A kind of buffer system for preparing cobalt carbonate

Abstract

The invention provides a buffer system for preparing cobalt carbonate. The system includes a buffer tank, a precision filter and a reaction kettle; an inlet of the bottom of the buffer tank is connected to an opening of the top of the precision filter through a pipeline; an outlet of the buffer tank is connected to a first opening of the reaction kettle through a pipeline; and an inlet of the precision filter is connected to an overflow opening of the reaction kettle, and an outlet of the precision filter is connected to a second opening of the reaction kettle through a first circulation pump.According to the system provided by the invention, the buffer tank is arranged at the top of the precision filter, so that when the precision filter utilizes compressed air to perform back blowing, the problem of material running is avoided, and the material recovery amount of the entire system is greatly improved; and meanwhile, the buffer tank can alleviate the breath holding problem in the precision filter, thereby improving the liquid pumping speed of the precision filter.

Description

technical field The invention relates to the technical field of chemical industry, more specifically, to a buffer system for preparing cobalt carbonate. Background technique Cobalt carbonate is a red monoclinic crystal or powder. Toxic, irritating to eyes, respiratory system and skin. It is mainly used as mineral dressing agent, catalyst, pigment for camouflage paint, feed, micro-fertilizer, ceramics and raw material for the production of cobalt oxide. Among them, it is mainly used to make cobalt chloride, cobalt sulfate, cobalt oxide, metal cobalt and cobalt naphthenate. It is also used to make color-changing pigments, glass pigments, ceramics, feed trace element additives and trace element fertilizers. It is used to make cobalt oxide and is the raw material for making positive electrode materials of lithium batteries. The ceramic industry is used as a colorant for the manufacture of cobalt salts and the coloring of porcelain. It is used as beneficiation agent in minin...

AI Technical Summary

Problems solved by technology

However, in the process of blowing back the precision filter with compressed air, the pressure of the back blowing air is controlled at 0.4-0.6MPa, which makes it easy for the material to be discharged from the vent pipe set on the top of the precision filter, so that the inside of the precision filter The amount of material recycled is greatly reduced

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