30results about How to "Increase the electrolysis area" patented technology

The invention discloses an integrated multi-point-surface electrolysis module device, belonging to water electrolyzers and relating to drinking water electrolysis devices. The device consists of a plurality of cathode or anode rings (1) made from inert metal materials, wherein the cathode or anode rings (1) are of staggered distribution from inside to outside, so as to form a plurality of electrolysis zones of big and small gaps. The invention further discloses an electrolysis cup with the integrated multi-point-surface electrolysis module device. According to the integrated multi-point-surface electrolysis module device, the electrolysis area is large, the occupied internal space of the cup is small, the efficiency is high, the power consumption is low, and drinking water can be effectively electrolyzed, so that the drinking of a human body is healthier.

The invention relates to a method for preparing high-purity chromate by using ferrochromium, wherein the method comprises the steps: providing an electrolytic device including an electrolytic tank, adouble-cathode device, a double-anode device, an insulating partition plate, a plurality of settling tanks and an electrode; carrying out an electrolytic reaction by a self circulating mode, automatically controlling the temperature at 20 DEG C-60 DEG C, and controlling the electrolyte solution circulating reaction time according to the formula 1 described in the specification, to obtain a high-concentration chromate solution; and inducing the high-concentration chromate solution into a reaction kettle, carrying out a hydrothermal reaction, under the pressure of 2 MPa-10 MPa, heating to the temperature of 180 DEG C-300 DEG C, carrying out a reaction for 2 h-12 h to obtain a hydrothermal reaction slurry, carrying out solid-liquid separation to obtain the high-purity chromate purification solution, and carrying out evaporation concentration, cooling crystallization and filtration separation to obtain the high-purity chromate product.

The invention relates to a method for preparing chromic anhydride by using ferrochromium, wherein the method comprises the steps: carrying out an electrolytic reaction by a self circulating mode, controlling the circulating reaction time according to the formula described in the specification, to obtain a high-concentration chromate solution, and carrying out a hydrothermal reaction, to obtain a high-purity chromate purification solution; preparing a chromate solution with the mass concentration of 20%-40% with the high-purity chromate purification solution, mixing the chromate solution with adichromate solution with the mass concentration of 23%-50% to prepare an anode mixed feed liquid, and carrying out an electrolytic reaction to obtain a dichromate solution; and adjusting the concentration of the obtained dichromate solution to 27%-73%, taking the obtained dichromate solution as a raw material, carrying out an electrocatalytic synthesis reaction to obtain a mixed solution of chromic acid and dichromate, and carrying out crystallization separation to obtain chromic anhydride.

The invention relates to a device for preparing a high-concentration chromate solution, wherein the device comprises an electrolytic tank, a double-cathode device, a double-anode device, and a plurality of settling tanks; the electrolytic tank comprises a cylindrical main body part and a conical collection part, the upper end of the main body part is provided with an electrolyte solution inlet, and the lower end of the main body part is provided with an electrolyte solution outlet; an inner cathode is arranged in the electrolytic tank, and the cylindrical main body part of the electrolytic tank is used as an outer cathode; the double-anode device comprises a cylindrical inner anode and a cylindrical outer anode arranged outside the cylindrical inner anode in a sleeving manner, and the inner cathode is arranged inside the inner anode in a sleeving manner; an insulation partition plate is used for supporting the double-anode device; each settling tank is provided with a feed port and a discharge port, the feed port of the first settling tank is connected with a discharge port of the electrolytic tank, the discharge port of the first settling tank is connected with the feed port of the second settling tank, and in the way, the discharge port of the last settling tank communicates with the electrolytic tank.

The invention discloses a method for preparing dichromate by using ferrochrome. The method comprises the following steps: an electrolyte solution undergoes an electrolytic reaction in a self-circulation mode, the temperature of the electrolyte solution in an electrolytic cell is automatically controlled to be 20-60 DEG C, the circulating reacting time for the electrolyte solution is controlled according to a formula 1 being t=c1*V1*M2 *Eta / (2*n*M1*I), and a high-concentration chromate solution is obtained; hydrothermal reaction is carried out on the high-concentration chromate solution to obtain a high-purity chromate solution; the high-purity chromate solution is prepared into a chromate solution with the weight percent concentration of 20%-40%, and the prepared chromate solution is mixed with a dichromate solution with the weight percent concentration of 23%-50% to prepare an anode mixed feeding liquid; and a cathode mixed feeding liquid is provided, and the electrolytic reaction is carried out on the anode mixed feeding liquid and cathode mixed feeding liquid to obtain a dichromate solution.

The invention discloses a plasma high-efficiency sewage treatment device and a treatment method thereof, comprising a reaction container, a first plasma electrode assembly, a second plasma motor assembly, an atomization assembly, a layered plate and a rectification assembly, the reaction container It is an inner cavity structure, the layered plate is horizontally placed in the inner cavity of the reaction container, and the inner cavity of the reaction container is divided into the first reaction chamber of the upper layer and the second reaction chamber of the lower layer by the layered plate, so The atomization assembly and the first plasma electrode assembly are respectively arranged above the layered plate, the rectification assembly is arranged in the second reaction chamber, the second plasma electrode assembly is arranged on the rectification assembly, and the second The aqueous solution after the electrolysis of the plasma electrode assembly can ensure the full electrolysis of the sewage solution, and rectify the sewage water flow to ensure the stability of its electrolysis effect.

The invention relates to a method for preparing chromium oxide green by using ferrochrome, comprising the steps of: providing an electrolysis device, including an electrolysis cell, a double cathode device, a double anode device, an insulating partition, a plurality of settling tanks and electrodes; adopting a self-circulation method to carry out The electrolysis reaction is automatically controlled at 20°C to 60°C, and the electrolyte cycle reaction time is controlled according to formula 1. After solid-liquid separation, a high-concentration chromate solution is obtained; the high-concentration chromate solution is introduced into the reactor for hydrothermal reaction , under the pressure of 2MPa~10MPa, heated to 180℃~280℃, reacted for 2h~12h to obtain hydrothermal reaction slurry, filtered and separated to obtain chromium hydroxide solid; calcined chromium hydroxide solid to obtain chromium oxide green.

The invention relates to a method for preparing iron oxide red by using ferrochromium, wherein the method comprises the following steps: a first step, providing a preparation device including an electrolytic tank, a double-anode device, a double-cathode device, an insulating partition plate, a plurality of settling tanks and an electrode; a second step, carrying out an electrolytic reaction by a self circulating mode, automatically controlling the temperature at 20 DEG C-60 DEG C, and controlling the electrolyte solution circulating reaction time according to the formula 1 described in the specification, to obtain a high-concentration chromate solution and a solid slag material; a third step, carrying out conventional gravity magnetic sorting of the solid slag material obtained in the second step, and removing inclusion small-particle ferrochromium to obtain iron hydroxide with the particle size of 30 [mu]m-74 [mu]m; and a fourth step, calcining the iron hydroxide with the particle size of 30 [mu]m-74 [mu]m at the temperature of 500 DEG C-800 DEG C for about 1 h-4 h to obtain iron oxide red.