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

Flotation process for efficiently recovering lead, zinc and sulfur in multi-metal sulfide ore

A polymetallic and sulfide ore technology, applied in flotation, solid separation, etc., can solve the problems of high cost of ore dressing, and achieve the effects of reducing hidden dangers in production safety, saving costs, and reducing the number of reagents

Inactive Publication Date: 2020-08-07
SHENYANG RES INST OF NONFERROUS METALS
View PDF7 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The natural floatability sequence of the main metal minerals pyrite, galena and sphalerite in lead-zinc-sulfur ore is: galena > sphalerite > pyrite, so most of the mine production adopts the priority flotation process - That is to first float lead, then zinc, and finally sulfur; this process has the advantages of simple process and easy operation, but the cost of mineral processing is relatively high. The current sampling survey data of small mines in my country shows that the weighted average mineral processing cost of the mineral processing plant is 95.98 yuan / Ton

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
  • Flotation process for efficiently recovering lead, zinc and sulfur in multi-metal sulfide ore
  • Flotation process for efficiently recovering lead, zinc and sulfur in multi-metal sulfide ore

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A lead-zinc mine in Liaoning, the test sample contains 2.22% lead, 1.63% zinc, 7.89% sulfur, and 53.50g / t silver. The mixed flotation of lead, zinc, and sulfur is used. The technological process of zinc produces lead concentrate, zinc concentrate, sulfur concentrate, and comprehensively recovers silver minerals. On-site production process flow and process conditions figure 1 As shown, the production process conditions are: under the condition of no regulator, use a single butyl xanthate to collect lead, zinc, and sulfur, and after the mixed concentrate is regrinded, use activated carbon to remove the drug, zinc sulfate + lime + sodium thioglycolate Inhibit sphalerite and pyrite, ethionite to capture lead minerals, lead tail with copper sulfate to activate zinc minerals, lime + sodium sulfite to inhibit pyrite, butyl xanthate to capture zinc minerals, zinc tail is sulfur concentrate . The small-scale closed-circuit test has obtained relatively ideal beneficiation indic...

Embodiment 2

[0037]In a lead-zinc-silver mine in Inner Mongolia, the test sample contained 1.39% lead, 2.12% zinc, 3.47% sulfur, and 19.65g / t silver. The mixed flotation of lead, zinc, and sulfur was used to float in order, followed by refining and regrinding. Process flow of lead and zinc. The mixed flotation of lead, zinc and sulfur adopts a process of one roughing, three refining and three sweeping; after the lead-zinc-sulfur mixed concentrate is regrinded, the process of floating lead first adopts one roughing, three refining and two sweeping; Three precision and two sweep process. Flotation produces lead concentrate, zinc concentrate, sulfur concentrate, and comprehensive recovery of silver minerals. The production process conditions are: under the conditions that the grinding fineness -0.074mm accounts for 60%, the dosage of butyl xanthate is 50g / t, and the dosage of terpineol oil is 30g / t, the mixed flotation of lead, zinc and sulfur is carried out. Obtain lead-zinc-sulfur mixed c...

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 beneficiation, and relates to a flotation process flow and a reagent system of nonferrou multi-metal sulfide ore, and in particular, relates to a flotation process and a reagent system for efficiently recovering lead, zinc and sulfur from lead-zinc-sulfur ore. In the preferential lead floating operation, zinc minerals are inhibited by adopting zinc sulfate and sodium thioglycolate, so that lead is efficiently separated from zinc and sulfur, zinc and pyrite; in the preferential zinc flotation operation, a lime and sodium sulfite sulfur-inhibitionprocess is adopted, so that zinc and pyrite are efficiently separated, and the quality and the recovery rate of lead concentrate and zinc concentrate are guaranteed. According to the lead-zinc-sulfurore flotation process and the reagent system provided by the invention, lead, zinc and sulfur are efficiently recycled, the ore dressing cost is greatly reduced, and social and economic benefits are achieved.

Description

technical field [0001] The invention belongs to the technical field of ore dressing, and relates to a flotation process and reagent system for non-ferrous polymetallic sulfide ores, in particular to a flotation process and reagent system for efficiently recovering lead, zinc and sulfur from lead-zinc-sulfur ores. Background technique [0002] my country is rich in lead and zinc resources, and its proven reserves rank among the top in the world. Most of the lead-zinc-sulfur ores in my country are polymetallic sulfide ores, which are characterized by complex mineral compositions and many types of minerals. The main metal minerals are pyrite, galena, sphalerite, and the intercalation between minerals in the ore The distribution relationship is more complicated. Galena, sphalerite, pyrite and other metal minerals are combined into dense massive aggregates, and a small amount is distributed in the gangue in granular, irregular, and vein shapes. The mineral processing method shoul...

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): B03D1/02B03D1/018B03D1/002B03D1/012B03D101/06B03D101/02B03D103/02
CPCB03D1/02B03D1/018B03D1/002B03D1/012B03D2201/06B03D2201/02B03D2203/02
Inventor 马忠臣王奇黎杨长颖
Owner SHENYANG RES INST OF NONFERROUS METALS
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