CN106145465A - The apparatus and method of the cyanidation gold-extracted tail washings of electrodeionization electrodeposition process reuse - Google Patents

The apparatus and method of the cyanidation gold-extracted tail washings of electrodeionization electrodeposition process reuse Download PDF

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CN106145465A
CN106145465A CN201610683585.0A CN201610683585A CN106145465A CN 106145465 A CN106145465 A CN 106145465A CN 201610683585 A CN201610683585 A CN 201610683585A CN 106145465 A CN106145465 A CN 106145465A
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chamber
ion
exchange
tail washings
electrodeionization
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CN106145465B (en
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陈国宝
秦勇
朱张甫
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Northeastern University China
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
    • C02F1/4693—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrodialysis
    • C02F1/4695—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrodialysis electrodeionisation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
    • C02F2001/427—Treatment of water, waste water, or sewage by ion-exchange using mixed beds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/16—Nitrogen compounds, e.g. ammonia
    • C02F2101/18—Cyanides
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/20—Heavy metals or heavy metal compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/46—Apparatus for electrochemical processes
    • C02F2201/461—Electrolysis apparatus
    • C02F2201/46105—Details relating to the electrolytic devices
    • C02F2201/4618—Supplying or removing reactants or electrolyte
    • C02F2201/46185—Recycling the cathodic or anodic feed
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/16—Regeneration of sorbents, filters

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)
  • Electrolytic Production Of Metals (AREA)

Abstract

The invention belongs to Metallurgical Waste Water comprehensive control field, be specifically related to the apparatus and method of a kind of electrodeionization cyanidation gold-extracted tail washings of electrodeposition process reuse.The present invention's is to use one or more snippets ion-exchange chamber of one-level first to concentrate cyaniding tail washings and purification, then enters anode chamber electro-deposition reclaim heavy metal by collecting concentrated solution, is recycled as electrode water by post-depositional for negative electricity concentrated solution.The present invention have need not add chemical reagent, take up an area that space is little, current efficiency is high, equipment treatment effeciency is high, copper in tail washings can regeneration, backwater water stabilization can the advantages such as scale recycles, simple to operate, follow-up maintenance is convenient.

Description

The apparatus and method of electrodeionization-cyanidation gold-extracted tail washings of electrodeposition process reuse
Technical field
The invention belongs to Metallurgical Waste Water comprehensive control field, be specifically related to a kind of electrodeionization-electrodeposition process reuse cyanogen Change the apparatus and method of tailing solution of leaching gold.
Background technology
The gold extracting method that Cyanide Process is main.Along with the continuous exploitation of gold mine, high The tractable gold mine of grade is fewer and feweri, and complex multi-metal sulphide ore type gold mine becomes relatively common and is utilized gold mine.These Gold mine is associated with copper-bearing mineral more, and in cyanidation-leaching process, copper mineral can occur dissolving formation copper cyanogen complex ion to be present in leaching Going out in liquid, on the one hand cause the consumption of cyanide to increase, production cost steeply rises；On the other hand replaced by zinc or carbon suction Attached continuous carry gold after, be usually still substantial amounts of foreign metal cyanide and be trapped in tail washings.If these are direct containing cyanogen tail washings Returning cyaniding main flow process will cause copper and other heavy metals the most constantly to be accumulated.The heavy metal of accumulation may proceed to consume Substantial amounts of cyaniding medicament suppresses the leaching of gold simultaneously, and copper cyano complex can occur during the displacement of follow-up zinc and carbon adsorption Competition, reduces displacement or the adsorption efficiency of gold, thus decreases the response rate of gold.And if by these tail washings directly outer row, play Cyanide and the contained heavy metal of poison will bring serious threat to surrounding and residents ' health.Additionally, the cyanide of outer row With the loss that heavy metal also brings along economic benefit.
The most universal cyanide wastewater processes technique and mainly includes natural degradation, biodegradation, chemical oxidization method, electricity The methods such as solution, emulsion liquid membrane and acidization, destroy cyanide by these methods and make heavy metal precipitation so that cyaniding Waste water reaches discharge standard.But, these methods generally exist that flow process is longer, equipment acid etching seriously, do not take into full account the weights such as copper The recovery of metal, medicament usage amount greatly and easily cause secondary pollution, operation and maintenance cost height, the destruction of cyanide and heavy metal Precipitation be difficult to the defect such as the most up to standard.
Summary of the invention
In order to overcome problem of the prior art, the present invention provides a kind of electrodeionization-electrodeposition process reuse cyanidation gold-extracted The apparatus and method of tail washings, have and need not add chemical reagent, take up an area that space is little, current efficiency is high, equipment treatment effeciency is high, tail Copper in liquid can regeneration, backwater water stabilization can scale recycles, simple to operate, follow-up maintenance is convenient Advantage.
The device of the electrodeionization of the present invention-cyanidation gold-extracted tail washings of electrodeposition process reuse is by cathode chamber, ion-exchange chamber Forming with anode chamber, described cathode chamber is made up of anelectrode and anion exchange membrane, and anode chamber is handed over by negative electrode and cation Changing film composition, described ion-exchange chamber is arranged between anelectrode and negative electrode, and number is one or more, anion hand over Changing film and cation exchange membrane composition, the space between multiple ion-exchange chamber forms medial compartment, is filled with in ion-exchange chamber Cation and anion exchange material or adsorbing material.
Described cation and anion exchange material or adsorbing material be aperture be the anion-cation exchange resin of 0.1-3mm, the moon Cation exchange fibre, aperture are the porous pyrite of 0.01-3mm or granularity is profit soil swollen for 0.1-5mm, and the material of filling mixes Close uniformly.
Described positive electrode material is titanio sheet material, web material or the bar that corrosion resistance is strong, including titanium anode plate, iridium tantalum coating Ni-Ti anode net and painting platinum ruthenium titanium rod, described negative electrode material is not react with cyanogen root or the conductive material of micro-reaction, including stone Ink material.
The device using above-mentioned electrodeionization-cyanidation gold-extracted tail washings of electrodeposition process reuse carries out electrodeionization-electro-deposition The method of the cyanidation gold-extracted tail washings for the treatment of for reuse follows the steps below:
(1) cyanidation gold-extracted tail washings is sent into bottom ion-exchange chamber ion-exchange chamber, exchange through ion in ion-exchange chamber Or absorption, obtain concentrated solution and decyanation desalination solution, wherein concentrated solution is derived from the bottom of ion-exchange chamber and sends into anode chamber, de- Cyanogen desalination solution derives from ion-exchange chamber top, as water for industrial use；
(2) heavy metal ion in concentrated solution described in carries out electro-deposition in anode chamber, and cyanogen root concentrates further, is circulated Concentrated solution, is sent to it cathode chamber from top, and is circulated by the unidirectional importing in cathode chamber bottom anode chamber, when in positive electrode chamber Circulation concentrated solution cyanogen root concentration when reaching 1 ~ 5g/L, back into cyanidation gold-extracted flow process reuse, and decyanation desalination solution supplemented Enter positive electrode chamber.
Wherein, described cyanidation gold-extracted tail washings root 10-5000mg/L in cyanogen, cupric 10-5000mg/L, other kind huge sum of moneys Belonging to ion sum 10-400mg/L, pH is 5-14.
Described cathode chamber and anode chamber are filled with electrolyte solution before importing concentrated solution, and described electrolyte solution is Mass concentration is sodium sulfate or the potassium sulfate solution of 0.5-30 wt.%.
When described ion-exchange chamber is multiple, the circulation concentrated solution in step (2) sends into cathode chamber and medial compartment is carried out Circulation.
Compared with prior art, the feature of the present invention and providing the benefit that:
The technical scheme is that and use one or more snippets ion-exchange chamber of one-level first to carry out cyaniding tail washings concentrating and pure Change, then enter anode chamber electro-deposition recovery heavy metal by collecting concentrated solution, using post-depositional for negative electricity concentrated solution as electrode Water recycles.In the present invention, mainly there is the oxidation of oxygen evolution reaction and cyanide in positive pole；Negative pole is mainly metal complex ion Reduction, the precipitation of hydrogen and the reduction reaction of cyanide, main electrode process is as follows:
It is a kind of continuous print processing method that the electrodeionization of the present invention-electrodeposition process reclaims the tailing solution of leaching gold method in cyanogen, it is possible to Realize the fast enriching of cyanogen root, owing to introducing cation and anion exchange material or adsorbing material, electric current effect compared with general electrolytic method Rate is higher.
The present invention uses electro-deposition to reclaim the heavy metal ion such as copper, it is possible to quickly realize heavy metal and the separation of cyanogen root.
The present invention can continuous production process, easily amplify and adapt to plant-scale tail washings comprehensive utilization, good in economic efficiency.
The present invention use cation and anion exchange material or adsorbing material can regenerated in real time, simple to operate, can be with module Equalization, easy to maintenance.
The present invention can realize the zero-emission of cyaniding tail washings and the recycling of heavy metal simultaneously.
Accompanying drawing explanation
Fig. 1 is the device signal of the electrodeionization in the embodiment of the present invention 1-cyanidation gold-extracted tail washings of electrodeposition process reuse Figure；
Fig. 2 is the device schematic diagram of the electrodeionization in the embodiment of the present invention 2-cyanidation gold-extracted tail washings of electrodeposition process reuse；
Wherein: 1: anelectrode；2: cathode chamber；3: anion exchange membrane；4: ion-exchange chamber；5: cation exchange membrane；6: negative pole Room；7: heavy metal deposition layer；8: negative electrode；9: medial compartment.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail.
Cyanidation gold-extracted tail washings used by the embodiment of the present invention is A, B Liang Ge smeltery's offer respectively, and cyaniding tail washings A contains cyanogen Root 600 mg/L, cupric 300mg/L, be 8 containing zinc 100mg/L, pH；Cyaniding tail washings B root 2000mg/L in cyanogen, cupric 3500mg/ L, iron content 100mg/L, is 12 containing zinc 150mg/L, pH.
Embodiment 1
The device of the electrodeionization of the present embodiment-cyanidation gold-extracted tail washings of electrodeposition process reuse as it is shown in figure 1, by cathode chamber 2, from Sub-switch room 4 and anode chamber 6 form, and described cathode chamber 2 is made up of anelectrode 1 and anion exchange membrane 3, and positive electrode is iridium Tantalum coating titanium anode net, positive pole effective area is 100 cm2, fill electrolyte solution in cathode chamber 2, anode chamber 6 is by negative electrode 8 Forming with cation exchange membrane 5, negative material is graphite cake, and negative pole effective area is 100 cm2, in anode chamber 6, fill electrolysis Matter solution, described ion-exchange chamber 4 is arranged between anelectrode 1 and negative electrode 6, is provided with an ion exchange in the present embodiment Room, is made up of anion exchange membrane 3 and cation exchange membrane 5, and anion exchange membrane 3 and cation exchange membrane 5 are green by Hangzhou Close what Environmental Protection Technology Co., Ltd provided, effective film area 100cm2, the negative and positive filled in the present embodiment intermediate ion switch room 4 from Sub-exchange material is the mixture of D113 and D296 business soda acid resin.
Described electrolyte solution be mass concentration be the metabisulfite solution of 1.5 wt.%.
The device using above-mentioned electrodeionization-cyanidation gold-extracted tail washings of electrodeposition process reuse carries out electrodeionization-electro-deposition The method of the cyanidation gold-extracted tail washings for the treatment of for reuse follows the steps below:
(1) cyanidation gold-extracted tail washings being sent into bottom ion-exchange chamber ion-exchange chamber, flow velocity is 1.5 L/h, exchanges at ion Indoor through ion exchange or absorption, obtain concentrated solution and decyanation desalination solution, wherein concentrated solution is derived from the bottom of ion-exchange chamber And send into anode chamber, decyanation desalination solution derives from ion-exchange chamber top, as water for industrial use；
(2) heavy metal ion in concentrated solution described in carries out electro-deposition in anode chamber, and electro-deposition electric current density is 50 A/ m2, cyanogen root concentrates further, obtains circulating concentrated solution, it is sent to cathode chamber from top, and unidirectional by cathode chamber bottom Importing anode chamber circulates, and the circular flow of both positive and negative polarity is 1 L/h, when circulation concentrated solution cyanogen root concentration 1g/L in positive electrode chamber Time, back into cyanidation gold-extracted flow process reuse, and decyanation desalination solution is supplemented in positive electrode chamber.
Sulphuric acid and sodium hydroxide is used to adjust the acidity value of system to maintain stablizing of pH, continuous electrodeionization-electro-deposition After 3h, in decyanation desalination solution and concentrated solution, copper content is less than 1mg/L, and the cyanogen radical content in decyanation desalination solution is less than 5 mg/L, electricity Stream efficiency is 85%.
Embodiment 2
The device of the electrodeionization of the present embodiment-cyanidation gold-extracted tail washings of electrodeposition process reuse as in figure 2 it is shown, by cathode chamber 2, from Sub-switch room 4 and anode chamber 6 form, and described cathode chamber 2 is made up of anelectrode 1 and anion exchange membrane 3, and positive electrode is titanium Positive plate, positive pole effective area is 100 cm2, fill electrolyte solution in cathode chamber 2, anode chamber 6 is by negative electrode 8 and cation Exchange membrane 5 forms, and negative material is graphite felt, and negative pole effective area is 100 cm2, in anode chamber 6, fill electrolyte solution, institute The ion-exchange chamber 4 stated is arranged between anelectrode 1 and negative electrode 6, is provided with three ion-exchange chamber in the present embodiment, and ion is handed over Changing and also form medial compartment 9 between room, ion-exchange chamber 4 is made up of anion exchange membrane 3 and cation exchange membrane 5, and anion is handed over Change film 3 and cation exchange membrane 5 is ULTREXTMCMI-7000 and AMI-7001 of company, effective film area 200cm2, this enforcement Fill in example intermediate ion switch room 4 is the cation and anion exchange fiber of mix homogeneously.
Described electrolyte solution be mass concentration be the potassium sulfate solution of 4 wt.%.
The device using above-mentioned electrodeionization-cyanidation gold-extracted tail washings of electrodeposition process reuse carries out electrodeionization-electro-deposition The method of the cyanidation gold-extracted tail washings for the treatment of for reuse follows the steps below:
(1) cyanidation gold-extracted tail washings being sent into bottom ion-exchange chamber ion-exchange chamber, flow velocity is 4 L/h, in ion-exchange chamber Interior through ion exchange or absorption, obtain concentrated solution and decyanation desalination solution, wherein concentrated solution is derived also from the bottom of ion-exchange chamber Sending into anode chamber, decyanation desalination solution derives from ion-exchange chamber top, as water for industrial use；
(2) heavy metal ion in concentrated solution described in carries out electro-deposition in anode chamber, and electro-deposition electric current density is 30 A/ m2, cyanogen root concentrates further, obtains circulating concentrated solution, it is sent to cathode chamber from top, and unidirectional by cathode chamber bottom Importing anode chamber circulates, and the circular flow of both positive and negative polarity is 2L/h, when the circulation concentrated solution cyanogen root concentration in positive electrode chamber reaches 5g/ During L, back into cyanidation gold-extracted flow process reuse, and decyanation desalination solution is supplemented in positive electrode chamber.
Sulphuric acid and sodium hydroxide is used to adjust the acidity value of system to maintain stablizing of pH, continuous electrodeionization-electro-deposition After 3h, in decyanation desalination solution and concentrated solution, copper content is less than 0.1mg/L, and the cyanogen radical content in decyanation desalination solution is less than 1 mg/L, Current efficiency is 80%.
Embodiment 3
The device of the electrodeionization of the present embodiment-cyanidation gold-extracted tail washings of electrodeposition process reuse as it is shown in figure 1, by cathode chamber 2, from Sub-switch room 4 and anode chamber 6 form, and described cathode chamber 2 is made up of anelectrode 1 and anion exchange membrane 3, and positive electrode is titanium Anode network, positive pole effective area is 50 cm2, fill electrolyte solution in cathode chamber 2, anode chamber 6 is by negative electrode 8 and cation Exchange membrane 5 forms, and negative material is graphite rod, and negative pole effective area is 50 cm2, in anode chamber 6, fill electrolyte solution, institute The ion-exchange chamber 4 stated is arranged between anelectrode 1 and negative electrode 6, is provided with an ion-exchange chamber in the present embodiment, by the moon from Proton exchange 3 and cation exchange membrane 5 form, anion exchange membrane 3 and cation exchange membrane 5 effective film area 50cm2, this reality Fill in Shi Li intermediate ion switch room 4 is the pyrite of granularity 0.074mm.
Described electrolyte solution be mass concentration be the metabisulfite solution of 5.5 wt.%.
The device using above-mentioned electrodeionization-cyanidation gold-extracted tail washings of electrodeposition process reuse carries out electrodeionization-electro-deposition The method of the cyanidation gold-extracted tail washings for the treatment of for reuse follows the steps below:
(1) cyanidation gold-extracted tail washings being sent into bottom ion-exchange chamber ion-exchange chamber, flow velocity is 4L/h, in ion-exchange chamber Through ion exchange or absorption, obtaining concentrated solution and decyanation desalination solution, wherein concentrated solution is derived from the bottom of ion-exchange chamber and is sent Entering anode chamber, decyanation desalination solution derives from ion-exchange chamber top, as water for industrial use；
(2) heavy metal ion in concentrated solution described in carries out electro-deposition in anode chamber, and electro-deposition electric current density is 60 A/ m2, cyanogen root concentrates further, obtains circulating concentrated solution, it is sent to cathode chamber from top, and unidirectional by cathode chamber bottom Importing anode chamber circulates, and the circular flow of both positive and negative polarity is 2 L/h, when the circulation concentrated solution cyanogen root concentration in positive electrode chamber reaches During 2g/L, back into cyanidation gold-extracted flow process reuse, and decyanation desalination solution is supplemented in positive electrode chamber.
Sulphuric acid and sodium hydroxide is used to adjust the acidity value of system to maintain stablizing of pH, continuous electrodeionization-electro-deposition After 3h, in decyanation desalination solution and concentrated solution, copper content is less than 5mg/L, and the cyanogen radical content in decyanation desalination solution is less than 5 mg/L, electricity Stream efficiency is 90%.

Claims (7)

1. the device of electrodeionization-cyanidation gold-extracted tail washings of electrodeposition process reuse, it is characterised in that handed over by cathode chamber, ion Change room and anode chamber composition, described cathode chamber is made up of anelectrode and anion exchange membrane, anode chamber by negative electrode and sun from Proton exchange form, described ion-exchange chamber is arranged between anelectrode and negative electrode, and number is one or more, by the moon from Proton exchange and cation exchange membrane composition, the space between multiple ion-exchange chamber forms medial compartment, fills out in ion-exchange chamber It is filled with cation and anion exchange material or adsorbing material.
The device of a kind of electrodeionization the most according to claim 1-cyanidation gold-extracted tail washings of electrodeposition process reuse, its feature Be described cation and anion exchange material or adsorbing material be aperture be the anion-cation exchange resin of 0.1-3mm, negative and positive from Sub-exchange fiber, aperture are the porous pyrite of 0.01-3mm or granularity is profit soil swollen for 0.1-5mm, and the material mixing of filling is equal Even.
The device of a kind of electrodeionization the most according to claim 1-cyanidation gold-extracted tail washings of electrodeposition process reuse, its feature It is that described positive electrode material is titanio sheet material, web material or the bar that corrosion resistance is strong, including titanium anode plate, iridium tantalum coated titanium sun Polar net and painting platinum ruthenium titanium rod, described negative electrode material is not react with cyanogen root or the conductive material of micro-reaction, including graphite material Material.
4. use the device of electrodeionization as claimed in claim 1-cyanidation gold-extracted tail washings of electrodeposition process reuse to carry out electricity The method of ion-cyanidation gold-extracted tail washings of electrodeposition process reuse, it is characterised in that follow the steps below:
(1) cyanidation gold-extracted tail washings is sent into bottom ion-exchange chamber ion-exchange chamber, exchange through ion in ion-exchange chamber Or absorption, obtain concentrated solution and decyanation desalination solution, wherein concentrated solution is derived from the bottom of ion-exchange chamber and sends into anode chamber, de- Cyanogen desalination solution derives from ion-exchange chamber top, as water for industrial use；
(2) heavy metal ion in concentrated solution described in carries out electro-deposition in anode chamber, and cyanogen root concentrates further, is circulated Concentrated solution, is sent to it cathode chamber from top, and is circulated by the unidirectional importing in cathode chamber bottom anode chamber, when in positive electrode chamber Circulation concentrated solution cyanogen root concentration when reaching 1 ~ 5g/L, back into cyanidation gold-extracted flow process reuse, and decyanation desalination solution supplemented Enter positive electrode chamber.
The method of a kind of electrodeionization the most according to claim 4-cyanidation gold-extracted tail washings of electrodeposition process reuse, its feature Be described cyanidation gold-extracted tail washings root 10-5000mg/L in cyanogen, cupric 10-5000mg/L, other kind heavy metal ion it With 10-400mg/L, pH are 5-14.
The method of a kind of electrodeionization the most according to claim 4-cyanidation gold-extracted tail washings of electrodeposition process reuse, its feature Being that described cathode chamber and anode chamber are filled with electrolyte solution before importing concentrated solution, described electrolyte solution is quality Concentration is sodium sulfate or the potassium sulfate solution of 0.5-30 wt.%.
The method of a kind of electrodeionization the most according to claim 4-cyanidation gold-extracted tail washings of electrodeposition process reuse, its feature Being when described ion-exchange chamber is multiple, the circulation concentrated solution in step (2) sends into cathode chamber and medial compartment is circulated.
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108754535A (en) * 2018-07-06 2018-11-06 拉萨品志工贸有限公司 A kind of cupric tailing solution of leaching gold electro deposited copper new recovering technology
CN110863218A (en) * 2019-11-27 2020-03-06 东北大学 Method for extracting gold by adopting molten salt electrolysis enrichment
CN113337848A (en) * 2021-05-31 2021-09-03 桂林正翰实业投资有限公司 Method for purifying gold from gold pregnant solution based on electrodeionization and electrodeposition equipment
CN113426495A (en) * 2021-06-11 2021-09-24 河海大学 Device and method for enhancing performance of desalination cell by using ion exchange mixed bed

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CN102491460A (en) * 2011-12-22 2012-06-13 浙江大学 Soluble metal salt recovery and wastewater purification device and method thereof
CN102745782A (en) * 2012-06-20 2012-10-24 江苏科技大学 Electrodeionization method and electrodeionization apparatus for treating low concentration ionic solution

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Publication number Priority date Publication date Assignee Title
CN102491460A (en) * 2011-12-22 2012-06-13 浙江大学 Soluble metal salt recovery and wastewater purification device and method thereof
CN102745782A (en) * 2012-06-20 2012-10-24 江苏科技大学 Electrodeionization method and electrodeionization apparatus for treating low concentration ionic solution

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108754535A (en) * 2018-07-06 2018-11-06 拉萨品志工贸有限公司 A kind of cupric tailing solution of leaching gold electro deposited copper new recovering technology
CN110863218A (en) * 2019-11-27 2020-03-06 东北大学 Method for extracting gold by adopting molten salt electrolysis enrichment
CN110863218B (en) * 2019-11-27 2021-11-30 东北大学 Method for extracting gold by adopting molten salt electrolysis enrichment
CN113337848A (en) * 2021-05-31 2021-09-03 桂林正翰实业投资有限公司 Method for purifying gold from gold pregnant solution based on electrodeionization and electrodeposition equipment
CN113426495A (en) * 2021-06-11 2021-09-24 河海大学 Device and method for enhancing performance of desalination cell by using ion exchange mixed bed

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