798 results about "Cuprous chloride" patented technology

The invention discloses a surface modification method for a polyvinylidene fluoride (PVDF) film or a polyvinyl chloride (PVC) film. The method is characterized by comprising the following steps of: (1) performing vacuum low temperature plasma treatment on the PVDF film or the PVC film at the power of 5 to 100W and the reaction vacuum degree of 2 to 100Pa for 1 to 20 minutes; and (2) mixing a solution which is formed by mixing methanol and deionized water and serves as a solvent, cuprous chloride or cuprous bromide serving as a catalyst, 2,2'-bipyridyl or a derivative thereof serving as a ligand, and sulphobetaine methyl methacrylate or allyl polyethylene glycol serving as a grafting monomer, controlling reaction temperature to 20-100 DEG C, and performing atom transfer radical polymerization (ATRP) reaction for 1 to 24 hours to obtain a product, wherein the molar ratio of the catalyst to the ligand is 1:(0.5-4), and the molar ratio of the film to the monomer is (100-0.1):1. The methodhas the advantages that: the hydrophilicity and anti-pollution capacity of the film can be improved, environment friendliness is achieved, and operation steps are simple.

The present invention provides an electrochemical cell for producing hydrogen gas and cupric chloride, comprising an anode compartment including an anode disposed in an anolyte, wherein the anolyte is cuprous chloride in hydrochloric acid, a cathode compartment including a cathode, wherein the cathode comprises an electrocatalyst, and a cation exchange membrane disposed between the anode compartment and the cathode compartment.

This invention relates to a method for prparing temperature-sensitive polyvinylidene flourine intelligent membrane. The method is: NIPA as grafted monomer, PVDF as macromelocular initiator, cuprous chloride as catalyst,4,4 demethyl 2,2 bipyridine as ligand, using atom transfer free radical process, preparation of temperature-sensitive polyvinylidene flourine intelligent membrane comprising: in reaction kettle, adding 7-13% PVDF(WT%) and solvent N-methyl-2-pyrrolidone,heating to 50 deg. C to make it solve completely; then adding grafted monomer NIPA, its mol ratio with cuprous chloride is 2000:1-2500:1,filling nitrogen gas 30mins. at stirring, and separately adding 0.20-025g ligand 4,4-dimethyl 2,2-bipyridine and 0.04-0.06g catalyst cupous chloride, stirring and heating to 80-120deg.C,constant reaction 19-25 hrs; then washing reaction product using pure water to obtain light brown solid, filtering and 80 C degree drying to obtain finish product.

The invention provides a preparation method of a catalyst used in hydrogenation of silicon tetrachloride, which comprises the following steps of: mixing cuprous chloride after pretreatment and silicon powder in an agitated bed reactor, and performing heated reaction on the mixture under a hydrogen condition, wherein the pretreatment refers to putting the cuprous chloride into the silicon tetrachloride, stirring and heating the mixture, and drying the mixture in a shielding gas after filtration. The invention also discloses a method for applying the catalyst in the hydrogenation of the silicon tetrachloride, which comprises the following steps of: premixing the silicon tetrachloride and hydrogen gas to form a gas mixture; adding the gas mixture and the catalyst into a fluidized bed reactor for reaction; and separating a product of trichlorosilane from a reaction tail gas. The catalyst prepared by the method has high catalytic efficiency and greatly improves the yield of the trichlorosilane.

The invention discloses a method for synthesizing copper-indium-selenium nanocrystalline and relates to a solar cell material. The invention provides a method for synthesizing copper-indium-selenium nanocrystalline with simple technological steps. The method comprises the following steps: mixing dodecyl mercaptan and oleyl amine to obtain a mixed solvent; adding an elementary substance selenium, and dispersing to obtain an evenly dispersed elementary substance solution; adding cuprous chloride and indium chloride into an oleic acid-octadecylene mixed solvent, heating while stirring, vacuumizing, so that the vacuum degree of the system is lower than -0.1 MPa, and introducing nitrogen to obtain an oleic acid-octadecylene composition of cupric salts and indium salts in the nitrogen atmosphere, wherein the oleic acid-octadecylene composition of cupric salts and indium salts is a light-brown transparent solution; and injecting the prepared selenium solution into the oleic acid-octadecylene composition of cupric salts and indium salts, heating to carry out the reaction, centrifugating to obtain a precipitate, and respectively washing the precipitate with methenyl chloride and ethanol at least once to obtain the copper-indium-selenium nanocrystalline.

The invention belongs to the field of chemical separation and discloses an olefin-alkane separating adsorbent, a preparation method thereof and an application of the olefin-alkane separating adsorbent in olefin-alkane separation. The olefin-alkane separating adsorbent takes porous carbon with a high specific surface area and ordered pore passages as an adsorbent carrier, and cuprous chloride as an active component, wherein the loading amount of univalent copper is 2-12 mmol in per gram of the carrier; the cuprous chloride and the porous carbon are fully ground and thermally treated in an inert atmosphere to prepare the olefin-alkane separating adsorbent. The olefin-alkane separating adsorbent contacts olefin and alkane so as to separate the olefin from the alkane by an adsorption method. The olefin-alkane separating adsorbent is easy to prepare and good in adsorption effect and can still maintain a relatively good adsorption effect after adsorption regeneration.

The invention relates to a blind hole, buried hole, and porefilling craft for a multi-layer high-density interconnect printed circuit board, which is characterized in that the blind hole, buried hole, and porefilling craft for a multi-layer high-density interconnect printed circuit board firstly generates even brick red or black oxide layer on the copper surface of a printed circuit board provided with bores utilizing liquid medicine; with roughness of the generated oxide layer, the oxide layer can be closely connected with an adhesive tablet and can avoid an influence on reliability of the product from the surface of pig copper and cuprous chloride formed by a pressing high temperature reaction; then a traditional screen printing is carried out. The craft is characterized in that resin is filled into an appointed hole and laminating of the adhesive tablet is carried out within a time limit, then a vacuum compressing craft is carried out. The blind hole, buried hole, and porefilling craft for a multi-layer high-density interconnect printed circuit board can shorten the production labor hour and improve productivity.

The present invention relates to a copper base catalyst, which comprises a catalyst main body and a co-catalyst, wherein the catalyst main body comprises copper powder and/or a copper powder oxide, cuprous chloride and copper chloride. The copper base catalyst preparation method comprises: adopting a formula amount of copper powder and/or a copper powder oxide, cuprous chloride, copper chloride and a co-catalyst as raw materials, and carrying out mixing or mixing grinding. According to the present invention, the cooper base catalyst has high selectivity and a high conversion rate in the field of organic silicon monomer synthesis, the preparation method has characteristics of simple operation and simple process, and large-scale production is easily achieved.

A polygonal crystalline copper powder with high dispersity and diameter uniformity (1-5 microns) is prepared through preparing the solution of Cu salt and the solution of reducer, adding disperser and ammonia water to both solutions, mixing, reacting, separating, washing and drying.

The invention relates to an improved water system nieuwland catalyst and an application method thereof. The catalyst comprises cuprous chloride, ammonium chloride and aqueous solution of hydrochloric acid in a nieuwland catalytic system, and also comprises organic amine, organic ion liquid and organic ether. In the specific preparation step, the addition sequence of the cuprous chloride, the ammonium chloride and the hydrochloric acid is adjusted, and the organic amine, the organic ion liquid and the organic ether are sequentially added into the mixture. The catalyst improves the performance of the conventional nieuwland catalyst, and can improve the conversion per pass of acetylene and the selectivity of vinyl acetylene simultaneously in a process of preparing the vinyl acetylene by applying the nieuwland catalyst; and the organic amine, the organic ion liquid and the organic ether are less in dosage and can be recycled, and thus the improved water system nieuwland catalyst has the advantages of low cost, simple method, high efficiency and the like.

A process for preparing cuprous chloride from the used etching liquid of copper chloride includes adding copper oxide to said used etching liquid, filtering, heating the clear solution, stirring while filling SO2 gas, cooling, filtering to obtain crystals, washing with diluted hydrochloric acid and then with alcohol, and drying.

The invention discloses a method for preparing cuprous chloride-modified honeycomb activated carbon for absorbing nitric oxides (NOx less than or equal to 50ppm) with high efficiency normal temperature and normal pressure. In the invention, two times of isovolumetric impregnation are adopted for modifying honeycomb activated carbon. Firstly, cuprous chloride mixed solution using an amine-containing solvent is used as a modifier, and the cuprous chloride mixed solution is loaded on a carrier by isovolumetric impregnation; and secondly, the carrier is dried, and oxidizing activation is performed by isovolumetric impregnation with a strong oxidant solution. The honeycomb activated carbon has the characteristics of high NOx conversion and absorption efficiency, high absorption capacity, low cost, simple preparation process and the like.

The invention discloses a method for removing fluorine and chlorine from a zinc electrolyte, and belongs to the technical field of zinc smelting. According to the method, zinc-containing smoke dust generated in a zinc hydrometallurgy process is leached by using a zinc electrolysis waste liquid, sulfuric acid in the zinc electrolysis waste liquid is used as a leaching agent of zinc in the smoke dust, meanwhile steam is adopted for heating, and the zinc electrolysis waste liquid is used for leaching the zinc-containing smoke dust; and the zinc, the fluorine and the chlorine enter a leaching solution, a step-by-step precipitation method is adopted, the zinc in the solution is precipitated and returns to a zinc smelting system, the fluorine and the chlorine are converted into calcium fluorideand cuprous chloride to be precipitated and removed, the fluorine content in the zinc electrolyte can be reduced to 50 mg/L or below through a certain period of treatment, then the chlorine content isreduced to 200 mg/L or below, and the damage of the fluorine and the chlorine to zinc electrolysis is effectively avoided. The method has the characteristics of being low in cost, high in efficiencyand high in adaptability.

The invention discloses a dechlorination method of a zinc sulfate solution, which comprises the steps that sulfuric acid is added to a zinc sulfate solution containing 100-150g/L zinc and 0.5-5.0g/L chlorine; an acid solution with the sulfuric acid concentration of 20-75g/L is obtained; the acid solution is subjected to selective electrodialysis in four diaphragm electrolytic cells at a room temperature and at the current density of 50-200A/m<2>; a low-chlorine solution containing 0.1-0.3g/L chlorine and a high-chlorine solution containing 5-20g/L chlorine are obtained; the low-chlorine solution is used for producing electric zinc; the high-chlorine solution is subjected to chlorine precipitation by a cuprous chloride method; a chlorine precipitation solution containing 0.4-1.0g/L chlorine is obtained; zinc powder is added to the chlorine precipitation solution for replacing and removing copper; a copper removal solution containing 0.4-1.0g/L chlorine is produced; the copper removal solution is returned for acid addition, and subjected to the selective electrodialysis. With the adoption of the method, chloride ions in the zinc sulfate solution can be removed at low cost and high efficiency.

The invention relates to a production process for comprehensively recovering valuable metal of copper, cobalt and iron alloy, belonging to the technical field of hydrometallurgy and comprising the steps of: preparing fine alloy powder with the mesh of -100 by vibrating, grinding, screening and grading the copper, cobalt and iron alloy; adding water to the fine alloy powder to stir; then adding a required theoretical quantity of fluorine ions F-; adding inorganic acid to react for 1.5 hours; slowly adding oxidant solution; stirring for 1.5 hours at the continuous temperature of larger than 85 DEG C after adding the oxidant solution; separating solid from the solution; adding a reducer whose use quantity is 1.05 times of the theoretical quantity to the obtained filtrate; stirring at normal temperature; reacting for 2 hours; obtaining cuprous chloride and pre-extraction solution after filtering; and finally carrying out P204 extraction and P507 extraction on the pre-extraction solution; and evaporating and crystallizing to obtain cobalt chloride. The production process has the advantages of environmental-friendly performance, simple operation, high efficiency, energy saving and suitability for industrial production.

A coprous chloride catalyst used for preparing organosilicon monomer with high activity, selectivity and output rate is prepared through reduction reaction for reducing the mixed solution of Cu and Cl ions by SO3 solution while adding disperser for controlling the granularity and form of product, liquid-solid separation, acid washing, alcohol washing, filtering washing and drying.

The invention discloses a catalyst for preparing vinyl acetylene and an application method thereof; the components of the catalyst include cuprous chloride, water, organic solvent, organic amine salt and organic ionic liquid. The application method includes steps that: under deoxygenation condition, the organic amine salt is dissolved in the solution of the organic solvent; and then cuprous chloride and organic ionic liquid are added to the solution; acetylene gas is introduced while the temperature is maintained constantly to produce vinyl acetylene. The invention improves the performance of an acetylene dimerization catalytic system, also increases the conversion per pass of acetylene and vinyl acetylene selectivity, produces less byproduct during reaction, greatly reduces the content of acetylene high polymer and accordingly reduces the separation difficulty and the production cost.

The invention provides a novel growth method of a two-dimensional organic polymer through two-dimensional crystal surface catalysis. A solid-liquid interface rapid preparation method is adopted to directly prepare a two-dimensional cuprous chloride nano-crystal material which has template and catalysis effects on a copper foil substrate; 1,3,5-tribromobenzene and p-phenylenediamine are used as monomer molecules; polymerization reaction is directly carried out on the surface of a two-dimensional cuprous chloride nano-crystal which is used as a catalyst, so as to obtain the two-dimensional organic polymer. According to the method disclosed by the invention, the two-dimensional organic polymer is prepared from specific monomers by utilizing surface-catalyzed reaction and two-dimensional organic polymerization reaction types are widened.

The invention provides a method for preparing activated rubber powder by catalytic reaction and activating reaction, and relates to a method for comprehensive utilization of waste and scrap rubber. Compared with the production of regenerated rubber, the method reduces processes of desulfurizing, kneading and refining, thereby avoiding secondary pollution to the environment. The prepared activated rubber powder has excellent compatibility with matrix rubber, and improves the physical and mechanical properties of the product. The formulation comprises the following compositions in weight portion: 100 portions of 30 to 40 meshes of waste rubber powder, 8 to 17 portions of plasticizer-dipentene, 5 to 8 portions of dusting agent-pottery clay, 0.2 to 0.5 portion of catalyst-cuprous chloride, 7 to 1.0 portion of promoting agent-polyalkylphenol disulfide, and 1 to 2.5 portions of dispersing agent-ethanol. The method comprises the following steps: placing the 30 to 40 meshes of waste rubber powder into a high-speed stirring reactor, and heating the waste rubber powder to the temperature of between 80 and 100 DEG C; adding the plasticizer, the dusting agent, the catalyst, the promoting agent and the dispersing agent into the reactor sequentially for reacting for 10 to 20 minutes at a temperature of between 80 and 120 DEG C, and cooling and discharging to produce the activated rubber powder. The prepared activated rubber powder can be used in rubber industry and building industry.

A process for preparing the cuprous chloride crystal by static-pressure hydrothermal hydrolysis includes such steps as dissolving copper sulfate and sodium chloride in solvent, regulating its acidity, adding excessive red copper powder, boiling while reflux reaction, adding hydrochloric acid to dissolve generated cuprous chloride crystals, filtering to remove residual copper powder, adding water heating to 105-150 deg.c in sealed state, static-pressure hydrothermal hydrolyzing, filtering, washing and drying.

The invention is a kind of preparation craft of copper chloride crystal by hydrothermal reduction method, confect bluestone and sodium chloride into mixed water solution, transmit them into pressure and resistant autoclave, add reducer of formaldehyde which then is heated to temperature of 130 degree C-170 degree C closely, make them react for 3-12 hours by hydrothermal reduction method and form copper chloride crystal, cool it and then filter, absterge and dry the filtered crystal according to general method, then get product wanted. In the course of preparing copper chloride crystal in the invention, it uses formaldehyde as reducer, liquor and formaldehyde reducer reacts in the close autoclave directly by hydrothermal reduction method, form product wanted of copper chloride crystal for one step. The preparation craft is simple and easy to control, save water and energy, there is no harmful gas and liquid to discharge, the mother liquor filtered copper chloride crystal can be used circulatoryly after being disposalled, and it has double superiority of environmental protection and energy-conservation.

The invention relates to an acetylene copolymer nonaqueous system catalyst and a method for preparing vinyl acetylene. The catalyst comprises cuprous chloride, organic ether, organic ion liquid, organic amine hydrochlorides, organic pentatomic or hexahydric nitrogen heterocyclic ring compounds, and N,N-dimethyl formamide. In the process of preparing vinyl acetylene, the cuprous chloride is added after other components are thoroughly mixed. The catalyst improves the properties of the prior Nieuland catalyst, and can keep the conversion per pass of the acetylene to be constant, obviously enhance the selectivity of the target product vinyl acetylene and the single-pass conversion rate of acetylene at the same time; and since the amounts of organic pentatomic or hexahydric nitrogen heterocyclic ring compounds, and organic ion liquid is small, and all the components can be recycled, so that the invention also has the advantages of low cost, simple method, high efficiency and the like.

A preparation method for 3,4'dichloro diaryl ether is disclosed, which comprises the following steps of: (1) preparation for potassium alkoxide or sodium alkoxide; (2) preparation for potassium p-chlorophenolate; (3) preparation for active cuprous chloride; and (4) preparation for 3,4'dichloro diaryl ether. The preparation method has the following advantages that: side reactions are greatly reduced, reaction speed is fast, the pollution caused by the volatilization of benzene solvents is reduced, the utilization rate of equipment and the like are increased, the quality of product is improved, as well as yield and chilling efficiency are increased by using p-chlorophenol waterless salifying process, using newly-prepared catalyst, optimizing the ratio and pouring method of materials, and protecting by inert gas.