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System and production process for producing cobaltosic oxide through spray roasting method

A technology of cobalt tetroxide and spray roasting method, applied in cobalt oxide/cobalt hydroxide, chemical industry, preparation with chloride, etc., can solve problems such as environmental pollution, and achieve the effect of environmental protection, low temperature and good preparation effect

Pending Publication Date: 2019-12-03
CHENGDU YIZHI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] During the preparation process of cobalt tetroxide, a large amount of waste gas, dust and waste water will be produced. If these waste gas, dust and waste water are not treated, it will bring great pollution to the environment.

Method used

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  • System and production process for producing cobaltosic oxide through spray roasting method
  • System and production process for producing cobaltosic oxide through spray roasting method
  • System and production process for producing cobaltosic oxide through spray roasting method

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Effect test

Embodiment 1

[0037] Such as figure 1 , 2 As shown, a system for producing cobalt tetroxide by spray roasting method disclosed in the present invention includes a raw material tank 1 for storing cobalt chloride solution, and also includes a pre-concentrator 2 communicating with raw material tank 1 for concentrating the cobalt chloride solution , communicate with the pre-concentrator 2 and be used to add the acid storage tank 3 of acidic solution to the pre-concentrator 2, be communicated with the pre-concentrator 2 and be used for the roasting furnace 4 that the concentrated cobalt chloride solution is carried out spray roasting, one end is connected with roasting Furnace 4 communicates and the other end communicates with pre-concentrator 2 and is used for the cyclone dust collector 5 that the dust in the roasting furnace gas is removed, and the collection device 6 that is used for tricobalt tetroxide powder collection that communicates with roasting furnace 4, and with pre-concentrator 2 ...

Embodiment 2

[0045] Such as image 3 As shown, a kind of production technology that adopts spray roasting method to produce tricobalt tetroxide disclosed by the present invention comprises the system that adopts spray roasting method to produce tricobalt tetroxide as mentioned above, and carries out according to the following steps:

[0046] (S1) Input the cobalt chloride solution in the raw material tank to the pre-concentrator after filtering out impurities therein through a filter, concentrate the cobalt chloride solution by 20-35%, and pass the filtered gas into the roasting furnace Roaster gas heating with combustion air.

[0047] (S2) The cobalt chloride solution concentrated by the pre-concentrator is pressurized and sprayed into the roaster by the feed pump of the roaster for spray roasting, and the cobalt chloride is decomposed into tricobalt tetroxide and HCl gas and water vapor, wherein the spray High pressure and filtered compressed air are used for atomization, and the reacti...

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Abstract

The invention discloses a system and production process for producing cobaltosic oxide through a spray roasting method. The problems that the cobaltosic oxide production and preparation efficiency islow, and waste gas, dust and waste liquid generated during preparation cannot be effective treated are mainly solved. The system comprises a raw material tank for storing a cobalt chloride solution and further comprises a preconcentrator communicating with the raw material tank, an acid storing tank communicating with the preconcentrator, a roasting furnace communicating with the preconcentrator,a cyclone dust collector, a collecting device communicating with the roasting furnace, and a waste gas recovery treatment device communicating with the preconcentrator, wherein one end of the cyclonedust collector communicates with the roasting furnace, and the other end of the cyclone dust collector communicates with the preconcentrator. The production system is suitable for preparing the cobaltosic oxide through the spray roasting method, the product degree and the production efficiency are high, in the production technological process, the temperature is low, energy consumption is less, energy is saved, meanwhile, the waste gas and the dust in the production process are recovered though a waste gas recovery treatment device, thus polluted gas in the preparation process reaches the emission standard, and the energy is saved.

Description

technical field [0001] The present invention relates to the production and preparation technical field of tricobalt tetroxide, specifically, relate to a kind of system that adopts spray roasting method to produce tricobalt tetroxide and its production technology. Background technique [0002] Cobalt tetroxide (Co 3 o 4 ) is an important functional material, which is the main raw material for the preparation of lithium cobalt oxide, the positive electrode material of lithium-ion batteries, and is also widely used in supercapacitors, ceramics, catalysts and other fields. Tricobalt tetroxide is mainly prepared by spray roasting method by using its metal oxide. [0003] The spray roasting method is a promising material preparation method. Compared with the traditional preparation technology, it has many advantages: such as the controllable particle size of the product, high product purity, good particle dispersion, and high production efficiency. , and the process temperature...

Claims

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Application Information

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IPC IPC(8): C01G51/04C01B7/03C01B7/07B01D50/00B01D53/18
CPCC01G51/04C01B7/035C01B7/0706B01D53/18B01D53/1418B01D53/1456B01D50/40Y02P20/10
Inventor 苏宗华宋兵王红梅张博远黄燕张运宽吴志平龚跃万文龙力华田晓颖
Owner CHENGDU YIZHI TECH CO LTD
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