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

Method for implementing copper-cobalt-zinc separation, enrichment and purification by using heavy metal adsorbing material

A technology for adsorbing materials and heavy metals, applied in chemical instruments and methods, alkali metal compounds, adsorbed water/sewage treatment, etc., can solve the problems of high cost and low removal efficiency of heavy metal ions

Inactive Publication Date: 2014-05-07
工信华鑫科技有限公司
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the current treatment methods for various types of heavy metal wastewater have the defects of low removal efficiency and high cost of heavy metal ions in wastewater.

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
  • Method for implementing copper-cobalt-zinc separation, enrichment and purification by using heavy metal adsorbing material
  • Method for implementing copper-cobalt-zinc separation, enrichment and purification by using heavy metal adsorbing material
  • Method for implementing copper-cobalt-zinc separation, enrichment and purification by using heavy metal adsorbing material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0052] Pretreatment: Disperse the raw silica gel in a 6mol / L hydrochloric acid solution under an ultrasonic field of 250 watts, heat and reflux for 3 hours, wherein the mass ratio of the raw silica gel to the hydrochloric acid solution is 16:1; then filter to remove the acid solution, The filter cake was washed to neutrality, and activated silica gel was obtained after vacuum drying at 100°C;

[0053] Silica gel bonding reaction: add anhydrous toluene solution and silylating reagent to the reaction vessel, stir to dissolve the silylating reagent 3-ethylenediaminopropyltrimethoxysilane in the anhydrous toluene solution to obtain the first solution, wherein , the mass ratio of silylating agent to toluene solution is 5: 1; add anhydrous DMF to activated silica gel, stir and mix uniformly to obtain the second solution, wherein the mass ratio of activated silica gel to DMF is 7: 1; silanization The mass ratio of reagent to activated silica gel is 8:1;

[0054] Add the first soluti...

Embodiment 3

[0060] Pretreatment: Disperse the raw silica gel in a 5mol / L hydrochloric acid solution under an ultrasonic field of 200 watts, heat and reflux for 4 hours, wherein the mass ratio of the raw silica gel to the hydrochloric acid solution is 15:1; then filter to remove the acid solution, The filter cake was washed to neutrality, and activated silica gel was obtained after vacuum drying at 110°C;

[0061] Silica gel bonding reaction: add anhydrous toluene solution and silylating reagent to the reaction vessel, stir to dissolve the silylating reagent 3-ethylenediaminopropyltrimethoxysilane in the anhydrous toluene solution to obtain the first solution, wherein , the mass ratio of the silylating agent to the toluene solution is 6: 1; add anhydrous DMF to the activated silica gel, stir and mix uniformly to obtain the second solution, wherein the mass ratio of the activated silica gel to DMF is 8: 1; silanization The mass ratio of reagent to activated silica gel is 9:1;

[0062] Add ...

experiment example 1

[0092] In this experimental example, the heavy metal adsorption material prepared in Example 1 of the preparation method of the heavy metal adsorption material was used.

[0093] S1, respectively filling heavy metal adsorption materials into each adsorption column of the continuous adsorption exchange equipment; wherein, the continuous adsorption exchange equipment is composed of a first adsorption column, a second adsorption column and a third adsorption column in series;

[0094] S2, adjusting the pH of the solution to be treated containing copper ions, cobalt ions and zinc ions to 3.2 to obtain an acid dipping solution;

[0095] S3, injecting the acid leaching solution into the continuous adsorption exchange equipment after S1 operation;

[0096] S4, the continuous adsorption exchange equipment separates, enriches and purifies the acid leach solution at 25°C, specifically including: pumping the acid leach solution with a pH of 3.2 into the liquid inlet of the continuous ads...

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 provides a method for implementing copper-cobalt-zinc separation, enrichment and purification by using a heavy metal adsorbing material, which comprises the following steps: S1. respectively filling a heavy metal adsorbing material into various adsorption columns of continuous adsorption exchange equipment, wherein the continuous adsorption exchange equipment is composed of a first adsorption column, a second adsorption column and a third adsorption column which are connected in series; S2. regulating the pH value of a solution to be treated containing copper ions, cobalt ions and zinc ions to 0.5-5.0 to obtain an acid leaching solution; S3. injecting the acid leaching solution into the continuous adsorption exchange equipment after the operation of S1; and S4. carrying out separation, enrichment and purification on the acid leaching solution by using the continuous adsorption exchange equipment. The experiment proves that the accurate control on the temperature and flow rate of the treatment solution can implement separation of copper, cobalt and zinc; and therefore, the method provided by the invention can be used for separating and recovering slight or trace amounts of copper, cobalt and zinc in the liquid.

Description

technical field [0001] The invention belongs to the technical field of heavy metal separation, and in particular relates to a method for separating, enriching and purifying copper, cobalt and zinc through heavy metal adsorption materials. Background technique [0002] With the rapid development of the world economy and the continuous increase of population, the relative shortage of resources and weak environmental carrying capacity have become important bottlenecks in the development of the world. Building a resource-saving and environment-friendly society and promoting the construction of ecological civilization have become the topics of concern to all countries in the world today. [0003] At present, for various industrial wastewater, domestic sewage and nuclear industrial wastewater containing heavy metal ions, chemical precipitation method, redox method or ion exchange method are generally used to treat them, so as to reduce the content of heavy metals in water resource...

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): B01J20/22B01J20/28C02F1/28C22B7/00
CPCY02P10/20
Inventor 邱建宁徐纯理
Owner 工信华鑫科技有限公司