CN107827168B - A method of concentration waste solution of copper electrolysis crystallization production crude nickle sulphate - Google Patents
A method of concentration waste solution of copper electrolysis crystallization production crude nickle sulphate Download PDFInfo
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- CN107827168B CN107827168B CN201711147991.6A CN201711147991A CN107827168B CN 107827168 B CN107827168 B CN 107827168B CN 201711147991 A CN201711147991 A CN 201711147991A CN 107827168 B CN107827168 B CN 107827168B
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- waste solution
- copper electrolysis
- absorbent
- container
- copper
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 55
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 55
- 239000010949 copper Substances 0.000 title claims abstract description 55
- 239000002699 waste material Substances 0.000 title claims abstract description 53
- 238000005868 electrolysis reaction Methods 0.000 title claims abstract description 51
- 238000002425 crystallisation Methods 0.000 title claims abstract description 20
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 230000008025 crystallization Effects 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 18
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 title claims abstract description 15
- 229910021653 sulphate ion Inorganic materials 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 239000007787 solid Substances 0.000 claims abstract description 6
- HIRWGWMTAVZIPF-UHFFFAOYSA-N nickel;sulfuric acid Chemical compound [Ni].OS(O)(=O)=O HIRWGWMTAVZIPF-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000002250 absorbent Substances 0.000 claims description 24
- 230000002745 absorbent Effects 0.000 claims description 24
- 238000001704 evaporation Methods 0.000 claims description 18
- 230000008020 evaporation Effects 0.000 claims description 15
- 239000007921 spray Substances 0.000 claims description 11
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 8
- LGQLOGILCSXPEA-UHFFFAOYSA-L nickel sulfate Chemical compound [Ni+2].[O-]S([O-])(=O)=O LGQLOGILCSXPEA-UHFFFAOYSA-L 0.000 claims description 6
- 229910000363 nickel(II) sulfate Inorganic materials 0.000 claims description 6
- 229920006395 saturated elastomer Polymers 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 4
- 230000002269 spontaneous effect Effects 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract description 14
- 239000006096 absorbing agent Substances 0.000 abstract description 7
- 239000002253 acid Substances 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 238000000605 extraction Methods 0.000 abstract description 3
- 239000003595 mist Substances 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 53
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 14
- 229910052759 nickel Inorganic materials 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 5
- 239000003792 electrolyte Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 4
- 238000005485 electric heating Methods 0.000 description 2
- DLYUQMMRRRQYAE-UHFFFAOYSA-N tetraphosphorus decaoxide Chemical compound O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 239000010808 liquid waste Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 150000004965 peroxy acids Chemical class 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- -1 uses crystallisation Chemical compound 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G53/00—Compounds of nickel
- C01G53/10—Sulfates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/0082—Regulation; Control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/30—Accessories for evaporators ; Constructional details thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D9/00—Crystallisation
- B01D9/0018—Evaporation of components of the mixture to be separated
- B01D9/0031—Evaporation of components of the mixture to be separated by heating
Abstract
The invention discloses a kind of method of concentration waste solution of copper electrolysis crystallization production crude nickle sulphate, extraction process are as follows: the waste solution of copper electrolysis being concentrated and moisture absorber will be needed to be contained in two containers respectively；Increase the contact area of water vapour and liquid level with proper method；It is two container headspaces are closed and be interconnected；Take the air in ullage space away with vacuum system；The temperature that waste solution of copper electrolysis is properly increased in a manner of heating, increases vapour pressure, and moisture forms steam with faster speed；Moisture absorber absorbs the water vapour in space with faster speed；Solid sulphuric acid nickel is crystallized out when waste solution of copper electrolysis is concentrated into a certain degree.The entire production process of the present invention can realize closed operation, and no acid mist generates, and environment is good；Energy consumption is controllable, and production cost is low.
Description
Technical field
A method of concentration waste solution of copper electrolysis crystallization production crude nickle sulphate is related to a kind of method for concentration of aqueous solution.
Background technique
At present, the method for nickel mainly uses crystallisation, extraction and ion-exchange in purification removing copper electrolyte.State
Interior majority producer uses crystallisation output crude nickle sulphate, mainly has electric heating evaporation method, freeze crystallization, steam indirect heating dense
Contracting, straight fiery concentration method, evaporator with submerged combustion production crude nickle sulphate etc..There is electric heating evaporation method high degree of automation, nickel removal to imitate
The advantages that rate is high, but power consumption is high, and ability is low, and environmental protection investments and operating cost are higher, is restricted in application.Freeze crystallization
Due to needing the factors such as equipment is more, take up a large area, nickel removal low efficiency not to be widely adopted always.Straight fire concentration method, which has, to be set
The advantages that standby simple, nickel direct yield is high, was once widely used in small-sized copper smelting plant, but its burning is not closed, sour with evaporation equipment
It volatilizees the disadvantages of more, energy consumption is high, environmental pollution is serious, severe operational environment, large labor intensity.The concentration of steam indirect heating uses
Steam indirect heating evaporates solution, due to solution containing acid high, seriously corroded, to being evaporated in vacuo, material is more demanding, using warding off
Porcelain reaction kettle has the characteristics such as high temperature resistant, peracid, but its heat transfer efficiency is low, and percent crystallization in massecuite is low, and nickel direct yield is relatively low, evaporation rate
Slowly, the factory for being relatively suitble to treating capacity small.
Summary of the invention
The purpose of the present invention is to above-mentioned problem, provide that a kind of concentrate solution power consumption is low, environment is good
The method that good, good product quality, concentration copper electrolyte at low cost extract nickel.
What the purpose of the present invention was achieved through the following technical solutions: a kind of concentration waste solution of copper electrolysis crystallization production crude nickle sulphate
Method, specifically includes the following steps:
(1) absorbent for absorbing moisture and the waste solution of copper electrolysis of concentration to be evaporated are contained in respectively in two containers, two
Container top is connected, and two containers is made to form the same confined space of inverted U shape, and the connectivity part of two container tops is shared sky
Between be used as steam flow channel, at this with vacuumize interface and connect；
(2) confined space is vacuumized, takes the air in confined space away, vacuum degree is that 10-101 KPa stops
It only vacuumizes, the saturated vapor pressure in two containers is made difference occur, waste solution of copper electrolysis starts to evaporate, and the vapor of evaporation is spontaneous
It is shifted by steam flow channel to the small container equipped with absorbent of vapour pressure, absorbent absorbs water vapour；
(3) absorbent constantly absorbs the vapor that waste solution of copper electrolysis evaporates, and waste solution of copper electrolysis is concentrated into certain journey
Solid sulphuric acid nickel is started crystallizing out when spending, and nickel sulfate crystallization is obtained by filtration.
The absorbent is the substance that the concentrated sulfuric acid or other vapour pressures are less than upper space vapour pressure.
Waste solution of copper electrolysis of the invention changes the temperature of waste solution of copper electrolysis in a manner of heating, and makes to hold equipped with waste solution of copper electrolysis
Vapour pressure in device increases.
After the present invention vacuumizes stopping, being pumped by two spray cycles and keep the vacuum degree in confined space constant, wherein one
Spray cycle pump, which is mounted in, to be filled between the upper vessel portion of waste solution of copper electrolysis and lower part, by waste solution of copper electrolysis constantly from the container
Portion carries out sprinkling and accelerates evaporation；Another spray cycle pump is mounted in filling between the upper vessel portion of absorbent and lower part, by absorbent
The vapor that sprinkling absorbs waste solution of copper electrolysis evaporation is constantly carried out from the upper vessel portion.
The bottom of the container equipped with absorbent and the container equipped with waste solution of copper electrolysis is respectively equipped with corresponding storage tank,
Storage tank is communicated with the outlet of corresponding container, while the storage tank is communicated by circulating pump with the entrance of corresponding container.
The beneficial effects of the present invention are:
1. the present invention is pressed with difference according to the saturated vapor of different solutions, the water in solution can be as a vapor from steaming
The big solution of vapour pressure shares two container headspaces from the principle for being sent to the small solution transfer of vapour pressure, makes above two containers altogether
The vapor in the flow of water vapor channel for using the same space to evaporate as waste liquid, evaporation can flow freely；Gas in confined space
Press 10-101 KPa, it can be normal pressure or have certain vacuum degree, the saturated vapor of two media is pressed with difference in container, makes water
Part is freely shifted from the big substance of vapour pressure to the small substance of vapour pressure；The present invention passes through pressure, the temperature in the control communal space
The surface area of degree, electrolyte and moisture absorption agent, control moisture content transmits between solution and moisture absorption agent as a vapor, whole
A production process realizes closed operation, and no acid mist generates, and environment is good；Energy consumption is controllable, and production cost is low；Production system can be with
Increase multiple containers according to the requirement of production capacity, realizes that space locating for multiple water vapour evaporations and absorption interface is shared.
By installing spray cycle pump respectively to two containers, the form for making solution and absorbent sprinkle water is presented the present invention
Raindrop shape, is circulated, and is increased the surface area of waste solution of copper electrolysis by circulation sprinkling waste solution of copper electrolysis, is made in solution
Water vapour is uniform, is rapidly performed by evaporation, and reinforced solution flow rate strengthens steam flowing velocity；Increased by sprinkling absorbent
The big contact area with the vapor of waste solution of copper electrolysis evaporation, accelerates absorption rate.
The present invention is by installing the independent circulatory system: i.e. storage tank and circulating pump to waste solution of copper electrolysis and moisture absorber；
It is continuously replenished or is taken away, the water transport for evaporating waste solution of copper electrolysis is carried out continuously, and whole system realizes continuous processing
Purpose.Meanwhile waste solution of copper electrolysis crystallizes out solid sulphuric acid nickel when being concentrated into a certain degree, is taken out of by its corresponding circulatory system
Nickel sulfate crystallization is obtained by filtration after container.
Detailed description of the invention
The structural schematic diagram of Fig. 1 embodiment of the present invention.
In figure: 1. vacuumize interface, 2. communal spaces, 3. waste solution of copper electrolysis, 4. absorbents, 5. spray solution circulating pumps,
6. absorbing liquid spray cycle pump, 7. solution circulation pumps, 8. absorbing liquid circulating pumps, 9. solution storage troughs, 10. absorbing liquid storage tanks, 11. molten
Liquid water level detector, 12. absorbing liquid water level detectors.
Specific embodiment
A method of concentration waste solution of copper electrolysis crystallization production crude nickle sulphate, extraction process is under normal temperature conditions, to incite somebody to action
Waste solution of copper electrolysis and moisture absorber agent are contained in respectively in two containers, and two reservoirs are in same confined air
Between inverted u-shaped shape, upper space is shared, and the communal spaces 2 are used as flow of water vapor channel above two containers, and the communal space 2 connects
Be connected to and vacuumize interface 1, a sprinkling system is installed between the top and the bottom of two containers respectively, it may be assumed that spray cycle pump, the pump it is defeated
Enter end to communicate with the lower part of corresponding container, the output end of the pump installs sprinkler head, and sprinkler head is located at the top in corresponding container, makes
Two solution are spilt with raindrop shape point circulate respectively.Take the air in ullage space, copper electricity away by way of vacuumizing
Water in liquid waste solution is shifted since be sent to the small absorbent of vapour pressure from the big waste liquid of vapour pressure in the form of water vapour, is passed through
The moisture absorber of sprinkling absorbs, and vapour pressure reduces in space, and the water in waste solution of copper electrolysis accelerates evaporation, and water vapour continues to flow to
Moisture absorber is absorbed, and waste solution of copper electrolysis crystallizes out nickel sulfate after being concentrated by evaporation to nickel sulfate solubility supersaturation, is filtered
It is crystallized to nickel sulfate.
The above-mentioned temperature that waste solution of copper electrolysis can be properly increased by way of heating, from 15 DEG C to 180 DEG C, temperature is higher,
The vapour pressure of waste solution of copper electrolysis is bigger, and moisture content transfer velocity is faster.Or keep the air pressure in the communal space 2 smaller, waste solution of copper electrolysis
Evaporation rate it is faster.
The absorbent that the present invention uses is the substance of the small vapour pressure of side space thereon of vapour pressure, can be liquid, such as dense
Sulfuric acid is also possible to solid, such as calcium oxide, phosphorus pentoxide.Raindrop shape is presented in the form sprinkled water in absorbent to be followed
Water vapour in space is absorbed with faster speed when circulation is dynamic.
Above-mentioned waste solution of copper electrolysis and moisture absorber can install the independent circulatory system, it may be assumed that respective circulating pump and
Storage tank, is constantly added to corresponding container for the liquid in storage tank by circulating pump or the liquid of taking away in corresponding container is discharged into pair
In the storage tank answered, the transfer continuities of the moisture in whole container is made to carry out the purpose, it can be achieved that continuous processing；Work as waste solution of copper electrolysis
Solid sulphuric acid nickel is crystallized out when being concentrated into certain density level, and container is taken out of by the corresponding circulatory system, sulfuric acid is obtained by filtration
Nickel crystallization.
In order to preferably control installation detecting devices perception separately detects density case and the moisture absorption agent of electrolyte
Aqueous situation, automatic monitoring and processing are realized, when density of electrolyte and moisture absorption agent water content reach moisture content transfer
It is replaced automatically when critical point.
When being pressed with difference with the saturated vapor that the principle of the present invention is different solutions, in two containers not because of saturated vapor pressure
Together, the moisture in solution can be realized and be produced as a vapor from the big solution of vapour pressure from the small solution transfer of vapour pressure is sent to
Object is crude nickle sulphate crystal purpose out.
Embodiment 1
By the waste solution of copper electrolysis of cupric 0.3g/l, 10m3 containing sour 280g/l, nickeliferous 35g/l be passed through it is as shown in Figure 1 to
Liquid zone domain is evaporated, absorbent uses 98% concentrated sulfuric acid of 10m3, and suction reaches -70kPa under normal temperature conditions, and starting is each
Self-corresponding circulating pump and spray cycle pump, keep vacuum of space constant, after 4 hours, the liquor capacity in liquid zone domain to be evaporated
It reduces to 3 m3, absorbent volume reaches 17 m3, corresponding two circulating pump of each container out of service, by liquid after the evaporation of 3 m3
It is filtered, obtains 2.1 m3 of acid solution containing sour 930g/l, nickeliferous 3g/l, crude nickle sulphate crystallizes 1.5 tons.The concentrated sulfuric acid absorbs moisture
Concentration is down to 75% afterwards, is applied to production as production reagent.
Claims (5)
1. a kind of method of concentration waste solution of copper electrolysis crystallization production crude nickle sulphate, it is characterised in that: specifically includes the following steps:
(1) absorbent for absorbing moisture and the waste solution of copper electrolysis of concentration to be evaporated are contained in respectively in two containers, two containers
Top is connected, and two containers is made to form the confined space of inverted U shape, and the connectivity part of two container tops is the communal space as steam
Flow channel, at this with vacuumize interface and connect；
(2) confined space is vacuumized, takes the air in confined space away, vacuum degree is that 10-101 KPa stops taking out
Vacuum makes the saturated vapor pressure in two containers difference occur, and waste solution of copper electrolysis starts to evaporate, and the vapor of evaporation is spontaneous to be passed through
Steam flow channel is shifted to the small container equipped with absorbent of vapour pressure, and absorbent absorbs water vapour；
(3) absorbent constantly absorbs the vapor that waste solution of copper electrolysis evaporates, when waste solution of copper electrolysis is concentrated into a certain degree
Existing solid sulphuric acid nickel is started crystallizing out, nickel sulfate crystallization is finally obtained by filtration.
2. a kind of method of concentration waste solution of copper electrolysis crystallization production crude nickle sulphate as described in claim 1, it is characterised in that: institute
Stating absorbent is the concentrated sulfuric acid.
3. a kind of method of concentration waste solution of copper electrolysis crystallization production crude nickle sulphate as described in claim 1, it is characterised in that: copper
Electrolysis waste solution increases the vapour pressure in waste solution of copper electrolysis container in a manner of heating.
4. a kind of method of concentration waste solution of copper electrolysis crystallization production crude nickle sulphate as described in claim 1, it is characterised in that: take out
It after vacuum stops, being pumped by two spray cycles and keeps the vacuum degree in confined space constant, wherein spray cycle pump, which is mounted in, to be contained
Have between the upper vessel portion of waste solution of copper electrolysis and lower part, waste solution of copper electrolysis is constantly subjected to sprinkling from the upper vessel portion and accelerates to steam
Hair；Another spray cycle pump, which is mounted in, to be filled between the upper vessel portion of absorbent and lower part, and absorbent is continuous from the upper vessel portion
Carry out the vapor that sprinkling absorbs waste solution of copper electrolysis evaporation.
5. a kind of method of concentration waste solution of copper electrolysis crystallization production crude nickle sulphate as described in claim 1, it is characterised in that: dress
There are the container of absorbent and the container bottom equipped with waste solution of copper electrolysis to be respectively equipped with corresponding storage tank, storage tank and corresponding container
Outlet communicates, while the storage tank is communicated by circulating pump with the entrance of corresponding container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711147991.6A CN107827168B (en) | 2017-11-17 | 2017-11-17 | A method of concentration waste solution of copper electrolysis crystallization production crude nickle sulphate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711147991.6A CN107827168B (en) | 2017-11-17 | 2017-11-17 | A method of concentration waste solution of copper electrolysis crystallization production crude nickle sulphate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107827168A CN107827168A (en) | 2018-03-23 |
| CN107827168B true CN107827168B (en) | 2019-03-08 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101049979A (en) * | 2007-05-16 | 2007-10-10 | 梅州市金雁铜业公司 | Method for extracting nickel sulfate from waste solution of copper electrolysis |
| CN102557154A (en) * | 2011-12-23 | 2012-07-11 | 江门市芳源环境科技开发有限公司 | Negative pressure evaporation and step-by-step feeding method of nickel sulfate solution |
| CN102627333A (en) * | 2012-04-24 | 2012-08-08 | 中南大学 | Method for refined nickel sulfate |
| JP2014159633A (en) * | 2014-02-03 | 2014-09-04 | Pan Pacific Copper Co Ltd | Method for recovering nickel from copper electrolyte |
| CN104229906A (en) * | 2014-09-28 | 2014-12-24 | 梅州环保设备有限公司 | Method and equipment for preparing electroplating-grade nickel sulfate from nickel-containing wastewater produced in surface treatment process |
| CN204058135U (en) * | 2014-09-28 | 2014-12-31 | 梅州环保设备有限公司 | Nickel-containing waste water is utilized to prepare the equipment of plating level single nickel salt |
| JP2016029017A (en) * | 2015-10-29 | 2016-03-03 | 住友金属鉱山株式会社 | Facility and method for crystallizing nickel sulfate |
-
2017
- 2017-11-17 CN CN201711147991.6A patent/CN107827168B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101049979A (en) * | 2007-05-16 | 2007-10-10 | 梅州市金雁铜业公司 | Method for extracting nickel sulfate from waste solution of copper electrolysis |
| CN102557154A (en) * | 2011-12-23 | 2012-07-11 | 江门市芳源环境科技开发有限公司 | Negative pressure evaporation and step-by-step feeding method of nickel sulfate solution |
| CN102627333A (en) * | 2012-04-24 | 2012-08-08 | 中南大学 | Method for refined nickel sulfate |
| JP2014159633A (en) * | 2014-02-03 | 2014-09-04 | Pan Pacific Copper Co Ltd | Method for recovering nickel from copper electrolyte |
| CN104229906A (en) * | 2014-09-28 | 2014-12-24 | 梅州环保设备有限公司 | Method and equipment for preparing electroplating-grade nickel sulfate from nickel-containing wastewater produced in surface treatment process |
| CN204058135U (en) * | 2014-09-28 | 2014-12-31 | 梅州环保设备有限公司 | Nickel-containing waste water is utilized to prepare the equipment of plating level single nickel salt |
| JP2016029017A (en) * | 2015-10-29 | 2016-03-03 | 住友金属鉱山株式会社 | Facility and method for crystallizing nickel sulfate |
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| CN107827168A (en) | 2018-03-23 |
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Effective date of registration: 20240315 Address after: 737199 No. 2 Jianshe Road, Jinchuan District, Jinchang City, Gansu Province (east of Beijing Road, west of Heya Road, south of Guiyang Road) Patentee after: Jinchuan Group Copper Gui Co.,Ltd. Country or region after: China Address before: 737103 No. 98, Jinchuan Road, Jinchang, Gansu Patentee before: JINCHUAN GROUP Co.,Ltd. Country or region before: China |