CN102312099B - Copper sponge preparation process by reducing copper contained acidic leachate with iron powder - Google Patents
Copper sponge preparation process by reducing copper contained acidic leachate with iron powder Download PDFInfo
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- iron powder
- acid leaching
- leaching solution
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 91
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 82
- 229910052802 copper Inorganic materials 0.000 title abstract description 32
- 239000010949 copper Substances 0.000 title abstract description 32
- 230000002378 acidificating effect Effects 0.000 title abstract 4
- 238000002360 preparation method Methods 0.000 title abstract 4
- 238000006243 chemical reaction Methods 0.000 claims abstract description 89
- 238000005406 washing Methods 0.000 claims abstract description 14
- 235000003891 ferrous sulphate Nutrition 0.000 claims abstract description 13
- 239000011790 ferrous sulphate Substances 0.000 claims abstract description 13
- 230000000694 effects Effects 0.000 claims abstract description 9
- 239000002253 acid Substances 0.000 claims description 71
- 239000000243 solution Substances 0.000 claims description 67
- 238000002386 leaching Methods 0.000 claims description 66
- 238000000034 method Methods 0.000 claims description 27
- 238000005649 metathesis reaction Methods 0.000 claims description 26
- 239000011259 mixed solution Substances 0.000 claims description 25
- 238000003672 processing method Methods 0.000 claims description 24
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 claims description 12
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 12
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 12
- 230000035484 reaction time Effects 0.000 claims description 11
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims description 10
- 238000005070 sampling Methods 0.000 claims description 8
- 229960004643 cupric oxide Drugs 0.000 claims description 7
- 229910001431 copper ion Inorganic materials 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 239000002912 waste gas Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 20
- 238000006073 displacement reaction Methods 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 3
- 238000012824 chemical production Methods 0.000 abstract 1
- 239000002994 raw material Substances 0.000 description 9
- 238000004458 analytical method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 5
- 238000006722 reduction reaction Methods 0.000 description 5
- 239000005751 Copper oxide Substances 0.000 description 4
- 239000005864 Sulphur Substances 0.000 description 4
- 229910000431 copper oxide Inorganic materials 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- 238000010923 batch production Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 239000003978 infusion fluid Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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- 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 copper sponge preparation process, especially a copper sponge preparation process by reducing a copper contained acidic leachate with iron powder, and belongs to the technical field of chemical production and manufacture. Provided is copper sponge preparation process by reducing a copper contained acidic leachate with iron powder, with a low labor intensity and high automation degree. The intermediate comprises steps of: the iron powder and the copper contained acidic leachate, which participate in a reaction, are added into a main reaction tank of a reactor at a certain speed and treated with a certain displacement reaction under effect of a stirrer; then the mixture is sent into an intermediate reaction tank and treated with a slaking displacement reaction to generate copper sponge and ferrous sulphate; then the mixture is sent into a settler to separate the copper sponge at a settler bottom and a tail washing in an upper and middle part of the settler; at last, the copper sponge is collected through a dump valve at the settler bottom, and the tail washing is discharged from an overflow mouth at settler top.
Description
Technical field
The present invention relates to a kind of processing method of producing copper sponge, especially relate to the processing method that a kind of iron powder reducing cupric acid leaching solution is produced copper sponge, belong to Chemical Manufacture manufacturing technology field.
Background technology
In the prior art, the technique for preparing copper sponge with the cupric acid leaching solution all is intermittent type, its method is for putting into displacement slot with certain density cupric acid leaching solution first, molar ratio by copper in the leach liquor adds a certain amount of reduced iron powder again, react certain hour under machinery or the empty stirring of pressure, being separated after reaction is finished namely obtains copper sponge.Produce the technique of copper sponge for the intermittent type replacement(metathesis)reaction, existing many pieces of documents are mentioned and it are optimized, such as Duan Zhiyi, " copper sponge is produced in low grade copper oxide ore acid " of Sun Shengqi, the Chinese Resources comprehensive utilization, May in 2009 the 27th phases 5 volume, the technique of certain low grade copper oxide ore pickling liquor intermittent type of gold heap area being produced copper sponge is optimized, be respectively 5g/L for copper ion concentration, 8g/L, 10g/L, the acid immersion liquid of 15g/L is carried out reduction reaction with iron powder under the stirring velocity after the optimization, reaction times is gone back the yield of native copper all less than 80% when being 8h; Recovery time, yield brought up to 95～98% when being 12h, this method of producing copper sponge, and long reaction time, level of automation and production efficiency are all lower.And for example old along the side, " drill traverse complex copper oxide ore is produced copper sponge " of Zhong Wenyuan, non-ferrous metal (Smelting Part), 01 phase in 2000, a kind of method that Zhaotong region of Yunnan Province complex copper oxide ore is produced copper sponge of optimizing has been proposed, this technology by medial launder to the leach liquor after the sedimentation clarification again sedimentation to remove ore pulp residual in the leach liquor, reduce ore pulp to the parcel of cupric ion, thereby improve the rate of displacement of replacement(metathesis)reaction, the document also adopts the cost structure after this technology to sponge copper work, Yiliang, Zhaotong and the economic benefit that produces is analyzed, find by this Economic and Efficiency Analysis, although sponge copper work, Yiliang, Zhaotong takes this technology to obtain preferably economic benefit, prepare the copper sponge stage at leach liquor and exist labour intensity large, level of automation is low, pollute the problems such as large.
Summary of the invention
Technical problem to be solved by this invention is: what provide that a kind of labour intensity is little, level of automation is high produces the processing method of copper sponge with iron powder reducing cupric acid leaching solution.
For solving the problems of the technologies described above the technical scheme that adopts be: iron powder reducing cupric acid leaching solution is produced the processing method of copper sponge, may further comprise the steps,
To participate in first the cupric acid leaching solution of reaction with 30～100m
3/ h, iron powder add in the main reactor with the speed of 193～1260 ㎏/h, start simultaneously agitator in the main reactor at this, make cupric acid leaching solution and iron powder hybrid concurrency life replacement(metathesis)reaction;
Then, continuous adding along with cupric acid leaching solution and iron powder in the main reactor, add in advance and occur the mixing liquid of replacement(metathesis)reaction, mixed solution spout from the main reactor lower sides flows into the intermediate reaction groove, under the effect of the agitator in the intermediate reaction groove, continue the slaking replacement(metathesis)reaction occurs, the cupric oxide in the cupric acid leaching solution is thoroughly replaced, generate the mixed solution that contains copper sponge and ferrous sulfate;
Then, in the intermediate reaction groove, the mixed solution that contains copper sponge and ferrous sulfate of complete ripeness replacement(metathesis)reaction occurs, in with main reactor, flow into the intermediate reaction groove generation under the effect of mixed solution of replacement(metathesis)reaction, spout from the sidewall of middle reactive tank middle and upper part, flow in the subsider copper sponge of settlement separate one-tenth bottom and the tail washings that contains ferrous sulfate on top;
At last, the copper sponge that is deposited in the subsider bottom is emitted collection by the baiting valve that is arranged on the subsider bottom, the tail washings that is dissolved with ferrous sulfate is discharged from the overflow port on the sidewall of subsider top, so just, finish iron powder reducing cupric acid leaching solution and produced the technological process of copper sponge, and along with continuously adding iron powder and cupric acid leaching solution in the main reactor, whole replacement(metathesis)reaction process is continuously carried out.
Further be that the reaction times of the mixed solution of cupric acid leaching solution and iron powder in main reactor and intermediate reaction groove is respectively 0.5 ~ 3.0h and 2.0 ~ 4.5h.
Further be that the agitator that is arranged in main reactor and the intermediate reaction groove is electric mixer.
Further be that the stirring velocity of electric mixer in main reactor and intermediate reaction groove is respectively 10 ~ 200rpm and 5 ~ 100rpm.
Further be, cupric acid leaching solution and iron powder carry out in the process of slaking replacement(metathesis)reaction in the intermediate reaction groove, every is extracted at regular intervals the tail washings that flows out and chemically examines from the overflow port of subsider top sidewall, when the content of the cupric ion in the tail washings surpasses prescribed value, the starting entrance end is communicated with the bottom of intermediate reaction groove, exit end and the internal circulation system that the sidewall of main reactor is communicated with make content of copper ion surpass the interior mixed solution iterative cycles between main reactor and intermediate reaction groove of intermediate reaction groove of prescribed value.
Further be, adjacent two sub-samplings the time be spaced apart 0.5 ~ 5h.
Further be, internal circulation system is made of slush pump, and the entrance end of slush pump consists of the entrance end of internal circulation system, and exit end consists of the exit end of internal circulation system.
Further be, participate in the cupric acid leaching solution of reaction that the content of cupric ion is that 3～15g/l, acidity-basicity ph value are 0.5～2.0.
Further be that the waste gas that produces in the process of cupric acid leaching solution and iron powder generation replacement(metathesis)reaction is derived main reactor and intermediate reaction groove by the pipeline that is arranged on main reactor and intermediate reaction groove top.
Further be that the iron-holder that participates in the iron powder of reaction is 96%.
The invention has the beneficial effects as follows: adopt cupric acid leaching solution and the iron powder that will participate in reaction of the present invention continuously to add in the main reactor, and then with the cupric acid leaching solution of postorder adding main reactor and the increase of iron powder, and the mixed solution that makes the cupric acid leaching solution that reacted in advance and iron powder automatically enters intermediate reaction groove relaying supervention and gives birth to reaction, the copper sponge that generates and the mixed solution of sulfur acid ferrous iron enter subsider to be separated, sedimentation obtains the processing method of copper sponge, the production process of producing copper sponge is continuously carried out, raw materials for production add from the top of the main reactor of reactor, the copper sponge that generates is collected from the bottom of subsider, thereby production process is begun to the whole process of producing copper sponge from the adding of the raw materials such as cupric acid leaching solution and iron powder, all do not need manually to operate, level of automation and the production efficiency of production process have been improved, saved in the existing batch production mode, because the adding of raw material and the output of finished product all need to operate from the top of reactor, thereby make the cupric acid leaching solution, the adding of the raw materials for production such as iron powder and the collection of copper sponge operation all needs the situation of manually carrying out, and then reduced greatly operator's labour intensity in the production process, reliable assurance is provided for enhancing productivity.
Description of drawings
Fig. 1 be processing method that iron powder reducing cupric acid leaching solution of the present invention is produced copper sponge relate to the structural representation of reactor.
Be labeled as among the figure: main reactor 1, main reactor lower sides 11, mixed solution spout 12, agitator 2, intermediate reaction groove 3, intermediate reaction groove middle and upper part sidewall 31, spout 32, subsider 4, subsider top sidewall 41, overflow port 42, baiting valve 5, internal circulation system 6, entrance end 61, exit end 62, slush pump 63, pipeline 7.
Embodiment
What be as shown in Figure 1 that a kind of labour intensity provided by the invention is little, level of automation is high produces the processing method of copper sponge with iron powder reducing cupric acid leaching solution.Described processing method may further comprise the steps,
To participate in first the cupric acid leaching solution of reaction with 30～100m
3/ h, iron powder add in the main reactor 1 with the speed of 193～1260 ㎏/h, and the agitator 2 in this starts main reactor 1 simultaneously makes cupric acid leaching solution and iron powder hybrid concurrency give birth to replacement(metathesis)reaction;
Then, continuous adding along with cupric acid leaching solution and iron powder in the main reactor 1, add in advance and occur the mixing liquid of replacement(metathesis)reaction, mixed solution spout 12 from main reactor lower sides 11 flows into the intermediate reaction groove 3, under the effect of the agitator 2 in the anti-groove 3 in centre, continue the slaking replacement(metathesis)reaction occurs, the cupric oxide in the cupric acid leaching solution is thoroughly replaced, generate the mixed solution that contains copper sponge and ferrous sulfate;
Then, in intermediate reaction groove 3, the mixed solution that contains copper sponge and ferrous sulfate of complete ripeness replacement(metathesis)reaction occurs, in with main reactor 1, flow into intermediate reaction groove 3 generation under the effect of mixed solution of replacement(metathesis)reaction, spout 32 from the middle reactive tank middle and upper part sidewall 31, flow in the subsider 4 copper sponge of settlement separate one-tenth bottom and the tail washings that contains ferrous sulfate on top;
At last, the copper sponge that is deposited in subsider 4 bottoms is emitted collection by the baiting valve 5 that is arranged on the subsider bottom, the tail washings that is dissolved with ferrous sulfate is discharged from the overflow port 42 on the subsider top sidewall 41, so just, finish iron powder reducing cupric acid leaching solution and produced the technological process of copper sponge, and along with continuously adding iron charge and cupric acid leaching solution in the main reactor 1, whole replacement(metathesis)reaction process is continuously carried out.Adopt above-mentioned produce the processing method of copper sponge with iron powder reducing cupric acid leaching solution after, the production process of producing copper sponge is continuously carried out, raw materials for production add from the top of the main reactor 1 of reactor, the copper sponge that generates is collected from the bottom of subsider 4, thereby production process is begun to the whole process of producing copper sponge from the adding of the raw materials such as cupric acid leaching solution and iron powder, all do not need manually to operate, level of automation and the production efficiency of production process have been improved, saved in the existing batch production mode, because the adding of raw material and the output of finished product all need to operate from the top of reactor, thereby make the cupric acid leaching solution, the adding of the raw materials for production such as iron powder and the collection of copper sponge operation all needs the situation of manually carrying out, and then reduced greatly operator's labour intensity in the production process, reliable assurance is provided for enhancing productivity.
In order further to enhance productivity, reduce operator's labour intensity, the agitator of processing method of the present invention in main reactor 1 and intermediate reaction groove 3 is electric mixer; The stirring velocity of this electric mixer in main reactor 1 and intermediate reaction groove 3 is respectively 10 ~ 200rpm and 5 ~ 100rpm; The reaction times of the mixed solution of cupric acid leaching solution and iron powder in main reactor 1 and intermediate reaction groove 3 is respectively 0.5 ~ 3.0h and 2.0 ~ 4.5h.Can accelerate like this mixing velocity of cupric acid leaching solution and iron powder, and then accelerate the speed of response of mixture, the work that can effectively reduce again operator is strong, can also make the reaction times of described mixed solution abundant simultaneously, the collection of Effective Raise copper.
In order to improve the utilization ratio of raw material, improve the yield of copper in the mixed solution, in intermediate reaction groove 3, carry out in the process of slaking replacement(metathesis)reaction at cupric acid leaching solution and iron charge, every is extracted at regular intervals the tail washings that flows out and chemically examines from the overflow port 42 of subsider top sidewall 41, when the content of the cupric ion in the tail washings surpasses prescribed value, starting entrance end 61 is communicated with the bottom of intermediate reaction groove 3, exit end 62 and the internal circulation system 6 that the sidewall of main reactor 1 is communicated with make content of copper ion surpass mixed solution iterative cycles between main reactor 1 and intermediate reaction groove 3 in the intermediate reaction groove 3 of prescribed value; Adjacent two sub-samplings the time be spaced apart 0.5 ~ 5h.To the operation of the iterative cycles of mixed solution, both made mixing more abundant by described internal circulation system, can improve again speed of response and the thorough rate of reaction, thus effectively enhance productivity and mixed solution in the yield of copper.Low for what the structure that makes described internal circulation system 6 was tried one's best simply, cost of investment is tried one's best, internal circulation system 6 is made of slush pump 63, and the entrance end of slush pump 63 consists of the entrance end 61 of internal circulation system 6, and exit end consists of the exit end 62 of internal circulation system 6.For the ease of the collection and treatment to this sulphur-containing exhaust gas of the discharge of the sulphur-containing exhaust gas that produces in the production process and postorder, the pollution that reduction causes surrounding enviroment, the waste gas that produces in the process of cupric acid leaching solution and iron powder generation replacement(metathesis)reaction answers pipeline 7 derivation main reactor 1 and the centre at groove 3 tops to answer groove 3 by being arranged on main reactor 1 and centre.So both make things convenient for the discharge of sulphur-containing exhaust gas, and be convenient to again postorder to the collection and treatment of this sulphur-containing exhaust gas, rather than directly be discharged in the air, caused the pollution of surrounding enviroment.
In sum, adopt after the processing method of the present invention, compare with processing method of the prior art, have the following advantages:
At first because the effect of agitator 2 and the turbulence effect that enters continuously the acid infusion solution of cupric of main reactor 1, so that the acid infusion solution two of iron powder and cupric contacts more from dividing, thus fast reaction speed;
Secondly, two-stage reductive reaction by main reactor 1 and intermediate reaction groove 3, and to the monitoring of content of copper ion in the reaction solution, thereby by the higher reaction mixture of content of copper ion is played the operation of circulation by internal circulation system, well guaranteed the reduction ratio of copper;
Again, because charging and discharging all are to carry out continuously, have saved the hand labor in the intermittent type reduction process, and have solved the reduction ratio problem on the low side that causes because of personal errors, can reduce the generation of the security incident under the more bad Working environment that manpower fatigue brings, level of automation is higher;
At last, waste gas, the waste liquid that produces in the reaction process of main reactor 1 and intermediate reaction groove 2 has continuously, the little characteristics of unit time amount, can greatly reduce volume and the investment of environmental protection facility.
Below in conjunction with specific embodiment processing method of the present invention is further described.
Embodiment one:
Be 3g/l with copper content, certain resource-type copper mine acid leaching solution of pH=1.2, the reductibility iron powder of iron level 96%, be 30m3/h by control leach liquor flow velocity, the iron powder mass rate is the speed of 193kg/h, join simultaneously respectively in the main reactor 1 of flow reactor, and turn on agitator 2, wherein the rotating speed of the agitator 2 in the main reactor 1 is 50rpm, the rotating speed of the agitator 2 in the intermediate reaction groove 3 is 20rpm, and cupric acid leaching solution and iron powder be controlled to be 5h from entering main reactor 1 to the reaction times at subsider 4 interior collection copper sponges, 48h works continuously, sampling analysis at regular intervals, the yield that obtains this continuous reducing process process copper all is higher than 95%, average yield 97.2%.
Embodiment two:
Be 8g/l with copper content, certain resource-type copper mine acid leaching solution of pH=0.8, the reductibility iron powder of iron level 96%, be 50m3/h by control leach liquor flow velocity, the iron powder mass rate is the speed of 420kg/h, join simultaneously respectively in the main reactor 1 of flow reactor, and turn on agitator 2, wherein the rotating speed of the agitator 2 in the main reactor 1 is 80rpm, the rotating speed of the agitator 2 in the intermediate reaction groove 3 is 20rpm, and cupric acid leaching solution and iron powder be controlled to be 4h from entering main reactor 1 to the reaction times at subsider 4 interior collection copper sponges, 36h works continuously, sampling analysis at regular intervals, the yield that obtains this continuous reducing process process copper all is higher than 95%, average yield 96.7%.
Embodiment three:
With copper content 14g/l, certain resource-type copper mine acid leaching solution of pH=0.5, the reductibility iron powder of iron level 96%, be 60m3/h by control leach liquor flow velocity, the iron powder mass rate is the speed of 880kg/h, join simultaneously respectively in the main reactor 1 of flow reactor, and turn on agitator 2, wherein the rotating speed of the agitator 2 in the main reactor 1 is 100rpm, the rotating speed of the agitator 2 in the intermediate reaction groove 3 is 20rpm, and cupric acid leaching solution and iron powder be controlled to be 3h from entering main reactor 1 to the reaction times at subsider 4 interior collection copper sponges, 36h works continuously, sampling analysis at regular intervals, the yield that obtains this continuous reducing process process copper all is higher than 94.5%, average yield 96.5%.
Embodiment four:
With copper content 12g/l, certain resource-type copper mine acid leaching solution of pH=2.0, the reductibility iron powder of iron level 96%, be 100m3/h by control leach liquor flow velocity, the iron powder mass rate is the speed of 1260kg/h, join simultaneously respectively in the main reactor 1 of flow reactor, and open and stir, wherein the rotating speed of the agitator 2 in the main reactor 1 is 80rpm, the rotating speed of the agitator 2 in the intermediate reaction groove 3 is 20rpm, and cupric acid leaching solution and iron powder be controlled to be 2h from entering main reactor 1 to the reaction times at subsider 4 interior collection copper sponges, 36h works continuously, sampling analysis at regular intervals, the yield that obtains this continuous reducing process process copper all is higher than 84.6%, average yield 89.1%.
Because the yield of copper is too low in the reduction production process continuously, both increased cost, the waste resource, the waste water of discharging also can cause large shallow-layer to dye to environment because copper content is too high, for this reason, processing parameter is adjusted, be specially: the slush pump internal circulation system of opening the main reactor bottom, the flow that reduces the adding of cupric acid leaching solution is 60m3/h, the flow of iron powder is 756kg/h, the rotating speed of adjusting simultaneously the agitator 2 in the main reactor 1 is 120rpm, the rotating speed of the agitator 2 in the intermediate reaction groove 3 is 15rpm, be controlled to be 4h to the reaction times at subsider 4 interior collection copper sponges, the 24h that works continuously, at regular intervals sampling analysis from cupric acid leaching solution and iron powder from entering main reactor 1, the yield that obtains this continuous reducing process process copper all is higher than 90.6%, average yield 95.9%.
Claims (10)
1. iron powder reducing cupric acid leaching solution is produced the processing method of copper sponge, may further comprise the steps,
To participate in first the cupric acid leaching solution of reaction with 30～100m
3/ h, iron powder add in the main reactor (1) with the speed of 193～1260 ㎏/h, and the agitator (2) in this starts main reactor (1) simultaneously makes cupric acid leaching solution and iron powder hybrid concurrency give birth to replacement(metathesis)reaction;
Then, continuous adding along with cupric acid leaching solution in the main reactor (1) and iron powder, add in advance and occur the mixing liquid of replacement(metathesis)reaction, mixed solution spout (12) from main reactor lower sides (11) flows into the intermediate reaction groove (3), under the effect of the agitator (2) in intermediate reaction groove (3), continue the slaking replacement(metathesis)reaction occurs, the cupric oxide in the cupric acid leaching solution is thoroughly replaced, generate the mixed solution that contains copper sponge and ferrous sulfate;
Then, in intermediate reaction groove (3), the mixed solution that contains copper sponge and ferrous sulfate of complete ripeness replacement(metathesis)reaction occurs, in with main reactor (1), flow into intermediate reaction groove (3) generation under the effect of mixed solution of replacement(metathesis)reaction, spout (32) from the middle reactive tank middle and upper part sidewall (31), flow in the subsider (4) copper sponge of settlement separate one-tenth bottom and the tail washings that contains ferrous sulfate on top;
At last, the copper sponge that is deposited in subsider (4) bottom is emitted collection by the baiting valve (5) that is arranged on the subsider bottom, the tail washings that is dissolved with ferrous sulfate is discharged from the overflow port (42) on the subsider top sidewall (41), so just, finish iron powder reducing cupric acid leaching solution and produced the technological process of copper sponge, and along with continuously adding iron powder and cupric acid leaching solution in the main reactor (1), whole replacement(metathesis)reaction process is continuously carried out.
2. iron powder reducing cupric acid leaching solution according to claim 1 is produced the processing method of copper sponge, it is characterized in that: the reaction times of the mixed solution of cupric acid leaching solution and iron powder in main reactor (1) and intermediate reaction groove (3) is respectively 0.5 ~ 3.0h and 2.0 ~ 4.5h.
3. iron powder reducing cupric acid leaching solution according to claim 1 is produced the processing method of copper sponge, it is characterized in that: the agitator (2) that is arranged in main reactor (1) and the intermediate reaction groove (3) is electric mixer.
4. iron powder reducing cupric acid leaching solution according to claim 3 is produced the processing method of copper sponge, it is characterized in that: the stirring velocity of electric mixer in main reactor (1) and intermediate reaction groove (3) is respectively 10 ~ 200rpm and 5 ~ 100rpm.
5. iron powder reducing cupric acid leaching solution according to claim 1 is produced the processing method of copper sponge, it is characterized in that: cupric acid leaching solution and iron powder carry out in the process of slaking replacement(metathesis)reaction in intermediate reaction groove (3), every is extracted at regular intervals the tail washings that flows out and chemically examines from the overflow port (42) of subsider top sidewall (41), when the content of the cupric ion in the tail washings surpasses prescribed value, starting entrance end (61) is communicated with the bottom of intermediate reaction groove (3), exit end (62) and the internal circulation system (6) that the sidewall of main reactor (1) is communicated with make content of copper ion surpass the interior mixed solution iterative cycles between main reactor (1) and intermediate reaction groove (3) of intermediate reaction groove (3) of prescribed value.
6. iron powder reducing cupric acid leaching solution according to claim 5 is produced the processing method of copper sponge, it is characterized in that: adjacent two sub-samplings the time be spaced apart 0.5 ~ 5h.
7. iron powder reducing cupric acid leaching solution according to claim 5 is produced the processing method of copper sponge, it is characterized in that: internal circulation system (6) is made of slush pump (63), the entrance end of slush pump (63) consists of the entrance end (61) of internal circulation system, and exit end consists of the exit end (62) of internal circulation system.
8. iron powder reducing cupric acid leaching solution according to claim 1 is produced the processing method of copper sponge, it is characterized in that: participate in the cupric acid leaching solution of reaction, the content of cupric ion is that 3～15g/l, acidity-basicity ph value are 0.5～2.0.
9. iron powder reducing cupric acid leaching solution according to claim 1 is produced the processing method of copper sponge, it is characterized in that: the waste gas that in the process of cupric acid leaching solution and iron powder generation replacement(metathesis)reaction, produces, derive main reactor (1) and intermediate reaction groove (3) by the pipeline (7) that is arranged on main reactor (1) and intermediate reaction groove (3) top.
10. each described iron powder reducing cupric acid leaching solution is produced the processing method of copper sponge according to claim 1～9, it is characterized in that: the iron-holder that participates in the iron powder of reaction is 96%.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102998536A CN102312099B (en) | 2011-09-29 | 2011-09-29 | Copper sponge preparation process by reducing copper contained acidic leachate with iron powder |
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| CN103387296B (en) * | 2012-05-09 | 2016-08-31 | 上海问鼎环保科技有限公司 | A kind of method removing chemical plating copper ions in sewage |
| CN106148726A (en) * | 2016-08-23 | 2016-11-23 | 金川集团股份有限公司 | A kind of ferrum displacement method produces the energy-saving and emission-reduction method in copper sponge |
| CN107099677B (en) * | 2017-06-02 | 2019-01-08 | 绍兴上虞微益再生资源有限公司 | A kind of preparation process of copper sponge |
| CN107876538A (en) * | 2017-10-17 | 2018-04-06 | 广西金川有色金属有限公司 | A kind of device and technique that Copper making comprehensive utilization of tailing is prepared to molysite |
| CN109439900A (en) * | 2018-12-04 | 2019-03-08 | 浙江中金格派锂电产业股份有限公司 | Raffinate liquor treating process and its device in metallurgical industry |
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| CN1108885C (en) * | 2000-06-06 | 2003-05-21 | 广东工业大学 | Technological process using electroplating sludge as resource to make harmless treatment |
| DE102004014686A1 (en) * | 2004-03-25 | 2005-10-13 | Consortium für elektrochemische Industrie GmbH | Surface-modified particle-containing curable composition |
| CN100467632C (en) * | 2007-07-19 | 2009-03-11 | 刘金荣 | Method for dump leaching producting copper and copper sulfate by copper oxide ore acid method |
| CN101215642A (en) * | 2008-01-14 | 2008-07-09 | 吴长青 | Method for producing spongy copper by utilizing rejected copper oxide ore |
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