CN109911928A - A method of fast instant copper - Google Patents
A method of fast instant copper Download PDFInfo
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- CN109911928A CN109911928A CN201910214462.6A CN201910214462A CN109911928A CN 109911928 A CN109911928 A CN 109911928A CN 201910214462 A CN201910214462 A CN 201910214462A CN 109911928 A CN109911928 A CN 109911928A
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- copper
- lysate
- pot
- smelted
- compressed air
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Abstract
The invention discloses a kind of methods of fast instant copper, mouth are added by copper material in solid copper, pot for smelted copper is added, and material accumulation thickness can be passed through with air to be advisable, and material addition finishes closing feed opening；It opens circulating pump and lysate is added into pot for smelted copper 1 by lysate import；Open heating equipment, lysate is heated 50-65 DEG C, compressed air is added into pot for smelted copper 1, SO2 gas is added by SO2 gas feed, structure adjusting is carried out to each response parameter, fast instant copper generates CuSO4, when Cu2+ concentration is than or equal to 100g/L in solution, stop reaction, is discharged via the lysate outlet of pot for smelted copper, the copper-bath of output qualification is exported by lysate and is discharged, and exhaust gas is discharged by exhaust outlet.Copper dissolution rate of the present invention is fast, and the utilization rate of oxygen reaches 80% in air, blasts air capacity and is greatly decreased, and lysate evaporation capacity reduces about 30%, and molten copper ability is up to 800kg/m3.d.
Description
Technical field
The invention belongs to chemical fields, are related to the recycling and reusing of copper scrap, and in particular to a method of fast instant copper.
Background technique
Solid copper is exactly become Cu by molten copper2+, it is dissolved in aqueous solution, is widely used in copper sulphate preparation, copper foil production is given up
Copper recycling prepares mantoquita.Domestic and international molten copper is all made of air oxidant, lysate is inflated air in production process, then together
Metallic copper reaction.Oxidant is made using air (oxygen mainly in air), oxidizing potential is lower, only 400-500mV, molten
Copper speed is slow, and the reaction time is long, and production efficiency is low.
Summary of the invention
The present invention is directed to existing above problem when existing molten copper, provides a kind of method of fast instant copper, shortens reaction
Time reduces reaction temperature and production cost, improves molten copper efficiency.
The technical solution adopted by the invention is as follows: a kind of method of fast instant copper, includes the following steps,
A. solid copper, lysate are sequentially added into pot for smelted copper, wherein it is mixed that lysate is that sulfuric acid and copper sulphate are formulated
Liquid is closed, sulfuric acid concentration is 30-180g/L, Cu in mixed liquor2+Initial concentration is 0-55g/L；
B. stop heating after being heated to 50-65 DEG C to lysate, be passed through 0.03- into lysate from the bottom of pot for smelted copper
The compressed air of 0.3Mpa, flow 5-550m3/ h, and be passed through in the forward direction compressed air that compressed air enters dissolving tank
0.035-0.35Mpa, flow 0.15-55 m3The SO of/h2Gas, compressed air and SO2The volume ratio of both gas is 100:3-
10, the oxidizing potential of lysate is improved, molten copper is quickly aoxidized and generates CuSO4。
Solid copper of the present invention is copper billet, copper rice, copper wire, any one in copper powder.
Preferably, sulfuric acid concentration is 80-90g/L, Cu in mixed liquor2+Initial concentration is 15-25g/L.
Preferably, the SO being passed through in the forward direction compressed air that compressed air enters dissolving tank2The pressure of gas is higher than
The pressure of compressed air.
Preferably, the additional amount of lysate presses solid copper per ton, 2.9-4.5 m is added3Meter.
Lysate volume of the invention determines according to production needs, by the way that dissolution flow container is separately provided when volume is inadequate, with
Pot for smelted copper is used in series；When copper content is high in lysate, multiple pot for smelted copper are used in series.
The present invention is passed through compressed air and SO2The oxidizing potential of lysate is increased to 1000- by 400-500mV after gas
1200mV。
The present invention stops reaction, via the lysate of pot for smelted copper when Cu2+ concentration is than or equal to 100g/L in solution
Outlet discharge.
It is preferred that the volume of pot for smelted copper is 3-120m3, it is highly 3-6m.Multilayer is equipped in pot for smelted copper for placing solid copper
Blowing layer.
The present invention has following superiority compared with existing copper dissolving method:
1. the SO for accounting for compressed air volume 3-10% is added before pot for smelted copper is added in air of the present invention2, lysate oxidizing potential is by 400-
500mV is increased to 1000-1200mV(i.e.: SO2It is dissolved in water power and separates out SO3 2-；SO3 2-With the O in air2In conjunction with generation SO5 2-,
SO5 2-With high energy group, the oxidizing potential of lysate reaches as high as 1200mV.), oxidation efficiency improves 2 times or more, fast instant copper
Generate CuSO4, the utilization rate of oxygen reaches 80% in air, blasts air capacity and is greatly decreased, and lysate evaporation capacity reduces about 30%,
Molten copper ability is up to 800kg/m3.d。
2.SO2Sulfuric acid is ultimately produced after lysate is added together with air, copper dissolution reaction is participated in, generation is reacted with Cu
CuSO4, generated without extra substance in lysate, no side reaction, it is possible to reduce sulfuric acid consumption.
2. the present invention solves air, oxygen makees oxidant, oxidizing potential is low, and molten copper speed is slow, and the reaction time is long, production effect
The low drawback of rate.
3. the present invention is since lysate oxidizing potential is high, copper dissolution speed is fast, and release heat is more in the unit time, molten copper mistake
Lysate is without heating in journey.
4. when molten copper, the too low production efficiency of temperature is low, temperature is more than oxygen and the dissolution of other gases in 80 DEG C of lysates
Amount can sharply decline, and speed of production is substantially slack-off；Since solid copper is dissolved as exothermic reaction, the present invention only needs producing initial stage to molten
Solution liquid stops heating after being heated to 50-65 DEG C, lysate oxidizing potential is high, and solid copper dissolution can 50-60 DEG C of condition of low temperature again
Lower fast reaction；The present invention is since lysate oxidizing potential is high, even if sulfuric acid concentration is 20g/L, the solution rate of copper is still
Quickly.
5. pot for smelted copper volume of the present invention determines according to production needs, generally in 3-120m3Between, highly between 3-6m；
By the way that multiple solid copper bed of materials are arranged in pot for smelted copper, increase solid copper charge is on each layer by the accumulation of solid copper, thick
Degree is subject to mixed gas and is passed through, and increases the contact area with air and lysate, accelerates reaction rate, shortens
Production cycle.
6. solid copper can be copper billet, copper rice, copper wire, copper powder etc., increases specific surface area by carrying out shearing to it, compare table
Area is bigger, and response area is bigger, and solution rate is faster, and production efficiency is higher.
7. of the invention by SO2Gas is added before air enters dissolving tank, is convenient for air and SO2It is sufficiently mixed, and presses
Contracting air and SO2The volume ratio of gas be set as 100:3-10 solid copper solution rate it is fast, because of SO2Gas concentration is too low molten
Liquid oxidation is weaker, SO2The excessively high solution of gas concentration is in reproducibility, and solution rate drastically reduces.
Detailed description of the invention
Structural schematic diagram Fig. 1 of the invention.
In figure: 1. pot for smelted copper；2. air intlet；3. SO2Gas feed；4. lysate exports；5. lysate into
Mouthful；6. mouth is added in bronze medal material；7. exhaust outlet.
Specific embodiment
A method of fast instant copper, its step are as follows: solid copper (copper billet, copper wire, copper sheet, copper powder) is added by copper material
Pot for smelted copper 1 is added in entrance 6, and material accumulation thickness can be passed through with air to be advisable, and material addition finishes closing feed opening；It opens
It opens circulating pump and lysate is added into pot for smelted copper 1 by lysate import 5；Heating equipment is opened, lysate is heated；By sky
Compressed air (oxygen) is added into pot for smelted copper 1 in gas (oxygen) import 2, passes through SO2SO is added in gas feed 32Gas, to each anti-
Parameter is answered to carry out structure adjusting, fast instant copper generates CuSO4, as Cu in solution2+When concentration is than or equal to 100g/L, stop anti-
Answer, be discharged via the lysate outlet of pot for smelted copper, the copper-bath of output qualification is discharged by lysate outlet 4, exhaust gas by
Exhaust outlet 7 is discharged.
Above-mentioned copper tank volume determines according to production needs, generally in 3-120m3Between, highly between 3-6m, solid copper
It can be copper billet, copper rice, copper wire, copper powder etc., the ulking thickness of solid copper, which is subject to mixed gas, to be passed through, pot for smelted copper
The blowing layer of multiple solid coppers can be designed；The mixed liquor that lysate is formulated by sulfuric acid and copper sulphate, wherein in mixed liquor
Sulfuric acid concentration be generally between 30-180g/L, with 80-90g/L it is best, in production process at any time add keep acidity stablize,
Cu2+Initial concentration is preferred generally between 0-55g/L with 15-25g/L, and lysate volume determines according to production needs, if body
Dissolution flow container can be not enough separately provided in product, be used in series with pot for smelted copper；If copper dissolution solution copper content is more demanding, multiple pot for smelted copper
It can be used in series, series-connected stage number is determined according to production requirement.Compressed air is passed through into lysate from the bottom of pot for smelted copper, it is empty
Atmospheric pressure is between 0.03-0.3Mpa, and flow is in 5-550m3Between/h, the compressed air before compressed air enters dissolving tank
In be passed through SO2Gas, SO2Gas pressure is between 0.035-0.35, flow 0.15-55 m3Between/h, compressed air and SO2Gas
The volume ratio of body is 100:3-10, is passed through SO2。
Embodiment 1
A method of fast instant copper, its step are as follows:
(1) tough cathode or copper scrap are cut into 100 × 100mm bulk, is added pot for smelted copper (2500 × 4000mm of pot for smelted copper φ), adds
Enter about 5 tons of amount of copper, then bed of material ulking thickness about 1.0m closes feed opening；
(2) circulating pump is opened, is added lysate into pot for smelted copper, lysate ingredient is sulfuric acid, water, copper-bath, wherein sulphur
Acid concentration is 85g/L or so, Cu2+Concentration is 10g/L or so, and lysate volume is 15m3；
(3) heating equipment is opened, lysate is heated to 50-60 DEG C；
(4) compressed air, compressed air require 100m are passed through to pot for smelted copper3/ h, pressure: 0.25Mpa；
(5) SO is passed through into compressed air2, flow 4.5m3/ h, pressure: 0.25Mpa；
(6) about 5h, pot for smelted copper lysate Cu are dissolved2+Concentration reaches 100g/L, meets next procedure production requirement；
(7) qualified copper dissolution solution is sent to downstream process application.
Embodiment 2
A method of fast instant copper, its step are as follows:
(1) pot for smelted copper is added in copper wire, copper wire diameter φ 1mm, length 600mm, pot for smelted copper 2500 × 4000mm of φ, additional amount is about
5 tons, then bed of material ulking thickness about 1.5m closes feed opening；
(2) circulating pump is opened, is added lysate into pot for smelted copper, lysate ingredient is sulfuric acid, water, copper-bath, wherein sulphur
Acid concentration is 85g/L or so, Cu2+Concentration is 10g/L or so, and lysate volume is 14.5m3, sulfuric acid concentration is lower than in solution
It is replenished in time when 20g/L；
(3) heating equipment is opened, lysate is heated to 50-60 DEG C, then stops heating；
(4) compressed air, compressed air require 120m are passed through to pot for smelted copper3/ h, pressure: 0.25Mpa；
(5) SO is passed through into compressed air2, flow 5.0m3/ h, pressure: 0.25Mpa；
(6) about 4h, pot for smelted copper lysate Cu are dissolved2+Concentration reaches 100g/L, meets next procedure production requirement；
(7) qualified copper dissolution solution is sent to downstream process application.
Embodiment 3
A method of fast instant copper, its step are as follows:
(1) pot for smelted copper, powder D is added in copper powder5070-100 υ m, pot for smelted copper 2500 × 4000mm of φ, about 3.5 tons of additional amount, material
Layer ulking thickness about 0.35m, then closes feed opening；
(2) circulating pump is opened, is added lysate into pot for smelted copper, lysate ingredient is sulfuric acid, water, copper-bath, wherein sulphur
Acid concentration is 85g/L or so, Cu2+Concentration is 10g/L or so, and lysate volume is 15.5m3, sulfuric acid concentration is lower than in solution
It is replenished in time when 20g/L；
(3) heating equipment is opened, lysate is heated to 50-60 DEG C, then stops heating；
(4) compressed air, compressed air require 125m are passed through to pot for smelted copper3/ h, pressure: 0.25Mpa；
(5) SO is passed through into compressed air2, flow 5.0m3/ h, pressure: 0.25Mpa；
(6) about 3.8h, pot for smelted copper lysate Cu are dissolved2+Concentration reaches 100g/L, meets next procedure production requirement；
(7) qualified copper dissolution solution is sent to downstream process application.
Claims (10)
1. a kind of method of fast instant copper, it is characterised in that: include the following steps,
A. solid copper, lysate are sequentially added into pot for smelted copper, wherein it is mixed that lysate is that sulfuric acid and copper sulphate are formulated
Liquid is closed, sulfuric acid concentration is 30-180g/L, Cu in mixed liquor2+Initial concentration is 0-55g/L；
B. stop heating after being heated to 50-65 DEG C to lysate, be passed through 0.03- into lysate from the bottom of pot for smelted copper
The compressed air of 0.3Mpa, flow 5-550m3/ h, and be passed through in the forward direction compressed air that compressed air enters dissolving tank
0.035-0.35Mpa, flow 0.15-55 m3The SO of/h2Gas, compressed air and SO2The volume ratio of both gas is 100:3-
10, the oxidizing potential of lysate is improved, molten copper is quickly aoxidized and generates CuSO4。
2. a kind of method of fast instant copper according to claim 1, it is characterised in that: solid copper is copper billet, copper rice, copper
Any one in line, copper powder.
3. a kind of method of fast instant copper according to claim 1 or 2, it is characterised in that: sulfuric acid concentration is in mixed liquor
80-90g/L, Cu2+Initial concentration is 15-25g/L.
4. a kind of method of fast instant copper according to claim 3, it is characterised in that: compressed air enter dissolving tank it
The pressure for the SO2 gas being passed through in forward direction compressed air is higher than the pressure of compressed air.
5. a kind of method of fast instant copper according to claim 1 or 4, it is characterised in that: the additional amount of lysate is by every
Ton solid copper, is added 2.9-4.5 m3Meter.
6. a kind of method of fast instant copper according to claim 5, it is characterised in that: lysate volume is according to production needs
It determines, by the way that dissolution flow container is separately provided when volume is inadequate, is used in series with pot for smelted copper；It is multiple when copper content is high in lysate
Pot for smelted copper is used in series.
7. a kind of method of fast instant copper according to claim 1 or 6, it is characterised in that: be passed through compressed air and SO2Gas
The oxidizing potential of lysate is increased to 1000-1200mV by 400-500mV after body.
8. a kind of method of fast instant copper according to claim 7, it is characterised in that: Cu in solution2+Concentration is more than or waits
When 100g/L, stop reaction, is discharged via the lysate outlet of pot for smelted copper.
9. a kind of according to claim 1, method of fast instant copper described in 2,4,6 or 8, it is characterised in that: the body of pot for smelted copper
Product is 3-120m3, it is highly 3-6m.
10. a kind of method of fast instant copper according to claim 9, it is characterised in that: be used in pot for smelted copper equipped with multilayer
Place the blowing layer of solid copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910214462.6A CN109911928B (en) | 2019-03-20 | 2019-03-20 | Method for quickly dissolving copper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910214462.6A CN109911928B (en) | 2019-03-20 | 2019-03-20 | Method for quickly dissolving copper |
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| Publication Number | Publication Date |
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| CN109911928A true CN109911928A (en) | 2019-06-21 |
| CN109911928B CN109911928B (en) | 2021-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910214462.6A Active CN109911928B (en) | 2019-03-20 | 2019-03-20 | Method for quickly dissolving copper |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111850603A (en) * | 2020-07-08 | 2020-10-30 | 珠海格力绿色再生资源有限公司 | Recovery device and recovery method for oil-containing copper sludge |
| CN113457611A (en) * | 2021-07-06 | 2021-10-01 | 江西鑫铂瑞科技有限公司 | Electrolytic copper foil copper dissolving material process capable of reducing energy consumption |
| CN115108592A (en) * | 2022-06-30 | 2022-09-27 | 金川集团股份有限公司 | Production method of high-purity cobalt sulfate |
| CN115178164A (en) * | 2022-07-05 | 2022-10-14 | 西安航天源动力工程有限公司 | Preparation device and preparation method of copper sulfate electrolyte |
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| CN1335264A (en) * | 2001-09-03 | 2002-02-13 | 贾荣宝 | Wet low-temperature oxidation and decomposition process of producing active copper oxide |
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2019
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| CN1335264A (en) * | 2001-09-03 | 2002-02-13 | 贾荣宝 | Wet low-temperature oxidation and decomposition process of producing active copper oxide |
Non-Patent Citations (1)
| Title |
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| 葛红花等: ""大气中SO2对铜的腐蚀行为研究"", 《上海电力学院学报》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111850603A (en) * | 2020-07-08 | 2020-10-30 | 珠海格力绿色再生资源有限公司 | Recovery device and recovery method for oil-containing copper sludge |
| CN111850603B (en) * | 2020-07-08 | 2021-11-23 | 珠海格力绿色再生资源有限公司 | Recovery device and recovery method for oil-containing copper sludge |
| CN113457611A (en) * | 2021-07-06 | 2021-10-01 | 江西鑫铂瑞科技有限公司 | Electrolytic copper foil copper dissolving material process capable of reducing energy consumption |
| CN113457611B (en) * | 2021-07-06 | 2022-08-05 | 江西鑫铂瑞科技有限公司 | Electrolytic copper foil copper dissolving material process capable of reducing energy consumption |
| CN115108592A (en) * | 2022-06-30 | 2022-09-27 | 金川集团股份有限公司 | Production method of high-purity cobalt sulfate |
| CN115178164A (en) * | 2022-07-05 | 2022-10-14 | 西安航天源动力工程有限公司 | Preparation device and preparation method of copper sulfate electrolyte |
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