63results about How to "Facilitate electrolysis" patented technology

The invention mainly belongs to the technical field of rhodium recovery and particularly relates to a method for recovering rhodium from an inactive rhodium-containing homogeneous catalyst. The methodcomprises the following steps that organic matter in the rhodium-containing homogeneous catalyst is recovered in a distillation mode at first, and rhodium concentrate is obtained; then the rhodium concentrate is mixed with transitional metal M, a reduction agent and a slag former, rhodium is recovered in a smelting manner and forms a low-melting-point Rh-M alloy together with the transitional metal M, then the Rh-M alloy is subjected to electrolysis or acidolysis to obtain rhodium powder, finally the rhodium powder is smelted through an electric-arc furnace, and accordingly a rhodium ingot isobtained. The method is suitable for various inactive rhodium-containing homogeneous catalysts, the situation that the organic matter is directly incinerated to cause air pollution is avoided, meanwhile, the high-melting-point rhodium can be converted into the low-melting-point high-reactivity Rh-M alloy, and subsequent rhodium smelting and purification are facilitated. The method has the advantages of being high in rhodium recovery rate and production efficiency, free of pollution and suitable for industrial application.

The invention discloses a preparation process for producing epoxypropane by two-step extraction, belonging to the technical field of the production of fine chemical intermediates. The preparation process is characterized by comprising the following steps of: adding an extraction agent into aqueous mono-chloropropanol solution, and then extracting out mono-chloropropanol and discharging a water phase from the bottom of a first-stage extraction tower; adding the water phase from which the mono-chloropropanol is extracted into a complexing extraction agent to discharge hydrochloric acid, and discharging the water phase from the bottom of a second-stage extraction tower; pumping the extraction agent of the extracted mono-chloropropanol into a rectification tower, and separating out the mono-chloropropanol and the extraction agent; and pumping the separated mono-chloropropanol into a saponification reactor to perform saponification reaction with sodium hydroxide solution to generate crude epoxypropane, and rectifying the crude epoxypropane to obtain the epoxypropane product. According to the preparation process disclosed by the invention, the aqueous mono-chloropropanol solution is extracted to separate the hydrochloric acid from the aqueous mono-chloropropanol solution after the aqueous mono-chloropropanol solution is prepared by a traditional method, so that the consumption of the sodium hydroxide solution in the saponification process can be reduced, and the cost is saved.

A method for improving TiO2 cathode deoxidizing process by utilizing a carbonaceous additive specifically comprises the following steps: mixing TiO2 and the carbonaceous additive according to the molar ratio of 2:1-19:1, and pressing a mixture into a block body with diameter of 10mm at the pressure of 1-5 t; performing heat treatment in the Ar protective atmosphere at the temperature of 800-1000 DEG C for 2-8 h to prepare a TiO2 / C composite cathode; using the TiO2 / C composite cathode prepared in the step 1 as a cathode, using a graphite rod as an anode, selecting CaC12 fused salt as an electrolyte system, exerting 2-3 V of bath voltage to perform electrolysis under the temperature condition of 800-950 DEG C for 5-20 h, removing an electrolysis product at the cathode, such asTi and TiCxOy compound at the normal temperature after finishing the electrolysis, and using deionized water and dilute acid to wash and remove chloride from electrolyte for many times. The method for improving the TiO2 cathode deoxidizing process by utilizing the carbonaceous additive has the advantages that the electrolysis time is shortened remarkably, the electrochemical reduction speed of the TiO2 cathode is accelerated accordingly, and a small quantity of added carbon powder enable the electrolysis products to become the compound of metal Ti and metal TiCxOy to be Ti and TiCxOy compound. By means of the method, the electrolytic process can be improved remarkably, remarkable reduction of energy loss is facilitated, and accordingly the production cost of the metal Ti is reduced.

The invention discloses a manufacturing method of an aluminium alloy strip used for printing a CTP (computer-to-point) substrate. By reasonably distributing hot rolling and cold rolling deformation, a better compound crushing effect and a dislocation distribution effect can be obtained, the grains are small, and the grain boundary quantity is increased, thus a tissue which is beneficial to electrolysis and can balance factors influencing the electrolysis can be obtained, and the mechanical properties are excellent.

The invention provides a method for organic wastewater electro-fenton treatment adopting bentonite. The method comprises the following steps of 1, adding organic wastewater in an electrolytic cell, 2, adding dried bentonite into the electrolytic cell, 3, adding 0.1 to 0.2mL of a H2O2 solution into each liter of the organic wastewater, and 4, electrifying in the electrolytic cell at an electrolytic cell current of 5 to 40mA with continuous stirring for 3 to 6 hours so that organics in the organic wastewater are degraded by oxidation and is precipitated and separated, wherein an anode of the electrolytic cell is an iron sheet electrode; a cathode is a graphite electrode; after being carried out for 15 to 20min, an electrifying process is stopped for 30 to 40min and the electrifying cycle is repeated; and a stirring rate is in a range of 50 to 150r / min. Organic wastewater treated by the method satisfies discharge standards. Through cation exchange performances of bentonite, iron ions produced by electrolysis are transferred to bentonite layers so that the concentration of iron ions residual in wastewater is reduced and iron ion-modified bentonite having catalytic activity is obtained.

The invention relates to an amorphous Pt nano-catalyst as well as a preparation method and application thereof. The preparation method of the amorphous Pt nano-catalyst comprises the following steps of adding a carbon-containing organic matter into a Pt ion precursor aqueous solution, and reacting at 25-40 DEG C for 10-16 hours to form an amorphous structure while Pt ions in a Pt ion precursor arereduced, therefore, obtaining the amorphous Pt nano-catalyst, wherein the carbon-containing organic matter is selected from at least one of pyrrole and polypyrrole.

The invention belongs to the field of pickling waste liquor resourceful treatment and particularly relates to a method for extracting and recovering Cr(III) from a high acid solution and application.The method comprises the following steps that (1) a double-cell electrolytic tank is fixed through a flat clamp, an anionic membrane with the diameter being around 2.5 cm is arranged in the joint position of the electrolytic tank, high acid pickling waste liquor is poured into an anode electrolytic cell, and a diluted sulfuric acid solution is poured into a cathode electrolytic cell; (2) both an anode and a cathode are lead plate electrodes with the size being 7cm*2cm*0.2cm, a direct current power supply is adjusted after powering-on is performed, electrolyzing is performed under certain current and certain voltage, and the Cr(III) can be oxidized into Cr(VI) after electrolyzing is performed; and (3) a certain amount of a solution obtained after electrolyzing is weighed, an equal amount ofan extraction agent diluted by means of a diluter is added, stirring is performed for a certain period of time in a thermostat water bath, and separation recovering is performed after layering occurs. The method provided by the invention has the advantages that a stoste system is kept, no secondary pollution occurs, the extraction speed is high, the Cr(III) is subjected to extraction separation recovering under high acid severe conditions, equipment is simple, and a great amount of alkali and precipitation reagents do not need to be added.

The invention discloses electroplating wastewater treatment equipment capable of recovering rare metals. The equipment comprises a box body, a base is fixedly mounted on the lower side wall of the box body, a water inlet is formed in the side wall of the upper end of the box body, a water outlet is formed in the side wall of the lower end of the box body, partition plates are fixedly mounted on the inner side wall of the box body, a plurality of electrolysis boxes are mounted on the side wall of the box body, the multiple electrolysis boxes are symmetrically arranged, the partition plates are arranged among the multiple electrolysis boxes, water passing pipes are mounted on the side walls of the partition plates, electromagnetic valves are fixedly mounted on the water passing pipes, and recovering mechanisms used for recovering the rare metals are mounted in the multiple electrolysis boxes correspondingly. The invention further discloses an operation method of the electroplating wastewater treatment equipment capable of recovering the rare metals. The purpose of recovering the various rare metals can be achieved, multiple technological processes are not needed, and the working efficiency of electrolytic recovering is higher.

The invention provides a method and a device for generating novel fuel used in a thermo motor. The device comprises a water circulation system consisting of a water tank, a water pump, a temperature control nozzle which are connected through conduits, and a thermo motor exhaust pipe evaporation-electrolysis device which comprises an indirectly-heated closed container arranged on the heated position of a tail gas exhaust pipe of the thermo motor and a direct current electric field which is arranged in the indirectly-heated closed container and is formed by a positive electrode and a negative electrode, wherein, a water jet of the temperature control nozzle is communicated into the indirectly-heated closed container of the thermo motor exhaust pipe evaporation-electrolysis device; a rotating shaft of the water pump is in transmission connection with a power output shaft of the thermo motor through a transmission mechanism; the temperature control nozzle has a temperature controller which controls the temperature control nozzle to spray water by the temperature of the indirectly-heated closed container; a temperature sensor of the temperature controller is arranged on the indirectly-heated closed container which has a combustible gas exhaust passage connected with an inlet pipe of the thermo motor; and the thermo motor exhaust pipe evaporation-electrolysis device is connected with the top part of the water tank through a gas-guide tube.

The invention relates to the technical field of electroplating corrosion resistance, in particular to a process method for improving electroplating corrosion resistance. The method comprises the following steps of: performing electrolytic degreasing on a workpiece; performing acid pickling and rust removal on the workpiece after overflow water washing; performing alkaline electrolysis oil removal on the workpiece subjected to overflow water washing; performing acid electrolysis on the workpiece subjected to overflow water washing; performing semi-bright nickel plating on the workpiece subjected to overflow water washing; performing full-bright nickel plating on the workpiece plated with the semi-bright nickel; performing chromium plating on the workpiece subjected to overflow water washing; and performing electrolytic passivation on the workpiece subjected to overflow water washing through an electrolytic protective agent, so that the electroplated workpiece is obtained. After nickel and chromium are electroplated on the workpiece, the electrolytic protective agent is added for electrolysis and electrolytic passivation protection of a chromium plating layer, so that the corrosion resistance is improved, and the service life of the workpiece product is effectively prolonged.

The invention relates to a device capable of stably outputting silver ions, which comprises an anode, a cathode, O-shaped seal rings, a water inlet joint, a water outlet joint, an insulation seal cavity, a constant current power supply, a front end clamping cap, a water outlet metal lining, a water inlet metal lining and a housing, wherein the cathode is arranged on the right side in the insulation seal cavity inside the housing, contacts the end surface of the water outlet and is sealed by the O-shaped seal ring; the anode is arranged on the left side in the insulation seal cavity inside the housing and is sealed by the O-shaped seal ring; the water outlet metal lining is installed inside the housing; a water outlet is installed on the water outlet metal lining; a water inlet is installed on the right side of the anode; the water inlet metal lining is installed on the left side of the water outlet joint; the front end clamping cap is installed on the left end of the housing and contacts the water inlet metal lining; and installation force is transferred to the water inlet joint, anode, insulation seal cavity, cathode, water outlet joint and water outlet metal lining through the water inlet metal lining, so that the assembly is closely connected.

The invention provides a method for degrading organic wastewater through the electrolytic stimulation of mineralized refuse supported microorganisms. The method comprises the following steps: adding organic wastewater in an electrolytic cell and then adding the mineralized refuse, wherein the solid-to-liquid ratio of the mineralized refuse to the wastewater is 1:(500-1000) and the electrode materials of the two poles of the electrolytic cell are graphite; and connecting the current of the electrolytic cell, wherein the current between the two poles is 5-40mA; oxidizing and degrading the organic matter in the wastewater after 2-5 hours; and separating out precipitates so that the wastewater can reach the standard to be discharged. By utilizing the adaptability and strong treatment capability of the various floras carried by the mineralized refuse on organic polluted wastewater, the treatment effect can be enhanced; and as the microorganisms attach to the insides of the holes of the mineralized refuse and the impact on the active oxidation groups on electrode surfaces is low, the electrolytic current can be increased, the impact of the outside on the living environment in the holes is low, pollutants are adsorbed near the holes and the pollutants can be easily degraded.

The invention discloses an aquarium water quality monitoring and detection system, which comprises an electrolysis box, a water outlet pipe, a filter ring, a water inlet pipe, a valve, and a sample extraction system. A water inlet pipe is installed on one side of the bottom of the electrolysis box. Installed outside the aquarium, the aquaculture water that enters from the water inlet pipe enters the electrolytic cell, and after electrolysis of sodium ions, observe the attachments on the positive and negative poles to judge the sodium ion content of the aquaculture water at this level. The liquid is discharged from the outlet pipe, and then enters another level of water. It is tested again according to the above method, without sending it to the laboratory, and it is directly tested on the spot. The samples of aquaculture water are taken one by one, and the main pipe is used as the main delivery channel to deliver them to the location of the electrolytic box, so as to realize the extraction of different levels of water in the aquarium, and test while extracting, without loading and unloading in test tubes, which is more convenient for adjustment.

The invention relates to the field of hydrogen chloride preparation, in particular to a hydrogen chloride preparation process and a preparation system. A method for preparing hydrogen chloride by a hydrogen chloride preparation system includes the following steps: S1, adding sodium chloride and water into a reaction box, electrifying two metal columns respectively as positive and negative electrodes, and electrolyzing sodium chloride and aqueous solution to generate hydrogen Sodium oxide, hydrogen and chlorine; S2, the rotation of two gear rings respectively drives the rotation of two drums and two L-shaped plastic columns, and then changes the electrode position during the electrolysis process; S3, when the reaction box is filled with hydrogen and chlorine Hydrogen and chlorine can be extruded from the outlet pipe, and the extruded hydrogen and chlorine are ignited by the igniter to generate hydrogen chloride gas; S4, the hydrogen chloride gas in the sleeve pushes the ball upwards, thereby opening the outlet hole, and then the hydrogen chloride gas is released. The gas reaches the upper part of the fixed cylinder, and the hydrogen chloride gas can be collected by putting a collection bag on the upper end of the fixed cylinder.