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

Valuable metal recovery system

A recovery system and valuable metal technology, applied in the field of mineral smelting, can solve the problems of high cost and low efficiency, and achieve the effect of reducing the cost of impurity removal, low energy consumption and high leaching rate

Active Publication Date: 2019-04-09
CHINA ENFI ENGINEERING CORPORATION
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a valuable metal recovery system to solve the problem of high efficiency and low cost in the recovery of valuable metals 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
  • Valuable metal recovery system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below in conjunction with examples.

[0034] As mentioned in the background technology, there are defects of high cost and low efficiency in recovering valuable metals from copper-cobalt-nickel sulfide in the prior art. In order to improve this situation, in a typical implementation of the present application, a A valuable metal recovery system, the system includes: a pressurized oxygen leaching unit 10 and a flash evaporation unit 20, wherein the pressurized oxygen leaching unit 10 includes a pressurized kettle 11, and the pressurized still 11 has an oxygen inlet 113 and a material inlet 111 And the material outlet 112; the flash unit 20 has a flash inlet 21, and the flash inlet 21 communicates with the material outlet 112.

[0035] The above-mentioned valu...

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
widthaaaaaaaaaa
Login to View More

Abstract

The invention provides a recycling system for valuable metal. The recycling system comprises a pressurizing oxygen soaking unit and a flash evaporation unit. The pressurizing oxygen soaking unit comprises a pressurizing kettle which is provided with oxygen inlets, a material inlet and a material outlet. The flash evaporation unit is provided with a flash evaporation inlet communicating with the material outlet. The pressurizing oxygen soaking unit communicates with the flash evaporation unit so that the valuable metal in copper-cobalt-nickel sulfide can be leached through a pressurizing oxygen soaking method, impurities such as iron and aluminum are inhibited in leached slag at the same time while a high copper-cobalt-nickel leaching rate is obtained, the purity of the valuable metal in a leaching agent is improved to a certain degree, and the impurity removing cost of the subsequent process is reduced. Due to the arrangement of the flash evaporation unit, cooling and pressure reduction can be conveniently conducted on a leached product of the pressurizing oxygen soaking unit at the high temperature and high pressure, gas and heat can be conveniently recycled, energy sources and energy consumption are reduced, and in addition, the system can be conveniently connected with an existing technology device.

Description

technical field [0001] The invention relates to the field of mineral smelting, in particular to a recovery system for valuable metals. Background technique [0002] Most of the existing copper-cobalt sulfides are processed by roasting process. This process has high requirements on sulfur content. If the content is too low, sulfur cannot achieve self-heating, and an auxiliary heating system is needed. In addition, the loss of cobalt in the roasting process is relatively serious, which makes the recovery rate of cobalt Low; and the concentration of valuable metals obtained by roasting is low, so it is difficult to recycle. In addition, the emission of sulfur-containing flue gas during the roasting process has serious environmental pollution and poor environmental protection effect. The roasting process also requires a relatively large fuel preparation system, roasting kiln system, flue gas treatment system, etc., and the investment in these equipment is relatively large. [...

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): C22B3/02C22B3/04C22B15/00C22B23/00
CPCC22B3/02C22B3/04C22B15/0065C22B23/0407Y02P10/20
Inventor 李少龙殷书岩傅建国聂颖陆业大刘诚董爱国
Owner CHINA ENFI ENGINEERING CORPORATION