CN106191436A - Improve the copper extraction process of copper recovery - Google Patents
Improve the copper extraction process of copper recovery Download PDFInfo
- Publication number
- CN106191436A CN106191436A CN201610834578.6A CN201610834578A CN106191436A CN 106191436 A CN106191436 A CN 106191436A CN 201610834578 A CN201610834578 A CN 201610834578A CN 106191436 A CN106191436 A CN 106191436A
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- extraction
- copper
- storage tank
- aqueous phase
- extraction equipment
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/02—Apparatus therefor
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B15/00—Obtaining copper
- C22B15/0063—Hydrometallurgy
- C22B15/0084—Treating solutions
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/26—Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention discloses a kind of copper extraction process improving copper recovery, the copper extraction system used in technique includes two-stage extraction cells, back extraction equipment and intermediate storage tank, extraction cells includes extraction equipment and storage tank, extraction equipment connects input duct and Drainage pipe, and intermediate storage tank connects with the Drainage pipe of one-level extraction equipment and the input duct of two grades of extraction equipments respectively；Extraction equipment goes out pipe by aqueous phase inlet pipe with aqueous phase with storage tank and connects one circulation of formation；It is joined together to form a circulation by pipeline between extraction equipment and back extraction equipment；This extracting system is utilized to carry out copper extraction.The copper extraction process system structure used is simple, technological process succinct, processing ease, copper recovery are high, low cost.The extraction process of the present invention reduces raffinate copper concentration, adds the ability of organic extractant phase copper, and the ability simultaneously maintaining organic extractant phase ferrum is almost unchanged, improves the copper recovery of extraction process and the production efficiency of extraction equipment.
Description
Technical field
The invention belongs to wet type copper smelting technical field, the technique relating to the extraction of a kind of copper, it is specifically related to a kind of copper that improves and returns
The copper extraction process of yield.
Background technology
Along with the copper hydrometallurgical processes (leaching-Extraction electrodeposition) Successful utilization in world mine, metal ion is molten
Agent abstraction technique has obtained unprecedented development, and its application has spread over the fields such as waste water process and waste metal recovery.Extracted
The metal species taken gets more and more, and the composition of extraction feed liquid becomes increasingly complex, and in feed liquid, concentration of metal ions scope the most constantly expands
Exhibition.From the point of view of the solvent extraction of copper, in the leachate of low-grade mine, copper ion concentration only has 0.2-0.5g/l, but prints
In the etching waste liquor of circuit board factory (PCB factory), copper ion concentration can be up to 120-160g/l.Feed liquid is different, the extraction of employing
Technique is the most different.
Traditional two-stage extraction one-level stripping process (2E+1S) is as shown in Fig. 3 in Figure of description: extraction feed liquid is the most not
Disconnectedly extracting through E1 and E2 two-stage, copper ion therein is extracted in load organic phases.Back extraction lean solution continuously flows into
Back extraction equipment S, the copper ion in load organic phases is again by back extraction to back extraction rich solution, and organic facies is regenerated simultaneously.Organic facies
The ratio of flow and feed liquid flow is the flow-rate ratio of extraction section.When the copper ion concentration extracted in feed liquid is the highest, by organic facies
Copper max load limit, the copper ion in feed liquid could be all extracted in organic facies by the flow only increasing organic facies.
If the copper concentration of feed liquid is 120g/l, the copper max load of organic facies is 16g/l, then the flow-rate ratio of extraction section have to be larger than
7.5 are only possible to extract totally the copper in feed liquid.But, in industrialized production, organic facies and aqueous phase connect the most by volume
Nearly 1:1 mixing (mixing chamber is compared close to 1), so can not only obtain best mixed effect, also allows for controlling mutually continuously simultaneously,
Obtain best split-phase effect.When extraction section flow-rate ratio is higher, extraction process is accomplished by aqueous-phase reflux to maintain mixing chamber phase
Ratio is near 1.
The aqueous phase flowed out from E1 is returned a part to extracting in feed liquid to increase by the 2E+1S technique of extraction section band aqueous-phase reflux
Add the aqueous phase flow flowing into extraction equipment E1, thus reduce the flow-rate ratio of E1.The flow of available valve regulated backflow aqueous phase, with control
In E1 processed, mixing chamber is compared close to 1.Aqueous-phase reflux is also applied for the recirculation water phase flow rate of E2, E2 also can use valve regulated.Extraction
The copper ion that the drawback of section aqueous-phase reflux is in feed liquid is diluted, and hydrogen ion concentration is but increasing, and therefore reduces organic facies
Extraction copper ability, the copper ion concentration in load organic phases can reduce, and the load factor of organic facies can decline.Work due to stripping section
Skill condition is not changed in, and back extraction ratio will not change, thus causes the net copper transfer amount of technique to decline, and the copper of extracting system returns
Yield reduces.
What extraction equipment was conventional has mixer-settler and centrifugal extractor etc..Existing mixer-settler is flat, as said
In bright book accompanying drawing shown in Fig. 4, aqueous phase liquid level in clarifying chamber is minimum can only drop to D point (for aqueous phase below dotted line in figure), D point
Following aqueous phase can not be released, and has a lot of aqueous phase not to be discharged in clarifying chamber.
Summary of the invention
It is an object of the invention to provide for problem above that a kind of technological process is succinct, processing ease, copper recovery are high
Copper extraction process.
The technical scheme is that a kind of copper extraction process improving copper recovery, in technique
The copper extraction system used includes two-stage extraction cells, back extraction equipment and intermediate storage tank, and described extraction cells includes extraction equipment
And storage tank, described extraction equipment connect have input duct and Drainage pipe, described intermediate storage tank respectively with one-level extraction equipment
The input duct connection of Drainage pipe and two grades of extraction equipments；Extraction equipment and described storage tank go out pipe by aqueous phase inlet pipe and aqueous phase
Connection forms a circulation, and the aqueous phase in extraction equipment is entered in storage tank by aqueous phase inlet pipe, and the aqueous phase in storage tank passes through aqueous phase
Go out pipe to return in extraction equipment；It is joined together to form by pipeline between extraction equipment and the back extraction equipment of two-stage extraction cells
One circulation；Described input duct, Drainage pipe, aqueous phase inlet pipe and aqueous phase go out to be mounted on valve on pipe；
Copper extraction process comprises the steps:
1) copper is extracted feed liquid dilute with water 1～5 times, fills intermediate storage tank；
2) in the extraction equipment of two-stage extraction cells, the extraction feed liquid after organic facies, water or dilution is loaded, in back extraction
Equipment loads organic facies and back extraction lean solution；
3) open the valve on the input duct of two-stage extraction cells and aqueous phase inlet pipe, close Drainage pipe and aqueous phase goes out pipe
On valve；
4) run extracting system, control the flow in two input duct: organic facies flow: the lean flow quantity of back extraction is 1:1:
1；
5) when two storage tanks of two-stage extraction cells are filled, close the valve in two input duct, open two water
Go out the valve on pipe mutually, control two aqueous phases and go out the flow in pipe: organic facies flow: the lean flow quantity of back extraction is 1:1:1, continuation is transported
Row extracting system；
6) when the copper ion concentration in the storage tank of two grades of extraction cells reaches emission request, close on two aqueous phase inlet pipes
Valve, open valve on two Drainage pipes and discharge qualified raffinate, when storage tank empties soon, closes two aqueous phases and go out to manage
With the valve on Drainage pipe, open the valve on two input duct and aqueous phase inlet pipe；
7) step 4 is repeated) to 6) until having processed pending extraction feed liquid.
In technique scheme, described extraction equipment is mixer-settler, described mixer-settler by the first baffle plate,
Two baffle plates are divided into mixing chamber, clarifying chamber and aqueous compartment successively, and the bottom of described clarifying chamber and aqueous compartment is near the one of mixing chamber
The side of laterally closer aqueous compartment extends one inclined-plane of formation gradually downward；The upper end of described first baffle plate is A point, and lower end is B
Point, the upper end of described second baffle is C point, and lower end is D point, and described D point is less than described B point, and higher than the outlet of aqueous compartment.
In technique scheme, the volume of the storage tank of described two-stage extraction cells is equal, the volume of described intermediate storage tank
Tank volume and clarifying chamber's volume half sum of extraction equipment equal to extraction cells.
Described step 1) in copper extraction feed liquid dilute with water 1 times after fill intermediate storage tank.
Described step 2) in two-stage extraction cells extraction equipment in load organic facies: water or dilution after extraction material
The volume ratio of liquid is 1:1～2, and the organic facies loaded in back extraction equipment and the volume ratio of back extraction lean solution are 1:1～2.
The invention has the beneficial effects as follows: the copper extraction process system structure of use is simple, technological process succinct, operation is held
Easily, copper recovery height, low cost.The extraction process of the present invention reduces raffinate copper concentration, adds organic extractant phase copper
Ability, the ability simultaneously maintaining organic extractant phase ferrum is almost unchanged, improves copper recovery and the extraction equipment of extraction process
Production efficiency.Using present invention process, relative to tradition two-stage extraction one-level stripping process, copper recovery can improve and exceedes
10%, the response rate improves clearly, and effect is notable, has saved cost, has added benefit.
Accompanying drawing explanation
Fig. 1 is the copper extraction system structural representation used in the present invention.
Fig. 2 is the structural representation of the extraction equipment mixer-settler in Fig. 1.
Detailed description of the invention
Embodiment one, structure copper extraction system
As shown in Figure 1, 2, the copper extraction system used in the present invention is mainly by two-stage extraction cells 1, intermediate storage tank 9 and anti-
Extraction equipment 2 forms.Extraction cells 1 is made up of extraction equipment 3 and storage tank 4, and the extraction equipment 3 of two-stage extraction cells 1 and back extraction set
It is joined together to form a circulation by pipeline between standby 2.Extraction equipment 3 connects input duct 5 and Drainage pipe 6, extraction
Taking equipment 3 goes out pipe 8 by aqueous phase inlet pipe 7 with aqueous phase with storage tank 4 and connects one circulation of formation, and the aqueous phase in extraction equipment 3 passes through
Aqueous phase inlet pipe 7 enters in storage tank 4, and the aqueous phase in storage tank 4 goes out pipe 8 by aqueous phase and returns in extraction equipment 3.Input duct 5, discharge opeing
Pipeline 6, aqueous phase inlet pipe 7 and aqueous phase go out and are mounted on valve on pipe 8.Intermediate storage tank 9 respectively with the discharging tube of one-level extraction equipment 3
Road 6 connects with the input duct 5 of two grades of extraction equipments 3.The volume of the storage tank 4 of two-stage extraction cells 1 is equal, described intermediate storage tank
The volume of 9 is equal to storage tank 4 volume of extraction cells 1 and the clarifying chamber 3d volume half sum of extraction equipment 3.
Extraction equipment 3 is mixer-settler, and mixer-settler is divided into mixing chamber successively by the first baffle plate 3a, second baffle 3b
3c, clarifying chamber 3d and aqueous compartment 3e, the bottom 3f of clarifying chamber 3d and aqueous compartment 3e is from the laterally closer water near mixing chamber 3c
The side of phase room 3e extends one inclined-plane of formation gradually downward；The upper end of the first baffle plate 3a is A point, and lower end is B point, second baffle
The upper end of 3b is C point, and lower end is D point, and D point is less than B point, and higher than the outlet 3g of aqueous compartment 3e.Aqueous phase in clarifying chamber 3d
Liquid level is minimum can only drop to D point, and the following aqueous phase of D point can not be released, and clarifying chamber and aqueous compartment flat is changed into by original
Wedged bottom, greatly reduces the aqueous phase volume can not being discharged in clarifying chamber, improves the operational efficiency of extraction process.
This extracting system is applicable to only process the feed liquid of a kind of concentration.First in intermediate storage tank, fill the feed liquid after dilution
(extension rate is 1-5 times).Then opening the valve in input duct, equipment of opening runs, organic facies two-stage extraction equipment,
Back extraction equipment room circulates, and the feed liquid after feed liquid and dilution respectively enters in the extraction equipment of two-stage extraction cells, enters back into
In storage tank, closing the valve in input duct when storage tank is filled, the aqueous phase in two-stage extraction cells is at extraction equipment and storage tank
In circulate.When the copper ion concentration in the extraction cells storage tank of the second level reaches emission request, the copper in intermediate storage tank from
Son also reaches concentration of emission, now closes the valve on storage tank aqueous phase inlet pipe, opens the valve row on extraction equipment Drainage pipe
Going out qualified raffinate, intermediate storage tank is filled simultaneously, when two-stage extraction cells storage tank empties soon, closes aqueous phase and goes out the valve on pipe
Door, the valve opened in input duct, be again introduced into feed liquid, carry out new processing cycle, and so circulation has i.e. reached even
Continuous production.
Embodiment two, operation copper extraction process
Use the copper extraction system in embodiment one, run copper extraction process, operate in accordance with the following steps:
1) copper extracts feed liquid dilute with water 1 times (select extension rate according to actual needs, 1～5 times, belong to existing
Have technology, do not repeat), fill intermediate storage tank 9；
2) loading volume ratio in the extraction equipment 3 of two-stage extraction cells 1 is 1:1 (1:1～2, for prior art)
Organic facies and water (or dilution after extraction feed liquid), load in back extraction equipment 2 volume ratio be 1:1 (1:1～2, for
Prior art) organic facies and back extraction lean solution；Comprising copper extractant, modification agent, diluent in organic facies, described modification agent is ester
One or more in class, phenols, alcohols, ethers, described diluent is C13～16 isoparaffins (hydrotreated kerosene, sulfonated coal
Oil).
3) open the valve on the input duct 5 of two-stage extraction cells 1 and aqueous phase inlet pipe 7, close Drainage pipe 6 and aqueous phase
Go out the valve on pipe 8；
4) run extracting system, control the flow in two input duct 5: organic facies flow: the lean flow quantity of back extraction is 1:
1:1；
5) when two storage tanks 4 of two-stage extraction cells 1 are filled, close the valve in two input duct 5, open two
Aqueous phase goes out the valve on pipe 8, controls two aqueous phases and goes out the flow in pipe 8: organic facies flow: the lean flow quantity of back extraction is 1:1:1, continues
Reforwarding row extracting system；
6) when the copper ion concentration in the storage tank 4 of two grades of extraction cells 1 reaches emission request, two aqueous phase inlet pipes are closed
Valve on 7, opens valve on two Drainage pipes 6 and discharges qualified raffinate, when raffinate fast drained time, close two water
Go out the valve on pipe 8 and Drainage pipe 6 mutually, open the valve on two input duct 5 and aqueous phase inlet pipe 7；
7) step 4 is repeated) to 6) until having processed pending extraction feed liquid.
In present invention process, a certain amount of extraction feed liquid first cycling extraction in one-level extraction cells, when copper ion is dense
Just entering two grades of extraction cells when degree reaches setting value, further cycling extraction in two grades of extraction cells, raffinate is by discharge opeing
Pipeline is discharged；The newest extraction feed liquid enters one-level extraction cells and starts new extraction cycle, and feed liquid is warp in extraction cells
Repeatedly after circular treatment, copper ion concentration reaches setting value, just completes to process；Enter back into new extraction feed liquid to process, so
Circulation produces continuously.Present invention process reduces the copper ion concentration in raffinate, hence it is evident that improve copper recovery.
Embodiment three, carry out copper extraction
According to the copper extraction process extracting copper in embodiment two, carry out 6 groups of experiments, use present invention process and traditional
Two-stage extraction one-level stripping process contrast, knowable to experimental result, present invention process compares traditional handicraft, and copper recovery can carry
High several percentage points, the highest can improve more than 10 percentage points, and effect is the most notable.
Experiment 1
Organic facies: 30%Mextral5640H
Extraction feed liquid: 15g/l Cu, 10g/l Fe, pH=1.5 (formulated by copper sulfate and iron sulfate, sulphuric acid and
NaOH adjusts pH value)
Electrodeposition lean solution: 30g/l Cu, 190g/l sulphuric acid (formulated by sulphuric acid and copper sulfate)
Experiment 2
Organic facies: 30%Mextral5640H
Extraction feed liquid: 30g/l Cu, 10g/l Fe, pH=1.5 (formulated by copper sulfate and iron sulfate, sulphuric acid and
NaOH adjusts pH value)
Electrodeposition lean solution: 30g/l Cu, 190g/l sulphuric acid (formulated by sulphuric acid and copper sulfate)
Experiment 3
Organic facies: 30%Mextral5640H
High-copper feed liquid: 30g/l Cu, 10g/l Fe, pH=1.5 (formulated by copper chloride and iron sulfate, hydrochloric acid and
NaOH adjusts pH value)
Electrodeposition lean solution: 30g/l Cu, 190g/l sulphuric acid (formulated by sulphuric acid and copper sulfate)
Experiment 4
Organic facies: 25%Mextral5640H
Extraction feed liquid: 50g/l Cu, 10g/l Fe, pH=1.5 (formulated by copper chloride and iron sulfate, hydrochloric acid and hydrogen
Sodium oxide adjusts pH value)
Electrodeposition lean solution: 30g/l Cu, 190g/l sulphuric acid (formulated by sulphuric acid and copper sulfate)
Experiment 5
Organic facies: 25%Mextral5640H
Extraction feed liquid: 38g/l Cu, 10g/l Fe, pH=1.5 (formulated by copper sulfate and iron sulfate, sulphuric acid and hydrogen
Sodium oxide adjusts pH value)
Electrodeposition lean solution: 30g/l Cu, 190g/l sulphuric acid (formulated by sulphuric acid and copper sulfate)
Experiment 6
Organic facies: 25%Mextral5640H
Extraction feed liquid: 34g/l Cu, 10g/l Fe, 71g/l Cl, pH=1.5 (are joined by copper chloride, sodium chloride and iron sulfate
System forms, and hydrochloric acid and NaOH adjust pH value)
Electrodeposition lean solution: 30g/l Cu, 190g/l sulphuric acid (formulated by sulphuric acid and copper sulfate)
Experiment 7
Organic facies: 26%Mextral5640H
Extraction feed liquid: 35g/l Cu, 10g/l Fe, pH=1.5 (formulated by copper chloride and iron sulfate, hydrochloric acid and
NaOH adjusts pH value)
Electrodeposition lean solution: 30g/l Cu, 190g/l sulphuric acid (formulated by sulphuric acid and copper sulfate)
Claims (5)
1. the copper extraction process improving copper recovery, it is characterised in that the copper extraction system used in technique includes two-stage
Extraction cells (1), back extraction equipment (2) and intermediate storage tank (9), described extraction cells (1) includes extraction equipment (3) and storage tank (4),
Described extraction equipment (3) connects input duct (5) and Drainage pipe (6), and described intermediate storage tank (9) sets with one-level extraction respectively
The Drainage pipe (6) of standby (3) connects with the input duct (5) of two grades of extraction equipments (3)；Extraction equipment (3) and described storage tank (4)
Going out pipe (8) by aqueous phase inlet pipe (7) with aqueous phase and connect one circulation of formation, the aqueous phase in extraction equipment (3) passes through aqueous phase inlet pipe
(7) entering in storage tank (4), the aqueous phase in storage tank (4) goes out pipe (8) by aqueous phase and returns in extraction equipment (3)；Two-stage extraction cells
(1) it is joined together to form a circulation by pipeline between extraction equipment (3) and back extraction equipment (2)；Described input duct
(5), Drainage pipe (6), aqueous phase inlet pipe (7) and aqueous phase go out pipe (8) on be mounted on valve；
Copper extraction process comprises the steps:
1) copper is extracted feed liquid dilute with water 1～5 times, fills intermediate storage tank (9)；
2) extraction equipment (3) in two-stage extraction cells (1) loads the extraction feed liquid after organic facies, water or dilution, instead
Extraction equipment (2) loads organic facies and back extraction lean solution；
3) open the valve on the input duct (5) of two-stage extraction cells (1) and aqueous phase inlet pipe (7), close Drainage pipe (6) and
Aqueous phase goes out the valve on pipe (8)；
4) run extracting system, control the flow in two input duct (5): organic facies flow: the lean flow quantity of back extraction is 1:1:
1；
5) when two storage tanks (4) of two-stage extraction cells (1) are filled, close the valve on two input duct (5), open two
Root aqueous phase goes out the valve on pipe (8), controls two aqueous phases and goes out to manage the flow in (8): organic facies flow: the lean flow quantity of back extraction is 1:
1:1, continues to run with extracting system；
6) when the copper ion concentration in the storage tank (4) of two grades of extraction cells (1) reaches emission request, two aqueous phase inlet pipes are closed
(7) valve on, opens the valve on two Drainage pipes (6) and discharges qualified raffinate, when storage tank (4) empties soon, closes
Two aqueous phases go out the valve on pipe (8) and Drainage pipe (6), open the valve on two input duct (5) and aqueous phase inlet pipe (7)
Door；
7) step 4 is repeated) to 6) until having processed pending extraction feed liquid.
The copper extraction process of raising copper recovery the most according to claim 1, it is characterised in that described extraction equipment (3)
For mixer-settler, described mixer-settler is divided into mixing chamber (3c), clarification successively by the first baffle plate (3a), second baffle (3b)
Room (3d) and aqueous compartment (3e), the bottom (3f) of described clarifying chamber (3d) and aqueous compartment (3e) is from the side near mixing chamber (3c)
One inclined-plane of formation is extended gradually downward to the side near aqueous compartment (3e)；The upper end of described first baffle plate (3a) is A point, under
End is B point, and the upper end of described second baffle (3b) is C point, and lower end is D point, and described D point is less than described B point, and higher than aqueous compartment
(3e) outlet (3g).
The copper extraction process of raising copper recovery the most according to claim 2, it is characterised in that described two-stage extraction cells
(1) volume of storage tank (4) is equal, the volume of described intermediate storage tank (9) equal to extraction cells (1) storage tank (4) volume with
Clarifying chamber (3d) the volume half sum of extraction equipment (3).
The copper extraction process of raising copper recovery the most according to claim 1 and 2, it is characterised in that described step 1) in
Intermediate storage tank (9) is filled after copper extraction feed liquid dilute with water 1 times.
The copper extraction process of raising copper recovery the most according to claim 1 and 2, it is characterised in that described step 2) in
The organic facies loaded in the extraction equipment (3) of two-stage extraction cells (1): the volume ratio of the extraction feed liquid after water or dilution is 1:
1～2, the organic facies loaded in back extraction equipment (2) and the volume ratio of back extraction lean solution are 1:1～2.
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|---|---|---|---|
| CN201610834578.6A CN106191436B (en) | 2016-09-18 | 2016-09-18 | Improve the copper extraction process of copper recovery |
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|---|---|---|---|
| CN201610834578.6A CN106191436B (en) | 2016-09-18 | 2016-09-18 | Improve the copper extraction process of copper recovery |
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|---|---|---|---|---|
| EP1063307A2 (en) * | 1995-06-06 | 2000-12-27 | Henkel Corporation | Method for recovering copper by solvent extraction in alternate steps |
| US20040103756A1 (en) * | 2002-09-03 | 2004-06-03 | Kordosky Gary A. | Solvent extraction process |
| CN101935758A (en) * | 2010-09-10 | 2011-01-05 | 中国恩菲工程技术有限公司 | Extracting equipment |
| CN102839379A (en) * | 2012-09-26 | 2012-12-26 | 重庆康普化学工业有限公司 | On-line treatment method of acidic etching solution |
| CN203794625U (en) * | 2014-04-16 | 2014-08-27 | 重庆浩康医药化工集团有限公司 | Mixing and settling tank for producing metal sulfate solids |
-
2016
- 2016-09-18 CN CN201610834578.6A patent/CN106191436B/en active Active
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|---|---|---|---|---|
| EP1063307A2 (en) * | 1995-06-06 | 2000-12-27 | Henkel Corporation | Method for recovering copper by solvent extraction in alternate steps |
| US20040103756A1 (en) * | 2002-09-03 | 2004-06-03 | Kordosky Gary A. | Solvent extraction process |
| CN1678763A (en) * | 2002-09-03 | 2005-10-05 | 科金斯公司 | Solvent extraction process |
| CN101935758A (en) * | 2010-09-10 | 2011-01-05 | 中国恩菲工程技术有限公司 | Extracting equipment |
| CN102839379A (en) * | 2012-09-26 | 2012-12-26 | 重庆康普化学工业有限公司 | On-line treatment method of acidic etching solution |
| CN203794625U (en) * | 2014-04-16 | 2014-08-27 | 重庆浩康医药化工集团有限公司 | Mixing and settling tank for producing metal sulfate solids |
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| Title |
|---|
| 张启修 等: "《萃取冶金原理与实践》", 31 August 2014, 中南大学出版社 * |
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