Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Low-chloride-ion washing method for cobalt carbonate

A washing method and technology of cobalt carbonate, applied in the direction of cobalt carbonate, separation methods, chemical instruments and methods, etc., can solve the problems of high washing water consumption, achieve the effects of reducing residual moisture, increasing work efficiency, and low solid content

Pending Publication Date: 2021-12-17
JINGMEN GEM NEW MATERIAL
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of high washing water consumption in the current cobalt carbonate preparation process, the invention provides a low chloride ion washing method for cobalt carbonate

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The application provides a low-cobalt ion washing method of cobalt carbonate, the method comprising the steps of:

[0031] S1, prepare cobalt carbonate slurry;

[0032] S11, preparation contains the cobalt solution that cobalt ion concentration is 100g / L, and preparation concentration is the ammonium bicarbonate solution of 200g / L, stand-by;

[0033] S12, choose 16m 3 A reaction kettle was used as a reaction vessel, and 3000L of water at 50°C was added to the reaction kettle, and 20L of ammonium bicarbonate solution was added to the water to obtain the bottom liquid;

[0034] Add cobalt solution and ammonium bicarbonate solution to the reaction kettle containing bottom liquid at the same time, carry out precipitation reaction, stir at 1200rpm, wherein, keep the flow rate of cobalt solution at 400L / h, adjust the flow rate of ammonium bicarbonate solution at the same time, control the reaction pH 7.0-7.3, the flow rate of the ammonium bicarbonate solution is 800-1200L / h...

Embodiment 2

[0040] The application provides a low-cobalt ion washing method of cobalt carbonate, the method comprising the steps of:

[0041] S1, prepare cobalt carbonate slurry;

[0042] S11, preparation contains the cobalt solution that cobalt ion concentration is 125g / L, and preparation concentration is the ammonium bicarbonate solution of 225g / L, stand-by;

[0043] S12, choose 16m 3 A reaction kettle was used as a reaction vessel, and 3500L of water at 55°C was added to the reaction kettle, and then 35L of ammonium bicarbonate solution was added to the water to obtain the bottom liquid;

[0044] Add cobalt solution and ammonium bicarbonate solution to the reaction kettle containing bottom liquid at the same time, carry out precipitation reaction, stir at 1450rpm, wherein, keep the flow rate of cobalt solution at 600L / h, adjust the flow rate of ammonium bicarbonate solution at the same time, control the reaction pH 7.0-7.3, the flow rate of the ammonium bicarbonate solution is 800-12...

Embodiment 3

[0050] The application provides a low-cobalt ion washing method of cobalt carbonate, the method comprising the steps of:

[0051] S1, prepare cobalt carbonate slurry;

[0052] S11, preparation contains the cobalt solution that cobalt ion concentration is 150g / L, and preparation concentration is the ammonium bicarbonate solution of 250g / L, stand-by;

[0053] S12, choose 16m 3 A reaction kettle is used as a reaction vessel, and 4000L of water at 60°C is added to the reaction kettle, and then 50L of ammonium bicarbonate solution is added to the water to obtain the bottom liquid;

[0054] Add cobalt solution and ammonium bicarbonate solution to the reaction kettle containing bottom liquid at the same time, carry out precipitation reaction, stir at 1800rpm, wherein, keep the flow rate of cobalt solution at 800L / h, adjust the flow rate of ammonium bicarbonate solution at the same time, control the reaction pH 7.0-7.3, the flow rate of the ammonium bicarbonate solution is 800-1200L / h...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the technical field of cobalt powder preparation, and discloses a low-chloride-ion washing method for cobalt carbonate, which comprises the following steps of: S1, preparing cobalt carbonate slurry; S2, pumping the cobalt carbonate slurry into two-in-one washing equipment, carrying out air filter pressing, and removing mother liquor to obtain a cobalt carbonate filter material; S3, adding water into the cobalt carbonate filter material, stirring, and stirring and washing to obtain a cobalt carbonate wet material; and S4, centrifugally washing and dewatering the cobalt carbonate wet material, and then drying the cobalt carbonate wet material to obtain cobalt carbonate. Through detection, the chlorine content in the cobalt carbonate prepared by the method disclosed by the invention is less than 50ppm, and about 33m<3> of water is consumed for washing each ton of cobalt metal.

Description

technical field [0001] The invention belongs to the technical field of cobalt powder preparation, and in particular relates to a method for washing cobalt carbonate with low chloride ions. Background technique [0002] In recent years, with the rapid development of my country's economy, the performance and quality requirements of cemented carbide have become higher and higher, and the quality of cobalt powder has a great influence on the performance of the alloy, especially the product quality stability of the production line By the manufacturer's attention. [0003] Cobalt carbonate, the precursor of cobalt powder, will produce hydrogen chloride or chlorine gas that pollutes the environment during the thermal phase reduction process, and these gases are also highly corrosive to the reduction equipment, shortening the reduction equipment. Therefore, in the reduction production process, how to reduce the chlorine content in cobalt carbonate has become a research hotspot and d...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C01G51/06B01D36/04
CPCC01G51/06B01D36/045C01P2006/80
Inventor 许开华刘文泽易全瑞唐洲白亮张海勇
Owner JINGMEN GEM NEW MATERIAL
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com