CN107790290B - Beneficiation method for recovering fluorite from scheelite rough concentrate - Google Patents
Beneficiation method for recovering fluorite from scheelite rough concentrate Download PDFInfo
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- CN107790290B CN107790290B CN201711011044.4A CN201711011044A CN107790290B CN 107790290 B CN107790290 B CN 107790290B CN 201711011044 A CN201711011044 A CN 201711011044A CN 107790290 B CN107790290 B CN 107790290B
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- fluorite
- scheelite
- concentration
- flotation
- tailings
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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
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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
- B03D2203/04—Non-sulfide ores
Abstract
The invention relates to a beneficiation method for recovering fluorite from scheelite rough concentrate, in particular to the technical field of flotation recovery beneficiation of the fluorite recovered from the scheelite rough concentrate, successfully solves the problems of low grade and difficult recovery of the fluorite associated with skarn type scheelite deposit in the Luoyang Koelreuteria area, and obtains good economic benefit and social benefit. By adopting the flotation process of the scheelite rough concentrate pre-concentration-pre-concentration tailing fluorite, the fluorite concentrate with the grade of 93.02 percent and the recovery rate of 41.76 percent can be obtained. The grade of calcite in the fluorite concentrate is 3.68 percent, and the loss rate of tungsten is only 0.344 percent.
Description
The technical field is as follows:
the invention relates to the technical field of fluorite flotation and beneficiation, in particular to a beneficiation method for recovering fluorite from scheelite rough concentrate.
Background art:
the skarn type scheelite deposit contains a large amount of quartz accompanied by a certain amount of calcium carbonate, fluorite and the like, but the grade of the fluorite is not high generally and cannot reach the economic grade of comprehensive recycling. Scheelite in goldenland area of Luoyang city in Henan is a typical skarn type deposit, the daily treatment of scheelite flotation reaches 50000 tons per day, the grade of fluorite in raw ore is 7-10%, and the grade is too low to be comprehensively recycled. In the course of white tungsten roughing, the grade of fluorite is enriched with the enrichment of white tungsten, the grade of fluorite in the white tungsten rough concentrate is 28% -30%, and the method has high recycling value.
The invention content is as follows:
in order to overcome the defects, the invention provides a beneficiation method for recovering fluorite from scheelite rough concentrate.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a beneficiation method for recovering fluorite from scheelite rough concentrate comprises the following steps:
first, scheelite rough concentrate pre-concentration flotation
Adding 3000-4000g/t of inhibitor water glass into the scheelite rough concentrate to carry out scheelite pre-concentration;
the scheelite pre-concentration concentrate enters scheelite heating concentration, and the scheelite pre-concentration tailings enter fluorite flotation;
second, pre-concentration flotation of fluorite in tailings
Adding 550-650g/t of collecting agent NAK into the scheelite preconcentration tailings to obtain fluorite rough concentrate;
sequentially carrying out ten times of concentration on the fluorite rough concentrate, wherein the ten times of concentration are sequentially added with inhibitor acidified water glass of 800-ton, 800-1000-ton, 650-800-ton, 500-650-ton, 400-500-ton, 400-ton, 300-400-ton and 200-300-ton, and then added with inhibitors of ATM of 100-150-ton, 100-120-ton, 80-120-ton, 60-80-ton, 50-60-ton and 40-50-ton; 30-40g/t, 20-30g/t and 10-20 g/t; 10-20g/t, returning fluorite flotation tailings X, the first fluorite concentration tailings and the second fluorite concentration tailings to the white tungsten roughing;
primarily removing tungsten from the fluorite concentration tailings from the third time to the tenth time, and adding 40-60g/t of ATM for further flotation;
and returning the fluorite flotation middling M to the white tungsten heating concentration, and returning the concentrate to the third fluorite concentration.
Due to the adoption of the technical scheme, the invention has the following advantages:
the beneficiation method for recovering fluorite from the scheelite rough concentrate successfully solves the problems of low grade and difficult recovery of the associated fluorite raw ore of the skarn type scheelite deposit, and obtains good economic benefit and social benefit.
Description of the drawings:
FIG. 1 is a flow chart of the present invention.
The specific implementation mode is as follows:
the present invention will be explained in more detail by the following examples, which are intended to disclose all changes and modifications within the scope of the present invention, and the present invention is not limited to the following examples;
a beneficiation method for recovering fluorite from scheelite rough concentrate comprises the following steps:
first, scheelite rough concentrate pre-concentration flotation
Adding 3500g/t of inhibitor water glass into the scheelite rough concentrate to carry out the preconcentration of the scheelite;
the scheelite pre-concentration concentrate enters scheelite heating concentration, and the scheelite pre-concentration tailings enter fluorite flotation;
second, pre-concentration flotation of fluorite in tailings
Adding a collector NAK600g/t into the scheelite preconcentration tailings to obtain fluorite rough concentrate;
sequentially carrying out ten times of concentration on the fluorite rough concentrate, sequentially adding 900g/t, 700g/t, 600g/t, 450g/t, 350g/t and 250g/t of inhibitor acidified water glass into the ten times of concentration, and adding 100g/t, 100g/t, 80g/t, 70g/t, 60g/t and 50g/t of inhibitors; 40g/t, 0g/t, 20 g/t; 10g/t, returning fluorite flotation tailings X, the first fluorite concentration tailings and the second fluorite concentration tailings to the white tungsten roughing;
primarily removing tungsten from the fluorite concentration tailings from the third time to the tenth time, and adding 50g/t of ATM for further flotation;
and returning the fluorite flotation middling M to the white tungsten heating concentration, and returning the concentrate to the third fluorite concentration.
The grade of the final fluorite concentrate is 93.02%, the recovery rate is 41.76%, the grade of calcite in the fluorite concentrate is 3.68%, and the loss rate of tungsten is only 0.344%.
The details of the above are not described in detail since they are prior art.
Claims (1)
1. A beneficiation method for recovering fluorite from scheelite rough concentrate is characterized in that: the method comprises the following steps:
first, scheelite rough concentrate pre-concentration flotation
Adding 3000-4000g/t of inhibitor water glass into the scheelite rough concentrate to carry out scheelite pre-concentration;
the scheelite pre-concentration concentrate enters scheelite heating concentration, and the scheelite pre-concentration tailings enter fluorite flotation;
second, pre-concentration flotation of fluorite in tailings
Adding 550-650g/t of collecting agent into the scheelite preconcentration tailings to obtain fluorite rough concentrate;
the fluorite rough concentrate is sequentially selected for ten times, wherein inhibitor acidified water glass 800-1000g/t, 650-800g/t, 500-650g/t, 400-500g/t, 300-400g/t and 200-300g/t are sequentially added in the ten-time selection, inhibitors ATM100-150g/t, 100-120g/t, 80-120g/t, 60-80g/t, 50-60g/t, 40-50g/t, 30-40g/t, 20-30g/t, 10-20g/t and 10-20g/t are added, returning the fluorite flotation tailings X, the first fluorite concentration tailings and the second fluorite concentration tailings to the scheelite roughing;
primarily removing tungsten from the fluorite concentration tailings from the third time to the tenth time, and adding 40-60g/t of ATM for further flotation;
and returning the fluorite flotation middling M to the white tungsten heating concentration, and returning the concentrate to the third fluorite concentration.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711011044.4A CN107790290B (en) | 2017-10-26 | 2017-10-26 | Beneficiation method for recovering fluorite from scheelite rough concentrate |
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| CN201711011044.4A CN107790290B (en) | 2017-10-26 | 2017-10-26 | Beneficiation method for recovering fluorite from scheelite rough concentrate |
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| CN107790290A CN107790290A (en) | 2018-03-13 |
| CN107790290B true CN107790290B (en) | 2020-04-17 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108672091A (en) * | 2018-04-28 | 2018-10-19 | 武汉科技大学 | A kind of method of dolomite type fluorite flotation fluorite |
| CN108722660B (en) * | 2018-05-18 | 2020-05-22 | 中国地质科学院郑州矿产综合利用研究所 | Beneficiation method of low-grade scheelite |
| CN109092564A (en) * | 2018-06-29 | 2018-12-28 | 湖南柿竹园有色金属有限责任公司 | A kind of beneficiation method of black and white tungsten tin bulk concentrate |
| CN111068925B (en) * | 2019-12-23 | 2020-10-16 | 中南大学 | Application of 2- (3-substituted ureido) -N-hydroxy-2-oxyacetonitride cyanide compounds in flotation |
| CN111841826B (en) * | 2020-06-11 | 2021-12-10 | 矿冶科技集团有限公司 | Beneficiation method for high-calcium carbonate type low-grade scheelite |
| CN114653479A (en) * | 2022-04-11 | 2022-06-24 | 湖南有色郴州氟化学有限公司 | Multi-metal co-associated fluorite ore de-drug flotation method |
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