AU2021105634A4 - The Homogeneous Activation Flotation method for Copper-lead-zinc Polymetallic Sulfide Ore - Google Patents
The Homogeneous Activation Flotation method for Copper-lead-zinc Polymetallic Sulfide Ore Download PDFInfo
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- AU2021105634A4 AU2021105634A4 AU2021105634A AU2021105634A AU2021105634A4 AU 2021105634 A4 AU2021105634 A4 AU 2021105634A4 AU 2021105634 A AU2021105634 A AU 2021105634A AU 2021105634 A AU2021105634 A AU 2021105634A AU 2021105634 A4 AU2021105634 A4 AU 2021105634A4
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- Prior art keywords
- copper
- lead
- zinc
- flotation
- ions
- Prior art date
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- 238000005188 flotation Methods 0.000 title claims abstract description 34
- UXNBTDLSBQFMEH-UHFFFAOYSA-N [Cu].[Zn].[Pb] Chemical compound [Cu].[Zn].[Pb] UXNBTDLSBQFMEH-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 230000004913 activation Effects 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title claims abstract description 12
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 title claims abstract description 11
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 29
- 239000011707 mineral Substances 0.000 claims abstract description 29
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims abstract description 12
- PPUARQXOOBRUNI-UHFFFAOYSA-N [S--].[S--].[S--].[Cu++].[Zn++].[Pb++] Chemical compound [S--].[S--].[S--].[Cu++].[Zn++].[Pb++] PPUARQXOOBRUNI-UHFFFAOYSA-N 0.000 claims abstract description 11
- USFZMSVCRYTOJT-UHFFFAOYSA-N Ammonium acetate Chemical compound N.CC(O)=O USFZMSVCRYTOJT-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000005695 Ammonium acetate Substances 0.000 claims abstract description 7
- 229940043376 ammonium acetate Drugs 0.000 claims abstract description 7
- 235000019257 ammonium acetate Nutrition 0.000 claims abstract description 7
- 229910052569 sulfide mineral Inorganic materials 0.000 claims abstract description 7
- 239000012991 xanthate Substances 0.000 claims abstract description 7
- 235000019270 ammonium chloride Nutrition 0.000 claims abstract description 6
- 239000012141 concentrate Substances 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 229910000365 copper sulfate Inorganic materials 0.000 claims abstract description 3
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims abstract description 3
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000003153 chemical reaction reagent Substances 0.000 claims description 4
- SGQLUUBYYBASTD-UHFFFAOYSA-N azanium butoxy-butylsulfanyl-oxido-sulfanylidene-lambda5-phosphane Chemical compound [NH4+].CCCCOP([O-])(=S)SCCCC SGQLUUBYYBASTD-UHFFFAOYSA-N 0.000 claims description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 18
- 229910052802 copper Inorganic materials 0.000 abstract description 18
- 239000010949 copper Substances 0.000 abstract description 18
- 150000002500 ions Chemical class 0.000 abstract description 16
- 229910052950 sphalerite Inorganic materials 0.000 abstract description 16
- FPIIKJRRXOPKIB-UHFFFAOYSA-N copper;sulfanylidenelead Chemical compound [Cu].[Pb]=S FPIIKJRRXOPKIB-UHFFFAOYSA-N 0.000 abstract description 7
- 239000011133 lead Substances 0.000 abstract description 6
- PTFCDOFLOPIGGS-UHFFFAOYSA-N Zinc dication Chemical compound [Zn+2] PTFCDOFLOPIGGS-UHFFFAOYSA-N 0.000 abstract description 5
- 238000004090 dissolution Methods 0.000 abstract description 5
- 238000011084 recovery Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 3
- 238000010668 complexation reaction Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 7
- 229910052949 galena Inorganic materials 0.000 description 7
- XCAUINMIESBTBL-UHFFFAOYSA-N lead(ii) sulfide Chemical compound [Pb]=S XCAUINMIESBTBL-UHFFFAOYSA-N 0.000 description 7
- 239000011701 zinc Substances 0.000 description 7
- 229910052725 zinc Inorganic materials 0.000 description 7
- 229910052951 chalcopyrite Inorganic materials 0.000 description 6
- DVRDHUBQLOKMHZ-UHFFFAOYSA-N chalcopyrite Chemical compound [S-2].[S-2].[Fe+2].[Cu+2] DVRDHUBQLOKMHZ-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000005012 migration Effects 0.000 description 5
- 238000013508 migration Methods 0.000 description 5
- 229910052981 lead sulfide Inorganic materials 0.000 description 4
- 229940056932 lead sulfide Drugs 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 229910052948 bornite Inorganic materials 0.000 description 3
- -1 iron ions Chemical class 0.000 description 3
- 239000012190 activator Substances 0.000 description 2
- 229910052947 chalcocite Inorganic materials 0.000 description 2
- OMZSGWSJDCOLKM-UHFFFAOYSA-N copper(II) sulfide Chemical compound [S-2].[Cu+2] OMZSGWSJDCOLKM-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 1
- XOCUXOWLYLLJLV-UHFFFAOYSA-N [O].[S] Chemical compound [O].[S] XOCUXOWLYLLJLV-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910001431 copper ion Inorganic materials 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004137 mechanical activation Methods 0.000 description 1
- 150000001455 metallic ions Chemical class 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/018—Mixtures of inorganic and organic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2203/00—Specified materials treated by the flotation agents; specified applications
- B03D2203/02—Ores
Abstract
The invention is a homogeneous activation flotation method for copper-lead-zinc sulfide ore,
belonging to the technical field of mineral processing. The beneficiation steps are as follows:
Firstly, water, stock liquors of ammonium acetate and ammonium chloride prepared in
proportion, copper-lead-zinc polymetallic sulfide ore are added into the mill. Then these
substances are grinded together until most of copper-lead-zinc sulfide minerals liberate.
Grinding products are fed into the flotation machine with adding copper sulfate and a certain
amount of xanthate and aerofloats. Conventional flotation is used to obtain bulk flotation
concentrate of copper-lead-zinc polymetallic sulfide minerals . The method of the invention
uses ammonium acetate and ammonium chloride to coordinate with copper, lead and zinc ions
to produce complexation and coordination, which promote the dissolution and release of copper
and lead ions, form polynuclear complex ions, and promote the selective activation of
sphalerite, and synchronously avoid the floatability of copper-lead sulfide minerals to be
affected. Thus, the directed transfer of copper, lead and zinc ions in the grinding process and
the recovery of bulk flotation can be improved.
Description
The Homogeneous Activation Flotation methodfor Copper-lead-zinc Polymetallic
Sulfide Ore
The invention belongs to the technical field of beneficiation, relating to a homogeneous
activation flotation method for copper-lead-zinc polymetallic sulfide ore.
Copper, lead and zinc are important basic raw material and copper-lead-zinc polymetallic
sulfide ore is the main source of extracting copper, lead and zinc. Chalcopyrite and
galena have good floatability, while the floatability of sphalerite and marmatite is
relatively poor. Therefore, the latter can be activated by adding copper and lead ions to
improve their flotation. The flotation recovery processes of copper-lead-zinc sulfide ores
include differential flotation, bulk flotation, and partially bulk flotation, etc. In many
separation processes, bulk concentrate is generally obtained first. Besides, the refractor
copper-lead-zinc sulfide ore with low-grade, fine-disseminated, complex-symbiosis and
oxygen-sulfur mixture are difficult to separate. Even if the separation effect is good, the
large use of despressors and complex processes lead to high beneficiation costs. Thus, the
some concentrators only recover and sell mixed concentrate without separation. There are
studies on the separation of copper-lead-zinc sulfide minerals, while the research on
improving the mixed concentrate recovery is few, which mainly focuses on reagent
selection and combination, and optimization of flotation flowsheet. However, before the
flotation, there is less research on the regulation of surface property between polymetallic
minerals, which restricts the flotation effect.
Grinding affects the flotation of polymetallic minerals, which decides the liberation and
the surface properties of minerals. However, there are few reports on improving the
flotation of copper-lead-zinc polymetallic minerals by regulating the mineral surface.
Except for discovering that mechanical activation can change the lattice constant and
distortion of mineral crystals, little new scientific basis has been found for such
regulation.
Copper-lead-zinc sulfide minerals, such as chalcopyrite, bornite, chalcocite, galena,
sphalerite, and marmatite, can release copper, lead, zinc, and iron ions in grinding. These
ions can be stable adsorbed on different mineral surfaces during collision: Copper ions
from chalcopyrite, bornite, or chalcosine will migrate to sphalerite and galena surfaces;
lead ions from galena to sphalerite and chalcopyrite; zinc ions from zinc-bearing minerals
to chalcopyrite and galena surfaces. Therefore, the mutual migration of elements on the
mineral surfaces during grinding results in different surfaces with homogeneity and
similar elements. However, their migration degree is different: Copper and lead ions can
be transferred to sphalerite surface to a great extent, while zinc and lead ions to
chalcopyrite, bornite, chalcocite, and galena surfaces or copper's migration to galena
surface is opposite. However, regardless of the degree, because copper sulfide minerals
and lead sulfide minerals themselves have good floatability performance, we should
avoid the transfer of these ions to the surface of copper and lead sulfide minerals, to avoid
the excellent natural floatability of these minerals affected. Besides, the floatability of
zinc-bearing sulfide minerals is poor. In order to maximize the activation of sphalerite,
every effort should be made to promote the migration of copper-lead ions to the
sphalerite surface, so as to determine the subsequent improvement of the copper-lead- zinc bulk flotation index during the grinding stage. The above analysis shows that the ways to improve the bulk flotation index of copper-lead-zinc polymetallic sulfide ore include: Reasonable methods should be used to promote the release of copper and lead ions and transfer as much of these ions as possible to the sphalerite surface with poor natural floatability. At the same time, reasonable methods should be used to eliminate the influence of copper and lead ions on the copper and lead sulfide minerals with good natural floatability. This is an important way to improve the bulk flotation index of copper-lead-zinc polymetallic sulfide ore. Therefore, the invention uses homogenization effect to regulate the dissolution, release, migration, and activation of metallic ions, which realizes the efficient bulk flotation of copper-lead-zinc sulfide ore. This invention can reduce the amount of conventional flotation activators for sphalerite and improve the technical and economic indicators of bulk flotation.
The purpose of the invention is to provide a homogenous activation flotation method for
copper-lead-zinc polymetallic sulfide minerals. The copper and lead ions released by
copper-lead-zinc sulfide minerals dissolved in the grinding process can be effectively
controlled to avoid the influence of copper sulfide and lead sulfide minerals, and to
promote the release of copper and lead ions and their transfer to the sphalerite surface. In
this way, the maximum synchronous activation of sphalerite can be achieved, and the
flotation of copper-lead sulfide minerals can be ensured at the same time, so as to further
improve the technical and economic indicators of bulk flotation of copper-lead-zinc
sulfide minerals.
The technical proposal of the invention is as follows:
1. Ammonium acetate and ammonium chloride with a mass ratio of 5:1 to 1:3 should be
mixed with water to stir to prepare the stock liquids of reagents.
2. Copper-lead-zinc polymetallic sulfide ore, water, and the stock liquors in Step (1) are
added into the mill, where the mixed amount of ammonium acetate and ammonium
chloride is 10 to 40 g/t. The mass concentration of ore in the ball mill is 80 ~ 85%, the
liberation degree of copper-lead-zinc sulfide minerals after grinding is not less than 85%,
and the ore less than 74 m accounts for 75~95% of the total mass of feed.
3. The pulp of Step (2) is introduced into flotation, with a mass concentration of 30-40 %.
After adding 40-150 g/t copper sulfate and 150-500 g/t xanthate and aerofloat with a
mass ratio of 4:1 to 1:2, the bulk flotation concentrate of copper-lead-zinc polymetallic
sulfide minerals can be obtained.
The xanthates used include butyl, ethyl, and high-carbon-chain xanthates; the aerofloats
used include Ammonium dibutyl dithiophosphate, 15#, 25#, and 31# aerofloats, etc.
Principles of the invention:
A certain proportion of ammonium acetate and ammonium chloride mixture can produce
synergistic ability, which complexed with copper, lead, and zinc ions released by the
dissolution of copper-lead-zinc sulfide minerals during the grinding. The formed copper
lead-ammonium polynuclear complex ions promote the dissolution of copper-lead ions
from copper-lead sulfide minerals and the activation of sphalerite. However, the
adsorption effect of zinc complex on copper-lead sulfide minerals is weak, which almost does not affect the floatability of copper-lead sulfide minerals, so the directional transfer of copper-lead-zinc ions can be controlled to some extent. Promoted the activation of sphalerite and avoided the depression of copper-lead sulfide minerals, which improves the recovery of copper-lead-zinc bulk flotation.
Beneficial effects of the invention:
1. This invention effectively promote the dissolution and release of copper and lead ions,
the synergistic effect between the agents and ions, and effectively enhance the activation
of sphalerite.
2. The effect of zinc ions on the floatability of copper-lead sulfide minerals can be
avoided to some extent.
3. The dosage of activator and other reagents for sphalerite can be reduced.
Claims (2)
1. Steps of homogeneous activation flotation method for copper-lead-zinc polymetallic
sulfide ore:
1.1 Ammonium acetate and ammonium chloride with a mass ratio of 5:1 to 1:3 are mixed
with water to stir to prepare the stock liquors of reagents.
1.2 Copper-lead-zinc polymetallic sulfide ore, water, and the stock liquors in Step (1) are
added into the mill, where the mixed amount of ammonium acetate and ammonium
chloride is 10 to 40 g/t. The mass concentration of ore in the ball mill is 80 ~ 85%, the
liberation degree of copper-lead-zinc sulfide minerals after grinding is not less than 85%,
and the ore less than 74 m accounts for 75~95% of the total mass of feed.
1.3 The pulp of Step (1.2) is introduced into flotation, with a mass concentration of 30-40
%. After adding 40-150 g/t copper sulfate and 150-500 g/t xanthate and aerofloat with a
mass ratio of 4:1 to 1:2, the bulk flotation concentrate of copper-lead-zinc polymetallic
sulfide minerals can be obtained.
2. According to the homogeneous activation flotation method of copper-lead-zinc
polymetallic sulfide ore of claim 1, the xanthates used include butyl, ethyl, and high
carbon-chain xanthates; the aerofloats used include Ammonium dibutyl dithiophosphate,
#, 25#, and 31# aerofloats, etc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2021105634A AU2021105634A4 (en) | 2021-08-17 | 2021-08-17 | The Homogeneous Activation Flotation method for Copper-lead-zinc Polymetallic Sulfide Ore |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2021105634A AU2021105634A4 (en) | 2021-08-17 | 2021-08-17 | The Homogeneous Activation Flotation method for Copper-lead-zinc Polymetallic Sulfide Ore |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2021105634A4 true AU2021105634A4 (en) | 2021-10-14 |
Family
ID=78007559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2021105634A Ceased AU2021105634A4 (en) | 2021-08-17 | 2021-08-17 | The Homogeneous Activation Flotation method for Copper-lead-zinc Polymetallic Sulfide Ore |
Country Status (1)
| Country | Link |
|---|---|
| AU (1) | AU2021105634A4 (en) |
-
2021
- 2021-08-17 AU AU2021105634A patent/AU2021105634A4/en not_active Ceased
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FGI | Letters patent sealed or granted (innovation patent) | ||
| MK22 | Patent ceased section 143a(d), or expired - non payment of renewal fee or expiry |