Method for preparing copper crude ore from copper-containing waste water

A waste water and coarse ore technology, applied in chemical instruments and methods, water pollutants, water/sewage treatment, etc., can solve problems such as environmental pollution, achieve the effects of avoiding secondary pollution, stabilizing the structure, and realizing comprehensive utilization

Inactive Publication Date: 2016-09-28
JIANGSU LONGCHANG CHEM
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The copper content in copper-containing wastewater is as high as 0.1-35g / L, which greatly exceeds the sewage discharge standard (GB8978-1996). If it is discharged directly, it will seriously pollute the environment

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The method for preparing copper rough ore from copper-containing wastewater in this embodiment takes copper in copper-containing wastewater as the measurement standard, and puts in calcium chloroaluminate according to the mass ratio of copper:calcium chloroaluminate=1:8, and the calcium chloroaluminate in the calcium chloroaluminate The calcium-aluminum ratio is 3:1, react at room temperature for 8 hours, separate the precipitated calcium cuproaluminate, and then filter the precipitated calcium cuproaluminate, and then dry the filter cake at 400°C to obtain Copper crude ore, wherein the copper content in the copper crude ore is 16.5%.

Embodiment 2

[0016] The method for preparing copper coarse ore from copper-containing wastewater in this embodiment takes copper in copper-containing wastewater as the measurement standard, and puts in calcium chloroaluminate according to the mass ratio of copper: calcium chloroaluminate=1: 18, and the calcium chloroaluminate in the calcium chloroaluminate The calcium-aluminum ratio is 3:1, react at room temperature for 2 hours, separate the precipitate calcium cuproaluminate, and then filter the precipitate, and dry the filter cake at 100°C after the press filter to obtain Copper crude ore, wherein the copper content in the copper crude ore is 18.5%.

Embodiment 3

[0018] The method for preparing copper rough ore from copper-containing wastewater in this embodiment takes copper in copper-containing wastewater as the measurement standard, and puts in calcium chloroaluminate according to the mass ratio of copper:calcium chloroaluminate=1:12, and the calcium chloroaluminate in the calcium chloroaluminate The calcium-aluminum ratio is 3:1, react at room temperature for 5 hours, separate the precipitated calcium cuproaluminate, and then filter the precipitated calcium copper-aluminate, and then dry the filter cake at 250°C to obtain Copper rough ore, wherein the copper content in the copper rough ore is 23.5%.

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 a method for preparing copper crude ore from copper-containing waste water. The method comprises, based on copper-containing waste water copper weight, putting calcium chloroaluminate into the copper-containing waste water according to a mass ratio of copper: calcium chloroaluminate of 1: 8-18, carrying out a reaction process at the normal temperature for 2-8h, carrying out press filtration, and drying the filter cake at a temperature of 100-400 DEG C to obtain copper crude ore. The method utilizes a calcium chloroaluminate treatment agent to treat copper-containing waste water and the treated solid slag is subjected to press filtration and drying to form a desired product. Through a chemical bond, the desired product has a stable structure, prevents leaching loss and secondary pollution, solves the problems of heavy metal waste water treatment and realizes comprehensive utilization of copper-containing waste water.

Description

technical field [0001] The invention belongs to the technical field of waste water recovery and utilization in environmental protection, and in particular relates to a method for preparing copper rough ore from copper-containing waste water. Background technique [0002] Copper-containing wastewater is a type of wastewater produced by metallurgy, electronics and other industries, mainly including printed circuit board etching wastewater, electroplating wastewater, etc. The copper content in copper-containing wastewater is as high as 0.1-35g / L, which greatly exceeds the sewage discharge standard (GB8978-1996). If it is discharged directly, it will seriously pollute the environment. Therefore, necessary measures must be taken to treat copper-containing wastewater. At present, the treatment methods for copper-containing wastewater mainly include chemical method, ion exchange method, evaporation concentration method, adsorption method, membrane separation technology and biologi...

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): C02F9/04C02F101/20
CPCC02F1/001C02F1/5236C02F9/00C02F2101/20
Inventor 张剑宇赵雪松王映辉
Owner JIANGSU LONGCHANG CHEM
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap