A method and system for recovering main and associated elements from copper-nickel sulfide ore

A technology of associated elements and sulfide ore, applied in the field of non-ferrous metal metallurgy, can solve problems such as ineffective realization, and achieve the effects of facilitating transportation and storage, improving recovery rate and effective recovery

Active Publication Date: 2018-09-28
CENT SOUTH UNIV
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The technical problem to be solved by the present invention is that the recovery of various elements cannot be effectively realized in the existing copper-nickel sulfide ore smelting process, especially the recovery rate of the element cobalt and precious metals is too 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 method and system for recovering main and associated elements from copper-nickel sulfide ore

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] like figure 1 As shown, in this example, the copper-nickel sulfide ore is smelted by matte making to obtain low nickel matte, the main element content: Ni20.21%, Cu 10.52%, Fe37.44%, Co 0.78%, precious metal about 10g / t, At the same time, sulfur dioxide is generated.

[0070] A solution with a mass fraction of sulfuric acid of 30% was prepared as the reaction bottom solution; at the same time, a solution with a mass fraction of sulfuric acid of 90% was prepared as a leaching reaction solution. Fill the reaction bottom liquid of total kettle volume 40% in reactor; Add low matte and reaction leaching liquid in reactor simultaneously and react, and keep the consumption of sulfuric acid in the reactor consistent with the addition; Continuous feed reacts, until Stop feeding when the slurry in the reaction kettle reaches 80% of the total kettle volume, continue the reaction for 1 hour, and collect the hydrogen sulfide gas generated during the reaction.

[0071] After the re...

Embodiment 2

[0074] Copper-nickel sulfide ore is smelted with matte to obtain low-matte nickel. The main element content is: Ni 13.25%, Cu 8.32%, Fe38.44%, Co 0.64%, precious metal about 8g / t, and sulfur dioxide is generated at the same time.

[0075] A solution with a mass fraction of sulfuric acid of 40% was prepared as the reaction bottom solution; at the same time, a solution with a mass fraction of sulfuric acid of 85% was prepared as a leaching reaction solution. Fill the reaction bottom liquid of 45% of total kettle volume in reactor; Add low matte nickel and reaction leaching solution in reactor simultaneously and react, and maintain the consumption of sulfuric acid in the reactor consistent with the addition; Continuous feed reacts, until Stop feeding when the slurry in the reaction kettle reaches 80% of the total kettle volume, continue the reaction for 1.5h, and collect the hydrogen sulfide gas generated during the reaction.

[0076] After the reaction is completed, the slurry i...

Embodiment 3

[0079] Copper-nickel sulfide ore is smelted with matte to obtain low nickel matte. The main element content is: Ni 16.55%, Cu 10.32%, Fe 33.44%, Co 0.34%, precious metal about 11g / t, and sulfur dioxide is formed at the same time.

[0080] A solution with a mass fraction of sulfuric acid of 20% was prepared as the reaction bottom solution; at the same time, a solution with a mass fraction of sulfuric acid of 60% was prepared as a leaching reaction solution. Fill the reaction bottom liquid of total still volume 30% in reactor; Add low matte nickel and reaction leaching liquid in reactor simultaneously and react, and keep the consumption of sulfuric acid in the reactor consistent with the addition; Continuous feed reacts, until Stop feeding when the slurry in the reaction kettle reaches 80% of the total kettle volume, continue the reaction for 0.5h, and collect the hydrogen sulfide gas generated during the reaction.

[0081] After the reaction is completed, the slurry is cooled t...

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

PropertyMeasurementUnit
quality scoreaaaaaaaaaa
Login to view more

Abstract

The invention provides a method and system for recovering main and associated elements from copper-nickel sulfide ore, the method comprising: 1) continuously adding low-matte and leaching reaction solution into the reaction bottom liquid, selectively leaching, and collecting hydrogen sulfide Gas, the first leaching solution and the first leaching slag, wherein the leaching reaction solution is sulfuric acid with a mass fraction of 60%-95%; 2) adding water to the first leaching slag for dissolution, and collecting the second leaching solution and the second leaching slag; 3) removing iron from the second leaching solution, collecting the iron-removing solution and iron-removing slag, the iron-removing solution is used for the extraction of nickel and cobalt, and the iron-removing slag is used for ironmaking; and / or, sending the second leaching slag to copper The smelting device smelts to obtain copper and precious metals respectively. The method proposed by the invention can realize the deep separation of nickel and copper, and effectively realize the recovery of nickel, copper, cobalt, precious metals and sulfur. The invention has simple process, short process and high efficiency, is a clean and efficient element recovery process, and is easy for large-scale industrial production.

Description

technical field [0001] The invention relates to the technical field of nonferrous metal metallurgy, and more specifically, to a method and system for recovering main and associated elements from copper-nickel sulfide ore. Background technique [0002] Nickel is an important strategic metal widely used in national defense, aerospace, transportation, petrochemical, energy and other fields. A considerable number of nickel ores are sulfide ores, associated with copper, cobalt and precious metals (gold, silver and platinum group metals), such as the Jinchuan copper-nickel mine in Gansu and the Kalatongke copper-nickel mine in Xinjiang. Therefore, it is necessary to consider the recovery of cobalt and precious metals while extracting nickel and copper. [0003] The traditional smelting process of copper-nickel sulfide ore is first to make matte smelting to enrich iron, nickel, cobalt and copper in the form of sulfide to form low nickel matte, and the associated precious metals ar...

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): C22B3/08C22B3/44C22B3/38C22B15/00C22B11/00C22B23/00
CPCC22B3/08C22B3/44C22B11/00C22B15/0028C22B23/043C22B23/0461C25C1/12C22B3/3844Y02P10/20
Inventor 赵中伟李永立
Owner CENT SOUTH UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap