CN105274353A - Technology for extracting copper from high-sulfur copper, oxygen and sulfur containing mixed type ore - Google Patents
Technology for extracting copper from high-sulfur copper, oxygen and sulfur containing mixed type ore Download PDFInfo
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- CN105274353A CN105274353A CN201510789182.XA CN201510789182A CN105274353A CN 105274353 A CN105274353 A CN 105274353A CN 201510789182 A CN201510789182 A CN 201510789182A CN 105274353 A CN105274353 A CN 105274353A
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The invention relates to a technology for extracting copper from high-sulfur copper, oxygen and sulfur containing mixed type ore. The technology comprises the following steps that firstly, soluble copper is immersed in water, finely-broken raw ore and water are fed in a stirring trough to be stirred till the soluble copper is basically dissolved, and solid and liquid separation is carried out to obtain a water immersing soluble copper pregnant solution and separation leached residues; secondly, differential flotation of copper ore is carried out on the leached residues step by step, lime ground ore is added into the separation leached residues, the usage amount 1 of Z-200 and 2# oil is added for stirring and slurry mixing, copper roughing I is carried out, copper rough concentrate I and copper roughing tailings I are obtained, copper sifting I is carried out to obtain copper concentrate I, copper roughing II is carried out to obtain copper rough concentrate II and copper roughing tailings II, copper sifting II and copper sifting III are carried out on the copper rough concentrate II to obtain copper concentrate II, Z-200 and 2# oil is added in the copper roughing tailings II, and copper scavenging I and copper scavenging II are carried out to obtain copper flotation tailings and copper scavenging concentrate II; and thirdly, copper flotation tailings are used for floatation of sulfur, butyl xanthate and 2# oil are added for stirring and slurry mixing, sulfur roughing is carried out, sulfur sifting is carried out, sulfur concentrate and sulfur cleaner tailings are obtained, and sulfur scavenging concentrate and final tailings are separated through sulfur scavenging. The technology has the beneficial effects that the consumption of medicaments is small, the unit cost is low, the comprehensive recovery rate is high, and environment friendliness is achieved.
Description
Technical field
The present invention relates to a kind of hydrometallurgy copper-extracting process, particularly one copper-extracting process from high-sulfur cupric oxysulphied type ore, be suitable in high-sulfur cupric oxysulphied type ore, proposing copper application.
Background technology
Along with China's rapid development of economy, the consumption cumulative year after year of copper, causes higher-grade copper-sulphide ores resource to reduce gradually, and the exploitation of exploitation copper oxide ore particularly refractory copper oxide ore become the emphasis of research.But the relatively high copper oxide ore of grade is often positioned at the secondary enrichment band of ore body, it forms generally is all oxidation of sulfureted mixed type copper mine.Oxidation of sulfureted mixed type copper mine sample ore consists of: the copper mineral mainly malachite of oxidation state, copper mineral mainly covellite, copper glance, the chalcopyrite etc. of sulphided state.This high-sulfur cupric oxysulphied type copper mine leaches copper recovery with dilute sulphuric acid merely and is less than 65%, and with flotation process, then copper recovery is lower.
Because the character of high-sulfur cupric oxysulphied type ore is complicated, sorting difficulty is high, current process high-sulfur cupric oxysulphied type ore generally has following several processing method: (A) roasting-dilute sulphuric acid lixiviation process, and this method exists that roasting process power consumption is large, temperature controls badly also can cause local sintering and affect leaching, have the deficiencies such as certain atmospheric pollution; (B) cupric oxide acidleach-flotation of leached residue method or cupric sulfide flotation-mine tailing pickling process, the deficiencies such as this method exists long flow path, equipment is many, equipment corrosion is serious, disperse containing copper products, total yield is low; (C) dilute sulphuric acid leaching-iron powder replacement-floatation process, i.e. so-called LPF method, especially U.S.'s application is more abroad, and this method exists product and only has that the materials consumption such as copper ore concentrates, iron filings is higher, the deficiency such as extremely uneconomical economically; (D) flotation oxidized ore after first Flotation of Sulfide Ores, for the ore that sulfur-bearing is high, there is the deficiencies such as the basicity required is high, dosing large, subsequent oxidation copper ore floatation difficulty in this method.
Yulong copper mine, Tibet is located in three rivers source, copper reserves of 6.5 million tons, complicated mineral composition, mineral sort is more, if the metal owner pyrite, followed by chalcopyrite, copper blue, digenite, chalcocite, bornite, malachite and azurite, limonite, magnetite, jarosite, and very small amounts of molybdenite, bismuthinite, brittle sulphur copper bismuth ore, silver cosalite, pieces of copper vitriol, scheelite, wolframite, etc., the main gangue mineral is quartz, feldspar, mica, pyroxene and clay minerals, it also contains trace amounts of epidote, garnet and calcite and content little titanite, apatite and zircon and monazite, a complex symbiotic copper oxide minerals and sulphide ore, plateau alpine hypoxia areas in China is a typical representative of the copper resources.(D) method comparatively economic according to background technology carries copper to these type of mineral, i.e. first floatation recovery cupric sulfide, find during floatation recovery copper oxide mineral again: when floating cupric sulfide mineral, because pyrite flotability not oxidized in ore is better, so this part pyrite is difficult to suppress, have a strong impact on Cu Concentrate Grade; When follow-up sulfide flotation reclaims cupric oxide, because oxidized fine pyrites flotability is poor, such that sulphur is more difficult to be sorted thoroughly, compete with cupric oxide simultaneously and adsorb, directly affect cupric oxide sulfide flotation effect so understand.
Therefore, research and develop the copper-extracting process from high-sulfur cupric oxysulphied type ore that a kind of sorting result is good, strong adaptability, unit cost are low, low in the pollution of the environment and just seem particularly important.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, one copper-extracting process from high-sulfur cupric oxysulphied type ore is provided.
Task of the present invention has been come by the following technical programs:
Copper-extracting process from high-sulfur cupric oxysulphied type ore, comprises following processing steps in sequence and condition:
A. water logging soluble copper, by raw ore dry weight basis per ton, first by the raw ore fed in steel basin after in small, broken bits in mass ratio 1:2 add water, stir about 10 minutes, water-soluble copper in raw ore is dissolved substantially, and next carries out solid-liquid separation, obtain the expensive liquid of water logging soluble copper and be separated leaching slag, allow the expensive liquid of water logging soluble copper enter other stage of hydrometallurgy respectively and carry copper separately, separation leaching slag is washed, obtains soaking slag;
B. slag Two stage preferential flotation copper mine is soaked, leaching slag steps A obtained feeds ball mill, add lime 3000 ~ 4000g and first carry out ore grinding, the fineness of discharging material to ball mill accounts for 70 ~ 75% for-0.074mm, secondly discharges material to ball mill and adds Z-200 about 10 ~ 20g, 2 successively
#oil 10 ~ 20g stirs and sizes mixing, and carries out copper and roughly selects I, obtain copper rough concentrate I and copper rougher tailings I, respectively copper rough concentrate I is carried out copper selected I, obtain copper ore concentrates I and selected I mine tailing of copper, then add Z-200 about 20 ~ 30g, 2 to copper rougher tailings I
#oil 20 ~ 30g carries out copper and roughly selects II, obtains copper rough concentrate II and copper rougher tailings II, respectively copper rough concentrate II is carried out copper selected II and copper selected III, obtain copper ore concentrates II, add Z-200 about 10 ~ 20g, 2 to copper rougher tailings II
#oil 10 ~ 20g carries out copper and scans I, then adds Z-200 about 5 ~ 10g, 2
#oil 5 ~ 10g carries out copper and scans II, obtains nominal group process and copper scans II concentrate;
C. nominal group process flotation sulphur, first adds butyl xanthate 100 ~ 120g, 2 to the nominal group process of step B
#oil 30 ~ 40g stirs to size mixing and carries out sulphur and roughly select, and obtains sulphur rough concentrate and sulphur rougher tailings, and it is selected respectively sulphur rough concentrate to be carried out sulphur, obtains iron concentrate and sulphur cleaner tailings, adds butyl xanthate 30 ~ 40g, 2 to sulphur rougher tailings
#oil 10 ~ 15g stirs to size mixing and carries out sulphur and scan, and separates sulphur scavenger concentrate and true tailings.
The present invention compared with prior art has the following advantages:
1. water logging soluble copper, reduces the harm of cupric ion self-activation, and the expensive liquid of water logging copper obtained in advance is containing copper grade > 2.8g/L, copper recovery > 22.0%.
2. soak slag Two stage preferential flotation, obtain qualified copper ore concentrates, copper ore concentrates I copper grade > 40.0%, copper recovery > 47%; Copper ore concentrates II copper grade > 20.0%, copper recovery > 21%; Copper total yield > 90.0%.
3. nominal group process flotation sulphur, also can obtain qualified iron concentrate.
4. reagent consumption is few, unit cost is low, comprehensive recovery is high, pulp alkalinity is low, environmentally friendly.
Accompanying drawing explanation
Fig. 1 is the one copper-extracting process schema from high-sulfur cupric oxysulphied type ore proposed according to the present invention.
In accompanying drawing, each tag is respectively:
1. raw ore 2. water logging soluble copper expensive liquid 3. lean solution 4. is soaked slag 5. bronze medal and is scanned I concentrate 6. bronze medal and scan the selected III mine tailing 10. copper ore concentrates I 11. copper ore concentrates II 12. nominal group process 13. sulphur cleaner tailings 14. sulphur scavenger concentrate 15. iron concentrate 16. true tailings a. water b. lime c.Z-200d.2 of selected II mine tailing 9. bronze medal of selected I mine tailing 8. bronze medal of II concentrate 7. bronze medal
#oil e. butyl xanthate
Below in conjunction with accompanying drawing, explanation is described in further detail.
Embodiment
As shown in Figure 1, one of the present invention is copper-extracting process from high-sulfur cupric oxysulphied type ore, comprises following processing steps in sequence and condition:
A. water logging soluble copper, by raw ore dry weight basis per ton, first by the raw ore 1 fed in steel basin after in small, broken bits in mass ratio 1:2 add water, stir about 10 minutes, water-soluble copper in raw ore 1 is dissolved substantially, and next carries out solid-liquid separation, obtain the expensive liquid 2 of water logging soluble copper and be separated leaching slag, allow the expensive liquid 2 of water logging soluble copper enter other stage of hydrometallurgy respectively and carry copper separately, separation leaching slag is washed, obtains soaking slag 4;
B. slag Two stage preferential flotation copper mine is soaked, the leaching slag 4 steps A obtained feeds ball mill, add lime b3000 ~ 4000g and first carry out ore grinding, the fineness of discharging material to ball mill accounts for 70 ~ 75% for-0.074mm, secondly discharges material to ball mill and adds Z-200c about 10 ~ 20g, 2 successively
#oil d10 ~ 20g stirs and sizes mixing, and carries out copper and roughly selects I, obtain copper rough concentrate I and copper rougher tailings I, respectively copper rough concentrate I is carried out copper selected I, obtain copper ore concentrates I 10 and selected I mine tailing 7 of copper, then add Z-200c about 20 ~ 30g, 2 to copper rougher tailings I
#oil d20 ~ 30g carries out copper and roughly selects II, obtains copper rough concentrate II and copper rougher tailings II, respectively copper rough concentrate II is carried out copper selected II and copper selected III, obtain copper ore concentrates II 11, add Z-200c about 10 ~ 20g, 2 to copper rougher tailings II
#oil d10 ~ 20g carries out copper and scans I, then adds Z-200c about 5 ~ 10g, 2
#oil d5 ~ 10g carries out copper and scans II, obtains nominal group process 12 and copper scans II concentrate 6;
C. nominal group process flotation sulphur, first adds butyl xanthate e100 ~ 120g, 2 to the nominal group process 12 of step B
#oil d30 ~ 40g stirs to size mixing and carries out sulphur and roughly select, and obtains sulphur rough concentrate and sulphur rougher tailings, and it is selected respectively sulphur rough concentrate to be carried out sulphur, obtains iron concentrate 15 and sulphur cleaner tailings 13, adds butyl xanthate e30 ~ 40g, 2 to sulphur rougher tailings
#oil d10 ~ 15g stirs to size mixing and carries out sulphur and scan, and separates sulphur scavenger concentrate 14 and true tailings 16.
Described steps A water logging soluble copper is washed isolated lean solution 3 and is returned agitation cycle use.
Described step B soaks copper that the copper cleaner tailings 8 of slag Two stage preferential flotation copper mine copper selected II and copper scans I and scans I concentrate 5 and return copper and roughly select II and select.
Selected III mine tailing 9 of copper of described step B copper selected III and selected I mine tailing 7 of copper of copper selected I return or enter copper selected II and select.
The copper that described step B copper scans II is scanned II concentrate 6 and is returned copper and scan I and select.
The sulphur cleaner tailings 13 that described step C nominal group process flotation sulphur sulphur is selected and the sulphur that sulphur is scanned are scanned mine tailing 14 and are returned sulphur and roughly select and select.
Adopt the ore of Yulong copper mine different ore deposits section, test according to technical process of the present invention, involved per-cent is mass percent, and most preferred embodiment is as follows:
Embodiment 1
The Yulong copper mine raw ore chemical examination extracted is cupric 2.60%, sulfur-bearing 18.16%, iron content 15.84% i.e. raw ore copper sulfide content 71.76%, cupric oxide content 28.24%.
By raw ore dry weight basis per ton, first by the raw ore fed in steel basin after in small, broken bits in mass ratio 1:2 add water, stir about is after 10 minutes, carry out solid-liquid separation, obtain the expensive liquid of water logging copper, add clear water washing to solid leaching slag, washing lean solution returns steel basin and recycles.Solid leaching slag after washing enters next step flotation operation, lime b4000g is added in ball mill, solid is soaked the grinding fineness of discharging material to ball mill in sizing ore deposit and account for 70% for-0.074mm, add Z-200c20g, 2# oil d20g stirring to size mixing, carry out first time copper and roughly select operation, then add Z-200c30g, 2# oil d30g stir size mixing after carry out second time copper and roughly select operation; Then add Z-200c10g, 2# oil d10g stir size mixing after carry out first time copper and scan operation, then add and carry out second time copper after Z-200c5g, 2# oil consumption 5g stirring is sized mixing and scan operation.It is selected that the copper rough concentrate roughly selecting operation to first time copper carries out copper, obtains copper ore concentrates I; The mine tailing of selected for copper operation is merged with second time copper rough concentrate and carries out the selected operation of second time copper and the selected operation of third time copper.Each operation intermediates order returns an operation, obtains copper ore concentrates II.Nominal group process after being scanned by second time copper carries out the operation of flotation sulphur, add successively butyl xanthate e120g, 2# oil d30g stir size mixing after carry out sulphur and roughly select operation.Add again butyl xanthate e30g, 2# oil 10g stir size mixing after carry out sulphur and scan operation.It is selected that the sulphur rough concentrate roughly selecting operation to sulphur carries out sulphur blank.Each operation intermediates order returns an operation, obtains iron concentrate and true tailings.
Embodiment 2
The ore chemical examination used is cupric 3.01%, sulfur-bearing 17.65%, iron content 14.84%.Copper sulfide content is 68.67%, and cupric oxide content is 31.33%.
The processing step carrying copper is identical with condition.
The embodiment of the present invention 1, embodiment 2 concrete outcome are in table 1.
Table 1 embodiment detected result
Note: the unit indicating " * " is g/L.
As mentioned above, just the present invention can be realized preferably.Above-described embodiment is only the present invention's preferably embodiment; but embodiments of the present invention are not restricted to the described embodiments; other changes made under not deviating from spirit of the present invention and principle, modification, replacement, combination, simplification; all should be the substitute mode of equivalence, be included in protection scope of the present invention.
Claims (6)
1. a copper-extracting process from high-sulfur cupric oxysulphied type ore, comprises following processing steps in sequence and condition:
A. water logging soluble copper, by raw ore dry weight basis per ton, by the raw ore fed in steel basin after in small, broken bits (1) in mass ratio 1:2 add water, stir about 10 minutes, water-soluble copper in raw ore (1) is dissolved substantially, and next carries out solid-liquid separation, obtain the expensive liquid of water logging soluble copper (2) and be separated leaching slag, allow the expensive liquid of water logging soluble copper (2) enter other stage of hydrometallurgy respectively and carry copper separately, separation leaching slag is washed, obtains leaching slag (4);
B. slag Two stage preferential flotation copper mine is soaked, the leaching slag (4) steps A obtained feeds ball mill, add lime (b) 3000 ~ 4000g and first carry out ore grinding, the fineness of discharging material to ball mill accounts for 70 ~ 75% for-0.074mm, secondly discharges material to ball mill and adds Z-200 (c) about 10 ~ 20g, 2 successively
#oil (d) 10 ~ 20g stirs and sizes mixing, carry out copper and roughly select I, obtain copper rough concentrate I and copper rougher tailings I, respectively copper rough concentrate I is carried out copper selected I, obtain copper ore concentrates I (10) and selected I mine tailing (7) of copper, then add Z-200 (c) about 20 ~ 30g, 2 to copper rougher tailings I
#oil (d) 20 ~ 30g carries out copper and roughly selects II, obtains copper rough concentrate II and copper rougher tailings II, respectively copper rough concentrate II is carried out copper selected II and copper selected III, obtain copper ore concentrates II (11), add Z-200 (c) about 10 ~ 20g, 2 to copper rougher tailings II
#oil (d) 10 ~ 20g carries out copper and scans I, obtains copper and scans I mine tailing and copper scans I concentrate (5), then scans I mine tailing to copper and add Z-200 (c) about 5 ~ 10g, 2
#oil (d) 5 ~ 10g carries out copper and scans II, obtains copper and scans II mine tailing (12) and copper scans II concentrate (6);
C. nominal group process flotation sulphur, first adds butyl xanthate (e) 100 ~ 120g, 2 to the nominal group process (12) of step B
#oil [d] 30 ~ 40g stirs to size mixing and carries out sulphur and roughly select, and obtains sulphur rough concentrate and sulphur rougher tailings, and it is selected respectively sulphur rough concentrate to be carried out sulphur, obtains iron concentrate (15) and sulphur cleaner tailings (13), to sulphur rougher tailings interpolation butyl xanthate (e) 30 ~ 40g, 2
#oil (d) 10 ~ 15g stirs to size mixing and carries out sulphur and scan, and separates sulphur scavenger concentrate (14) and true tailings (16).
2. technique according to claim 1, is characterized in that described steps A water logging soluble copper is washed isolated lean solution (3) and returned agitation cycle use.
3. technique according to claim 1, is characterized in that described step B soaks copper that the copper cleaner tailings (8) of slag Two stage preferential flotation copper mine copper selected II and copper scans I and scans I concentrate (5) and return copper and roughly select II and select.
4. technique according to claim 1, is characterized in that selected III mine tailing of the copper (9) of described step B copper selected III and selected I mine tailing (7) of copper of copper selected I return or enter copper selected II and select.
5. technique according to claim 1, is characterized in that copper that described step B copper scans II is scanned II concentrate (6) and returned copper and scan I and select.
6. technique according to claim 1, is characterized in that the sulphur cleaner tailings (13) that described step C nominal group process flotation sulphur sulphur is selected and the sulphur that sulphur is scanned are scanned mine tailing (14) and returned sulphur and roughly select and select.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021037243A1 (en) * | 2019-08-29 | 2021-03-04 | 江西理工大学 | Pyrrhotite mineral processing method using low-alkali process of flotation followed by magnetic separation |
| CN112985946A (en) * | 2021-03-10 | 2021-06-18 | 南京海关工业产品检测中心 | Detection method for judging oxidation degree of copper concentrate containing bornite |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101537388A (en) * | 2009-04-21 | 2009-09-23 | 广州有色金属研究院 | Separation method for bismuth-molybdenum-copper-sulfide mixed concentrate |
| CN102179310A (en) * | 2010-12-23 | 2011-09-14 | 紫金矿业集团股份有限公司 | Floating process for comprehensively recycling copper separation tailings |
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2015
- 2015-11-17 CN CN201510789182.XA patent/CN105274353B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101537388A (en) * | 2009-04-21 | 2009-09-23 | 广州有色金属研究院 | Separation method for bismuth-molybdenum-copper-sulfide mixed concentrate |
| CN102179310A (en) * | 2010-12-23 | 2011-09-14 | 紫金矿业集团股份有限公司 | Floating process for comprehensively recycling copper separation tailings |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021037243A1 (en) * | 2019-08-29 | 2021-03-04 | 江西理工大学 | Pyrrhotite mineral processing method using low-alkali process of flotation followed by magnetic separation |
| CN112985946A (en) * | 2021-03-10 | 2021-06-18 | 南京海关工业产品检测中心 | Detection method for judging oxidation degree of copper concentrate containing bornite |
| CN112985946B (en) * | 2021-03-10 | 2022-03-08 | 南京海关工业产品检测中心 | Detection method for judging oxidation degree of copper concentrate containing bornite |
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