35 results about "Nickelous Chloride" patented technology

The invention discloses organic phosphates containing an ethyoxyl (CH2CH20) unit, a preparation method and application thereof. The organic phosphates have the following structural general formula: in the formula, n is 1 or 2; R can be CH3 or C2H5 or CF3CH2; and radicals of two R are the same. The preparation method is to heat ethylene glycol monomethyl ether containing chloromethyl or diethylene glycol monomethyl ether containing the chloromethyl and phosphite ester containing an R radical as raw materials by taking absolute nickelous chloride as a catalyst for a sufficient reaction, and distill at reduced pressure so as to obtain the organic phosphate. The organic phosphate prepared by the method has excellent flame retardance, thermal stability and excellent electrochemistry performance, can be used as secondary lithium ion battery high-safety electrolysing solution, and has wide industrial application prospect. The method has the advantages of simple steps, short time, completion in a common laboratory and easy popularization.

The invention relates to a technology for preparing a nickel shaped charge liner through a nickel sulfamic acid electroforming method, which belongs to the technical field of electroforming preparation. The key technology is the preparation of electroforming solution; nickel sulfamic acid, nickelous chloride, boric acid, saccharine and deionized water are added into an electroforming bath; and then the stirring speed is regulated, temperature is raised and preserved; sodium dodecyl sulfate, butynediol and deionized water are added into a glass container to be stirred and heated to boil; after the sodium dodecyl sulfate and the butynediol are dissolved, the well mixed solution in the glass container is poured into the electroforming bath; the deionized water is injected to the required volume and then stirred, and the temperature is preserved for 10h to 30h. Follow-up procedures comprise cathode mandrel and electroformed nickel anode pre-treatment, electroforming and cathode demoulding. The technology has the advantages that the technology can prepare the nickel shaped charge liner with stable performance, and can conveniently and effectively control the grain size of the electroformed nickel so as to control the performance of the electroformed nickel.

The invention relates to a galvanized chromium-free black passivating agent and a preparation method thereof. The galvanized chromium-free black passivating agent comprises the components such as nickelous chloride, molybdate, ammonium sulphate, a pH acid regulator, water and the like. The preparation method comprises the following steps of: operating the black passivating agent at the operation temperature of 20-40DEG C and the pH value of 4.0-5.0 for 0.5-1.5 minutes; preparing materials according to the mass fraction of various components; adding 50-70 percent of water in the raw materials into a stirring device; sequentially feeding other components; finally, adding residual water; and stirring for at least five minutes to obtain a finished product. The galvanized chromium-free black passivating agent has no hexavalent chrome and trivalent chromium, is suitable for black passivation of galvanized parts, can obtain a glossy black effect same as the passivation of the hexavalent chrome and the trivalent chromium and can meet the requirement of products. Before the galvanized chromium-free black passivating agent is dried, workpieces are not easily ground; and the passivated galvanized chromium-free black passivating agent is glossily black without being closed. The galvanized chromium-free black passivating agent has the advantages of strong corrosion resistance, no pollution, easiness in wastewater treatment and simpliness in operation.

The invention belongs to the freezer technical field, in particular to an adsorption freezer adopting a liquid receiving cartridge heater. The adsorption freezer comprises a high-pressure valve, two adsorption barrels, a liquid receiving cartridge heater, a high-pressure output valve, a condenser, a liquid receiving bottle, a throttling valve, a multiple-pipe evaporator, a liquid inlet valve, a hot water tank and a fan, wherein, the adsorption barrel consists of an outer adsorption barrel, an adsorption agent container, a heating pipe and an adsorption agent arranged inside the adsorption agent container; liquid ammonia is stored inside the liquid receiving heating barrel container; the adsorption agent is composite adsorption agent which is made of a plurality of compositions of the following: lime chloride, strontium chloride, manganese chloride, nickelous chloride, active carbon fibers, silica gel, graphite powder, graphite lath, active carbon and alumina; the method for producing the composite adsorption agent is as follows: the compositions, the graphite lath and a slim tube with a hole are placed inside the adsorption agent container and are pressurized to form. The adsorption freezer adopts the chemical adsorption theory to combine the heat energy of external heating and the heat energy of the chemical adsorption heat and to high-temperature heat and cool, thereby saving energy and protecting the environment.

The invention relates to an electrochemistry preparation method for an electrochromism magnesium-nickel alloy film. Firstly, an organic solvent N,N-dimethylformamide is dried for 48 hours by an activated 4 molecular sieve, then is decompressed and distilled to remove the impurities; then the main salt dehydrate and nickelous chloride as well as the lithium perchlorate supporting electrolyte are respectively dried for four hours under the vacuum with the temperature of 150 DEG C and then placed in an vacuum drying box for spare; then the nicks and the oil stains on the surface of a copper sheet are removed; the main salt and the organic solvent N,N-dimethylformamide used for supporting electrolyte are prepared into liquid with the concentration of 0.2mol/L of the dehydrate, the concentration of 0.2mol/L of the lithium perchlorate and the concentration of 0.02mol/L of the nickelous chloride; argon is pumped into the liquid so as to expel the oxygen dissolved in the N,N-dimethylformamide; finally the magnesium-nickel alloy film is obtained by carrying out electrochemistry deposition under the constant temperature and constant potential condition by a three-electrode system. The method is simple, needs no complex post treatment working procedures like heat treatment and can effectively control the light transmittance and the reflectivity of the film.

The invention discloses a method for catalytically synthesizing phenazine compounds in a water phase under microwave radiation, which comprises the following steps: adding a catalytic amount of catalyst ferric chloride or nickelous chloride, a cocatalyst lithium proline, a substrate substituted 2-haloaniline, a phase-transfer catalyst 4-butyl ammonium chloride, 4-butyl ammonium bisulfate or 4-butyl ammonium bromide, an inorganic alkali or organic alkali and water into a reaction vessel, putting into a microwave reaction instrument, reacting at certain temperature under certain power for some time, concentrating under reduced pressure, and purifying the product by column chromatography. The method for preparing phenazine compounds is friendly to the environment, simple to operate and high in efficiency. Compared with the prior art, the method has the advantages of obviously higher reaction speed than conventional heating, mild reaction conditions, high yield, high safety, low cost and environment friendliness, and is simple to operate.

The invention discloses a method for restoring the frictional surface and the wearing surface of metal and mixed powder specially used in the method and relates to a restoring method and mixed powder used in the method. The method solves the problems that the prior restoring method has slow restoring speed, unobvious restoring effect and the prior restoring material has no compositions which have the functions of cleaning and activating the metal surface. The method comprises the following steps: A mixed powder which has the functions of cleaning and activating the frictional surface and the wearing surface of the metal is prepared; B mixed power which has the functions of restoring and introducing a material, reacting, releasing heat and increasing heat energy is prepared; the A mixed powder is added into lube of the frictional surface and the wearing surface of the metal; and the B mixed powder is added into lube of the frictional surface and the wearing surface of the metal. The A mixed powder consists of nickel-clad diamond powder, nickelous chloride powder and magnesium stearate. The B mixed power consists of enstatite powder, calcium carbonate powder, rose aurora powder, nickel-clad aluminum powder, nickel iron alloy powder, yttria powder and magnesium stearate. The method and the mixed powder used in the method can achieve the aim of rapidly restoring the micro-disadvantages of the frictional surface and the macro-wearing disadvantages of the wearing surface of the metal.

The present invention relates to a process for preparing tin-cuprum-cobalt-nickel alloy material materials by utilizing two-step electric plating. Said process consists of two steps of electric plating courses such as modification layer electric plating and activation layer electric plating, wherein said modification layer plating solution consists of nickelous chloride of 50-280g, cobalt chloride of 10-180g, boracic acid of 1-50g and distilled water of 800-900mL, with a temperature of 20-75 DEG C and an electric plating time for 0.2-30 minutes; the activation layer plating solution consists of sodium stannate of 5-60g, sodium hydrate of 5-60g, sodium acetate of 5-50g and distilled water of 800-900mL, with a temperature of 40-80 DEG C and an electric plating time of 0.2-50 minutes. Said two steps of electric plating are carried out at any electric current density of the siding-to-siding block of 0.1-1.5 A/dm2. The raw material in accordance with the present invention has a lower cost and a wide source, with a simple preparing process and few time consumption. Said electrode material possesses excellent discharging performances and charging-discharging cycling stability, with its first discharge capacity being higher than 400mAh activity material, exhibits excellent circulation performances, can have application in lithium ion battery, lithium battery, polymer lithium ion battery, especially thin film-type power cell.

The invention provides an iron ion circulating electrode which contains ferric sulfate, graphite powder, kaolin and nickelous chloride and has a porous structure. The invention also provides a method for preparing the iron ion circulating electrode, which comprises the steps: the graphite powder, the ferric sulfate, the kaolin, the nickelous chloride and pore creating material are mixed together for ball milling, and then the mixture processed by ball milling is pressed for forming under the pressure intensity of 10-30kgf/cm<2>; after that, the formed mixture is calcined for 8-15 hours at the temperature of 1000-1200 DEG C in shielding gas atmosphere. Compared with the existing iron ion circulating electrode, the iron ion circulating electrode (especially prepared by the method of the invention) can be taken as the cathode of a microbiological fuel cell, so as to remarkably improve the output power density of the microbiological fuel cell.

The invention discloses a multi-layer Ni-Fe alloy complexly smearing-plating technique. It includes: make degreasing and rust cleaning on metal surface; make the mixing solution (A) of nickelous chloride, natrium acetate, nickel sulfate, ferrous sulphate and ferrous chloridize; make saturated solution (B) by using amido-sulfonic nickel, nickelous chloride and boric acid; first smear A, then smear B to make the thickness reaches the requirement, and then mix A and B to make mixing solution (C) which is evenly smeared on the coat surface.

This invention relates to a neutralization-free furfural wastewater biochemical treatment craft. First furfural wastewater enter balancing tank, then enter upwash type anaerobic sludge bed reactor by the exaltation of slush pump, add furfural wastewater nutrient solution and granular activated carbon to the pool of upwash type anaerobic sludge bed reactor; then the water after disposing of upwash type anaerobic sludge bed reactor enter vertical sedimentation tank, then influx intermediate pool; water in the intermediate pool according to sequencing batch type activated sludge process enter pool by the exaltation of sequencing batch type activated sludge process influent pump; the water from pool of sequencing batch type activated sludge process enter clean water basin, then reclaimed or discharged. The described nutrient solution according to weight is mixture of urea 80.47%, trisodium phosphate 13.44%, white ash 3.17%, iron power 0.56%, ferrous sulfate 0.56%, magnesium sulfate 0.43%, cobaltous chloride 0.097%, nickelous chloride 0.073%, zinc chloride 0.48%, cupric sulfate 0.24%, vitamin B5 0.24% and vitamin B12 0.24% and water.

The inventions are sorts of magnesium, magnesium alloy which is compound plating coat of high anti corrosion, and their preparation technics. They belong to domain of surface treatment of non-ferrous metal. Compound plating coat based on the chemical nickel coat, the thickness of which is between 20 and 25 micron. The callow of it is electrolytic zinc plating and nickel alloy, the thickness of which is between 8 and 10 micron. The following is the preparation craftwork; the chemical nickel plating of magnesium alloy adopts the standard B480-88 of American material experimentation association. Plating time is between 1.4 and 2 hours. The coating thickness if between 20 and 25 micron. The content of phosphor in the plating layer is 9-12%; electrolytic zinc plating and nickel alloy: the plating liquid of it and technics conditions are followed: sodium hydroxide 8-15%, zinc oxice 2-5%, nickelous chloride 0.5-3%, ethylamine 2-4%; tiethanolamine 2-4%, nylander reagent 0.5-3%, DE0.2-0.8%, sodium dodecanesulphonate 0.01-0.1%, the overmeasure is water. Curl density is 0.5-5A/dm2. Plating time is 30 minutes.

The invention relates to a preparation method of top-grade pure nickelous chloride, which comprises the following steps: (1) reaction between nickelous carbonate and hydrochloric acid: putting nickelous carbonate in a glass beaker, heating to 65 DEG C, slowly adding hydrochloric acid (the specific gravity is 1.18) while continuously stirring and controlling the reaction temperature at 75 DEG C, stopping adding the hydrochloric acid when the pH value is 5, standing for 20 minutes, and filtering to obtain a solution A; and (2) preparation of top-grade pure nickelous chloride by concentrating: concentrating the solution A obtained in the step (1) to 20 degrees Be while controlling the temperature at 240-260 DEG C, stopping concentrating, cooling, and carrying out suction filtration to precipitate a crystal, thereby obtaining the top-grade pure nickelous chloride. The preparation method has the advantages of simple processing steps, controllable operation steps, advanced technique and high production efficiency. The prepared product has the advantages of high purity and low impurity content, and satisfies the demands of high-end technology.

The invention relates to a surface processing method and the processing liquid of a successive casting roller, more particularly, relates to the electric plating method and the electric plating liquid to the surface of a thin belt successive casting crystallizing roller. The electric plating method mainly aims at solving the technical problems that the thickness of the plated layer obtained with the prior method is not even enough and the overall property of the plated layer is slightly inadequate. The electric plating method in the invention comprises two steps namely preprocessing before plating operation and electric plating operation of a metallic nickel. During the step of preprocessing before plating operation on the surface of the successive casting crystallizing roller, the step includes the following operations: organic solvent cleaning, alkali degreasing, electrolytic degreasing, acid etch and activatory process. Within the step of electric plating operation of a metallic nickel, the components of the electric plating liquid consists of nickel sulfamic acid Ni (NH2SO3)2.4H2O 250 to 380gs per l, nickelous chloride NiCl2.6H2O 8 to 15gs per l, boric acid H3BO3 25 to 40gs per l and dodecyl sodium sulfate CH3(CH2)10CH2OSO3Na 0.05 to 0.1gs per l. when in electric plating operation, the electric current density within the original 4 to 12 minutes is 0.5 to 2.0A per dm2, the electric current density in normal electric plating operation is 1.0 to 5.0A per dm2 and the rotating speed of a roller is 2 to 7 cycles per minute. The obtained metallic nickel plated layer has strong intensity with the substrate and further has the advantages of low stress, even thickness, fine flexibility, friction bearable, excellent cold and hot resistant and antifatigue properties.