85 results about "Chloride cobalt" patented technology

The invention provides a preparation method of semi-micrometer cobalt powder. The preparation method of the semi-micrometer cobalt powder is low in cost and simple and practical, and products by means of the preparation method are high in purity. The preparation method includes that cobalt carbonate sediments are produced through reaction of cobalt chloride and ammonium hydrogen carbonate, reaction of the cobalt carbonate sediments and oxalate solution is carried out, when the reaction is stopped, reaction products are directly crushed through drying and air flow by centrifugal spray drying equipment, and therefore precursor powder which is fine and even in particle size and sphere-like in particle shape and mixed by oxalate cobalt and cobalt carbonate. The precursor powder is reduced in a superfine powder hydrogen reduction furnace and then comes out of the furnace after reduction, and then the precursor powder is kept in nitrogen or carbon dioxide for 12-24 hours for passivating treatment. Afterwards, the precursor powder is crushed by the air flow, paraffin wax and oleic acid are added in the precursor powder, the precursor powder is packaged so as to prevent cobalt powder from oxidation, and finally superfine cobalt powder is obtained by vacuum package. The semi-micrometer cobalt powder obtained by means of the preparation method has the advantages of superfine cobalt powder and sphere-like cobalt powder, is fine in particle size, narrow in distribution, small and even in partical size and can be widely used in battery industries and hard alloy products like numerical blades, bar materials, holding-up hammers and drills.

The invention discloses a trace-element block special for calves. The trace-element block comprises the following components in parts by weight: 700-850 parts of table salt, 100-120 parts of rock flour, 28-38 parts of light calcium carbonate with the calcium mass ratio of 39.2%, 15-20 parts of copper sulfate with the copper mass ratio of 25%, 16-21 parts of zinc sulfate with the zinc mass ratio of 34.5%, 13-18 parts of manganese sulfate with the manganum mass ratio of 31.8%, 6-10 parts of potassium iodide with the potassium mass ratio of 2%, 1-5 parts of sodium selenite with the sodium mass ratio of 1%, 0-3 parts of cobalt chloride with the cobalt mass ratio of 1% and 14-20 parts of ferrous sulfate with the ferrum mass ratio of 30%. The quantity of trace elements in the block is selected, and superfluous elements are prevented from being added, so that the adding cost of the trace elements can be reduced, and the environment pollution caused by aimless excessive addition can be avoided; meanwhile, the content ratio of mineral elements in the calves can be relatively regulated, so that the growth and the development of the calves can be exerted to the maximum extent, and test results show that the effect is remarkable.

The invention provides a culture medium for phalaenopsis amabilis tissue culture. The culture medium comprises the following components: 1900 mg/L of KNO3; 1650 mg/L of ammonium nitrate; 170 mg/L of potassium dihydrogen phosphate; 370 mg/L of magnesium sulfate heptahydrate; 440 mg/L of calcium chloride dihydrate; 0.60-0.62 mg/L of KI; 4.5-4.8 mg/L of boric acid; 25.0-25.3 mg/L of manganese sulfate tetrahydrate; 7.0-7.2 mg/L of zinc sulfate heptahydrate; 0.20-0.22 mg/L of sodium molybdate dihydrate; 0.025 mg/L of copper sulfate pentahydrate; 0.025 mg/L of cobalt chloride hexahydrate; 37.25 mg/L of Na2.EDTA; 27.85 mg/L of ferrous sulfate heptahydrate; 100 mg/L of inositol; 2 mg/L of glycine; 0.1 mg/L of thiamine hydrochloride; 0.5 mg/L of pyridoxine hydrochloride; 0.5 mg/L of nicotinic acid; 20-22 g/L of sucrose; 5-5.2 g/L of agar; 30-35 g/L of a banana juice; 3-5 g/L of a pear juice; 0.45-0.48 g/L of activated carbon; and a solvent being deionized water. With application of the culture medium to culture phalaenopsis amabilis, the survival rate is more than 96%, the bacteria infection rate is 2.7-2.8%, and the browning degree of the culture medium is 30-40% lower than that of an MS culture medium.

The invention provides a method for preparing a reagent cobalt chloride hexahydrate. The method comprises the following steps of: reacting a metal cobalt slice with a concentrated nitric acid so as to generate a cobalt nitrate, directly reducing the cobalt nitrate by using formaldehyde in the condition of the esistence of hydrochloric acid so as to remove the nitrate radical to generate a cobalt chloride solution, filtering, concentrating and cool crystallizing so as to acquire the cobalt chloride hexahydrate. The method of the invention generates no other impurities except the target products, gas and water in the reaction process, and can obtain pure cobalt chloride hexahydrate. The products acquired by using the method meet the analytically pure standard of GB/T 1270-1996 chemical reagent cobalt chloride hexahydrate. The method has the advantages of simple operation, rapid reaction, short producing flow, high production efficiency, mild process condition, easily controlled property and application in mass commercial process.

The invention discloses a method for preparing a carbon nano tube by means of a cobalt chloride catalyst. The carbon nano tube takes glucose, melamine and cobalt chloride as the raw materials, steps of mixing, drying, roasting, pickling and the like are conducted, the length of the obtained nano tube ranges from 5 microns to 30 microns, and the pipe diameter of the obtained nano tube ranges from 200 nanometers to 300 nanometers. The preparation technology of the carbon nano tube has the advantages of being simple, safe, low in cost, easy to operate, controllable and the like.

The invention relates to a method for overcoming adventitious buds vitrification of sisal hemp. According to the method, callus is directly inoculated to SZ culture medium to induce the adventitious buds; and the components of the SZ culture medium comprise 2267mg/L of potassium nitrate, 400mg/L of potassium dihydrogen phosphate, 150mg/L of ammonium sulfate, 400mg/L of calcium chloride dihydrate, 400mg/L of magnesium sulfate heptahydrate, 10mg/L of manganese sulfate monohydrate, 5mg/L of zinc sulphate heptahydrate, 5mg/L of boric acid, 1mg/L of potassium iodide, 0.1mg/L of sodium molybdate dehydrate, 0.2mg/L of copper sulfate pentahydrate, 0.1mg/L of cobalt chloride hexahydrate, 27.8mg/L of ferric sulfate heptahydrate, 37.3mg/L of disodium ethylenediamine tetraacetate, 0.8mg/L of thiamine hydrochloride, 1.0mg/L of pyridoxine hydrochloride, 1.0mg/L of nicotinic acid, 200mg/L of inositol, 3mg/L of glycine, 30000mg/L of sugar, 8000mg/L of carrageenan with a pH value of 5.8, 3.0 mg/L of 6-benzylaminopurine, 0.1mg/L of 3-indolebutyric acid, and 0.1mg/L of alpha-naphthylacetate. The SZ culture medium is used for inducing the adventitious buds from H.11648 hemp callus. The differentiation rate of the callus is above 90%, and the vitrification rate of the adventitious buds induced from the callus is below 8%, namely, the method can obviously overcome the occurrence of the adventitious buds vitrification of the sisal hemp.

The invention provides a composite test material for testing whether water enters a cable or not. The composite test material is prepared from the following raw materials: water-absorbent resin, polyurethane acrylic resin, an inorganic color developing agent, a plasticizer, filler and a flame retardant. The water-absorbent resin is a copolymer taking acrylic acid, acrylamide and 3,3'-diallylbiphenol as monomers; the inorganic color developing agent is anhydrous cupric sulfate or anhydrous cobalt chloride; and the filler is hydrophobically modified calcium carbonate. The components have a synergistic effect, so that the composite material changes color under the humidity of 35-45%, and meanwhile, various mechanical properties reach the standard. The composite material provided by the invention can be conveniently made into a linear or cloth-shaped material, when the composite material is used, only the composite test material needs to be loaded into a cable, a cable joint is opened whenneeded and the water inlet condition in the cable can be judged by observing whether the composite material changes color or not. The composite material is convenient and rapid to use and is stable and reliable.

The invention discloses a preparation method of superfine cobalt-nickel powder for hard alloys. The preparation method comprises the steps that a cobalt chloride solution and a nickel chloride solution are mixed into a base solution in proportion, the base solution is added into a reaction still; then a sodium carbonate solution is added into a reaction still by adopting a spraying mode, stirringis carried out at 40-80 DEG C for 3-4 hours, and a cobalt-nickel mixed solution is obtained; then filter pressing processing and washing and slurrying are carried out to obtain cobalt-nickel mixed slurries; and finally, high-temperature reduction is carried out to directly obtain the superfine cobalt-nickel powder. Therefore, the problem of powder aggregation when cobalt powder is simply preparedcan be solved; meanwhile, the prepared superfine cobalt-nickel powder is uniformly distributed, is small in grain size, and can be directly used for preparing the hard alloys; and the problem that defects appear to a hard alloy tool due to nonuniform mixing is solved, and the service life of the hard alloys is prolonged.

The invention relates to a preparation method of a porous layered CoFe2O4/C nano composite material, and the method comprises the following steps: by using ferric trichloride hexahydrate and cobalt chloride hexahydrate as an iron source and a cobalt source, hexamethylenetetramine as a carbon source, ethylene glycol as a solvent and sodium citrate as a complexing agent, preparing the porous layered CoFe2O4/C nano composite material by a one-pot method, wherein the porous layered CoFe2O4/C nano composite material has a porous structure. Moreover, the method directly realizes the compounding of the transition metal oxide and the carbon material, and is beneficial to the inhibition of the volume expansion problem in the charging and discharging process as an improved lithium battery negative electrode material.

The invention discloses a preparation method of a complex iron catalyst for wet desulphurization, and belongs to the technical field of environmental protection. The preparation method comprises the following steps: (1) preparing sulfophthalic acid; (2) reacting sulfophthalic acid with sodium hydroxide to prepare a compound I; (3) reacting the compound I with cobalt chloride to prepare a compoundII; (4) reacting the compound I with an iron-containing compound to prepare a compound III; (5) reacting the compound II with a compound III to obtain a compound IV; (6) preparing a stabilizer; and (7) uniformly mixing the compound IV with double stabilizers, heating, cooling, and drying to obtain the catalyst. According to the prepared composite iron catalyst for sulfur-containing gas desulfurization, the working sulfur capacity is greatly improved, the concentration of iron ions is reduced while hydrogen sulfide absorption is completed, the ideal absorption effect is achieved, the side reaction occurrence probability is reduced, the very good hydrogen sulfide absorption effect can be achieved, and meanwhile generation of secondary salt can be inhibited.

The invention discloses a MnCoP catalyst, and preparation and application thereof. The preparation method comprises the following steps of: (1) preparing an electrolyte: mixing cobalt chloride, manganese sulfate, sodium hypophosphite and boric acid in an aqueous solution to obtain the electrolyte; and (2) preparing the MnCoP catalyst: dipping a cleaned porous matrix material in the electrolyte, then connecting the porous matrix material with a negative electrode of a power supply to be used as a cathode of an electrolysis device, and then electroplating to obtain the MnCoP catalytic material loaded on the porous matrix material. According to the preparation method, metal can be fully plated on the carrier without a surface catalyst, and the difunctional MnCoP catalyst which is good in binding force, large in area and efficient in catalytic performance and is used for sodium borohydride hydrolysis and water electrolysis hydrogen production can be synthesized only through two steps.

The invention belongs to the technical field of quality detection of meat samples and relates to a making method of color-changing test paper for detecting water-holding capacity of beef and a detection method to solve the technical problems that the operation is complicated, the treatment time is long and the water-holding capacity of beef cannot be well detected online in the prior art. The making method comprises steps as follows: 1, 2-3 g of a cobalt chloride reagent is weighed and dissolved in 20 ml of deionized water; 2, the prepared test paper is soaked in a prepared cobalt chloride solution for 12-18 min; 3, the reagent which is not adsorbed on the surface of the test paper is sucked dry by absorbent paper, and the test paper is put in a culture dish and dried in a drying oven for 15-20 min. The detection method comprises steps as follows: 1, the beef sample is sliced in the direction perpendicular to muscle fiber; 2, the color-changing test paper is attached to the surface of the beef sample; 3, a dried glass slide is placed on the color-changing test paper and slightly pressed; 4, the color changing condition of the test paper is observed via the glass slide; 5, the water-holding capacity of the beef is judged by the aid of a regression equation according to the color changing time of the test paper.

The invention relates to the technical field of preparation and application of catalyst materials, in particular to a preparation method of an electrolyzed water hydrogen production catalyst. The preparation method adopts a molten salt synthesis method, cobalt chloride is used as a template and a cobalt source, thiourea is used as a nitrogen source and a sulfur source, glucose is used as a carbonsource, under the condition of a room temperature, manual grinding is performed for 30 min in an agate grinding bowl, obtained blue powder is used for preparing the electrolyzed water hydrogen production catalyst by high temperature calcination in a tube furnace, and the pore passage structure and heteroatom content of the material can be adjusted by controlling the calcination temperature. The preparation method is high in product yield of 41%, the material can be used as the electrolyzed water hydrogen production catalyst, and the preparation method is an ideal method for preparing the electrolyzed water production catalyst.

The invention discloses a method for preparing a FeCoNiCuSn high-entropy alloy through electro-deposition, and belongs to the technical field of electroplating. The method comprises the steps:firstly, choline chloride, levulinic acid and distilled water are stirred at a constant temperature to obtain a transparent eutectic solvent; then, ferrous chloride, cobalt chloride hexahydrate, nickel chloride hexahydrate, copper chloride dehydrate and stannous chloride dehydrate are added into the eutectic solvent, and stirring is performed at a constant temperature to obtain an electroplating solution; and graphite serves as an anode, a brass sheet and the like serve as a cathode, the graphite and the brass sheet and the like are immersed into the electroplating solution for constant-current electroplating. The electroplating process is safe, non-toxic, environmentally friendly and economical, and the technical problem that the FeCoNiCuSn high-entropy alloy is difficult to co-deposit is solved.

The synthesis method comprises the following steps: sequentially adding pyridylaldehyde, (1S, 2S) diphenylethylenediamine, anhydrous cobalt chloride and a solvent into a reactor, carrying out a magnetic stirring reaction in an argon atmosphere, carrying out a full reaction in a metal bath, and after the reaction is finished, carrying out a solid-liquid separation, so as to obtain the chiral imidazoline skeleton cobalt complex. And filtering, washing and drying to obtain a target product. The bidentate cobalt complex synthesized by the method disclosed by the invention is used as a catalyst for catalyzing polyisoprene and has relatively high catalytic activity.

The invention discloses a chemical composition for preventing fruit cracking of red dates, wherein the raw materials comprise, by mass, 1-2 parts of sodium tungstate, 2-3 parts of cobalt chloride and1-3 parts of ibuprofen. The preparation method comprises: respectively dissolving the three reagents in clear water accounting for 10000 times the mass of the reagent to obtain aqueous solutions, mixing the three aqueous solutions, and uniformly stirring. The use method comprises: taking the full-bloom stage time of red date tree as a starting day, uniformly spraying the whole tree in three timesat the 60th day, the 75th day and the 90th day, wherein the front surface and the back surface of the leaf are sprayed during the spraying until the leaf surface is wet while the water is not converged into small water flow, the weather conditions are considered during the spraying, and the application is not performed on rainy days, windy days and high-temperature days. The chemical composition of the invention has advantages of remarkable red date fruit cracking prevention effect, labor saving, low cost and easy implementation.

The invention provides a preparation method of a composite negative material of a lithium-ion battery. The preparation method comprises the following steps of: (1) simultaneously adding a nickel chloride solution and potassium hydroxide into a buffer solution, adjusting the PH value of the mixed solution to be 10 by a potassium hydroxide solution, and stirring the solution for 30min; (2) filtering the stirred solution, and adjusting the pH value of the solution to be 7; (3) washing the neutral solution in the step (2) by anhydrous alcohol, and heating and drying the washed solution for 250min to 300min to obtain potassium hydroxide powder; (4) calcining the potassium hydroxide powder in air at a high temperature to obtain potassium oxide powder; and (5) dissolving the potassium oxide powder and hydrated cobalt chloride in water, adding sodium borate to be stirred for 30min, filtering the obtained solution to remove chlorine ions, drying for 5h to obtain the nickel chloride cobalt composite negative material, The composite negative material prepared through the method has high reversible specific capacity and good cyclic charging-discharging performance.

The invention discloses a preparation method of cobalt carbonate with wide particle size distribution. The preparation method mainly comprises the following steps: preparing a cobalt chloride solution and an ammonium bicarbonate solution with different concentrations; synthesizing three different seed crystals through a crystallization kettle, and growing a finished product; and washing cobalt carbonate through a centrifugal machine, and directly drying wet cobalt carbonate dried through a rotary kiln. The prepared cobalt carbonate is uniform in particle size distribution, the particle size distribution coefficient reaches 0.6-0.7, sintering agglomeration is avoided, the tap density is high, and industrialization is easy.

The invention relates to a preparation method for composite trace elements of mutton sheep, and belongs to the field of animal husbandry feed processing. A formula comprises the following raw materials by weight percentage: 1.0-5.0% of copper chloride hydroxide, 5.0-20.0% of manganese sulfate, 5.0-20.0% of zinc sulfate, 10.0-25.0% of ferrous sulfate, 0.5-5.0% of ultramicro calcium iodate, 1.0-5.0%of ultramicro sodium selenite, 1.0-8.0% of ultramicro cobalt chloride and 40.0-60.0% of medical stone. The production cost can be reduced, the slaughtering rate is also greatly increased, and the death rate of the mutton sheep is also greatly reduced.

The invention discloses a formula and treatment method of an abrasion-resisting, anti-friction and life-prolonging nano plating layer of mechanical parts. The formula of an electroplating solution comprises 150-650g/l of ammonia nickel methane sulfonate, 1-50g/l of cobalt chloride, 15-60g/l of boric acid, 2-80g/l of nano tungsten sulfide plating slurry, 0.5-3g/l of cerous sulfate and 0.5-3g/l of 1-2-3-benzotriazole, and the lamellar particle size of the nano tungsten sulfide plating slurry is 40-70 nm. According to the treatment method of the abrasion-resisting, anti-friction and life-prolonging nano plating layer of the mechanical parts, through the electroplating solution with the ammonia nickel methane sulfonate as the main component, the nano tungsten sulfide plating slurry is added toform the electroplating solution, the plating layer has high mechanical properties after electroplating, the ductility, uniformity and corrosion resistance are all greatly improved, the effects of abrasion-resisting, anti-friction and prolonging of the service life are achieved, and good application prospects are achieved.

The invention discloses an additive for preventing and treating heterophagia of livestock and a preparation method of the additive. The additive is prepared from the following components in parts by weight: 1.2 parts of copper salt, 3.6 parts of ferric salt, 2 parts of manganese salt, 1.3 parts of zinc salt, 0.06 part of sodium salt, 0.08 part of cobalt salt, 0.07 part of potassium salt and 7.3 parts of albendazole. Wherein the copper salt is copper sulfate; the heteroedible iron salt is ferrous sulfate; the heterotrophic manganese salt is manganese sulfate; the heterotrophic zinc salt is zinc sulfate; the heterotrophic cobalt salt is cobalt chloride; the isoedible sodium salt is one or a composition of sodium selenite or sodium sulfate in any proportion; the heteroedible potassium salt is potassium iodide; the composition combines various trace elements and minerals with wide sources, effectively prevents and treats mineral nutrition deficiency of milk livestock, can prevent and treat heterophagia, is scientifically processed according to physiological characteristics of the livestock, is easy to absorb by organisms, convenient to use, wide in raw material source, low in preparation cost and simple and convenient in process, and is suitable for industrial production. The device is suitable for wide popularization and use.

The invention discloses a thiazole imine-cobalt compound as well as a synthesis method and application thereof, and the synthesis method comprises the following steps: condensing 2-acetylthiazole and an aniline derivative under different conditions to obtain a corresponding thiazole imine ligand. And reacting the ligand with anhydrous cobalt chloride in tetrahydrofuran at normal temperature to obtain the thiazole imine-cobalt compound. The synthesized cobalt catalyst has different electronic effects and steric effects, and can be used for catalyzing isoprene polymerization.

The invention relates to a preparation method for compound trace elements of breeding rabbits, and belongs to the field of animal husbandry feed processing. A formula comprises the following raw materials in percentage by weight: 5.0-10.0% of copper sulfate, 10.0-20.0% of manganese sulfate, 20.0-35.0% of zinc sulfate, 25.0-40.0% of ferrous sulfate, 1.0-12.0% of ultramicro calcium iodate, 0.5-5.0%of ultramicro sodium selenite, 0.5-5.0% of ultramicro cobalt chloride and 5.0-15.0% of medical stone. Various diseases cannot occur in a breeding process of the breeding rabbits, the disease resistance is improved, the breeding rabbits cannot die, the production cost is greatly reduced, and the rabbit output rate is greatly increased.