CN105274353B - The copper-extracting process from high-sulfur cupric oxysulphied type ore - Google Patents
The copper-extracting process from high-sulfur cupric oxysulphied type ore Download PDFInfo
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- CN105274353B CN105274353B CN201510789182.XA CN201510789182A CN105274353B CN 105274353 B CN105274353 B CN 105274353B CN 201510789182 A CN201510789182 A CN 201510789182A CN 105274353 B CN105274353 B CN 105274353B
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Abstract
The present invention relates to one kind from high-sulfur cupric oxysulphied type ore copper-extracting process, carry out as follows：A. water logging soluble copper, stirs to water-soluble copper-based dissolving during tcrude ore in small, broken bits and water are fed into tank diameter, and separation of solid and liquid obtains the expensive liquid of water logging soluble copper and separates phase analysis；B. phase analysis Two stage preferential flotation copper mine, lime ore grinding is added to phase analysis are separated, and adds Z 200,2#The stirring of oily consumption 1 is sized mixing and carries out copper roughing I and obtain copper rough concentrate I and copper rougher tailings I, copper selected I will be carried out again will obtain copper concentrate I, carry out copper roughing II and obtain copper rough concentrate II and copper rougher tailings II, copper rough concentrate II is carried out into copper selected II and copper selected III respectively, copper concentrate II is obtained, Z 200,2 is added to copper rougher tailings II#Oil carry out copper scan I and copper scan II and obtain nominal group process and copper scans II concentrate；C. nominal group process flotation sulphur, first adds butyl xanthate, 2#Oil stirring is sized mixing and carries out sulphur roughing, then to carry out sulphur selected, obtains iron concentrate and sulphur cleaner tailings, and sulphur is scanned and separates sulphur scavenger concentrate and true tailings, has the advantages that reagent consumption is few, unit cost is low, comprehensive recovery is high, environmentally friendly.
Description
Technical field
The present invention relates to a kind of hydrometallurgy copper-extracting process, more particularly to one kind is from high-sulfur cupric oxysulphied type ore
Copper-extracting process, is suitable to propose copper application in high-sulfur cupric oxysulphied type ore.
Background technology
With China's rapid development of economy, the consumption cumulative year after year of copper causes high-grade copper-sulphide ores resource gradually
Reduce, the exploitation of exploitation cupric oxide ore particularly refractory copper oxide ore turn into the emphasis of research.But grade is of a relatively high
Cupric oxide ore be often positioned in the secondary enrichment band of ore body, it is typically all oxidation of sulfureted mixed type copper mine that it is constituted.Oxidation
Vulcanization mixed type copper mine sample ore constitutes and is：The copper mineral of oxidation state is mainly malachite, the copper mineral of sulphided state be mainly covellite,
Vitreous copper, chalcopyrite etc..The simple dilute sulfuric acid of this high-sulfur cupric oxysulphied type copper mine leaches copper recovery and is less than 65%, uses
Then copper recovery is lower for flotation treatment.
Because the property of high-sulfur cupric oxysulphied type ore is complicated, sorting difficulty is high, at present treatment high-sulfur cupric oxygen sulphur
Mixed type ore typically has following several processes：(A) there is roasting process power consumption in roasting-dilute sulfuric acid lixiviation process, the method
Greatly, temperature control is bad can also cause local sintering and influence to leach, have the deficiencies such as certain air pollution；(B) cupric oxide acid
Leaching-flotation of leached residue method or copper sulfide flotation-mine tailing acid-hatching of young eggs, the method have that long flow path, equipment are more, equipment corrosion is serious, contain
Copper products dispersion, the low deficiency of overall recovery；(C) dilute sulfuric acid leaching-iron powder replacement-floatation process, i.e., so-called LPF methods,
The external especially U.S. applies more, and it is higher, economically extremely uneconomical that the method has the product only material consumption such as copper concentrate, iron filings
Deng not enough；(D) flotation oxide ore after first Flotation of Sulfide Ores, the ore high for sulfur-bearing, method has that desired basicity is high, medicament
The deficiencies such as consumption is big, subsequent oxidation copper ore floatation difficulty.
Tibetan saussure be located at Head streams, 6,500,000 tons of copper reserves, mineral composition is more complicated, and mineral species are more,
Its metalliferous mineral is mainly pyrite, next to that chalcopyrite, covellite, alpha chalcocite, vitreous copper, bornite, malachite, blue copper
Ore deposit, limonite, magnetic iron ore, autunezite, the oblique side's brightness lead bismuth of also minimal amount of molybdenite, Hui mi ore deposits, laprothite, argentiferous
Ore deposit, antleritel, scheelite, wolframite etc., its gangue mineral are mainly quartz, feldspar, mica, pyroxene and clay minerals, separately
It is outer also to contain micro allochite, garnet, calcite and the little aspidelite of content, apatite, zircon, monazite etc., category
It is the Typical Representative of China's highland and severe cold anoxic Copper Ores in Region resource in oxide ore and sulphide ore complexity symbiosis copper mine.According to
Relatively inexpensive (D) method of background technology is carried out carrying copper to such mineral, i.e., copper sulfide is reclaimed in first flotation, then cupric oxide is reclaimed in flotation
Found during mineral：In floating cupric sulfide mineral, due to pyrite floatability not oxidized in ore preferably, so this part
Pyrite is difficult to suppress, and has a strong impact on Cu Concentrate Grade；When follow-up sulfide flotation reclaims cupric oxide, because the particulate being oxidized is yellow
Iron ore floatability is poor so that sulphur is more difficult to be sorted thoroughly, while competitive Adsorption is produced with cupric oxide, so cupric oxide can be directly affected
Sulfide flotation effect.
Therefore, research and develop a kind of good sorting result, strong adaptability, unit cost it is low, low in the pollution of the environment from high-sulfur cupric oxygen
Copper-extracting process is just particularly important in sulphur mixed type ore.
The content of the invention
The purpose of the present invention is to overcome the deficiencies in the prior art, there is provided one kind is carried from high-sulfur cupric oxysulphied type ore
Process for copper.
Task of the invention is completed by the following technical programs：
The copper-extracting process from high-sulfur cupric oxysulphied type ore, including following processing steps in sequence and condition：
A. water logging soluble copper, based on tcrude ore dry weight per ton, will first feed tcrude ore in tank diameter after in small, broken bits by
Mass ratio 1：2 add water, stir 10 minutes so that water-soluble copper dissolution in tcrude ore, next carries out separation of solid and liquid, and obtaining water logging can
The molten expensive liquid of copper and phase analysis are separated, other stages separately carry copper into hydrometallurgy to allow the expensive liquid of water logging soluble copper respectively, are soaked to separating
Slag is washed, and obtains phase analysis；
The phase analysis that step A is obtained are fed ball mill by B. phase analysis Two stage preferential flotation copper mine, add lime 3000~
4000g first carries out ore grinding, the fineness of material is discharged for -0.074mm accounts for 70~75% to ball mill, secondly to ball mill effluent
Material adds 10~20g of Z-200,2 successively#10~20g of oil stirrings are sized mixing, and carry out copper roughing I, obtain copper rough concentrate I and copper roughing
Mine tailing I, carries out copper selected I by copper rough concentrate I respectively, obtains copper concentrate I and selected I mine tailing of copper, then add to copper rougher tailings I
20~30g of Z-200,2#20~30g of oil carries out copper roughing II, obtains copper rough concentrate II and copper rougher tailings II, respectively that copper is thick
Concentrate II carries out copper selected II and copper selected III, obtains copper concentrate II, to 10~20g of the addition Z-200 of copper rougher tailings II, 2#
10~20g of oil carries out copper and scans I, then adds 5~10g of Z-200,2#5~10g of oil carries out copper and scans II, obtain nominal group process and
Copper scans II concentrate；
C. nominal group process flotation sulphur, first to 100~120g of nominal group process addition butyl xanthate, 2 of step B#30~40g of oil is stirred
Mix to size mixing and carry out sulphur roughing, obtain sulphur rough concentrate and sulphur rougher tailings, it is selected that sulphur rough concentrate carried out into sulphur respectively, obtains iron concentrate
With sulphur cleaner tailings, 30~40g of butyl xanthate, 2 are added to sulphur rougher tailings#10~15g of oil stirrings are sized mixing and carry out sulphur and scan, and are separated
Sulphur scavenger concentrate and true tailings.
The present invention has advantages below compared with prior art：
1. water logging soluble copper, reduces the harm of copper ion self-activation, the expensive liquid ＞ containing copper grade of water logging copper for obtaining in advance
2.8g/L, copper recovery ＞ 22.0%.
2. phase analysis Two stage preferential flotation, obtains qualified copper concentrate, copper concentrate I copper grade ＞ 40.0%, copper recovery ＞
47%；The copper grade ＞ 20.0% of copper concentrate II, copper recovery ＞ 21%；Copper overall recovery ＞ 90.0%.
3. nominal group process flotation sulphur, can also obtain qualified iron concentrate.
4. reagent consumption is few, unit cost is low, comprehensive recovery is high, pulp alkalinity is low, environmentally friendly.
Brief description of the drawings
Fig. 1 is according to one kind copper-extracting process flow chart from high-sulfur cupric oxysulphied type ore proposed by the present invention.
Each tag is respectively in accompanying drawing：
1. the bronze medal of 4. phase analysis of expensive 3. lean solution of liquid of the water logging soluble copper of tcrude ore 2. 5. scans the bronze medal of I concentrate 6. and scans II concentrate
7. the nominal group process of I 11. copper concentrate of selected III mine tailing, 10. copper concentrate of the selected bronze medal of II mine tailing 9. of the selected bronze medal of I mine tailing 8. of copper II 12.
The true tailings a. water b. lime c.Z-200 of 13. sulphur cleaner tailings, 14. sulphur scavenger concentrate, 15. iron concentrate 16. is d.2#Oil
E. butyl xanthate
Specification is described in further detail below in conjunction with accompanying drawing.
Specific embodiment
As shown in figure 1, one kind copper-extracting process from high-sulfur cupric oxysulphied type ore of the invention, including following order
Processing step and condition：
A. water logging soluble copper, based on tcrude ore dry weight per ton, will first feed tcrude ore 1 in tank diameter after in small, broken bits by
Mass ratio 1：2 add water, stir 10 minutes so that water-soluble copper dissolution in tcrude ore 1, next carries out separation of solid and liquid, obtains water logging
The expensive liquid 2 of soluble copper and separate phase analysis, other stages separately carry copper into hydrometallurgy to allow the expensive liquid 2 of water logging soluble copper respectively, to point
Washed from phase analysis, obtained phase analysis 4；
B. phase analysis Two stage preferential flotation copper mine, the phase analysis 4 that step A is obtained feed ball mill, add lime b3000~
4000g first carries out ore grinding, the fineness of material is discharged for -0.074mm accounts for 70~75% to ball mill, secondly to ball mill effluent
Material adds 10~20g of Z-200c, 2 successively#Oily d10~20g stirrings are sized mixing, and carry out copper roughing I, obtain copper rough concentrate I and copper is thick
Mine tailing I is selected, copper rough concentrate I is carried out into copper selected I respectively, obtain copper concentrate I 10 and selected I mine tailing 7 of copper, then to copper rougher tailings
I 20~30g of addition Z-200c, 2#Oily d20~30g carries out copper roughing II, obtains copper rough concentrate II and copper rougher tailings II, point
Copper rough concentrate II is not carried out into copper selected II and copper selected III, copper concentrate II 11 is obtained, Z-200c is added to copper rougher tailings II
10~20g, 2#Oily d10~20g carries out copper and scans I, then adds 5~10g of Z-200c, 2#Oily d5~10g carries out copper and scans II, obtains
II concentrate 6 is scanned to nominal group process 12 and copper；
C. nominal group process flotation sulphur, first to the addition butyl xanthate of nominal group process 12 e100~120g, 2 of step B#Oily d30~
40g stirrings are sized mixing and carry out sulphur roughing, obtain sulphur rough concentrate and sulphur rougher tailings, and it is selected that sulphur rough concentrate carried out into sulphur respectively, obtains
Iron concentrate 15 and sulphur cleaner tailings 13, to sulphur rougher tailings addition butyl xanthate e30~40g, 2#Oily d10~15g stirring size mixing into
Row sulphur is scanned, and separates sulphur scavenger concentrate 14 and true tailings 16.
The lean solution 3 that described step A water loggings soluble copper washing is isolated returns to agitation cycle and uses.
The copper that the copper cleaner tailings 8 and copper of described step B phase analysis Two stage preferential flotations copper mine copper selected II scan I is scanned
I concentrate 5 returns to copper roughing II and selects again.
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 to or enter copper
Selected II selects again.
The copper that described step B copper scans II scans II concentrate 6 and returns to copper and scans I and select again.
The sulphur that the selected sulphur cleaner tailings 13 of described step C nominal group process flotation sulphur sulphur and sulphur are scanned is scanned mine tailing 14 and is returned
Sulphur roughing is returned to select again.
Using the ore of Yulong copper mine difference ore deposit section, tested according to technological process of the invention, involved percentage
Than being mass percent, most preferred embodiment is as follows：
Embodiment 1
The Yulong copper mine tcrude ore chemical examination of extraction is cupric 2.60%, and sulfur-bearing 18.16%, iron content 15.84% is tcrude ore
Copper sulfide content 71.76%, aoxidizes copper content 28.24%.
Based on tcrude ore dry weight per ton, the tcrude ore in mass ratio 1 after in small, broken bits in tank diameter will be first fed：2 add
Water, stir about carries out separation of solid and liquid after 10 minutes, obtains the expensive liquid of water logging copper, adds clear water to wash solid phase analysis, and washing lean solution is returned
Tank diameter is returned to recycle.Solid phase analysis after washing enter next step flotation operation, and lime b4000g is added in ball mill,
By the mog of solid phase analysis ore grinding to ball mill discharge material for -0.074mm accounts for 70%, addition Z-200c20g, 2# oil
D20g stirrings are sized mixing, and carry out first time copper roughing operation, then add Z-200c30g, 2# oil d30g stir size mixing after carry out second
Secondary copper roughing operation；Then addition Z-200c10g, 2# oil d10g stirrings carry out first time copper and scan operation after sizing mixing, then add
Z-200c5g, 2# oil consumption 5g stirrings carry out second bronze medal and scan operation after sizing mixing.To first time, the copper of copper roughing operation is coarse-fine
It is selected that ore deposit carries out copper, obtains copper concentrate I；The mine tailing of the selected operation of copper is merged with second bronze medal rough concentrate carries out second bronze medal essence
It is elected to be industry and the selected operation of third time copper.Each operation intermediate products order returns to a upper operation, obtains copper concentrate II.Will be for the second time
Nominal group process after copper is scanned carries out flotation sulphur operation, and adding successively after butyl xanthate e120g, 2# oil d30g stirrings are sized mixing carries out sulphur
Roughing operation.Adding again after butyl xanthate e30g, 2# oil 10g stirrings are sized mixing carries out sulphur and scans operation.Sulphur to sulphur roughing operation is thick
It is selected that concentrate carries out sulphur blank.Each operation intermediate products order returns to a upper operation, obtains iron concentrate and true tailings.
Embodiment 2
The ore chemical examination for using is cupric 3.01%, sulfur-bearing 17.65%, iron content 14.84%.Copper sulfide content is
68.67%, oxidation copper content is 31.33%.
The processing step for carrying copper is identical with condition.
The embodiment of the present invention 1, the concrete outcome of embodiment 2 are shown in Table 1.
The embodiment testing result of table 1
Note：The unit for indicating " * " is g/L.
As described above, the present invention can be better realized.Above-described embodiment is only the present invention preferably implementation method, but this
The implementation method of invention is simultaneously not restricted to the described embodiments, and other are without departing from being done under Spirit Essence of the invention and principle
Change, modify, replace, combine, simplify, should be equivalent substitute mode, be included in protection scope of the present invention.
Claims (6)
1. one kind copper-extracting process from high-sulfur cupric oxysulphied type ore, including following processing steps in sequence and condition：
A. water logging soluble copper, based on tcrude ore dry weight per ton, will feed the tcrude ore (1) in tank diameter after in small, broken bits by quality
Than 1：2 add water, stir 10 minutes so that water-soluble copper dissolution in tcrude ore (1), next carries out separation of solid and liquid, and obtaining water logging can
The molten expensive liquid of copper (2) and phase analysis are separated, other stages separately carry copper into hydrometallurgy to allow the expensive liquid of water logging soluble copper (2) respectively, right
Separate phase analysis to be washed, obtain phase analysis (4)；
B. phase analysis Two stage preferential flotation copper mine, the phase analysis that step A is obtained (4) feed ball mill, add lime (b) 3000~
4000g first carries out ore grinding, the fineness of material is discharged for -0.074mm accounts for 70~75% to ball mill, secondly to ball mill effluent
Material adds Z-200 (c) 10~20g, 2 successively#Oil (d) 10~20g stirrings are sized mixing, and carry out copper roughing I, obtain the He of copper rough concentrate I
Copper rougher tailings I, carries out copper selected I by copper rough concentrate I respectively, obtains copper concentrate I (10) and selected I mine tailing (7) of copper, then to copper
The addition of rougher tailings I Z-200 (c) 20~30g, 2#Oil (d) 20~30g carries out copper roughing II, obtains copper rough concentrate II and copper is thick
Mine tailing II is selected, copper rough concentrate II is carried out into copper selected II and copper selected III respectively, copper concentrate II (11) is obtained, to copper rougher tailings
II addition Z-200 (c) 10~20g, 2#Oil (d) 10~20g carries out copper and scans I, obtains that copper scans I mine tailing and copper scans I concentrate
(5), I mine tailing addition Z-200 (c) 5~10g, 2 then to copper are scanned#Oil (d) 5~10g carries out copper and scans II, obtains copper and scans II
Mine tailing (12) and copper scan II concentrate (6)；
C. nominal group process flotation sulphur, first the copper to step B scan II mine tailing (12) addition butyl xanthate (e) 100~120g, 2#Oily [d]
30~40g stirrings are sized mixing and carry out sulphur roughing, obtain sulphur rough concentrate and sulphur rougher tailings, and it is selected that sulphur rough concentrate carried out into sulphur respectively,
Iron concentrate (15) and sulphur cleaner tailings (13) are obtained, to sulphur rougher tailings addition butyl xanthate (e) 30~40g, 2#Oily (d) 10~
15g stirrings are sized mixing and carry out sulphur and scan, and separate sulphur scavenger concentrate (14) and true tailings (16).
2. technique according to claim 1, it is characterized in that the lean solution that described step A water loggings soluble copper washing is isolated
(3) agitation cycle is returned to use.
3. technique according to claim 1, it is characterized in that described step B phase analysis Two stage preferential flotations copper mine copper selected II
Copper cleaner tailings (8) and copper scan I copper and scan I concentrate (5) and return to copper roughing II and select again.
4. technique according to claim 1, it is characterized in that selected III mine tailing (9) of the copper of described step B copper selected III and
Selected I mine tailing (7) of copper of copper selected I returns or is selected again into copper selected II.
5. technique according to claim 1, it is characterized in that the copper that described step B copper scans II is scanned II concentrate (6) and returned
Copper is returned to scan I and select again.
6. technique according to claim 1, it is characterized in that the selected sulphur of described step C nominal group process flotation sulphur sulphur is selected
The sulphur that mine tailing (13) and sulphur are scanned is scanned mine tailing (14) return sulphur roughing and is selected again.
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| 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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