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

A kind of method for recovering scandium from scandium-containing nickel-cobalt hydroxide

A technology of nickel-cobalt hydroxide and zirconium hydroxide, which is applied in the field of scandium recovery, can solve the problems of resin adsorption, desorption, long regeneration cycle, and low processing efficiency, and achieve the effects of short cycle, high economic value, and simple operation

Active Publication Date: 2022-07-05
广西银亿新材料有限公司
View PDF17 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The extraction condition of the former is to extract and separate scandium under high acidity conditions, and other impurities cannot be separated. In order to produce nickel-cobalt series products, further impurity removal is still required, while the latter is only for the case of low scandium concentration, and the adsorption and desorption of the resin , The regeneration cycle is generally very long, and the treatment efficiency is low

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of method for recovering scandium from scandium-containing nickel-cobalt hydroxide
  • A kind of method for recovering scandium from scandium-containing nickel-cobalt hydroxide
  • A kind of method for recovering scandium from scandium-containing nickel-cobalt hydroxide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] (1) Acid leaching

[0034] Take 1# nickel cobalt hydroxide (main components shown in Table 1) wet base 10kg, add water to make slurry according to the liquid-solid mass ratio of 0.5:1, heat the slurry in a water bath to 60 ° C, and add a mass fraction of 98% Sulfuric acid was acid-dissolved, and the pH of the acid-dissolving endpoint was controlled to be 1.5. After the constant temperature reaction for 0.5h, the nickel-cobalt hydroxide slurry with a liquid-solid mass ratio of 0.5:1 was added, the pH was adjusted back to 2.5, and the reaction was continued for 0.5h and then filtered to obtain 1 #acid-soluble residue and 1# acid solution, the leaching rate of scandium in liquid meter reaches 93.64%, and the main components of 1# acid solution are shown in Table 2.

[0035] (2) One enrichment of scandium

[0036] Take 5L of 1# acid solution, slowly add 150g of wet base zirconium hydroxide (water content 40%) used for the first time to it at 20°C, the end point pH is const...

Embodiment 2

[0046] (1) Acid leaching

[0047] Take 2# nickel cobalt hydroxide (the main components are shown in Table 1) wet base 100kg, add water to make slurry according to the liquid-solid mass ratio of 1:1, heat the slurry to 75 ° C, add 98% sulfuric acid for acid dissolution , control the pH of the acid dissolution endpoint to be 1.0, continue to add nickel-cobalt hydroxide slurry with a liquid-solid mass ratio of 1:1 after constant temperature reaction for 0.5h, adjust the pH to 3.0, continue to react for 1.5h and then solid-liquid separation to obtain 2# acid Dissolved slag and 2# acid solution, in which the liquid meter leaching rate of scandium reaches 92.5%, and the main components of 2# acid solution are shown in Table 2.

[0048] (2) One enrichment of scandium

[0049] Take 30L of the 2# acid solution, slowly add 600g of dry base zirconium hydroxide used for the first time to it at 65°C, the end point pH is constant at 5.0 after the reaction for 1h, and the solid-liquid separ...

Embodiment 3

[0060] (1) Acid leaching

[0061] Take 3# nickel cobalt hydroxide (main components are shown in Table 1) wet base 1000kg, add water to make slurry according to the liquid-solid mass ratio of 1.5:1, heat the slurry to 90 ° C, add 98% sulfuric acid for acid dissolution , control the pH of the acid solution endpoint to be 1.3, continue to add nickel-cobalt hydroxide slurry with a liquid-solid ratio of 1.5:1 after the constant temperature reaction for 0.5h, adjust the pH to 3.5, continue to react for 3.5h and then solid-liquid separation to obtain 3# acid solution Slag and 3# acid solution, in which the liquid meter leaching rate of scandium reaches 92.18%, and the main components of 3# acid solution are shown in Table 2.

[0062] (2) One enrichment of scandium

[0063] Take 500L of 3# acid solution, slowly add 80kg of wet-base zirconium hydroxide (moisture 60%) used for the first time to it at 90°C, the end point pH is constant at 4.5 after the reaction for 2h, and the solid-liq...

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 scandium resource recovery, in particular to a method for recovering scandium from scandium-containing nickel-cobalt hydroxide, the method comprising the following steps: S1. acid leaching; S2. primary enrichment of scandium; S3. desorption ; S4. Secondary enrichment of scandium; S5. Drying. In the invention, zirconium hydroxide is used to enrich the scandium-containing nickel-cobalt solution once, and then the zirconium hydroxide is desorbed, and the scandium-containing desorption solution is enriched twice with alkali, so as to achieve recovery from the nickel-cobalt hydroxide intermediate product The purpose of scandium is that the zirconium hydroxide used can be used repeatedly and can be regenerated. The recovery rate of scandium is high, the treatment efficiency is high, the operation is simple, and impurity ions are not introduced into the system.

Description

technical field [0001] The invention belongs to the technical field of scandium resource recovery, in particular to a method for recovering scandium from scandium-containing nickel-cobalt hydroxide. Background technique [0002] Due to its special physical and chemical properties, scandium has been used to prepare aluminum-scandium alloys, fuel cells, scandium-sodium halide lamps, tracers, laser crystals and other products. application prospects. The industrial reserves of scandium resources in the world are about 2 million t (calculated in Sc). my country is a country rich in scandium resources, with industrial reserves of about 650,000 t, accounting for 33% of the world's total industrial reserves. There are more than 800 kinds of minerals containing scandium in nature, but Sc 2 O 3 More than 500g / t is rare, and the independent minerals of scandium are extremely rare. The grades of scandium-bearing ores discovered so far are mostly Sc 2 O 3 The content is 10-50g / t (e...

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 Patents(China)
IPC IPC(8): C22B59/00C22B3/08C22B3/44C22B3/22
CPCC22B59/00C22B3/08C22B3/44C22B3/22Y02P10/20
Inventor 陈卫东况鑫胡建芳陈吉仙朱静薰周彩凤
Owner 广西银亿新材料有限公司
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