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How to Prepare Ultrafine Spherical Cobalt Powder

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Update time : 2020-08-11 09:30:16

High pressure water mist

Due to its excellent physical, chemical and mechanical properties, Cobalt Powder is widely used in cemented carbide, petrochemical catalyst, hydrogen storage alloy electrode and so on. Spray method which has been widely applied, its technological process: activates the induction furnace and high pressure water atomized powder and cobalt will weigh a good piece of melting into it, will get the molten metal liquid leaking into the package sold out through the bottom and furnace into the atomization device, the annular nozzle fluid of high pressure water will break into thousands of tiny beads, small droplet through condensation, formation water, powder mixtures and the atomizing cylinder at the bottom of the current stabilizer, wet powder, was finally get nanometer Cobalt Powder after dehydration, drying process.

Electrolytic process

The principle of preparing cobalt metal powder by electrolysis is to use cobalt plate as anode and highly polished stainless steel water jacket as cathode. The electrolyte is generally cobalt chloride or cobalt sulfate aqueous solution. Direct current is passed into the electrolytic cell, and the electrolyte is ionized. At this time, cobalt ions gather at the cathode and discharge deposition to form Cobalt Powder. In order to prevent the agglomeration of Cobalt Powder, an appropriate amount of surface active agent is usually added to the electrolyte.


Cobalt hydrogen oxide reduction

Cobalt hydrogen oxide reduction is also widely used in the preparation of Cobalt Powder for cemented carbide. This method is mainly based on cobalt oxide (Co2O3, Co2O3 and CoO) as raw materials, and the Cobalt Powder is directly reduced by hydrogen at 400~600 C. The reduction temperature is one of the key factors for the preparation of high-performance Cobalt Powder in the cobalt hydrogen oxide reduction method.


TRUNNANO (aka. Luoyang Tongrun Nano Technology Co. Ltd.) is a trusted global chemical material supplier & manufacturer with over 12 years experience in providing super high quality chemicals and Nano materials. The Cobalt Powder produced by our company has high quality. Lower, please contact us if necessary.

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