CN102560560A - Cylindrical jet-state direct electro-deposition device and method for using same to electrically deposite metal - Google Patents

Cylindrical jet-state direct electro-deposition device and method for using same to electrically deposite metal Download PDF

Info

Publication number
CN102560560A
CN102560560A CN2012100538937A CN201210053893A CN102560560A CN 102560560 A CN102560560 A CN 102560560A CN 2012100538937 A CN2012100538937 A CN 2012100538937A CN 201210053893 A CN201210053893 A CN 201210053893A CN 102560560 A CN102560560 A CN 102560560A
Authority
CN
China
Prior art keywords
tube
internal layer
layer anode
anode tube
pipe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN2012100538937A
Other languages
Chinese (zh)
Other versions
CN102560560B (en
Inventor
徐纯理
邱建宁
赵路
李新华
杨斗
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GONGXIN HUAXIN TECHNOLOGY Co Ltd
Original Assignee
GONGXIN HUAXIN TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GONGXIN HUAXIN TECHNOLOGY Co Ltd filed Critical GONGXIN HUAXIN TECHNOLOGY Co Ltd
Priority to CN201210053893.7A priority Critical patent/CN102560560B/en
Publication of CN102560560A publication Critical patent/CN102560560A/en
Application granted granted Critical
Publication of CN102560560B publication Critical patent/CN102560560B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Electrolytic Production Of Metals (AREA)

Abstract

The invention relates to a cylindrical jet-state direct electro-deposition device and a method for using the device to electrically deposite metal; the device comprises an outer layer cathode pipe, an inner layer anode pipe, a feeding liquid pipe and a discharge hole, wherein the outer layer cathode pipe is sheathed outside the inner layer anode pipe; one end of the inner layer anode pipe is sealed, and the other end of the inner layer anode pipe is communicated with the feeding liquid pipe in a sealing way; one end of the outer layer cathode pipe close to the feeding liquid pipe is connected with the inner layer anode pipe arranged at the same end in a sealing way; the other end of the outer layer cathode pipe is communicated with the discharge hole; and the inner layer anode pipe is provided with a small anode pipe wall hole used for communicating the outer layer cathode pipe with the inner layer anode pipe. The device and the method can be applied to the large-scale electro-deposition production, and is capable of realizing automatic continuous large-scale industrial production as well as low-grade ore and high-quality yield; and the device and the method belong to an environment-friendly new technology which is low in investment cost, high in yield, and low in energy consumption, carbon emission and pollution.

Description

The direct electrodeposition apparatus of cylindric jet attitude and use the method for its electrowinning
Technical field
The present invention relates to hydrometallurgy heavy metal height refining electrodeposition technical field, relate in particular to a kind of can environmental protection, the direct electrodeposition apparatus of cylindric jet attitude of energy-conservation, low-carbon emission and use the method for its electrowinning.
Background technology
Metal is directly galvanic deposit from solution, belongs to the scope of hydrometallurgy, from the ore to the raw material, expects material from former, relates to very electrochemical phenomena and application widely, theoretically promotes with using mutually, has promoted the metallurgical electrochemistry development of science and technology.In hydrometallurgy process, from the present utilisation technology of leaching, purification, extraction, purified of metal, the most of metal in the periodictable all can be prepared by electrolysis process, but industry is at present gone up the metal of extensiveization electrolysis production and is had two approximately, 30 kind.
Electrolysis (Electrolysis) be with electric current through electrolyte solution or molten state material, (claiming electrolytic solution again), on negative electrode and anode, cause the process of redox reaction.
Electrolysis is widely used in the metallurgical industry, as extracting metal (electrolytic metallurgy) or purify metals (refining) from ore or compound, and from solution, deposits metal (plating).Electrolysis is a kind of means of very strong promotes oxidn reduction reaction, and many redox reactions of carrying out of being difficult to can realize through electrolysis.For example: can the fused fluorochemical be oxidized to simple substance fluoride on anode, the fused lithium salts is reduced into metallic lithium on negative electrode.Electrolytic industry has vital role in national economy; The refining of the smelting of many non-ferrous metals (like sodium, potassium, magnesium, aluminium etc.) and rare metal (like zirconium, hafnium etc.) and metal (like copper, zinc, lead etc.); The preparation of basic chemical industry product (like hydrogen, oxygen, caustic soda, Potcrate, hydrogen peroxide, oxalic acid dinitrile etc.); Also have plating, electropolishing, anodic oxidation etc., all realize through electrolysis.At present, industry being is just is being researched and developed new electrolysis electrodeposition technology and equipment for solving many drawbacks such as the environmental pollution, the energy consumption that are brought in the metallurgical electrolysis process are big both at home and abroad.
Galvanic deposit (electrodeposition) is the process of metal or alloy electrochemical deposition from its compound water solution, non-aqueous solution or fused salt, is the basis of electrolytic etching of metal smelting, electrorefining, plating, electroforming process.These processes are carried out under certain ionogen and operational condition.
Electrolysis process is adopted in galvanic deposit of the prior art mostly; Require the leach liquor metal will reach the concentration of 45g/l~50g/l; And adopt the direct electrodeposition process of cylindric jet attitude; The solution containing metal amount of getting off from the desorb of continuous adsorption exchange bed only requires and reaches 5g/L, but just direct production high purity metal material.
Summary of the invention
The objective of the invention is to design a kind of novel direct electrodeposition apparatus of cylindric jet attitude, address the above problem.
To achieve these goals, the technical scheme of the present invention's employing is following:
The direct electrodeposition apparatus of a kind of cylindric jet attitude comprises outer cathode tube, internal layer anode tube, feeding liquid pipe and discharge port, and said outer cathode tube is set in outside the said internal layer anode tube; The one end sealing of said internal layer anode tube, the other end is communicated with the said feeding liquid seal of tube; Be tightly connected between the internal layer anode tube of said outer cathode tube near end of said feeding liquid pipe and same end, the other end of said outer cathode tube is communicated with said discharge port; Offer the anode tube wall aperture that is communicated with said outer cathode tube and said internal layer anode tube on the said internal layer anode tube.
Also comprise electrolysis liquid pool and liquor pump, said feeding liquid pipe is communicated to said electrolysis liquid pool through said liquor pump.
Said liquor pump is a peristaltic pump.
Concentric setting between said outer cathode tube and the said internal layer anode tube, the distance between the outer wall of the inwall of said outer cathode tube and said internal layer anode tube is 10mm-30mm, the diameter of said anode tube wall aperture is 1mm-3mm; Said outer cathode tube is a stainless steel, and said internal layer anode tube is a titanium pipe rhodanizing material.
Distance between the outer wall of the inwall of said outer cathode tube and said internal layer anode tube is 20mm.
One end of said internal layer anode tube is by the sealing of PVC material, and the other end also is communicated with by the sealing of PVC material with said feeding liquid pipe; Also be tightly connected between the internal layer anode tube of said outer cathode tube near end of said feeding liquid pipe and same end by the PVC material.
The above row's anode tube wall aperture and down the length of the said internal layer anode tube between the said anode tube wall aperture of row constitute galvanic deposit tube useful length, said galvanic deposit tube useful length is 0.8m-1.2m.
A kind of method of using the direct electrodeposition apparatus electrodeposit metals of said cylindric jet attitude is characterized in that, comprises the steps:
The first step is electrically connected to power cathode and positive source, energized respectively with said outer cathode tube and said internal layer anode tube;
In second step, metal ion solution gets in the said internal layer anode tube with certain pressure and flow from the centre of said internal layer anode tube under the effect of said liquor pump from bottom to top; Said metal ion solution is ejected into the surface of said outer cathode tube inwall from said anode tube wall aperture; The concentration polarization that has destroyed cathode surface makes metals ion successfully be deposited on cathode surface; And play the said metal ion solution stirring blended effect that makes, on said outer cathode tube inwall, form elemental metals.
Beneficial effect of the present invention can be summed up as follows:
1, the solution containing metal amount that equipment of the present invention and method are got off from the desorb of continuous adsorption exchange bed only requires and reaches 5g/L that just directly electrodeposition is produced the high purity metal material.
2; The present invention can be in the application during extensive galvanic deposit is produced, and it makes hydrometallurgy with the combination that the continuous adsorption switching equipment of heavy metal sorbing material is housed; From ore to the refining electrodeposition; Its main process become if dissolve soak, purification enrichment---direct these three operations of galvanic deposit, can realize robotization, serialization, extensive chemical industry production simultaneously, can realize that again ore is low-grade; Output high-quality (is that example can reach more than 99.99% with copper), low cost of investment, high production, less energy-consumption, low-carbon emission, the friendly type new technology of low contaminate environment.
3, the present invention can effectively overcome the concentration polarization of cathode surface, thus make metals ion on negative electrode successfully reduce deposition at cathode surface.
Description of drawings
Fig. 1 is the structural representation of this equipment;
Fig. 2 is the structural representation of internal layer anode tube among the present invention.
Embodiment
Clearer for technical problem, technical scheme and beneficial effect that the present invention is solved, below in conjunction with accompanying drawing and embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The direct electrodeposition apparatus of a kind of cylindric jet attitude as depicted in figs. 1 and 2 comprises outer cathode tube 1, internal layer anode tube 2, feeding liquid pipe 3, discharge port 4, electrolysis liquid pool and liquor pump, and said outer cathode tube 1 is set in outside the said internal layer anode tube 2; The one end sealing of said internal layer anode tube 2, the other end is communicated with said feeding liquid pipe 3 sealings, and said feeding liquid pipe 3 is communicated to said electrolysis liquid pool through said liquor pump; Be tightly connected between the internal layer anode tube 2 of said outer cathode tube 1 near end of said feeding liquid pipe 3 and same end, the other end of said outer cathode tube 1 is communicated with said discharge port 4; Offer the anode tube wall aperture 5 that is communicated with said outer cathode tube 1 and said internal layer anode tube 2 on the said internal layer anode tube 2; Concentric setting between said outer cathode tube 1 and the said internal layer anode tube 2, the distance between the outer wall of the inwall of said outer cathode tube 1 and said internal layer anode tube 2 is 10mm-30mm, the diameter of said anode tube wall aperture 5 is 1mm-3mm; Said outer cathode tube 1 is a stainless steel, and said internal layer anode tube 2 is a titanium pipe rhodanizing material; The above row's anode tube wall aperture 5 and down the length of the said internal layer anode tube 2 between the said anode tube wall aperture 5 of row constitute galvanic deposit tube useful length, said galvanic deposit tube useful length is 0.8m-1.2m.
In the embodiment of other optimizations, said liquor pump is a peristaltic pump; Distance between the outer wall of the inwall of said outer cathode tube 1 and said internal layer anode tube 2 is 20mm; One end of said internal layer anode tube 2 is by the sealing of PVC material, and the other end also is communicated with by the sealing of PVC material with said feeding liquid pipe 3; Also be tightly connected between the internal layer anode tube 2 of said outer cathode tube 1 near end of said feeding liquid pipe 3 and same end by the PVC material.
A kind of method of using the direct electrodeposition apparatus electrodeposit metals of above-mentioned cylindric jet attitude comprises the steps:
The first step is electrically connected to power cathode and positive source, energized with said outer cathode tube 1 respectively with said internal layer anode tube 2;
In second step, metal ion solution gets in the said internal layer anode tube 2 with certain pressure and flow from the centre of said internal layer anode tube 2 under the effect of said liquor pump from bottom to top; Said metal ion solution is ejected into the surface of said outer cathode tube 1 inwall from said anode tube wall aperture 5; The concentration polarization that has destroyed cathode surface makes metals ion successfully be deposited on cathode surface; And play the said metal ion solution stirring blended effect that makes, on said outer cathode tube 1 inwall, form elemental metals.
The present invention relates to a kind of energy-efficient direct electric deposition device of novel cylindric jet attitude, can effectively overcome the concentration polarization of cathode surface, thus make metals ion on negative electrode successfully reduce deposition at cathode surface.
The direct galvanic deposit new installation of cylindric jet attitude of present embodiment, be with each galvanic deposit tube by cathode tube (outer cathode tube 1) and the tube in a concentric tube be that anode tube (internal layer anode tube 2) is formed.The material of anode tube is the rhodanizing of titanium pipe, and cathode tube is a stainless steel, and effectively long 0.8~1.2 meter in galvanic deposit tube seals with the PVC material up and down, and concentric and relative fixed is in the middle of cathode tube with negative electrode for anode, and anode and cathode spacing are 20 millimeter; Anode is an open tube, links to each other from the bottom with feeding liquid, is drilled with some apertures of 1~23 millimeter on the anode open tube; Under of the effect of metal ion solution at pump, in the middle of anode tube, get in the anode open tube with certain pressure and flow from bottom to top, liquid will be ejected into cathode surface from 1~3 millimeter aperture; Like this; At first destroyed the concentration polarization of cathode surface, made metals ion can successfully be deposited on cathode surface, it also plays the liquid agitation blended effect that makes simultaneously.Electrolytic solution flows through electrodeposition pond (being the direct electrodeposition apparatus of cylindric jet attitude) from the bottom through the peristaltic pump extracting.Between the anode in electrodeposition pond and negative electrode, switch on, metal begins to form metal sheet on negative electrode.
More than through the detailed description of concrete and preferred embodiment the present invention; But those skilled in the art should be understood that; The present invention is not limited to the above embodiment; All within spirit of the present invention and principle, any modification of being done, be equal to replacement etc., all should be included within protection scope of the present invention.

Claims (8)

1. direct electrodeposition apparatus of cylindric jet attitude, it is characterized in that: comprise outer cathode tube, internal layer anode tube, feeding liquid pipe and discharge port, said outer cathode tube is set in outside the said internal layer anode tube; The one end sealing of said internal layer anode tube, the other end is communicated with the said feeding liquid seal of tube; Be tightly connected between the internal layer anode tube of said outer cathode tube near end of said feeding liquid pipe and same end, the other end of said outer cathode tube is communicated with said discharge port; Offer the anode tube wall aperture that is communicated with said outer cathode tube and said internal layer anode tube on the said internal layer anode tube.
2. the direct electrodeposition apparatus of cylindric jet attitude according to claim 1 is characterized in that: also comprise electrolysis liquid pool and liquor pump, said feeding liquid pipe is communicated to said electrolysis liquid pool through said liquor pump.
3. the direct electrodeposition apparatus of cylindric jet attitude according to claim 2, it is characterized in that: said liquor pump is a peristaltic pump.
4. the direct electrodeposition apparatus of cylindric jet attitude according to claim 1; It is characterized in that: concentric setting between said outer cathode tube and the said internal layer anode tube; Distance between the outer wall of the inwall of said outer cathode tube and said internal layer anode tube is 10mm-30mm, and the diameter of said anode tube wall aperture is 1mm-3mm; Said outer cathode tube is a stainless steel, and said internal layer anode tube is a titanium pipe rhodanizing material.
5. the direct electrodeposition apparatus of cylindric jet attitude according to claim 4, it is characterized in that: the distance between the outer wall of the inwall of said outer cathode tube and said internal layer anode tube is 20mm.
6. the direct electrodeposition apparatus of cylindric jet attitude according to claim 1 is characterized in that: an end of said internal layer anode tube is by the sealing of PVC material, and the other end also is communicated with by the sealing of PVC material with said feeding liquid pipe; Also be tightly connected between the internal layer anode tube of said outer cathode tube near end of said feeding liquid pipe and same end by the PVC material.
7. the direct electrodeposition apparatus of cylindric jet attitude according to claim 1; It is characterized in that: the above row's anode tube wall aperture and down the length of the said internal layer anode tube between the said anode tube wall aperture of row constitute galvanic deposit tube useful length, said galvanic deposit tube useful length is 0.8m-1.2m.
8. a method of using any direct electrodeposition apparatus electrodeposit metals of a kind of said cylindric jet attitude of claim 1 to 7 is characterized in that, comprises the steps:
The first step is electrically connected to power cathode and positive source, energized respectively with said outer cathode tube and said internal layer anode tube;
In second step, metal ion solution gets in the said internal layer anode tube with certain pressure and flow from the centre of said internal layer anode tube under the effect of said liquor pump from bottom to top; Said metal ion solution is ejected into the surface of said outer cathode tube inwall from said anode tube wall aperture; The concentration polarization that has destroyed cathode surface makes metals ion successfully be deposited on cathode surface; And playing the said metal ion solution stirring blended effect that makes, electrodeposition forms the simple substance high purity metal on said outer cathode tube inwall.
CN201210053893.7A 2012-03-02 2012-03-02 Cylindrical jet-state direct electro-deposition device and method for using same to electrically deposite metal Expired - Fee Related CN102560560B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210053893.7A CN102560560B (en) 2012-03-02 2012-03-02 Cylindrical jet-state direct electro-deposition device and method for using same to electrically deposite metal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210053893.7A CN102560560B (en) 2012-03-02 2012-03-02 Cylindrical jet-state direct electro-deposition device and method for using same to electrically deposite metal

Publications (2)

Publication Number Publication Date
CN102560560A true CN102560560A (en) 2012-07-11
CN102560560B CN102560560B (en) 2014-12-17

Family

ID=46407111

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210053893.7A Expired - Fee Related CN102560560B (en) 2012-03-02 2012-03-02 Cylindrical jet-state direct electro-deposition device and method for using same to electrically deposite metal

Country Status (1)

Country Link
CN (1) CN102560560B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103320813A (en) * 2013-06-09 2013-09-25 东江环保股份有限公司 Eddy flow electrowinning tank and application thereof
CN103361673A (en) * 2013-07-24 2013-10-23 励福实业(江门)贵金属有限公司 Titanium cylinder electrolysis machine
WO2014180268A1 (en) * 2013-05-06 2014-11-13 阳谷祥光铜业有限公司 Ultrahigh current density electrolysis or electro-deposition groove
CN104911638A (en) * 2014-09-03 2015-09-16 李新华 Direct electrodeposition equipment anode
CN104911637A (en) * 2014-09-02 2015-09-16 李新华 Direct electrodeposition equipment
CN105347443A (en) * 2015-12-03 2016-02-24 中国农业科学院农业环境与可持续发展研究所 Livestock and poultry breeding wastewater treatment method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60224799A (en) * 1984-04-23 1985-11-09 Mitsubishi Heavy Ind Ltd Treating device for dilute electrolyte solution
CN2047266U (en) * 1989-03-25 1989-11-08 航天工业部第七○三研究所 Equipment for copper or silver electrolytic-recovering from dilute solution
JPH05159038A (en) * 1991-12-10 1993-06-25 Nec Corp Correction system for graphic in stroke input
CN2403792Y (en) * 2000-01-28 2000-11-01 杨聚泰 Apparatus for auxiliary anode spraying zinc liquid electroplating steel conduit inwall
CN1319685A (en) * 2000-01-28 2001-10-31 杨聚泰 Equipment and technology for electroplating steel pipe inner wall by using auxiliary anode and spray-plating zinc solution
CN101023204B (en) * 2004-06-16 2010-08-18 本田技研工业株式会社 Plating apparatus
CN201560239U (en) * 2009-11-09 2010-08-25 广东奥美特集团有限公司 Trace gold electrolysis recovery device

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60224799A (en) * 1984-04-23 1985-11-09 Mitsubishi Heavy Ind Ltd Treating device for dilute electrolyte solution
CN2047266U (en) * 1989-03-25 1989-11-08 航天工业部第七○三研究所 Equipment for copper or silver electrolytic-recovering from dilute solution
JPH05159038A (en) * 1991-12-10 1993-06-25 Nec Corp Correction system for graphic in stroke input
CN2403792Y (en) * 2000-01-28 2000-11-01 杨聚泰 Apparatus for auxiliary anode spraying zinc liquid electroplating steel conduit inwall
CN1319685A (en) * 2000-01-28 2001-10-31 杨聚泰 Equipment and technology for electroplating steel pipe inner wall by using auxiliary anode and spray-plating zinc solution
CN101023204B (en) * 2004-06-16 2010-08-18 本田技研工业株式会社 Plating apparatus
CN201560239U (en) * 2009-11-09 2010-08-25 广东奥美特集团有限公司 Trace gold electrolysis recovery device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014180268A1 (en) * 2013-05-06 2014-11-13 阳谷祥光铜业有限公司 Ultrahigh current density electrolysis or electro-deposition groove
CN103320813A (en) * 2013-06-09 2013-09-25 东江环保股份有限公司 Eddy flow electrowinning tank and application thereof
CN103320813B (en) * 2013-06-09 2015-07-15 东江环保股份有限公司 Eddy flow electrowinning tank and application thereof
CN103361673A (en) * 2013-07-24 2013-10-23 励福实业(江门)贵金属有限公司 Titanium cylinder electrolysis machine
CN103361673B (en) * 2013-07-24 2016-02-17 励福(江门)环保科技股份有限公司 Titanium cylinder electrolysis machine
CN104911637A (en) * 2014-09-02 2015-09-16 李新华 Direct electrodeposition equipment
CN104911637B (en) * 2014-09-02 2017-08-08 李新华 A kind of direct electrodeposition apparatus
CN104911638A (en) * 2014-09-03 2015-09-16 李新华 Direct electrodeposition equipment anode
CN105347443A (en) * 2015-12-03 2016-02-24 中国农业科学院农业环境与可持续发展研究所 Livestock and poultry breeding wastewater treatment method

Also Published As

Publication number Publication date
CN102560560B (en) 2014-12-17

Similar Documents

Publication Publication Date Title
CN102560560B (en) Cylindrical jet-state direct electro-deposition device and method for using same to electrically deposite metal
RU2725871C2 (en) Filter-pressing device for electrodeposition of metals from solutions, consisting of separate elements formed by ion-exchange membranes, forming a plurality of anolyte and catholyte chambers, in which electrodes are connected in series with automatic separation of metal product
CN109112569B (en) Production method for simultaneously preparing manganese metal and manganese dioxide by ion exchange membrane electrolysis method
US2273798A (en) Electrolytic process
KR100947254B1 (en) Cylindrical electrolysis cell reactor
CN102839389B (en) Novel production method of electro-depositing and refining metal chloride by membrane process
CN203200349U (en) Diaphragm electrolytic cell for preparing high-purity cobalt
CN208933494U (en) A kind of electrolysis unit from low concentration cupric cyanide barren solution recycling copper and cyanide
CN102634822A (en) Anode for cylindrical jet-state direct electrodeposition devices
CN109055983B (en) Recovery process and device for electroplating gold-containing wastewater
CN109097792A (en) A kind of electrolysis unit from low concentration cupric cyanide barren solution recycling copper and cyanide
CN103060842B (en) A kind of method preparing electrodeposited cobalt under big flow
CN201024214Y (en) Device for electrochemical dissolution for molybdenite
JP2020056093A (en) Method of producing sulfuric acid solution and electrolytic cell used in the same
CN102828205A (en) Novel metal electro-deposition refining technology
CN202744370U (en) Strengthened micro electrolytic cell
CN101250718A (en) Method for electrodeposition of metallic nickel with nickel sulfide
CN104911637A (en) Direct electrodeposition equipment
CN102051635B (en) Method for producing metal cobalt by adopting high-current density sulfuric acid electrolyte
CN104726900A (en) Mechanism for connecting anode and cathode of electrolysis equipment
Lopez-Cacicedo The Recovery of Metals from Rinse Waters in ‘Chemelec’Electrolytic Cells
CN201981272U (en) Cathode motive seal device for electrorefining of uranium molten salts
CN201826026U (en) Closed type winning cell
CN109811355B (en) Fe2+Three-dimensional electrode reactor with coupled cathode reduction and anode oxidation
CN101906644B (en) Method for recycling copper from copper nitrate waste water

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
PP01 Preservation of patent right

Effective date of registration: 20150407

Granted publication date: 20141217

RINS Preservation of patent right or utility model and its discharge
PD01 Discharge of preservation of patent
PD01 Discharge of preservation of patent

Date of cancellation: 20171007

Granted publication date: 20141217

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141217

Termination date: 20170302