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

Maximise the value of a sulphide ore resource through sequential waste rejection

A technology of ore and ore flow, applied in the field of maximizing the value of sulfide ore resources through continuous waste discharge, can solve problems such as uneconomical, and achieve the effect of optimizing operating costs and optimizing mineral value

Active Publication Date: 2020-04-21
ANGLO AMERICAN TECH SUSTAINABILITY SERVICES LTD
View PDF11 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although beneficiation techniques are known to address these issues, they are considered in isolation to address each constraint individually and are mostly considered uneconomical

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
  • Maximise the value of a sulphide ore resource through sequential waste rejection
  • Maximise the value of a sulphide ore resource through sequential waste rejection
  • Maximise the value of a sulphide ore resource through sequential waste rejection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0061] The present invention relates to a method that takes advantage of the natural heterogeneity of sulfide ore bodies and utilizes beneficiation techniques in a novel multistage configuration to remove the maximum amount of waste gangue prior to fine crushing. This excluded gangue is usually below economic reprocessing grade (ie waste), but can also be present as heap leaching feed; or as a low-grade stock that is processed later in the mine's life (grade analysis).

[0062] The exact amount of benefit will depend on the grade recovery characteristics of the particular ore body. However, using these technologies in combination, water and crushing energy consumption is typically reduced by 50-80% at the same mining cut-off grade (CoG). Alternatively, mining cut-off grades can be lowered, extending the life of the mine, achieving only slightly lower reductions in overall water and energy consumption. The present invention can also significantly reduce unit costs of productio...

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
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

This invention relates to an integrated process for recovering value metals from sulphide ore which includes the steps of bulk sorting 16 and screening 24 / 28 crushed ore. The sorted / screened coarse ore stream is ground and classified 20 to provide a coarse fraction 34 suitable for coarse flotation and a first fine fraction 38 suitable for flotation. The coarse fraction suitable for coarse flotation is subjected to coarse flotation 36 thereby to obtain a gangue 42 and an intermediate concentrate 46. The intermediate concentrate is subjected to grinding 48 to provide a second fine fraction suitable for conventional flotation. The first fine fraction and the second fine fraction are subjected to conventional flotation 40 to provide a concentrate and tailings. This process that capitalises onthe natural heterogeneity of sulphide orebodies, and utilises bulk sorting, screening and coarse flotation beneficiation technologies in a novel multistage configuration to reject the maximum quantityof waste gangue prior to fine comminution.

Description

Background technique [0001] Sulfide ores containing metals such as copper, gold, platinum group metals, nickel, lead and zinc are recovered commercially by fine grinding and flotation to concentrate valuable components and discard gangue. [0002] Conventional processes include grade control drilling to delineate the ore, blasting the necessary waste (below economic cut-off grade (CoG)) and ore, loading trucks to haul the ore for primary crushing and hauling the waste to a disposal area. The crushed ore is conveyed to a milling process, usually using semi-automatic grinding (SAG) or high pressure grinding rolls (HPGR); then ball milling to fully release the valuable particles at a p80 of 75-200 microns. The ore is then separated using a flotation process to produce marketable concentrates and tailings. The tailings from flotation are pumped to a tailings storage facility (TSF) and stored permanently. [0003] Since the conventional process chain requires all ore to be finely...

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 Applications(China)
IPC IPC(8): B02C23/08C22B1/00C22B3/22C22B13/00B03D1/00C22B15/00C22B19/00C22B23/00C22B34/12
CPCB02C23/10B02C23/14B03B9/00B03D1/002B03D1/012B03D1/02B03D1/087B03D1/12B03D1/14B03D1/24B03D2203/02C22B1/00C22B3/04Y02P10/20B03D1/00C22B13/00C22B15/0071C22B15/0076
Inventor 安东尼·欧文·菲尔默丹尼尔·约翰·亚历山大
Owner ANGLO AMERICAN TECH SUSTAINABILITY SERVICES LTD
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