Manganese dioxide electrolysis system and production method thereof

Abstract

The invention discloses an electrolysis system of manganese dioxide and a production method thereof, comprising the following steps: a) selecting a surfactant with a density lower than that of manganese sulfate electrolytic solution as a foaming agent for heat preservation and covering; b) mixing and adding the surfactant into the electrolytic cell Sulfuric acid, manganese sulfate solution and selected foaming agent, make foaming agent float on the surface of manganese sulfate electrolytic solution; c) control the electric current of positive and negative electrodes in the electrolyzer to carry out ionization reaction, and release gaseous hydrogen; d) The hydrogen gas released by the ionization reaction is used as the foaming gas source of the foaming agent to form a thermal insulation layer on the surface of the electrolytic cell. The present invention uses hydrogen as a foaming gas source to form bubble coverage of the entire tank, which increases the temperature in the reaction tank, dissolves the sediment at the bottom of the tank, reduces the pressure drop at the bottom of the tank, and at the same time reduces the corrosion of equipment caused by hydrogen escape; Compared with the heat preservation device, it greatly saves the space of the electrolytic cell and effectively avoids the short circuit of the electrodes, so that it is convenient to increase the number of cathode and anode plates and optimize the electrode spacing of the electrolytic cell.

Description

technical field [0001] The invention relates to an electrolysis system and a production method thereof, in particular to an electrolysis system of manganese dioxide and a production method thereof. Background technique [0002] Electrolytic manganese dioxide is the main raw material for the production of primary batteries. Manganese dioxide is inseparable from the development of primary batteries. About 90% of the world's electrolytic manganese dioxide is used in the production of disposable batteries, and some are used in the production of power battery materials. my country is The battery production country is also a big consumer country. The rapid development of the primary battery industry has driven the rapid growth of the demand for manganese dioxide. With the development of electronic information science and technology, the demand for mobile phones, notebook computers, small cameras, etc. has soared; with the change of consumption concept, Walkmans, learning machines, ...

AI Technical Summary

Problems solved by technology

[0003] However, electrolytic manganese dioxide is a high-energy-consuming product. The production of one ton of electrolytic manganese dioxide requires not only electricity, but also a large amount of steam for heating the electrolyte.

Images