Battery-grade cobalt carbonate crystal form reaction process

Abstract

The invention relates to a battery-grade cobalt carbonate crystal form reaction process which comprises the following steps: introducing a cobalt chloride solution, an ammonium bicarbonate solution and an ammonia water solution into a micro-channel reactor, uniformly mixing and reacting, enabling the fully reacted mixed liquid to automatically flow into a parallel efficient pipeline mixer, and carrying out positive and negative stage full reaction to quickly and initially condense the materials into a crystal form; and gradually increasing the crystal form to a certain parameter through a magnetization reactor, entering a crystal form stirring kettle, increasing the crystal form to a product standard crystal form, pumping into a centrifugal machine for centrifugal treatment, and conveying the centrifuged dry material into a pyrogenic process workshop through a belt to prepare a finished product. The battery-grade cobalt carbonate crystal form reaction process provided by the invention can ensure that the material mixing proportion is uniform, and has the advantages of high crystal form initial setting speed, high continuous feeding efficiency, no material loss and the like.

Description

technical field [0001] The invention belongs to the technical field of cobalt carbonate preparation, and in particular relates to a battery-grade cobalt carbonate crystal form reaction process. Background technique [0002] Cobalt carbonate 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, which 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 mining industry. Used by the organic industry to make catalysts, camouflage paints, and chemical temperature indicators. Agriculturally used as trace element fertilizer. It is used as analytical reagent in analytical chemistry. [0...

AI Technical Summary

Problems solved by technology

[0003] The existing traditional cobalt carbonate preparation process often has the problems of uneven material mixing, long entire reaction cycle, and serious material loss

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