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New method used for extracting metal nickel from laterite-nickel ore leach liquor

A technology for laterite nickel ore and metal extraction, which is applied in the direction of improving process efficiency, can solve problems such as inoperability and production practice, and achieve the effects of reducing production costs, improving production reliability, and reducing waste water discharge

Active Publication Date: 2020-06-12
SUNRESIN NEW METERIALS CO LTD XIAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is mainly to propose a device structure and fluid distribution method, which does not involve a specific production process and method, and is not operable and practical for production.

Method used

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  • New method used for extracting metal nickel from laterite-nickel ore leach liquor
  • New method used for extracting metal nickel from laterite-nickel ore leach liquor
  • New method used for extracting metal nickel from laterite-nickel ore leach liquor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046]Laterite nickel ore leaching solution, eluent-pure water, desorption solution-15% (W / W) sulfuric acid aqueous solution, and desorption qualified solution respectively pass through the rotary switching valve system 1 located in the channel (the diameter of the valve port is 1.5 inches, and the rotation switching time 1h) Feed pipe 3 for laterite nickel ore leaching liquid, feed pipe 4 for eluent, feed pipe 5 for desorption liquid, feed pipe 7 for desorption liquid on the top and bottom of the turntable, through the channel to rotate and switch the inner channel of the valve system After entering the corresponding resin column 6 with the channel respectively (filling Lanxiao Technology to extract nickel chelating resin LSC-930, produced by Xi'an Lanxiao Technology New Materials Co., Ltd.), from the laterite nickel ore leaching solution discharge pipe 8, The eluent discharge pipe 9, the qualified liquid discharge pipe 10, and the adsorption tail liquid top desorption liquid ...

Embodiment 2

[0054] Laterite nickel ore leaching solution, eluent-pure water, desorption solution-10% (W / W) sulfuric acid aqueous solution, and desorption qualified solution pass through the rotary switching valve system 1 located in the channel (the diameter of the valve port is 1.5 inches, and the rotation switching time 3h) Feed pipe 3 for laterite nickel ore leaching liquid, feed pipe 4 for eluent, feed pipe 5 for desorption liquid, feed pipe 7 for desorption liquid on the top and bottom of the turntable, through the channel to rotate and switch the inner channel of the valve system After entering the corresponding resin column 6 with the channel respectively (filling Lanxiao Technology to extract nickel chelating resin LSC-930, produced by Xi'an Lanxiao Technology New Materials Co., Ltd.), from the laterite nickel ore leaching solution discharge pipe 8, The eluent discharge pipe 9, the qualified liquid discharge pipe 10, and the adsorption tail liquid top desorption liquid discharge pi...

Embodiment 3

[0062] Laterite nickel ore leaching solution, eluent-pure water, desorption solution-18% (w / w) sulfuric acid aqueous solution, and desorption qualified solution respectively pass through the rotary switching valve system 1 located in the channel (the diameter of the valve port is 1.5 inches, and the rotation switching time 2h) Feed pipe 3 for laterite nickel ore leaching liquid, feed pipe 4 for eluent, feed pipe 5 for desorption liquid, feed pipe 7 for desorption liquid on the top and bottom of the turntable, through the channel to rotate and switch the inner channel of the valve system After entering the corresponding resin column 6 with the channel respectively (filling Lanxiao Technology to extract nickel chelating resin LSC-930, produced by Xi'an Lanxiao Technology New Materials Co., Ltd.), from the laterite nickel ore leaching solution discharge pipe 8, The eluent discharge pipe 9, the qualified liquid discharge pipe 10, and the adsorption tail liquid top desorption liquid...

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Abstract

The invention provides a new method used for extracting metal nickel from laterite-nickel ore leach liquor. The whole technological process of the method comprises the following steps that laterite-nickel ore leach liquor enters a resin tower through a feeding pipe, and nickel ions in the laterite-nickel ore leach liquor are adsorbed and enriched by resin; and after the resin is saturated throughadsorption, leacheate enters the resin tower through a leacheate feeding pipe, and the laterite-nickel ore leach liquor with nickel not being adsorbed is washed back into a raw material tank to wait for adsorption of the next time. Compared with a conventional fixed bed system, by means of the method, the resin utilization rate can be improved by 20% or above, the resin utilization efficiency is increased by 40% or above, and the production cost can be reduced by 30%-50%. Due to the fact that full sealing is adopted by a channel rotating switching valve system and interval running of extracting solution adsorption and material backwater is achieved, water consumption and wastewater drainage of the whole running process are reduced, production reliability is improved, and full-year unintermittent running can be achieved.

Description

technical field [0001] The invention relates to a continuous ion exchange method for recovering metallic nickel from laterite nickel ore leach solution by using an advanced continuous ion exchange device, belonging to the field of hydrometallurgy. Background technique [0002] In the process of wet mining laterite nickel ore and purifying and recovering nickel in the laterite nickel ore leach solution, the current production methods mainly include reduction roasting-ammonia leaching process and atmospheric pressure acid leaching process. The reduction roasting-ammonia leaching process is to reduce and roast laterite at 700°C into nickel and cobalt alloys, and then undergo multi-stage countercurrent ammonia leaching, cobalt, nickel, etc. enter the leaching solution, and the leaching solution undergoes sulfidation and precipitation, and then the mother liquor is precipitated to remove iron and ammonia, and the output Basic sulfate, after calcination, it can produce nickel oxid...

Claims

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Application Information

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IPC IPC(8): C22B23/00C22B3/24
CPCC22B23/0453Y02P10/20
Inventor 余佳郭福民李岁党刘琼寇晓康
Owner SUNRESIN NEW METERIALS CO LTD XIAN
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