Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of comprehensive recovery method of copper and iron from copper tailings

A recovery method and copper mining technology, which is applied in the field of tailings recovery, can solve the problems of idle waste of copper tailings and environmental hazards, and achieve the effects of avoiding idle waste, reducing environmental pollution, and improving resource utilization

Active Publication Date: 2017-07-28
DALIAN DEETOP ENVIRONMENTAL TECH CO LTD
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention proposes a comprehensive recovery method of copper and iron from copper tailings, which solves the problems of idle waste and environmental hazards of copper tailings in the prior art

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 kind of comprehensive recovery method of copper and iron from copper tailings

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 1 Shown, the copper tailings copper in the present embodiment, iron comprehensive recovery method may further comprise the steps:

[0031] (1) The original tailings are mined by water to make tailings slurry with a concentration of 25% to 30%, and then transport the tailings slurry to the spiral chute 1;

[0032] (2) Gravity separation and separation of the tailings slurry transported in step (1) through the spiral chute 1, and recovery of the gravity concentration slurry; concentration of the gravity tailings slurry through the first paste thickener 2 for use in tailings filling;

[0033] (3) Carry out water and ore separation by thickener 3 with the reclaimed concentrated ore pulp reclaimed in step (2), and recycle the separated water;

[0034] (4) Grinding the ore sand obtained by the separation of step (3) through the mill 4, the grinding particle size is -0.074mm, 75~80%;

[0035] (5) Introduce the regrinded ore pulp in step (4) in the roughing ta...

Embodiment 2

[0043] This embodiment is basically the same as Embodiment 1, the difference is:

[0044] The first medicament in the step (5) includes 75g / t of butyl xanthate, 900g / t of lime and No. 2 oil of 27g / t.

[0045] The second agent in step (5) includes 450g / t of lime.

[0046] The third agent in step (5) includes 450g / t of lime.

Embodiment 3

[0048] This embodiment is basically the same as Embodiment 1, the difference is:

[0049] The first medicament in the step (5) includes 85g / t of butyl xanthate, 1100g / t of lime and No. 2 oil of 33g / t.

[0050] The second agent in step (5) includes 550g / t of lime.

[0051] The third agent in step (5) includes 550g / t of lime.

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
Login to View More

Abstract

The invention provides a comprehensive recovery method for copper and iron in copper tailings. The comprehensive recovery method includes the following steps that raw tailings are subject to hydraulic mining to prepare tailing slurry, then the tailing slurry is conveyed to a spiral chute for reselection and separation, reselected tailing slurry is thickened through a first pasty fluid thickener, and the thickened tailing slurry is used for tailing filling; reselected concentrate slurry is subject to water-ore separation through a thickener, separated water is recycled and reused, and separated ore sand is levigated through a mill; reground ore slurry is subject to the floatation processes of flotation roughing, primary selection, secondary selection and scavenging, and copper concentrates are recovered; scavenging tailings are subject to magnetic separation recovering to obtain iron ore concentrates; and magnetic separation tailings are thickened through a second pasty fluid thickener, and the thickened magnetic separation tailings are used for tailing filling. By means of the comprehensive recovery method, the copper and the valuable element iron in the copper tailings can be comprehensively recovered, the resource using rate can be improved, idle waste of the copper tailings is avoided, and environmental pollution is reduced.

Description

technical field [0001] The invention relates to the technical field of recovery of tailings, in particular to a method for comprehensive recovery of copper and iron from copper tailings. Background technique [0002] With the mining and utilization of mine resources, the resources are increasingly depleted, and the raw ore extracted is generally poor and fine. Therefore, the comprehensive recovery of useful minerals from the tailings produced by ore dressing has received more attention. The discharged ore dressing tailings not only occupy a large area, but also pollute the environment, and it is a pity that a large amount of valuable minerals are wasted. Recovery of useful components from tailings is not only conducive to improving the utilization efficiency of mine resources, but also can provide more raw materials for industrial development. [0003] my country's primary copper ore resources are relatively small, but the secondary resources of copper tailings are relative...

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): B03B7/00B03B9/06
CPCB03B7/00B03B9/061Y02W30/52
Inventor 马跃高树龙李伟张勇王鞍山路畅韩洪鹏
Owner DALIAN DEETOP ENVIRONMENTAL TECH CO LTD