the particle powder is fine and is distributed uniformly, the preparation process is simple, the condition is mild, the cost is low and the electrochemical performance is excellent.

The invention relates to a polymer dispersed liquid crystal (PDLC) material which is low in voltage and wide in temperature mode, wherein the material consists of a liquid crystal material, an aliphatic polyurethane acrylate oligomer, an acrylate monomer, a photoinitiator and interstitials. The invention further provides a polymer dispersed liquid crystal display apparatus prepared by using the polymer dispersed liquid crystal material and a preparation method thereof. The polymer dispersed liquid crystal material provided by the invention has the advantages of wide raw material source and simple and convenient preparation process. The PDLC display apparatus prepared from the PDLC material has the advantages of low driving voltage, wide range of working temperature, no shrinkage and deformation and good adhesive force. The preparation method of the PDLC display apparatus is simple and convenient, the thickness of the display apparatus can be adjusted according to size of the interstitials added, and the display apparatus obtained is good in adhesive force and not easy to shrink and deform, so that the PDLC display apparatus with a large area can be probably prepared.

The invention discloses a gold micro-nano composite structure array and a preparation method thereof. The array is a gold bowl array or a gold hollow sphere array disposed above a gold film covered on a substrate, wherein the diameter of a gold bow opening is from 500 nanometers to 10 micrometers, a bowl wall is composed of gold rods, the lengths of the gold rods are 100-1000 nanometers, the diameters of the gold rods are 50-400 nanometers, the inner diameter of a gold hollow sphere is from 500 nanometers to 10 micrometers, a sphere casing is composed of gold particles with diameters of 50-600 nanometers, and the thickness of the gold film is 5-25 nanometers. The preparation method includes sputtering a layer of the gold film on the substrate, placing a single layer colloidal crystal template which is composed of polystyrene colloidal spheres with diameters from 500 nanometers to 10 micrometers on the substrate which is covered with the gold film, then placing the substrate covered with the gold film and the colloidal crystal template into a chloroauric acid solution with concentration of 0.3-0.7g/L, using the solution with the substrate as a working electrode, subjecting the mixture to electro-deposition for 2-8 hours under the deposition electric current density of 0.03-0.05mA/cm<2> or 0.15-0.45mA/cm<2> to obtain a complex array, and placing the complex array in a dichloromethane solution for to removing the polystyrene colloidal spheres to obtain target products. The gold micro-nano composite structure array can be used as a surface enhanced raman scattering active substrate.

The invention discloses a high-compaction-density lithium iron phosphate anode material and a preparation method thereof. Sizing agents of two different particles are selected, the large-particle sizing agent and the small-particle sizing agent are mixed according to a certain ratio in the grinding stage, then, drying treatment and thermal treatment are performed to obtain high-compaction-densitylithium iron phosphate, the obtained lithium iron phosphate is large in density, the preparation technological process is simple, the cost is low, the material can be applied to industrial mass production, automatic control is achieved, the finished lithium iron phosphate is good in performance, resources are saved, and the production efficiency is improved.

The invention discloses a catalyst for catalytic combustion of chlorine-containing organic waste gas. The catalyst consists of a carrier and an active ingredient loaded on the carrier, wherein the carrier is TiO2, Al2O3, ZrO2 or SiO2, and the active ingredient is composed of nickel oxide and an active auxiliary; the active auxiliary is oxide of one or more then one element of copper, manganese, cerium, iron, chrome and vanadium; the mass of all metallic elements in the active ingredient is 5-40 wt% of the mass of the carrier, preferably 10%, and the mass ratio of the total metallic elements in the active auxiliary to Ni is 1.0: (1.0-5.0). Furthermore, the invention discloses a preparation method of the catalyst. The elements of the active ingredient of the catalyst provided by the invention are transition metal and rare-earth metal oxides, and the catalyst is free of noble metal and low in cost; and the catalyst has the advantages of high activity, high selectivity, high stability and the like.

The invention discloses a compound concrete admixture with early strength and water reduction functions. The compound concrete admixture is mainly prepared by 10-20 parts by mass of a polycarboxylate water-reducer, 1-5 parts by mass of a surfactant, 5-40 parts by mass of an early strength agent, 2 or less parts by mass of an air entraining agent, and 20-100 parts by mass of water. The preparation method of the compound concrete admixture comprises the following steps: processing a polycarboxylate water-reducer mother liquor to prepare a solution, mixing the polycarboxylate water-reducer solution with the early strength agent, the surfactant, the air entraining agent and water according in proportion, and uniformly stirring. The application of the concrete admixture is realized through the following steps: stirring the concrete admixture and standard sand; taking cement and water, and carrying out low-speed uniform mixing; mixing the above two materials, carrying out low-speed stirring, then carrying out high-speed stirring, intermediately stopping, and then continuously carrying out high-speed stirring; and adding the finally obtained mixture into a mold, and maintaining, wherein the addition of the polycarboxylate water-reducer is not greater than 1% of the amount of a cement mortar. The compound concrete admixture has the advantages of simple preparation method, fast effectiveness, wide application range, low cost and good effect.

The invention discloses a carbon-coated aluminum oxide carrier with bimodal pore structure, and a preparation method thereof. The preparation method comprises: (1) mixing hydrated alumina and ammonium aluminum carbonate, mixing with a carbon precursor, kneading into a plasticized body, and obtaining a molded material by using a physical molding method, wherein a weight ratio of the hydrated alumina to the ammonium aluminum carbonate is 1:9-9:1, and the sum of the weight of the hydrated alumina and the ammonium aluminum carbonate to the carbon precursor is 7:3-19:1; and (2) drying the molded material obtained in the step (1) at a temperature of 50-100 DEG C, and carrying out heat treatment in an oxygen-free atmosphere to obtain the carbon-coated aluminum oxide carrier with the bimodal pore structure. According to the present invention, the process of the preparation method is simple, the bimodal pore structure covers on the surface of the prepared carbon-coated aluminum oxide carrier, and the carbon-coated aluminum oxide carrier can be used as the adsorbent and the catalyst carrier.

The invention relates to the technical field of the fracturing of an oil field, and particular relates to an acid carboxymethyl guargum fracturing fluid and a preparation method of the fluid. The acid carboxymethyl guargum fracturing fluid comprises the following raw materials: carboxymethyl guargum power, discharge aiding agent, swelling-resistant agent, bactericide, demulsifier, acid cross-linking agent, cross-linking time delay action activator, gel breaker and water. The preparation method of the fluid comprises the following steps of: firstly preparing base liquid; secondly preparing cross-linking; and thirdly preparing the acid carboxymethyl guargum fracturing fluid. The invention has the beneficial effects of acidic crosslinking environment, simple technology, convenience of in-field operation, and good combination property; and the acid carboxymethyl guargum fracturing fluid has the advantages of being good in compatibility performance, delayed in crosslinking characteristic, good in fluid loss characteristic, good in swelling-resistant effect, low in residue, and thorough in gel breaking, and can meet the fracturing construction of a reservoir stratum under the temperature from 30 DEG C to 100 DEG C.

The invention relates to a light-and-temperature-induced color change masterbatch and a preparation process thereof, and belongs to the technical field of color masterbatch and preparation processes thereof. The light-and-temperature-induced color change masterbatch comprises a carrier, wherein the carrier is covered with a photosensitive layer made of photochromic material; and the rest part of the carrier is covered with a thermosensitive layer made of thermochromic paint. The preparation process comprises the following steps of: 1, grinding; 2, mixing; 3, internal mixing; 4, stripping, palletizing; and 5, drying. The color masterbatch disclosed by the invention has a reasonably designed structure; the photochromic material and thermochromic paint added into the raw materials allow the color masterbatch prepared to change color with temperature and light intensity; the masterbatch meets industrial requirements; the preparation process of the light-and-temperature-induced color change masterbatch is easy; the preparation cost is low; and thus, the masterbatch has a bright application prospect.

The invention relates to a composite graphite cathode material for a lithium ion battery, and its preparation method, mainly relates to a composite graphite cathode material for a high-capacity lithium ion battery, and its preparation method, and belongs to the field of cathode materials for the lithium ion battery. The composite graphite cathode material for the high-capacity lithium ion battery is formed by blocky powder and spheroidic powder, and is characterized in that the specific surface area is 1.5-3.5m<2>/g, the average particle size is 7-30mum, the Raman ratio R is 0.1-0.3, and the interlamellar spacing of a crystal face (002) is 0.335-0.337nm. The composite graphite cathode material for the lithium ion battery has the advantages of excellent compact density, excellent gram specific capacity and excellent cycle stability, so the energy density per unit volume of the lithium ion battery is improved, and the electrical performances of the cathode material in the lithium ion battery are comprehensively improved.

The invention relates to a preparation method for a die graphite material used for electrical discharge machining. The preparation method comprises the following steps: crushing calcined pitch coke and artificial graphite powder; carrying out batching and adding 20 to 35% of molten asphalt; then carrying out kneading, rolling and isostatic compaction; roasting a green compact at a temperature of 850 to 1000 DEG C for 600 and 800 h; carrying out high pressure dipping with 10 to 25% of molten special dipping asphalt; then carrying out roasting at a temperature of 800 to 900 DEG C for 300 and 400 h; and finally carrying out graphitization at a temperature of 2400 to 2800 DEG C for 150 and 230 h. The preparation method provided by the invention has the advantages of simple operation, high yield, full utilization of resources, conservation of cost, capacity of allowing high volume density and mechanical strength to be maintained and strong practicality.

The invention relates to an inorganic fiber reinforced composite material which is characterized in that the composite material is prepared by magnesium oxide, phosphate, a retarder, short fibers, fillers and water according to a certain weight ratio; the composite material can be used to produce various products by mold pouring or pressure molding, and the operation is simple and convenient; the composite material has the advantages and effects of good mechanical properties, good density, acid and base corrosion resistance, nontoxicity, environmental protection, low cost and wide applications; and the inorganic fiber reinforced composite material has low cost, high strength, and good toughness, is applicable to industrial batch production, is suitable for producing pipes, tanks, decoration materials, handicrafts, fireproof doors and windows and the like with various shape specifications, and can substitute wood, metal, and plastics in many aspects.

The invention discloses a long-service-life and high-specific-capacity poly-dopamine-coated hollow sulfur microsphere composite positive electrode material and a preparation method thereof. The preparation method comprises the following steps: preparing hollow sulfur microspheres through reaction of a surfactant, a sulfur-containing agent and acid; dispersing the hollow sulfur microspheres in a poly-dopamine water solution and after the reaction is finished, filtering, washing and carrying out vacuum drying a product to obtain the poly-dopamine-coated hollow sulfur microsphere composite positive electrode material. The preparation method has the advantages of the preparation process is simple, the operation is convenient and material performance is excellent; the prepared poly-dopamine-coated hollow sulfur microsphere composite positive electrode material is high in discharge specific capacity and good in cycling performance. is used as a positive electrode material of a lithium sulfur battery, the composite material has a wide application prospect in mobile communication, portable electronic devices, electric automobiles, energy storage and the relevant fields.

The invention relates to a puffing lotus seed preparation technique, which mainly comprises the workflows of boiling and flavoring, refrigeration, vacuum drying, baking, application of spice, etc. the puffed lotus seed, while preserving its nutritious content, realizes puffing and crispy taste.

The invention discloses a preparation method of a one-dimensional scale limited graphene nano band, which comprises the steps of: providing a transition metal substrate; coating photoresist on the surface of the transition metal substrate to form a photoresist layer; transferring a defined pattern to the photoresist layer through exposure development to form a photoresist graph; with the photoresist layer as a mask, carrying out carbon ion injection in the transition metal substrate to form a carbon ion injection region; figuring out an injection angle for the carbon ion injection according to the graphene width in combination with the thickness of the mask of the photoresist layer and the width of the photoresist graph; and removing the photoresist layer; and carrying out thermal annealing, separating carbon atoms from the carbon ion injection region for reconstruction, and forming the one-dimensional scale limited graphene nano band with a width of close to even less than 10nm on the surface of the transition metal substrate. Compared with the prior art, the preparation method is used for preparing the graphene nano band by carrying out carbon ion injection at a calculated specific injection angle, and has the advantages of accuracy in preparation, simple preparation process and high yield.

The invention discloses a graphene oxide conductive adhesive and a preparation and using method of the graphene oxide conductive adhesive and relates to a conductive adhesive and a preparation and using method of the conductive adhesive. The invention aims to solve the technical problems that the conventional adhesive and conductive adhesive are complex in preparation process and the conductive adhesive is low in conductivity and low in tolerance to acid or alkaline and oxidizing conditions. The adhesive is viscous dispersion liquid formed by dispersing graphene oxide in water or/and an organic solvent. The preparation method comprises the following steps: adding the graphene oxide into the water or/and the organic solvent, and obtaining graphene oxide slurry; ultrasonically stripping and dispersing under ultrasonic conditions, and obtaining dispersion of the graphene oxide; evaporating and concentrating, ultrasonically stripping and dispersing, and obtaining the graphene oxide conductive adhesive. The using method comprises the following steps: uniformly coating the graphene oxide conductive adhesive to a connecting face of two structure bodies needed to be connected, and obtaining a pre-connecting piece; and reducing after drying, and finishing conductive connection. The graphene oxide conductive adhesive can be used for electrode adhesion.

The invention discloses a Chinese yew-seedling tissue culture medium and the breeding method, made up of nutritious agent, growth promoter, stabilizing agent and microelement. It mechanically crushes tender spike branches or tender branches (buds) and leaves of the parent-body tree, then adds their crushed histiocytic plasm into the culture medium for cultivating in groups. It has simple preparing process, low cost, little loss, short cultivating time, etc. The cultivating time of the spike branches 7-15 days, and that of the histiocytic plasm 10-25 days.

Currently, a bulk black phosphorus material has high market price in China, and sale for a two-dimensional black phosphorus material is not found until now. In resent two years, the requirement of scientific research institutions for black phosphorus materials is quickly increased, so that large-scale preparation of two-dimensional black phosphorus materials has great market potential. Furthermore, two-dimensional black phosphorus serving as an excellent substrate can be used for supporting platinum, gold, silver and other noble metal materials to develop catalysts and other black phosphorus downstream products with high activity and selectivity, and has wide application prospects. The invention discloses a two-dimensional black phosphorus material and a preparation method thereof. The preparation method comprises the steps of grinding bulk black phosphorus, washing, adding N-methyl pyrrolidone, performing ultrasonic peeling and differential centrifugation, and washing to obtain the two-dimensional black phosphorus material. The preparation method is quick, simple and convenient, can reduce the preparation time and preparation cost, and has great market potential.

The invention relates to a mitochondria-targeted polysaccharide nano preparation. The mitochondria-targeted polysaccharide nano preparation comprises water-soluble polysaccharide, triphenylphosphine and antitumor medicine containing primary amine or hydroxyl groups, wherein the triphenylphosphine modifies the antitumor medicine through an amido bond or an ester bond and is connected to the water-soluble polysaccharide through an ionic bond manner; or the triphenylphosphine modifies the water-soluble polysaccharide through an amido bond, and the antitumor medicine is combined to the water-soluble polysaccharide in an amido bond or hydrazone bond manner. The invention further relates to a preparing method of the mitochondria-targeted polysaccharide nano preparation. The polysaccharide nano preparation has the advantage of acid-sensitive drug releasing in a tumor microenvironment and is simple in process. Compared with the single solution of traditional antitumor medicine, the preparation has the advantages that the preparation' toxicity to tumor cells is increased greatly, and the preparation is widely applicable to the field of antitumor tolerance researches.

The invention belongs to the technical field of walling material, which more particularly relates to a high-strength water resistance plate which is formed by combining cement, silica fume, quartz powder, fine sand, a water reducing agent, steel fiber and polypropylene fiber. The cement is one of Portland cement with the strength level more than or equal to 42.5 level or ordinary Portland cement; the fineness of the quartz powder is 320 meshes; the fine sand is 28 to 45 meshes; the water reducing agent is a polycarboxylate water reducing agent, and the steel fiber and the polypropylene are incorporated. The high-strength water resistance plate causes the paste flow property of plate to be good by adopting novel water reducing agent to reach self-leveling molding; the anti-folding strength of plate can be adjusted according to the different volume quantity of the steel fiber, and the anti-folding strength can reach about 20MPa with the water absorption rate being about 1 percent when the volume quantity of steel fiber is 1.5 percent.

The invention relates to flame-retardant, acid-proof, alkali-proof and anti-bacterial lubricating oil for a mechanical bearing. The flame-retardant, acid-proof, alkali-proof and anti-bacterial lubricating oil consists of the following components in part by mass: 580-620 parts of base oil, 60-64 parts of glycerin monostearate, 56-60 parts of epoxidized soybean oil, 60-64 parts of isophorone diisocyanate, 56-60 parts of triethoxyisobutylsilane, 60-64 parts of sodium molybdate, 56-60 parts of oleic acid polyoxyethylene ester, 62-66 parts of dioctyl phthalate, 56-60 parts of olychloroprene, 60-64 parts of adipic acid pentaerythritol ester, 56-60 parts of white oil, 60-64 parts of zinc stearate, 56-60 parts of inositol hexaphosphate, 60-64 parts of isothiazolinone, 56-60 parts of sodium diacetate, 60-64 parts of methylisothiazolinone, 56-60 parts of pulverous coal, 60-64 parts of alumina, 56-60 parts of dibulytin dilaurate, 60-64 parts of tetrabutyl titanate, 56-60 parts of naphthenic acid, 60-64 parts of dipropylene glycol monomethyl ether and 56-60 parts of cobalt aluminate powder. The lubricating oil has good corrosion-resistant, flame-retardant and anti-bacterial properties.

The present invention discloses a preparation method of lithium-ion battery by Sn-Cu-Co alloy negative-pole materials, pertaining to the art of lithium-ion battery technology. The method is a carbon thermal reduction method to calculate the amount of Sn, Cu and Co oxides according to the Sn/(Cu+Co) atomic ratio of 3:1-2:3; wherein, the atomic ratio of Cu/Co is 5:1-1:5; the amount of carbon powder is calculated in terms of CO which is reduced from the oxygen in all oxides. After being evenly mixed and ground, the raw material is placed in a flowing protection atmosphere so as to rise to the required target temperature at a heating rate of 2-30 DEG C per minute and after a certain time of insulation, the temperature of the raw material declines to the room temperature with the cooling of furnace. The present invention has the advantages of low material cost, simple preparation process, less time consumption, high yield, good safety, great application value in material preparation and suitability for mass production. The Sn-Cu-Co alloy has the advantages that crystallization is higher; the inside is full of micron particles in a loose structure with a smaller surface, which are difficult to reunite in the electrode cycling process; the existence of the two non-active components Cu and Co greatly releases the volume changes in the electrode cycling process and is conducive to enhancing the stability of the electrode cycling.

The invention discloses a method for preparing organic fertilizer from tetracycline antibiotic dregs, relates to a harmless treatment and resource utilization method of tetracycline antibiotic dregs and aims to solve the problems that the treatment cost of the existing tetracycline antibiotic dregs is high, environment risks still exist after treatment and the like. With persulfate as an oxidant and ferrous sulfate as an activating agent, the tetracycline antibiotic dregs which have the residual quantity of tetracycline antibiotics being 1,000-2,500 mg/kg and have the pH of 2.0-4.5 are treated. By means of ferrous ions activated persulfate, the removal efficiency of tetracycline antibiotics is up to 99.5%, the sterilization capability is high, the treatment cycle is short, and treatment can be completed within 1 hour.

The invention relates to a colloidal electrolyte of a storage battery, which is realized by the mode that carboxymethyl chitosan with the total weight of 0.1-0.01% is added on the base of a formula of existing commercial nanometer fumed silica colloid electrolyte or silica solution colloid electrolyte. By adding the carboxymethyl chitosan, the responsible speed of sulfuric acid concentration in the colloid electrolytes at the electrode interface layer is improved, the utilization rate of active matters are effectively improved, and the salinization of sulfuric acid of the active matters is restrained. The colloid electrolyte provided by the invention can be widely applied to various colloid storage batteries.