Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for extracting valuable metals from acid leaching solution of nickel-molybdenum multi-metal metallurgical materials by separation

A multi-metal and acid leaching technology, applied in the direction of improving process efficiency, etc., can solve problems such as non-application, molybdenum loss, iron interference, etc., and achieve the effect of simple operation, low production cost and short process

Inactive Publication Date: 2014-04-23
CENT SOUTH UNIV
View PDF2 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the residual acid and Fe in the leaching solution 3+ The molybdenum content is relatively high, and molybdenum is recovered in the form of cations, and iron interference is serious; the molybdenum in it is recovered in the form of anions, and the pH value must be adjusted to above 2.0, and the loss of molybdenum is serious during the pH adjustment process. not applied

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
  • Method for extracting valuable metals from acid leaching solution of nickel-molybdenum multi-metal metallurgical materials by separation
  • Method for extracting valuable metals from acid leaching solution of nickel-molybdenum multi-metal metallurgical materials by separation
  • Method for extracting valuable metals from acid leaching solution of nickel-molybdenum multi-metal metallurgical materials by separation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Nickel molybdenum ore oxidation roasting acid leaching solution contains Mo 8.2g / L, Ni 2.6g / L, add Na first 2 CO 3 Adjust the pH value to 1.5, and then use weak base anion exchange resin D315 to adsorb the molybdenum in it. The adsorption contact time is 50 minutes. The negative molybdenum resin is desorbed with 4.5mol / L ammonia water, and the desorption contact time is 60 minutes. Magnesium chloride is used to purify and remove P, As and Si. After purification, the liquid is deeply removed by strong base anion resin D231. After vanadium removal, nitric acid is added to the liquid to adjust the pH value to 2.0 to crystallize high-quality ammonium molybdate. After the liquid is transferred, NaHCO is added to the liquid. 3 Adjust the pH of the solution to 3.5, stir at 50°C for 1 hour, filter, and use chelating resin D412 to absorb the nickel in the filtrate. The contact time is 70 minutes. The negative nickel resin is desorbed with 1mol / L sulfuric acid. The contact time i...

Embodiment 2

[0020] Nickel-molybdenum ore calcification and oxidation roasting, low-temperature sulfate roasting, calcination and water stirring and leaching to obtain a solution containing Mo 10.5g / L, Ni 4.1g / L, and a pH value of 0.8. The leaching solution uses weak base anion exchange resin D314 to absorb molybdenum. and vanadium, the adsorption contact time is 70min, the negative molybdenum vanadium resin is desorbed with 1.5mol / L sodium hydroxide solution, the desorption contact time is 45min, the molybdenum solution is purified by magnesium sulfate to remove impurities, evaporates and crystallizes to obtain sodium molybdate, and the crystallization mother liquor is added with chloride Ammonium metavanadate is obtained by crystallization of ammonium, and CaCO is added to the solution after molybdenum extraction 3 , stirred at 80°C for 1.5 hours, adjusted the pH of the solution to 4.5, precipitated iron, aluminum, etc., filtered, then added ammonia water to adjust the pH value to 6.0 and...

Embodiment 3

[0022] The acid leaching solution for oxidation and roasting of waste petroleum catalysts contains Mo 6.5g / L, Ni 1.8g / L, adding NaOH to adjust the pH value to 0.4, and using strong base anion exchange resin D231 to adsorb molybdenum, the adsorption contact time is 90min, and it is used for negative molybdenum resin 5.5mol / L ammonia water desorption, desorption contact time 50min, after the molybdenum solution is left to settle vanadium, purify it with magnesium chloride to remove P, As and Si, and the purified solution is deeply removed by strong base anion resin D231, and the solution after vanadium removal Add nitric acid to adjust the pH value to 2.2 to crystallize ammonium molybdate, add NaHCO to the solution after molybdenum extraction 3 Adjust the pH value to 4.0, extract the nickel with P507, back-extract the loaded organic phase with nitric acid, evaporate, concentrate and crystallize the back-extracted solution to obtain industrial nickel nitrate. The total recovery r...

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 provides a method for extracting valuable metals from acid leaching solution of nickel-molybdenum multi-metal metallurgical materials by separation, which is used for extracting nickel, molybdenum and vanadium from the acid leaching solution. The method is characterized by comprising the following steps of: pre-adjusting a pH value of the solution to 0.1 to 2.0; adsorbing the molybdenum and the vanadium in the solution by using anion exchange resin; desorbing the molybdenum-vanadium carried resin by using ammonia water or sodium hydroxide solution to obtain the mixed solution of molybdenum-vanadium acid salt; generating purified molybdate and vanadate from the mixed solution of molybdenum-vanadium acid salt by the combination of an ammonium salt precipitation method and a strong alkali anion-resin exchange method; and adding alkali into the mixed solution to adjust the pH value and remove impurities, filtering the mixed solution, and recovering nickel from the filtrate by a cation exchange resin adsorption method, a solvent extraction method or a precipitation method. The method has the advantages of short flow, easy and convenient operation, low production cost, high metal recovery rate and the like.

Description

technical field [0001] The invention relates to a method for separating and extracting valuable metals from acid leaching liquid of nickel-molybdenum polymetallurgical materials. Background technique [0002] Both nickel and molybdenum are important nonferrous metals, widely used in iron and steel, nonferrous metallurgy, chemical industry and other fields. The carbon-containing nickel-molybdenum ore found in Guizhou, Hunan and other provinces of my country is a typical molybdenum-nickel polymetallic metallurgical material. In addition, some spent petroleum catalysts also contain a variety of valuable metals such as nickel and molybdenum. At present, the commonly used process for processing such metallurgical materials is: nickel-molybdenum polymetallurgical materials are oxidized and roasted and then alkaline leached, molybdenum is extracted from the leaching solution, nickel is recovered from the leaching slag, or nickel-molybdenum polymetallic metallurgical materials are ...

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): C22B3/06C22B3/24C22B34/20C22B34/22C22B23/00
CPCY02P10/20
Inventor 王明玉王学文彭俊
Owner CENT SOUTH UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com