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

Antifreezing method of sulfide ore bioleaching ore heap

A technology for bioleaching and sulfide ore, applied in the direction of improving process efficiency, can solve problems such as low temperature of ore heap, and achieve the effects of reducing heat loss, improving biological heap leaching efficiency, and improving bacterial concentration

Inactive Publication Date: 2011-11-23
INST OF MULTIPURPOSE UTILIZATION OF MINERAL RESOURCES CHINESE ACAD OF GEOLOGICAL SCI
View PDF4 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention proposes an antifreeze method for sulfide ore bioleaching ore piles to solve the low temperature of ore piles and related problems caused by the temperature during the low temperature season, especially in the process of sulfide ore biological heap leaching in alpine regions, to ensure the bioleaching of ore piles continuation of the process

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
  • Antifreezing method of sulfide ore bioleaching ore heap
  • Antifreezing method of sulfide ore bioleaching ore heap
  • Antifreezing method of sulfide ore bioleaching ore heap

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] Such as figure 1 As shown, antifreeze methods for sulfide ore bioleaching piles:

[0033] Firstly, the ore 1 is mined according to a known method, and sent to the crushing operation process 2. In the crushing process, the ore is crushed to a predetermined particle size, usually within 0--50mm.

[0034] The crushed ore is conveyed into the drum, wetted by dilute sulfuric acid with a concentration of 0.1-1.0mol / L3, and mixed with 1-2% of the total mass of the ore. The drum is rolling, and biological oxidation exothermic substances are added during the rolling process, and the nozzle continuously sprays dilute sulfuric acid onto the surface of the ore. Most of the fine ore will adhere to the surface of coarse ore particles or spontaneously bond into group. The ore is transported to the storage yard after being processed by the drum, and is stacked into single or multiple ore piles according to known methods.

[0035] As we all know, it is necessary to level the yard an...

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 relates to sulfide ore bioleaching ore heap technology, and particularly discloses an antifreezing method of a sulfide ore bioleaching ore heap, which improves the bacterial concentration of a biological leachate, and realizes the artificial control of the heat output from an ore heap by adding a bacterial oxidation heat releasing substance into ore; a heat-insulating material and abreathable heat-absorbing material are coated on the surface of the ore heap so as to reduce heat dissipation of the ore heap and absorb solar heat energy; finally, through auxiliary heating pipes and the flow control of the ore heap leachate, the effect of the leachate on the temperature of the ore heap is reduced; after the control of each link, the temperature change of the ore heap can be changed artificially according to the ambient temperature of the external surface, and the effect of external ambient temperature on the bioleaching process is reduced or prevented. The application of the technology allows the application of the heap bioleaching technology in alpine region, and increases the heap bioleaching efficiency under winter or low-temperature conditions.

Description

technical field [0001] The invention relates to the technical field of bioleaching piles of sulfide ores, in particular to an antifreeze method for bioleaching piles of sulfide ores in low-temperature seasons and high-cold regions. Background technique [0002] Biological heap leaching is a kind of heap leaching method, which refers to spraying the solution containing microorganisms on the ore heap, so that the solution can use the selective oxidation and dissolution of microorganisms or chemical leaching during the infiltration process in the ore heap. It is a method to transfer the valuable components in the ore into solution for further extraction or recovery. Due to the characteristics of short process flow, good environment, simple equipment, and flexibility, the bioheap leaching method has advantages for the comprehensive utilization of complex, polymetallic, low-grade ores, and waste rocks. It has been used in copper, gold, nickel, cobalt, etc. It has been widely use...

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): C22B3/18
CPCY02P10/20
Inventor 舒荣波刘亚川陈炳炎熊述清刘厚明梁友伟
Owner INST OF MULTIPURPOSE UTILIZATION OF MINERAL RESOURCES CHINESE ACAD OF GEOLOGICAL SCI
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