7 results about "Electrolytic cell" patented technology

The invention discloses a method for electrochemical pretreatment on methyl sulcotrione pesticide wastewater. The method comprises the following steps: preparing a titanium-based tin antimony ruthenium cerium oxide electrode by using a coating-thermolysis method, feeding high-concentration methyl sulcotrione wastewater through an electrolytic cell which takes the titanium-based tin antimony ruthenium cerium oxide electrode as an anode, and continuously treating the wastewater for a certain time under certain current density. The titanium-based tin antimony ruthenium cerium oxide electrode is very good in stability, high in oxygen evolution potential and high in catalysis and oxidation capabilities. According to the method, the titanium-based tin antimony ruthenium cerium oxide electrode is adopted to pretreat high-concentration, high-salt and hard-biochemical wastewater generated in the production process of methyl sulcotrione, and the result shows that under conditions of certain pH values, current density and treatment time, the COD removal rate of the methyl sulcotrione can be greater than 50%, the BOD/COD is increased to be greater than 0.3 from less than 0.1, and the biodegradability is greatly improved. The electrochemical oxidation of the titanium-based tin antimony ruthenium cerium oxide electrode is very applicable to pretreatment on biochemical degradation of the high-salt high-concentration wastewater generated in the production of methyl sulcotrione.

The invention discloses an ether oxygen bond-free type polymer anion-exchange membrane and a preparation method thereof and belongs to the technical field of alkaline anion-exchange membranes. The ether oxygen bond-free type polymer anion-exchange membrane is characterized in that firstly, an ether oxygen bond-free aryl polymer with good solubility and stability is synthesized, then with amino groups of the polymer serving as grafting sites, the polymer is subjected to functionalized grafting to obtain a membrane material, and the membrane material is made into the membrane. The prepared membrane has good alkaline stability and high ion conductivity and can be applied to alkaline polymer electrolytic cells.

The invention discloses a novel liquid level control device and method for a fluorine-making electrolytic cell. The device comprises the electrolytic cell, the electrolytic cell internally comprises an anode, a cathode and a partition plate, and the electrolytic cell is provided with a pressure sensor, a displayer, a strip-shaped cavity, an elastic mechanism, a resistance adjusting mechanism, a reciprocating mechanism and a cleaning mechanism. The invention further provides a liquid level control process for electrolytic fluorine making. The process comprises the following steps of adding electrolyte into an electrolytic cell, when electrolysis is started, introducing high-pressure gas, recording a gas pressure value in the gas inlet pipe, and converting the pressure value into the liquidlevel depth of the electrolyte. The liquid level is judged by utilizing the pressure value of the gas in the bubbling and stirring system of the electrolytic cell, so that the real-time monitoring ofthe recharging condition in the electrolytic cell is realized, and the technical problems that the liquid level of the fluorine-making electrolytic cell is difficult to monitor on line in real time and the recharging amount is difficult to control are solved.

The invention discloses a resource recycling method of a byproduct mirabilite. The invention belongs to the technical field of byproduct mirabilite treatment. The resource recycling method of a byproduct mirabilite comprises the following steps: S1, adding an alkaline substance into a sodium sulfate solution with the mass concentration of 150-350g/L to adjust the pH value, and adding sodium carbonate to primarily remove calcium and magnesium ions in the solution; S2, precisely filtering the solution and then carrying out cation exchange to deeply absorb calcium, magnesium and other metal ions;S3, precisely filtering the solution again, then feeding the solution into an electrolytic cell for electrolytic treatment, preparing alkali liquor from a cathode, recycling the alkali liquor to other working sections, and preparing acid liquor from an anode; and S4, carrying out acid-salt separation on the anode liquor, and recycling the separated acid to other working sections. According to theresource recycling method of the by-product mirabilite, acid and alkali are prepared through membrane electrolysis, the generated acid and alkali can be reused in other working sections on site, andresource recycling is achieved.

The invention discloses a purification method of oxaliplatin. The final silver removal operation of oxaliplatin purification is changed into an electrolytic tank method from an original chemical method, so other halogenating reagents can be avoided, and silver ion removal effect is superior compared with other chemical removal methods. The method is simple in reaction conditions, simple, convenient and efficient to operate, safe to implement, more friendly to environment and suitable for industrial production, and meets the requirements of green chemistry and atomic economy.