CN108237021A - A kind of regulation and control method of zinc oxide flotation froth - Google Patents
A kind of regulation and control method of zinc oxide flotation froth Download PDFInfo
- Publication number
- CN108237021A CN108237021A CN201810042979.7A CN201810042979A CN108237021A CN 108237021 A CN108237021 A CN 108237021A CN 201810042979 A CN201810042979 A CN 201810042979A CN 108237021 A CN108237021 A CN 108237021A
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- Prior art keywords
- foam
- antifoaming agent
- combination
- zinc oxide
- cylindrical space
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Classifications
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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
- B03D1/028—Control and monitoring of flotation processes; computer models therefor
-
- 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
- B03D1/014—Organic compounds containing phosphorus
-
- 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
Abstract
The invention discloses a kind of regulation and control methods of zinc oxide flotation froth, belong to technical field of beneficiation, are made of following steps：(1) combination antifoaming agent is prepared：By weight tributyl phosphate：Lauryl mercaptan：Kerosene=20 30：3‑6：12 ratio mixing, it is soluble in water, it is made into the solution that weight concentration is 20%, (2) solution for being made into step (1) stirs 30 minutes, until forming uniform and stable weak yellow liquid, the combination antifoaming agent adjustment foam being formulated is added in (3) floatation process, is realized by the additive amount of control combination antifoaming agent and foam volume and foaming structure is controlled in zinc oxide floatation process, so that mineral are more effectively enriched with, concentrate quality is improved.
Description
Technical field
The present invention relates to technical field of beneficiation, the regulation and control method of specifically a kind of zinc oxide flotation froth, suitable for oxidation
Zinc sorts middle foam control.
Technical background
It is well known that the mining conventional method of vulcanization of zinc is easier to be enriched with, and foam volume is easy to control, foaming structure
It is good so that floatation indicators are preferable.But over time, the demand of production becomes larger, and the vulcanization ore resources of zinc are petered out,
Zinc oxide ore resource grade is low, and foam volume is difficult to control greatly during sorting, and foaming structure is poor so that and mineral processing index is undesirable,
A large amount of zinc oxide ore resource is discarded, therefore make ore deposit to the control of foam volume and foaming structure in zinc oxide floatation process
Object effectively enrichment is of great significance.
Zinc oxide ore is the secondary ore of zinc, is mainly deposited in forms such as smithsonite, smithsonite, willemite, marionite, zincites
.Gangue mineral is mainly calcite, dolomite, quartz, gypsum, clay, iron oxide and iron hydroxide, the general mud of zinc oxide ore
Change serious, sludge surface area is big, and fine size, adsorption capacity is strong, consumes a large amount of medicaments, and be enriched with collecting often with mineral together
Absorption is on foam so that foaming structure is deteriorated and then influence floatation indicators.Generally using vulcanization-ammonium method flotation, vulcanization-ammonium method
First by zinc oxide surface desliming, vulcanized sodium is added in later and activates and adjusts pH to 10-11.5 or so, its essence is it is ionized out
The sulphion come reacts to form sulfide film with Zinc oxide minerals, and sulphion is attached on mineral surfaces zinc atom, in
It is that mineral surfaces cure, collecting is carried out to zinc oxide adding in primary amine collector.But since primary amine collector has blistering
Property, and influenced by mud sharper, so that foam volume is difficult to control in floatation process, and foaming structure is bad so that floating
Select index error.
Invention content
The purpose of the present invention is to provide a kind of regulation and control methods of zinc oxide flotation froth, can realize in zinc oxide flotation
Foam volume and foaming structure are controlled in the process.
Above-mentioned purpose that the invention is realized by the following technical scheme：A kind of regulation and control method of zinc oxide flotation froth, by such as
Lower step composition：
(1) by weight tributyl phosphate：Lauryl mercaptan：Kerosene=20-30：3-6：The ratio mixing of 1-2, is dissolved in water
In, the solution that weight concentration is 20% is made into,
(2) solution for being made into (1) stirs 30 minutes, until forming uniform and stable weak yellow liquid,
(3) when the combination antifoaming agent adjustment foam being formulated is added in floatation process, for the ease of observing foam floor height
Degree variation and observation foaming structure variation, are improved the flotation cell intermediate bulkhead of flotation device to equal with groove body both sides using baffle
A cylindrical space is highly formed to regulate and control foam, after various medicaments are added in this cylindrical space, fixed aeration quantity inflation,
The blister formation on ore pulp surface in cylindrical space, foaming structure and foam layer height variation are observed, if in column after ore pulp inflation
The space inner foam layer rate of climb is steady and eventually tends towards stability and will not be unable to control and overflow cylindrical space, froth bed upper strata
Foam from large to small, is become fragile, outside bubble removing top, other bubble surfaces are mineralized substantially, and froth bed and foam are tentatively reached by viscous
To after this standard, show that the combination antifoaming agent added in is enough, record foam layer height, stop inflating and recording froth bed
Altitude decay is to the required time t of original mid-height1/2For characterizing the stability of foam, later again to combining antifoaming agent
Accurate dosage tested, on the basis of original to combination antifoaming agent dosage regulated and controled to obtain multigroup half-life period t1/2
It is compared, takes half-life period t1/2Maximum point is combination antifoaming agent optimum amount point.If ore pulp raising speed on froth bed after inflation
It spends and is unable to control and constantly overflows cylindrical space soon, froth bed upper foam is big and constantly ruptures, and surface layer viscous foam is in the majority,
Show that the combination antifoaming agent dosage added in is insufficient, then need to continue the combination antifoaming agent that addition is prepared and be aided with to spray water to froth bed
It is eluted and carries out half-life period t after froth bed tends towards stability and basically reaches standard with foaming structure1/2Test.
Unless otherwise stated, percentage of the present invention is that the sum of mass percent, each component content percentage is
100%.
The present invention's has the prominent advantages that：
The low surface tension that is combined using tributyl phosphate and lauryl mercaptan with kerosene and be insoluble in water physical property it is effective
The film of established foam is made to be in an unsure state and defoam rapidly, and being aided with froth bed elution subtracts blibbing diameter
Small, bubble surface area increases, and is conducive to the recycling of material, improves the rate of recovery, can also control the thickness of froth bed and eliminate a large amount of
Mud steeps so that mineral are more effectively enriched with, and improvement foaming structure improves concentrate quality.
Specific embodiment
Technical scheme of the present invention is further described by the following examples.
Embodiment 1
The example of the regulation and control method of zinc oxide flotation froth of the present invention, comprises the steps of：
(1) combination antifoaming agent is prepared：By weight tributyl phosphate：Lauryl mercaptan：Kerosene=20：5：1 ratio mixing,
It is soluble in water, the solution that weight concentration is 20% is made into,
(2) solution for being made into (1) stirs 30 minutes, until forming uniform and stable weak yellow liquid,
(3) when the combination antifoaming agent adjustment foam being formulated is added in floatation process, for the ease of observing foam floor height
Degree variation and observation foaming structure variation, are improved the flotation cell intermediate bulkhead of flotation device to equal with groove body both sides using baffle
A cylindrical space is highly formed to regulate and control foam, after various medicaments are added in this cylindrical space, fixed aeration quantity inflation,
The blister formation on ore pulp surface in cylindrical space, foaming structure and foam layer height variation are observed, if in column after ore pulp inflation
The space inner foam layer rate of climb is steady and eventually tends towards stability and will not be unable to control and overflow cylindrical space, froth bed upper strata
Foam from large to small, is become fragile, outside bubble removing top, other bubble surfaces are mineralized substantially, and froth bed and foam are tentatively reached by viscous
To after this standard, show that the combination antifoaming agent added in is enough, record foam layer height, stop inflating and recording froth bed
Altitude decay is to the required time t of original mid-height1/2For characterizing the stability of foam, later again to combining antifoaming agent
Accurate dosage tested, on the basis of original to combination antifoaming agent dosage regulated and controled to obtain multigroup half-life period t1/2
It is compared, takes half-life period t1/2Maximum point is combination antifoaming agent optimum amount point.If ore pulp raising speed on froth bed after inflation
It spends and is unable to control and constantly overflows cylindrical space soon, froth bed upper foam is big and constantly ruptures, and surface layer viscous foam is in the majority,
Show that the combination antifoaming agent dosage added in is insufficient, then need to continue the combination antifoaming agent that addition is prepared and be aided with to spray water to froth bed
It is eluted and carries out half-life period t after froth bed tends towards stability and basically reaches standard with foaming structure1/2Test.
Embodiment 2
Second example of the regulation and control method of zinc oxide flotation froth of the present invention, comprises the steps of：
(1) combination antifoaming agent is prepared：By weight tributyl phosphate：Lauryl mercaptan：Kerosene=16：4：1.5 ratio is mixed
It closes, it is soluble in water, the solution that weight concentration is 20% is made into,
(2 is same as Example 1 with (3) for step.
Embodiment 3
The third example of the regulation and control method of zinc oxide flotation froth of the present invention, comprises the steps of：
(1) combination antifoaming agent is prepared：By weight tributyl phosphate：Lauryl mercaptan：Kerosene=30：2：1 ratio mixing,
It is soluble in water, the solution that weight concentration is 20% is made into,
(2 is same as Example 1 with (3) for step.
Embodiment 4
Application example of the present embodiment for the regulation and control method of zinc oxide flotation froth of the present invention.By following steps group
Into：
Raw mineral materials：
Yunnan zinc oxide ore is mainly smithsonite, mineralogical property：Metal sulfide ore is zincblende, square lead in raw ore
Ore deposit, pyrite；Metal oxide mineral has smithsonite, cerussite；Gangue mineral is mainly calcite, dolomite, quartz.Mineral into
It is divided into：Pb0.62%, Zn7.08%, carbonic acid Zn content 6.14% vulcanize Zn content 0.62%, other Zn contents 0.32%.
Operating procedure：
1st, 300g is sampled, -200 mesh of grinding fineness accounts for 80%.
2nd, regime of agent and operating condition：Copper sulphate 200g/t activation is added in, the rear butyl xanthate 200g/t that adds in is floatingly selected
Zinc sulphide and vulcanized lead use sodium carbonate to stir and adjust within 10 minutes pH value as 9-10, adds in 1000g/t calgons and make later
For inhibitor, combined capturing and collecting agent 300g/t sizes mixing and inflates after ten minutes, combines the dosage of antifoaming agent by adjusting to adjust foam
Roughing is carried out after layer height and foaming structure, selected addition calgon 200g/t sweeps an addition calgon 200g/t,
Combined capturing and collecting agent 100g/t sizes mixing and inflates after five minutes, combines the dosage of antifoaming agent by adjusting to adjust foam layer height and bubble
It carrying out sweeping one after foam structure, adds in calgon 200g/t later, combined capturing and collecting agent 50g/t sizes mixing and inflates after five minutes, then
It carries out sweeping two after adjusting foam layer height and foaming structure by the dosage of adjusting combination antifoaming agent, obtains zinc concentrate yield
20.06%, grade 24.2%, tailing 1.81%, the rate of recovery 77.04% obtained preferable floatation indicators.The combination disappears
Infusion is used after the combination antifoaming agent that embodiment 1-3 is prepared is mixed.
Experiment uses sodium carbonate as regulator adjusting pH value for 9-10, with hexa metaphosphoric acid in the case of No severing mud
Sodium, by the use of the medicament that one or more of anion chelating types are composed as collecting agent, is disappeared as inhibitor with several higher alcohols
The combination of infusion can effectively overcome the problems, such as that foam volume is big and foaming structure is bad.
Claims (3)
- A kind of 1. regulation and control method of zinc oxide flotation froth, which is characterized in that be made of following steps：(1) combination antifoaming agent is prepared：By weight tributyl phosphate：Lauryl mercaptan：Kerosene=20-30：3-6：The ratio of 1-2 is mixed It closes, it is soluble in water, the solution that weight concentration is 20% is made into,(2) solution for being made into step (1) stirs 30 minutes, until forming uniform and stable weak yellow liquid,(3) when the combination antifoaming agent adjustment foam being formulated is added in floatation process, using baffle by the flotation cell of flotation device Intermediate bulkhead be increased to groove body both sides equal height, form cylindrical space and regulate and control foam, in this cylindrical space After adding various medicaments, fixed aeration quantity is inflated, and observes blister formation, foaming structure and the foam on ore pulp surface in cylindrical space Layer height changes, if steady in the cylindrical space inner foam layer rate of climb after ore pulp inflation and eventually tend towards stability will not can not It controlling and overflows cylindrical space, froth bed upper foam from large to small, is become fragile by viscous, outside bubble removing top, other bubble surfaces Substantially it is mineralized, after froth bed and foam tentatively reach this standard, shows that the combination antifoaming agent added in is enough, record bubble Foam layer height stops inflating and recording foam layer height decaying to the required time t of original mid-height1/2It is steeped for characterizing The stability of foam later again tests the accurate dosage for combining antifoaming agent, and combination antifoaming agent is used on the basis of original Amount is regulated and controled to obtain multigroup half-life period t1/2It is compared, takes half-life period t1/2Maximum point is combination antifoaming agent optimum amount Point, if the froth bed rate of climb is too fast after inflation is unable to control and constantly overflows cylindrical space for ore pulp, froth bed upper foam Big and continuous rupture, surface layer viscous foam is in the majority, shows that the combination antifoaming agent dosage added in is insufficient, then needs to continue addition preparation Combination antifoaming agent and be aided with to froth bed water spray eluted until froth bed tends towards stability and foaming structure basically reaches mark T is carried out after standard1/2Test.
- 2. zinc oxide flotation froth according to claim 1 regulates and controls method, which is characterized in that described to prepare combination antifoaming agent It is by weight tributyl phosphate：Lauryl mercaptan：Kerosene=20：5：1 ratio mixing, soluble in water, being made into weight concentration is 20% solution.
- 3. the application of zinc oxide flotation froth regulation and control method according to claim 1, which is characterized in that the zinc oxide ore For smithsonite, mineralogical property：Metal sulfide ore is zincblende, galena, pyrite in raw ore；Metal oxide mineral has water chestnut zinc Ore deposit, cerussite；Gangue mineral is mainly calcite, dolomite, quartz.Mineralogical composition is：Pb 0.62%, Zn 7.08%, carbon Sour Zn content 6.14% vulcanizes Zn content 0.62%, other Zn contents 0.32%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810042979.7A CN108237021A (en) | 2018-01-17 | 2018-01-17 | A kind of regulation and control method of zinc oxide flotation froth |
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| CN201810042979.7A CN108237021A (en) | 2018-01-17 | 2018-01-17 | A kind of regulation and control method of zinc oxide flotation froth |
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Cited By (3)
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| CN110976101A (en) * | 2019-11-18 | 2020-04-10 | 天地（唐山）矿业科技有限公司 | Foam layer characteristic-based method for on-line assessment and regulation of coal flotation process |
| CN110983068A (en) * | 2019-12-25 | 2020-04-10 | 昆明冶金研究院有限公司 | Defoaming agent and application thereof in zinc oxide concentrate leaching |
| CN112221717A (en) * | 2020-10-26 | 2021-01-15 | 厦门紫金矿冶技术有限公司 | Zinc oxide ore flotation defoaming agent and application thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110976101A (en) * | 2019-11-18 | 2020-04-10 | 天地（唐山）矿业科技有限公司 | Foam layer characteristic-based method for on-line assessment and regulation of coal flotation process |
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| CN110983068B (en) * | 2019-12-25 | 2022-08-19 | 昆明冶金研究院有限公司 | Defoaming agent and application thereof in zinc oxide concentrate leaching |
| CN112221717A (en) * | 2020-10-26 | 2021-01-15 | 厦门紫金矿冶技术有限公司 | Zinc oxide ore flotation defoaming agent and application thereof |
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Application publication date: 20180703 |