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

Method for separating lead from carbon and copper in copper-lead-zinc mixed sulfide ore

A separation method and multi-metal technology, applied in solid separation, flotation and other directions, can solve the problems of complex process, poor indicators and high production cost, and achieve the effect of simple process, remarkable separation effect and easy realization.

Active Publication Date: 2012-07-18
西安西北有色地质研究院有限公司
View PDF5 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The former is likely to cause excessive loss of sulfide minerals in the process of carbonaceous removal, and the latter will also suppress lead in the process of carbon suppression; in addition, the difference in floatability between copper sulfide and lead sulfide minerals is relatively small, and the separation of copper and lead is important in production. It is difficult to practice, and the indicators are not good, especially when the copper content in the ore is low, the process is more complicated to obtain qualified products, and the production cost is high, but if it is not selected, the copper content in the lead and zinc concentrates will exceed the standard , is a difficult problem to deal with

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

[0025] Copper 0.16% (wt), lead 1.50% (wt), zinc 1.99% (wt), full carbon 2.88% (wt), graphite carbonaceous 1.11% (wt), pyrrhotite mineral 20% (wt) ) Separation of lead and carbon copper in floatable processes such as polymetallic sulfide ores:

[0026] Step 1, adding sulfur and nitrogen collector SN-9 (ethylsulfide nitrogen) and foaming agent No. 2 oil (pine alcohol oil) to the copper-lead-zinc polymetallic sulfide ore after ore grinding for rough separation to obtain rough refined ore; the consumption of the sulfur and nitrogen collector SN-9 is the copper-lead-zinc polymetallic sulfide ore after 50g / t grinding, and the consumption of No. 2 oil of the foaming agent is the copper after grinding of 11g / t Lead-zinc polymetallic sulfide ores;

[0027] Step 2, add lime and sulfur and nitrogen collector SN-9 to the coarse concentrate described in step 1, and through regrinding, obtain ore pulp; the consumption of described lime is more than 2000g / t of copper, lead and zinc after gr...

Embodiment 2

[0034] Copper 0.21% (wt), lead 1.48% (wt), zinc 1.33% (wt), full carbon 4.13% (wt), graphite carbonaceous 1.65% (wt), pyrrhotite mineral 15% (wt) ) Separation of lead and carbon copper in floatable processes such as polymetallic sulfide ores:

[0035]Step 1, adding sulfur nitrogen collector SN-9 and foaming agent isooctyl alcohol to the copper-lead-zinc polymetallic sulfide ore after ore grinding for rough separation to obtain rough concentrate; the sulfur nitrogen collector The consumption of SN-9 is the copper-lead-zinc polymetallic sulfide ore after ore grinding of 45g / t, and the consumption of described foaming agent isooctyl alcohol is the copper-lead-zinc polymetallic sulfide ore after ore grinding of 10g / t;

[0036] Step 2. Add lime and sulfur nitrogen collector SN-9 to the coarse concentrate described in step 1, and then grind to obtain ore pulp; the amount of lime is 3000g / t of copper-lead-zinc polymetallic sulfide after grinding ore, the consumption of described sul...

Embodiment 3

[0043] Copper 0.136% (wt), lead 1.48% (wt), zinc 1.93% (wt), total carbon 3.52% (wt), graphite carbonaceous 1.35% (wt), pyrrhotite mineral 24% (wt) ) Separation of lead and carbon copper in floatable processes such as polymetallic sulfide ores:

[0044] Step 1, adding sulfur nitrogen collector SN-9 and foaming agent isooctyl alcohol to the copper-lead-zinc polymetallic sulfide ore after ore grinding for rough separation to obtain rough concentrate; the sulfur nitrogen collector The consumption of SN-9 is the copper-lead-zinc polymetallic sulfide ore after ore grinding of 30g / t, and the consumption of described foaming agent isooctyl alcohol is the copper-lead-zinc polymetallic sulfide ore after ore grinding of 12g / t;

[0045] Step 2. Add lime and sulfur nitrogen collector SN-9 to the coarse concentrate described in step 1, and then grind to obtain ore pulp; the amount of lime is 3500g / t of copper-lead-zinc polymetallic sulfide after grinding ore, the consumption of described ...

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 discloses a method for separating lead from carbon and copper in copper-lead-zinc mixed sulfide ore. The method comprises the steps of (1) carrying out rough concentration and grinding on the copper-lead-zinc mixed sulfide ore to obtain rough concentrate; (2) regrinding the rough concentrate to obtain ore pulp; (3) sequentially adding modified calcium lignosulphonate, water glass, zinc sulfate, sodium sulfite and sodium cyanide to ore pulp to separate lead from carbon-copper-zinc sulfide; (4) carrying out concentration on the floating product after separation in a concentration tank to obtain lead concentrate; (5) adding a foaming agent to the product in a tank after separation to float the floating product; and (6) adding copper sulfate to the product in the tank for activating, then adding a collector for floating the copper mineral, and carrying out concentration to obtain the copper concentrate. As the method is adopted, the lead grade of the obtained lead concentrate reaches more than 59%, the lead recovery rate reaches about 71-73%, the copper grade of the obtained copper concentrate reaches about 15%, the copper recovery rate reaches about 48-53%, the lead loss rate in carbon impurity is reduced to 1-2% from about 5-8%, and the separating effect is remarkable.

Description

technical field [0001] The invention belongs to the technical field of nonferrous metal beneficiation, and in particular relates to a method for separating lead and carbon copper in copper-lead-zinc polymetallic sulfide ore. Background technique [0002] Copper-lead-zinc polymetallic sulfide ore is a complex ore in the field of beneficiation. When it contains fine-grained graphite carbon and a large amount of pyrrhotite with good floatability, separation is more difficult. The conventional treatment process is to remove carbon before sorting sulfide minerals or to add cellulose and starch agents to suppress carbon during the sorting process. The former is likely to cause excessive loss of sulfide minerals in the process of carbonaceous removal, and the latter will also inhibit lead in the process of carbon suppression; in addition, the difference in floatability between copper sulfide and lead sulfide minerals is relatively small, and the separation of copper and lead is imp...

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
IPC IPC(8): B03D1/00
Inventor 李洁马晶郭月琴孙志勇
Owner 西安西北有色地质研究院有限公司
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