CN106733215B - A kind of preparation method of scheelite inhibitor - Google Patents

A kind of preparation method of scheelite inhibitor Download PDF

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Publication number
CN106733215B
CN106733215B CN201611117883.XA CN201611117883A CN106733215B CN 106733215 B CN106733215 B CN 106733215B CN 201611117883 A CN201611117883 A CN 201611117883A CN 106733215 B CN106733215 B CN 106733215B
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inhibitor
scheelite
mass concentration
product
mineral
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CN201611117883.XA
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CN106733215A (en
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魏宗武
陆建坚
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Guangxi University
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Guangxi University
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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
    • B03D1/018—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
    • B03D2201/00—Specified effects produced by the flotation agents
    • B03D2201/06—Depressants
    • 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
    • B03D2203/04—Non-sulfide ores

Abstract

A kind of preparation method of scheelite inhibitor, include the following steps: to be added to 130~150ml mass concentration after (1) mixes 50~55g tannic acid with 20~25g amion acetic acid as in 10% sodium hydroxide solution, it is heated to 80~85 DEG C and makes it dissolve rear constant temperature 2~2.5 hours, 25 DEG C are cooled to, the sodium carbonate liquor that 20~30ml mass concentration is 20% is slowly added at this temperature and obtains product 1.(2) vulcanized sodium that 20~30g gallic acid and 150~160ml mass concentration are 20% is configured to solution, it is coupled under the conditions of pH10.5~11 with product 1 and obtains product 2, the black powder that product 2 and nigrosine are coupled soluble easily in water under the conditions of pH11.5~12 is the inhibitor.Inhibitor of the present invention can have good inhibiting effect to scheelite, not generate inhibiting effect to Mo-bearing Iron Ores mineral, dosing is few, nontoxic and pollution-free.

Description

A kind of preparation method of scheelite inhibitor
One, technical field
The present invention relates to a kind of preparation method of scheelite inhibitor, the inhibitor being prepared into contains suitable for white tungsten fine ore There are a large amount of Mo-bearing Iron Ores mineral, scheelite need to be inhibited, obtains the floatation process of Mo-bearing Iron Ores concentrate.
Two, background technique
In some Scheelite Deposits often contain a small amount of Mo-bearing Iron Ores, due to Mo-bearing Iron Ores floatability and scheelite floatability without Notable difference, the usually also flotation together by Mo-bearing Iron Ores while Scheelite Flotation form tungsten bulk concentrate, then in smelting Tungsten separation is carried out, Tungsten smelting product quality is not only influenced in this way, but also increase smelting cost, if using selective depression Agent inhibits scheelite, and then flotation flotation Mo-bearing Iron Ores again, not only can obtain molybdenum-iron concentrate and white tungsten fine ore, while can also Tungsten bulk concentrate economic value is improved, increases economic benefit for enterprise.
Three, summary of the invention
The purpose of the present invention is to provide one kind can inhibit scheelite, does not generate inhibiting effect to Mo-bearing Iron Ores mineral, makes The inhibitor that Mo-bearing Iron Ores mineral are separated with Scheelite Flotation.
The present invention reaches above-mentioned purpose using following technical scheme: a kind of preparation method of scheelite inhibitor, including such as Lower step:
(1) 130~150ml mass concentration is added to after mixing 50~55g tannic acid with 20~25g amion acetic acid is In 10% sodium hydroxide solution, it is heated to 80~85 DEG C and makes it dissolve rear constant temperature 2~2.5 hours, be cooled to 25 DEG C, it is warm herein It is slowly added to the sodium carbonate liquor that 20~30ml mass concentration is 20% under degree and obtains product 1.(2) by 20~30g gallic acid The vulcanized sodium for being 20% with 150~160ml mass concentration is configured to solution, is coupled under the conditions of pH10.5~11 with product 1 To product 2, the black powder that product 2 and nigrosine are coupled soluble easily in water under the conditions of pH11.5~12 is the inhibition Agent.
It is 25% by tungsten bulk concentrate tune ore pulp mass concentration when flotation, after then tune slurry pH is 9~9.5, presses 700~800g/t mineral are added the inhibitor, then plus enuatrol make Mo-bearing Iron Ores mineral collector and Mo-bearing Iron Ores mineral caught It receives,
The total dosage of inhibitor are as follows: 700~800g/t.
In use, the inhibitor is first configured to the aqueous solution that mass percentage concentration is 1~2%.
Unless otherwise stated, percentage of the present invention is mass percent, and the sum of each component content percentage is 100%.
Particularly advantage of the invention is:
1, there can be good inhibiting effect to scheelite mineral using the scheelite inhibitor that the present invention is prepared into, to molybdenum Iron ore mineral do not generate inhibiting effect, improve mineral resources comprehensive utilization.
2, medicament of the present invention dosage is few, nontoxic and pollution-free.
Four, specific embodiment
Hereinafter, the technical scheme of the present invention will be further described by specific examples.
Embodiment 1
One example of the preparation method of scheelite inhibitor of the present invention, comprising the following steps:
(1) it is that 10% sodium hydroxide is molten that 130ml mass concentration is added to after mixing 50g tannic acid with 20g amion acetic acid In liquid, it is heated to 80 DEG C and makes it dissolve rear constant temperature 2 hours, be cooled to 25 DEG C, it is dense to be slowly added to 20ml mass at this temperature Degree obtains product 1 for 20% sodium carbonate liquor.
(2) vulcanized sodium that 20g gallic acid and 150ml mass concentration are 20% is configured to solution, existed with product 1 Coupling obtains product 2 under the conditions of pH10.5, the black powder that product 2 and nigrosine are coupled soluble easily in water under the conditions of pH11.5 End is the inhibitor.
Embodiment 2
Another example of the preparation method of scheelite inhibitor of the present invention, comprising the following steps:
(1) it is that 10% sodium hydroxide is molten that 150ml mass concentration is added to after mixing 55g tannic acid with 25g amion acetic acid In liquid, it is heated to 85 DEG C and makes it dissolve rear constant temperature 2.5 hours, be cooled to 25 DEG C, be slowly added to 30ml mass at this temperature The sodium carbonate liquor that concentration is 20% obtains product 1.
(2) vulcanized sodium that 30g gallic acid and 160ml mass concentration are 20% is configured to solution, with product 1 in pH11 Under the conditions of coupling obtain product 2, be institute the black powder that product 2 and nigrosine are coupled soluble easily in water under the conditions of pH12 State inhibitor.
Embodiment 3
The present embodiment is application example of the scheelite inhibitor in tungsten separation of pulp concentrate.
1. raw mineral materials:
Raw materials used is white tungsten fine ore, contains WO in concentrate3For 45.20%, MOO310.12%, material phase analysis shows except white Outside tungsten, Mo-bearing Iron Ores, there are also a small amount of wolframite, molybdine molybdite and a small amount of impure mineral limonite, goethite, aluminum silicon mineral and calcareous mines Object.
2, with sodium carbonate tune pH values of pulp to 9~9.5, inhibitor 700g/t, enuatrol regime of agent and operating condition: are pressed 300g/t carries out collecting with Mo-bearing Iron Ores, the results showed that can be effectively by scheelite and Mo-bearing Iron Ores flotation point using the above agentia condition From, to mine contain WO3For 45.20%, MOO3Under the conditions of 10.12%, triple cleaning is scanned three times by one roughing, is contained MOO353.67%, contain WO32.53%, the Mo-bearing Iron Ores concentrate that the rate of recovery is 87.66% contains WO in product from failing349.64%.
Embodiment 4
The present embodiment is another application example of the scheelite inhibitor in tungsten separation of pulp concentrate.
1. raw mineral materials:
Raw materials used is white tungsten fine ore, contains WO in concentrate3For 49.73%, MOO313.67%, material phase analysis shows except white Outside tungsten, Mo-bearing Iron Ores, there are also a small amount of wolframite, molybdine molybdite and a small amount of impure mineral limonite, goethite, aluminum silicon mineral and calcareous mines Object.
2, with sodium carbonate tune pH values of pulp to 9~9.5, inhibitor 800g/t, enuatrol regime of agent and operating condition: are pressed 300g/t carries out collecting with Mo-bearing Iron Ores, the results showed that can be effectively by scheelite and Mo-bearing Iron Ores flotation point using the above agentia condition From, to mine contain WO3For 49.73%, MOO3Under the conditions of 13.67%, triple cleaning is scanned three times by one roughing, is contained MOO353.44%, contain WO32.61%, the Mo-bearing Iron Ores concentrate that the rate of recovery is 88.34% contains WO in product from failing353.40%.

Claims (3)

1. a kind of preparation method of scheelite inhibitor, which comprises the steps of:
(1) it is 10% hydrogen that 130~150ml mass concentration is added to after mixing 50~55g tannic acid with 20~25g amion acetic acid In sodium hydroxide solution, it is heated to 80~85 DEG C and makes it dissolve rear constant temperature 2~2.5 hours, be cooled to 25 DEG C, delay at this temperature The sodium carbonate liquor that slow addition 20~30ml mass concentration is 20% obtains product 1.
(2) sodium sulfide solution that 20~30g gallic acid and 150~160ml mass concentration are 20% is configured to solution, with production Product 1 are coupled under the conditions of pH10.5~11 and obtain product 2, and product 2 and nigrosine are coupled easily under the conditions of pH11.5~12 The black powder for being dissolved in water is the inhibitor.
2. application of the white tungsten inhibitor in tungsten separation of pulp concentrate described in claim 1, which is characterized in that flotation When, it is 25% by tungsten bulk concentrate tune ore pulp mass concentration, after then tune slurry pH is 9~9.5, by 700~800 g/t Mineral are added the inhibitor, then plus enuatrol make Mo-bearing Iron Ores mineral collector and collecting carried out to Mo-bearing Iron Ores mineral,
The total dosage of inhibitor are as follows: 700~800 g/t.
3. application of the scheelite inhibitor in the choosing separation of tungsten bulk concentrate according to claim 2, which is characterized in that make The inhibitor is first configured to the aqueous solution that mass percentage concentration is 1~2% by the used time.
CN201611117883.XA 2016-12-07 2016-12-07 A kind of preparation method of scheelite inhibitor Active CN106733215B (en)

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Publication number Priority date Publication date Assignee Title
CN114832946A (en) * 2022-05-05 2022-08-02 广西华锡集团股份有限公司 Novel organic inhibitor-based lead-zinc sulfide ore flotation separation method

Citations (6)

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US3915391A (en) * 1972-07-17 1975-10-28 Engelhard Min & Chem Recovery of scheelite from ores by flotation
US4040519A (en) * 1974-03-28 1977-08-09 Nittetsu Mining Company, Ltd. Froth flotation process for recovering sheelite
CN101224441A (en) * 2007-01-18 2008-07-23 中国地质科学院郑州矿产综合利用研究所 Molybdenum-tungsten oxide ore dressing process
CN102489407A (en) * 2011-11-30 2012-06-13 长沙矿冶研究院有限责任公司 Mineral processing method for recycling scheelite/molybdenum oxide ores from molybdenum sulfide flotation tailings
CN103691548A (en) * 2013-12-11 2014-04-02 广西大学 Method for recovering micro-fine particle white tungsten
CN105597938A (en) * 2015-09-29 2016-05-25 广州有色金属研究院 Beneficiation method of scheelite

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3915391A (en) * 1972-07-17 1975-10-28 Engelhard Min & Chem Recovery of scheelite from ores by flotation
US4040519A (en) * 1974-03-28 1977-08-09 Nittetsu Mining Company, Ltd. Froth flotation process for recovering sheelite
CN101224441A (en) * 2007-01-18 2008-07-23 中国地质科学院郑州矿产综合利用研究所 Molybdenum-tungsten oxide ore dressing process
CN102489407A (en) * 2011-11-30 2012-06-13 长沙矿冶研究院有限责任公司 Mineral processing method for recycling scheelite/molybdenum oxide ores from molybdenum sulfide flotation tailings
CN103691548A (en) * 2013-12-11 2014-04-02 广西大学 Method for recovering micro-fine particle white tungsten
CN105597938A (en) * 2015-09-29 2016-05-25 广州有色金属研究院 Beneficiation method of scheelite

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