CN106391325B - A kind of method of zinc sulfide ore direct flotation - Google Patents
A kind of method of zinc sulfide ore direct flotation Download PDFInfo
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- CN106391325B CN106391325B CN201610842051.8A CN201610842051A CN106391325B CN 106391325 B CN106391325 B CN 106391325B CN 201610842051 A CN201610842051 A CN 201610842051A CN 106391325 B CN106391325 B CN 106391325B
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- ore
- flotation
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- 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
- B03D1/02—Froth-flotation processes
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- 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
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B1/00—Conditioning for facilitating separation by altering physical properties of the matter to be treated
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- 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
- B03D1/004—Organic compounds
- B03D1/012—Organic compounds containing sulfur
-
- 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
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/02—Collectors
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- 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
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention relates to a kind of methods of zinc sulfide ore direct flotation, ore pulp is made in zinc sulfide ore stone mill mine, pH values of pulp is adjusted to 6 ~ 11, collecting agent N- alkyl nabam, foaming agent terpenic oil is then added, it is not added or is added a small amount of activator copper sulphate, carries out flotation.The dosage without member direct flotation or significant decrease copper sulphate that zinc sulfide ore may be implemented using this method, is conducive to the FLOTATION SEPARATION of subsequent zinc sulphide Yu other metal sulfides.
Description
Technical field
The present invention relates to a kind of zinc sulfide mineral direct flotation method, may be implemented zinc sulfide mineral without it is member directly
Flotation belongs to Mineral Processing Engineering field.
Background technique
China's zinc resource is abundant, and zinc reserves occupy the 2nd, the world, and industrial 90% or so zinc yield derives from zinc sulfide ore
Object, zincblende and marmatite are the most common zinc sulfide minerals in nature.Pure zincblende is less in nature, most of
Zincblende usually all contains part iron tramp, the referred to as marmatite (Zn when iron content is greater than 6% in zincblendexFe1-xS),
The referred to as superelevation marmatite when iron content is greater than 20%.The color of zincblende be decided by lattice the type of impurity element and
Content, the usual higher zincblende color of iron content is deeper, and purer zincblende is then in light yellow.In addition, zincblende and iron dodge
It is also tended in zinc ore containing Determination of Rare-Expensive Elements such as indium, germanium, galliums.Therefore, zinc sulfide mineral also becomes recycling rare precious metal member
The important carrier mineral of element.However, zinc sulfide mineral native floatability is poor compared with other several nonferrous metal sulfide minerals,
Especially marmatite is difficult to the xanthate collectors direct flotation with short carbon chain.Therefore, zinc sulfide mineral it is preactivated at
For necessary link, it is widely used after copper sulphate for activation (200~1000g/t) again with the flotation of xanthate class, that is, is activated in production at present
Xanthate floatation.But there is also some unsatisfactory disadvantages for zincblende copper sulphate for activation xanthate flotation:
(1) copper sulphate has good activation effect to zincblende and the lower marmatite of some iron-content, still
It is significantly increased as the increase activation of zincblende iron content becomes more and more difficult and activator dosage, the work to marmatite
Ideal activation effect is often not achieved in change；
(2) practice have shown that, the zincblende after copper sulphate for activation is difficult to be suppressed, secondly, copper sulphate is as ore dressing field
A kind of wide spectrum activator to other nonferrous metal sulfide minerals even gangue mineral can also cause a degree of activation, these because
Element makes the separation of zincblende and other metal sulfides extremely difficult, such as copper-znic separation, Pb-Zn separation, causes zinc concentrate product
Position is not high and metal mutually contains problem；
(3) addition of copper sulphate undoubtedly increases beneficiation cost.
For these reasons, the present invention provides a kind of direct flotation method of simple and easy zinc sulfide mineral, using this
The dosage without member direct flotation or significant decrease copper sulphate of zinc sulfide mineral may be implemented in method.Due to there is no copper sulphate
Activating effect, the method for floating are advantageous to the FLOTATION SEPARATION of zinc sulfide ore Yu other metal sulfides.
Summary of the invention
The purpose of the present invention is to provide a kind of method of zinc sulfide mineral direct flotation, the method without member,
Or significantly reduce the dosage of copper sulphate.
The present invention is achieved through the following technical solutions:
A kind of method of zinc sulfide mineral direct flotation, by following steps: weight hundred is made in vulcanization zinc ore crude ore grinding
Dividing concentration is 25 ~ 40% ore pulp, wherein the mass percent that the miberal powder of -0.074mm accounts for total miberal powder is 80~95%, makes to form mine
The abundant monomer dissociation of object, is added acid or aqueous slkali adjusts pH values of pulp to 6 ~ 11, is then added by the dosage of 50 ~ 100g of raw ore per ton
Collecting agent stirring action 2 minutes, then terpenic oil foaming agent stirring action is added after 2 minutes by the dosage of 20~30g of raw ore per ton
Start flotation.
Zinc grade is 1~6% in the vulcanization zinc ore crude, and iron content is less than 15wt% in zinc sulfide mineral.
The bronsted lowry acids and bases bronsted lowry solution is respectively hydrochloric acid and calcium hydroxide solution.
The collecting agent is N- alkyl nabam, and molecular structural formula is as follows:
X represents the alkyl of 4~12 carbon atoms in formula, and the particular number of carbon atom can be according to the tool of ore dressing in alkyl X
The experiment of body object determines.
The collecting is reused after selecting complex ore that can also add a small amount of copper sulphate (< 100 g/t) activation individual difficulties
Flotation.
The present invention has the advantages that:
(1) original ore property is regarded, be not necessarily to member using this method flotation zincblende or substantially reduces copper sulphate dosage, is eliminated
Or it significantly reduces using copper sulphate for activation and bring a series of problems；
(2) compared with traditional copper sulphate for activation xanthate floatation, which has selectivity height, collecting agent
The features such as dosage is few, flotation speed is fast, flotation flowsheet is simple, it is especially very weak to pyrite collecting ability to be conducive to zinc sulphur content
From.
Specific embodiment
Embodiment 1
Ore to be selected is Sichuan lead zinc sulphur ore, 90wt% in ore leaded 1.45wt%, 4.11wt% containing zinc and Zn content
It is zincblende above, iron content 1.68wt% in zincblende.The ore pulp that concentration expressed in percentage by weight is 25% is made in the ore ore grinding,
In the miberal powders of -200 mesh account for total miberal powder 85wt%, it is 6~7 stirring action 2 minutes that addition hydrochloric acid solution, which adjusts pH values of pulp, then plus
Enter collecting agent molybdenum didodecyl dithiophosphate carbamic acid sodium 60g/t to act on 2 minutes, adds terpenic oil foaming agent 20g/t and act on 2 points
Start flotation 6 minutes after clock, lead zinc recovery is up to 86% or more.
Embodiment 2
Ore to be selected is Yunnan multi-metal sulfide, and leaded, zinc, iron, sulphur, indium, gallium, germanium etc. in ore, mineral contain
Amount has the marmatite of 8.5wt% or so, and iron content is 10.5wt% in marmatite.It is dense that weight percent is made in the ore ore grinding
The ore pulp that degree is 40% is added calcium hydroxide solution adjusting pH to 10~11 and stirs wherein the miberal powder of -200 mesh accounts for total miberal powder 90wt%
The effect of mixing 2 minutes, addition copper sulphate 50g/t are activated 2 minutes, and collecting agent molybdenum didodecyl dithiophosphate carbamic acid sodium is then added
90g/t is added after terpenic oil foaming agent 25g/t is acted on 2 minutes and is started flotation 6 minutes, and lead zinc recovery is up to 80% or more.
Embodiment 3
To ore dressing be Yunnan low-grade vulcanized lead zinc ore, ore 1.61wt% containing zinc, lead 3.25wt%, iron 6.32wt%,
The sulfide of middle zinc and lead accounts for 90wt% or more, and the ore pulp that concentration expressed in percentage by weight is 33% is made in ore grinding, wherein the miberal powder of -200 mesh
Total miberal powder 95wt% is accounted for, calcium hydroxide solution is added and adjusts pH to 9~10 stirring action 2 minutes, collecting agent normal-butyl is then added
Nabam 70g/t is added after terpenic oil foaming agent 30g/t is acted on 2 minutes and is started flotation 6 minutes, and lead zinc returns
Yield is up to 80% or more.
Claims (7)
1. a kind of method of zinc sulfide ore direct flotation, comprising the following steps:
(1) ore pulp is made in vulcanization zinc ore crude ore grinding；
(2) adjusting pH values of pulp is 6 ~ 11；
(3) it is added collecting agent stirring action 2 minutes by the dosage of 50 ~ 100g of raw ore per ton, then by 20~30g's of raw ore per ton
Flotation after dosage is added foaming agent stirring action 2 minutes；
Step (3) collecting agent is molybdenum didodecyl dithiophosphate carbamic acid sodium or normal-butyl nabam.
2. according to method described in right 1, which is characterized in that the concentration expressed in percentage by weight of ore pulp is 25~40% in step (1),
In -0.074mm miberal powder account for total miberal powder mass percent be 80~95%.
3. according to method described in right 1, which is characterized in that step (2) acid solution or aqueous slkali adjust pH values of pulp.
4. according to method described in right 3, which is characterized in that acid solution is hydrochloric acid solution, and aqueous slkali is calcium hydroxide solution.
5. according to method described in right 1, which is characterized in that step (3) foaming agent is terpenic oil.
6. according to method described in right 1, which is characterized in that step (3) is also added copper sulphate and activated.
7. according to method described in right 6, which is characterized in that dosage < 100g/t of copper sulphate.
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| CN201610842051.8A CN106391325B (en) | 2016-09-23 | 2016-09-23 | A kind of method of zinc sulfide ore direct flotation |
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| CN201610842051.8A CN106391325B (en) | 2016-09-23 | 2016-09-23 | A kind of method of zinc sulfide ore direct flotation |
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| CN106391325B true CN106391325B (en) | 2019-02-05 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106861922B (en) * | 2017-04-06 | 2019-05-07 | 新疆紫金锌业有限公司 | A kind of beneficiation method of zinc sulfide ore |
| CN110064511B (en) * | 2019-04-12 | 2021-12-07 | 东北大学 | Method for controlling oxidation-flotation recovery of sphalerite |
| CN111530638B (en) * | 2020-05-09 | 2021-04-16 | 昆明理工大学 | Method for deactivating, activating and flotation and recycling zinc sulfide ores in copper-lead flotation tailings |
Citations (7)
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| RU2054970C1 (en) * | 1992-05-06 | 1996-02-27 | Уральский Научно-Исследовательский И Проектный Институт Медной Промышленности | Collector for sulfur copper-zinc ores flotation |
| CN101816978A (en) * | 2010-05-26 | 2010-09-01 | 中南大学 | Method for lead-zinc oxide ore flotation |
| CN102371206A (en) * | 2010-08-19 | 2012-03-14 | 北京有色金属研究总院 | Process for treating multi-metal complex sulphide ores containing carbon, lead and zinc |
| CN102441499A (en) * | 2011-12-12 | 2012-05-09 | 昆明理工大学 | Flotation method for lead and zinc sulfide ores |
| CN102513217A (en) * | 2012-01-01 | 2012-06-27 | 广西冶金研究院 | Method for flotation separation of zinc and sulfur minerals |
| CN103203288A (en) * | 2013-04-11 | 2013-07-17 | 北京矿冶研究总院 | Method for flotation of lead sulfide ore |
| CN103433145A (en) * | 2007-02-07 | 2013-12-11 | 氰特技术公司 | Novel dithiocarbamate collectors and their use in the beneficiation of mineral ore bodies |
-
2016
- 2016-09-23 CN CN201610842051.8A patent/CN106391325B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2054970C1 (en) * | 1992-05-06 | 1996-02-27 | Уральский Научно-Исследовательский И Проектный Институт Медной Промышленности | Collector for sulfur copper-zinc ores flotation |
| CN103433145A (en) * | 2007-02-07 | 2013-12-11 | 氰特技术公司 | Novel dithiocarbamate collectors and their use in the beneficiation of mineral ore bodies |
| CN101816978A (en) * | 2010-05-26 | 2010-09-01 | 中南大学 | Method for lead-zinc oxide ore flotation |
| CN102371206A (en) * | 2010-08-19 | 2012-03-14 | 北京有色金属研究总院 | Process for treating multi-metal complex sulphide ores containing carbon, lead and zinc |
| CN102441499A (en) * | 2011-12-12 | 2012-05-09 | 昆明理工大学 | Flotation method for lead and zinc sulfide ores |
| CN102513217A (en) * | 2012-01-01 | 2012-06-27 | 广西冶金研究院 | Method for flotation separation of zinc and sulfur minerals |
| CN103203288A (en) * | 2013-04-11 | 2013-07-17 | 北京矿冶研究总院 | Method for flotation of lead sulfide ore |
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