CN113019685A - Beneficiation method for recycling wolframite from tungsten fine mud - Google Patents
Beneficiation method for recycling wolframite from tungsten fine mud Download PDFInfo
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- CN113019685A CN113019685A CN202110381887.3A CN202110381887A CN113019685A CN 113019685 A CN113019685 A CN 113019685A CN 202110381887 A CN202110381887 A CN 202110381887A CN 113019685 A CN113019685 A CN 113019685A
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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
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
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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
Abstract
The invention belongs to the field of mineral separation, and relates to a mineral separation method for recovering wolframite from wolframite fine mud, which comprises the following steps of (1) desliming; (2) flotation of the desulfurized ore; (3) roughing the black and white tungsten ores; (4) mineral separation and enrichment by a centrifugal machine; (5) removing the medicine and resolving; (6) and (4) carrying out concentration by using a black and white tungsten rough concentrate flotation column. The method is characterized in that desliming and flotation are carried out in advance to remove sulfides, and the separation environment of the black and white tungsten ores is optimized; a large amount of tailings are thrown away by the mixed flotation of the wolframite and the scheelite, so that the yield of the fine selection is greatly reduced; the concentration of the centrifuge improves the selected grade of the fine selection; the flotation column is adopted for short-flow recovery of the black and white tungsten ore, and the separation index of the tungsten ore is improved. The method aims at the difference of the properties and the separation characteristics of scheelite and wolframite in the tungsten fine mud, fully combines the characteristics of each process, focuses on the aspects of desliming, mixed flotation, centrifuge enrichment and short-process selection and recovery, can realize the high-efficiency recovery of the wolframite and the wolframite in the tungsten fine mud, is an environment-friendly and high-efficiency mineral separation method, and is suitable for recovering tungsten resources from the tungsten fine mud and tungsten tailings.
Description
Technical Field
The invention belongs to the field of beneficiation, and particularly relates to a beneficiation method for recovering wolframite from tungsten fine mud.
Background
The tungsten resource reserves in China are rich, the world tungsten resource is the most abundant country, the world tungsten yield is 8.5 kilotons in 2019, the tungsten yield in China is 7 kilotons and accounts for 82.35 percent, the tungsten resource is the largest tungsten producing country and consuming country in the world, and the clean and efficient development and utilization of the tungsten resource are important requirements for guaranteeing the national resource safety, the national defense safety and the development of the strategic emerging industry. More than 20 tungsten-containing minerals are found in nature, but only wolframite [ (Fe, Mn) WO) with industrial exploitation value4]And scheelite (CaWO)4). Although the tungsten resource reserves in China are considerable, a large amount of tungsten is lost due to the properties of tungsten and the problems in the sorting process. Therefore, the development of efficient equipment and a new tungsten selecting process and the recovery of tungsten resources from the tungsten fine mud have very important theoretical and practical significance.
The wolframite and scheelite have great difference in properties and sorting characteristics, the wolframite has high density, is fragile and easy to over-crush, and is mainly recovered by a gravity separation method, and the tungsten fine mud is recovered by a common flotation method. The scheelite has good floatability and is mainly recovered by a flotation process, usually by the petronov method or the room temperature flotation method. The mixed wolframite and scheelite ore usually adopts a method of mixed flotation and heating, concentrating and separating of mixed concentrate, but the heating, concentrating and separating energy consumption is high, and the scheelite ore is subjected to heating, inhibiting and reactivation flotation, so that the flotation recovery rate of the scheelite ore is low. In order to comprehensively recover the wolframite resources in the tungsten fine mud, a mineral separation process with good separation index, low production cost and simple flow is required to be developed according to the characteristics of the wolframite resources in the tungsten fine mud so as to realize the high-efficiency recovery of the wolframite from the tungsten fine mud.
Disclosure of Invention
The invention aims to provide an efficient and stable beneficiation method with good sorting index, low production cost and environmental protection, which is used for efficiently recycling black and white tungsten from tungsten fine mud.
The invention is realized in this way, a beneficiation method for recovering wolframite from tungsten fine mud, which comprises the following steps:
(1) desliming: the slime directly affects the separation index and the beneficiation reagent consumption, so that the fine slime attached to ore particles and the slime formed by the fine slime are dissociated and dispersed, and are removed, so that the flotation efficiency can be improved, the concentrate filtering effect can be improved, and the fine tungsten slime containing black and white tungsten is subjected to desliming and concentration through a hydraulic separator to obtain desliming concentrate and tailings 1;
(2) removing sulfide by flotation: grinding and pulping the deslimed concentrate obtained in the step (1), and adding a butyl xanthate and a butylammonium black powder, wherein the weight ratio of the butyl xanthate to the butylammonium black powder is 2:1, and the dosage is 60 g/t-80 g/t; adding kerosene with the dosage of 10 g/t-30 g/t; adding No. 2 oil with the dosage of 10 g/t-20 g/t; adopting a second rough sweeping flow to obtain flotation sulfide (tailings 2) and sulfide flotation tailings;
(3) roughing black and white tungsten ores: and (3) performing mixed flotation roughing on the sulfide flotation tailings obtained in the step (2) for the black and white tungsten ores, and obtaining tungsten mixed rough concentrates and tailings 3 by adopting a one-rough-one-fine-two-sweep flotation process. Adding Na for roughing2CO3、Na2SiO3、Al2(SO4)3、Pb(NO3)2TW-705 and GYB with the dosage of 1200g/t, 1000g/t, 300g/t, 500g/t and 500g/t respectively as roughing flotation agents; adding TW-705 and lead nitrate in an amount of 120g/t and 60g/t respectively; adding TW-705 and lead nitrate into the sweep two, wherein the dosage is 60g/t and 30g/t respectively; the selection is blank selection, and no flotation agent is added;
(4) mineral separation and enrichment by a centrifugal machine: feeding the tungsten mixed rough concentrate obtained in the step (3) into an SLon-1600 type centrifugal separator, and obtaining concentrate and tailings 4 of centrifugal gravity separation by adopting a rough scanning process flow under the conditions that the ore feeding concentration is 20%, the washing water amount is 2.0L/min and the rotating drum rotating speed is 680 r/min;
(5) removing the medicine and resolving: the centrifugal concentrate obtained in the step (4) is subjected to suction filtration to remove water, then clear water is added to recover the mass fraction of the raw ore pulp, and the raw ore pulp is subjected to filtration, reagent removal and analysis to remove residual beneficiation reagents, so that the influence of the reagents is eliminated, the concentration flotation is easier, and favorable flotation conditions are created for the concentration of tungsten rough concentrate;
(6) and (3) selecting a tungsten black and white rough concentrate flotation column: carrying out flotation column concentration on the black and white tungsten rough concentrate obtained in the step (5) after the drug removal, and adding Na2CO3、Na2SiO3、Pb(NO3)2Sodium fluosilicate, TW-705 and GYR are used as flotation agents, and a flotation process of one-coarse-two-fine-sweep is adopted to obtain tungsten concentrate and tailings 5.
The invention has the characteristics that:
(1) the interference of fine mud and sulfide minerals on tungsten ore separation is reduced by desliming and flotation for removing sulfides, the tungsten separation environment is optimized, the interference factors of ore separation are reduced, and the improvement of the grade of tungsten ore concentrate is facilitated;
(2) the mixed flotation of the wolframite and the scheelite is adopted, the wolframite and the scheelite concentrate are not required to be separated separately, and the mixed wolframite and the scheelite concentrate are finally obtained, so that the flotation process flow is simplified, the wolframite and the scheelite are enriched, a large amount of tailings are discarded, and the ore feeding amount in the concentration operation is greatly reduced;
(3) the centrifugal machine carries out gravity concentration on the tungsten rough concentrate to discard the tailings, so that the black and white tungsten ore is further enriched, the concentration grade of the black and white tungsten ore is improved, the ore feeding amount of the black and white tungsten ore is reduced, the dosage of a flotation reagent for the concentration is saved, and the reagent cost is reduced;
(4) the characteristic of high enrichment ratio of the flotation column is utilized to carry out concentration on the black-white tungsten mixed rough concentrate, so that short-flow efficient separation and recovery can be realized.
Drawings
FIG. 1 is a process diagram of the present invention
Detailed Description
Removing mud from tungsten fine mud containing tungsten oxide, grinding, mixing, adding butyl xanthate, ammonium butyl black, kerosene and 2#Oil, adopting two rough scanning processes to remove sulfide by flotation; carrying out mixed flotation roughing on the sulfide flotation tailings for black and white tungsten ores, and adopting a flotation process of primary roughing, primary fine sweeping and secondary sweeping to obtain tungsten mixed rough concentrates; feeding the tungsten mixed rough concentrate into a centrifugal separator for enrichment, and obtaining gravity separation centrifugal concentrate by adopting a rough scanning process flow; the gravity separation centrifugal concentrate is subjected to reagent removal and analysis,the residual beneficiation reagent is removed, the influence of the reagent is eliminated, and favorable flotation conditions are created for the concentration of the tungsten rough concentrate; and (4) carrying out flotation column fine selection on the black and white tungsten rough concentrate after the reagent removal, and obtaining the tungsten concentrate by adopting a flotation process of one rough step and two fine step.
Example 1
WO is contained in the fine mud of certain tungsten ore in Jiangxi Ganzhou30.42 percent of the tungsten fine mud, wherein the tungsten fine mud accounts for 82 percent in thickness of-0.074 mm, the main minerals comprise wolframite, scheelite, chalcopyrite, pyrite, feldspar, quartz, mica and the like, and the process of 'desliming-mixed flotation of black and white tungsten, concentration by a centrifuge, depurating and resolving-fine selection by a black and white tungsten flotation column' is adopted, and the main parameters are as follows: the weight ratio of the butyl xanthate to the ammonium back-emf is 2:1, and the dosage is 70 g/t; adding kerosene with the dosage of 20 g/t; adding 2#The amount of the oil is 15g/t, tungsten concentrate and tailings (tailings 1, 2, 3, 4 and 5 in the principle process) can be obtained, and finally the WO-containing ore concentrate and tailings can be obtained328.66% tungsten concentrate with a recovery rate of 69.60%; the process can be used for treating the tailings, and can better recover tungsten resources in the tailings. The results of example 1 are shown in Table 1.
Table 1 beneficiation results of example 1
| Name (R) | Yield% | Grade% | The recovery rate is high |
| Tungsten concentrate | 1.02 | 28.66 | 69.60 |
| Tailings | 98.98 | 0.13 | 30.40 |
| Raw ore | 100.00 | 0.42 | 100.00 |
Example 2
WO is contained in the fine mud of certain tungsten ore in Jiangxi Ganzhou30.46 percent, wherein-0.074 mm in the fine mud accounts for 85 percent, the main minerals comprise wolframite, scheelite, chalcopyrite, pyrite, feldspar, quartz, mica and the like, and the process of 'desliming-mixed flotation of black and white tungsten-centrifuge enrichment-depurating analysis-fine selection of a black and white tungsten flotation column' is adopted, and the main parameters are as follows: the weight ratio of the butyl xanthate to the ammonium back-emf is 2:1, and the dosage is 70 g/t; adding kerosene with the dosage of 20 g/t; adding 2#Oil with the amount of 15g/t to obtain tungsten concentrate and tailings (tailings 1, 2, 3, 4 and 5 in the principle process), and finally obtaining the tungsten-containing tailings330.18 percent of tungsten concentrate with the recovery rate of 70.86 percent; the process can recover tungsten resource from fine mud. The results of example 2 are shown in Table 2.
Table 2 beneficiation results of example 2
| Name (R) | Yield% | Grade% | The recovery rate is high |
| Tungsten concentrate | 1.08 | 30.18 | 70.86 |
| Tailings | 98.92 | 0.14 | 29.14 |
| Raw ore | 100.00 | 0.46 | 100.00 |
Claims (4)
1. A beneficiation method for recovering wolframite from tungsten fine mud is characterized by comprising the following steps:
(1) desliming: desliming and concentrating the tungsten fine mud containing the tungsten oxide by a hydraulic separator to obtain deslimed concentrate and tailings 1;
(2) removing sulfide by flotation: grinding and pulping the deslimed concentrate obtained in the step (1), and adding a butyl xanthate and a butylammonium black powder, wherein the weight ratio of the butyl xanthate to the butylammonium black powder is 2:1, and the dosage is 60 g/t-80 g/t; adding kerosene with the dosage of 10 g/t-30 g/t; adding 2#The amount of the oil is 10 g/t-20 g/t; adopting a second rough sweeping flow to obtain flotation sulfide (tailings 2) and sulfide flotation tailings;
(3) roughing black and white tungsten ores: performing mixed flotation roughing on the sulfide flotation tailings obtained in the step (2) to obtain tungsten mixed rough concentrates and tailings 3 by adopting a flotation process of one-rough-one-fine-two-sweep; adding Na for roughing2CO3、Na2SiO3、Al2(SO4)3、Pb(NO3)2TW-705 and GYB with the dosage of 1200g/t, 1000g/t, 300g/t, 500g/t and 500g/t respectively as roughing flotation agents; adding TW-705 and lead nitrate in an amount of 120g/t and 60g/t respectively; adding TW-705 and lead nitrate into the sweep two, wherein the dosage is 60g/t and 30g/t respectively; the selection is blank selection, and no flotation agent is added;
(4) mineral separation and enrichment by a centrifugal machine: feeding the tungsten mixed rough concentrate obtained in the step (3) into an SLon-1600 type centrifugal separator, and obtaining concentrate and tailings 4 of centrifugal gravity separation by adopting a rough scanning process flow under the conditions that the ore feeding concentration is 20%, the washing water amount is 2.0L/min and the rotating drum rotating speed is 680 r/min;
(5) removing the medicine and resolving: performing suction filtration on the centrifugal concentrate obtained in the step (4), adding clear water to restore the mass fraction of the original ore pulp, performing filtration, reagent removal and analysis, removing residual ore dressing reagents, and eliminating the influence of the reagents;
(6) and (3) selecting a tungsten black and white rough concentrate flotation column: carrying out flotation column concentration on the black and white tungsten rough concentrate obtained in the step (5) after the drug removal, and adding Na2CO3、Na2SiO3、Pb(NO3)2Sodium fluosilicate, TW-705 and GYR are used as flotation agents, and a flotation process of one-coarse-two-fine-sweep is adopted to obtain tungsten concentrate and tailings 5.
2. The beneficiation method for recovering from tungsten slime from wolframite according to claim 1, wherein the raw ore contains wolframite slime of wolframite and the raw ore contains WO30.42 to 0.46 percent of the total mineral, and the main minerals comprise wolframite, scheelite, chalcopyrite, pyrite, feldspar, quartz, mica and the like.
3. The beneficiation method for recovering the wolframite from the tungsten fine mud according to the claim 1, wherein the TW-705 added in the step (3) and the step (6) in the flotation is benzohydroxamic acid which is used as a collector for the rough beneficiation of the wolframite; and (4) GYB and GYR which are added in the steps (3) and (6) in a flotation mode are chelating collecting agents and are used as collecting agents for the concentration of the black and white tungsten ores.
4. The beneficiation method for recovering wolframite from tungsten slime according to any one of claims 1 to 3, characterized in that in the step (1), butyl xanthate and butyl ammonium blackant are added, the weight ratio of the butyl xanthate to the butyl ammonium blackant is 2:1, and the dosage is 60 g/t; adding kerosene with the dosage of 15 g/t; adding 2#Oil, in an amount of 10 g/t.
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU5764373A (en) * | 1972-07-17 | 1975-02-27 | Engelhard Minerals And Chemical Corp. | Recovery of scheelite from ores by flotation |
| CA1085519A (en) * | 1978-01-23 | 1980-09-09 | Edward W.J. Thornton | Process for the concentration of mineral by flotation process |
| CA1193769A (en) * | 1981-09-21 | 1985-09-17 | Gordon E. Agar | Scheelite flotation process |
| CN1962074A (en) * | 2006-11-25 | 2007-05-16 | 中国矿业大学 | Column type short-stage tungseten crude grading process and equipment |
| CN101269352A (en) * | 2008-05-05 | 2008-09-24 | 广州有色金属研究院 | Beneficiation method for black and white tungsten fine deposit |
| CN104128251A (en) * | 2014-07-24 | 2014-11-05 | 江西理工大学 | Beneficiation method of tungsten fine silt |
| CN105312159A (en) * | 2014-07-18 | 2016-02-10 | 沈阳有色金属研究院 | Flotation reagent system for fine wolframite in gravity concentration tailings |
| CN110038718A (en) * | 2019-04-19 | 2019-07-23 | 赣州金环磁选设备有限公司 | A kind of new process using centrifuge and flotation efficient separation microfine tungsten ore |
| CN110918247A (en) * | 2019-11-28 | 2020-03-27 | 宁化行洛坑钨矿有限公司 | Sorting method of low-grade tungsten black and white fine mud |
-
2021
- 2021-04-09 CN CN202110381887.3A patent/CN113019685A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU5764373A (en) * | 1972-07-17 | 1975-02-27 | Engelhard Minerals And Chemical Corp. | Recovery of scheelite from ores by flotation |
| CA1085519A (en) * | 1978-01-23 | 1980-09-09 | Edward W.J. Thornton | Process for the concentration of mineral by flotation process |
| CA1193769A (en) * | 1981-09-21 | 1985-09-17 | Gordon E. Agar | Scheelite flotation process |
| CN1962074A (en) * | 2006-11-25 | 2007-05-16 | 中国矿业大学 | Column type short-stage tungseten crude grading process and equipment |
| CN101269352A (en) * | 2008-05-05 | 2008-09-24 | 广州有色金属研究院 | Beneficiation method for black and white tungsten fine deposit |
| CN105312159A (en) * | 2014-07-18 | 2016-02-10 | 沈阳有色金属研究院 | Flotation reagent system for fine wolframite in gravity concentration tailings |
| CN104128251A (en) * | 2014-07-24 | 2014-11-05 | 江西理工大学 | Beneficiation method of tungsten fine silt |
| CN110038718A (en) * | 2019-04-19 | 2019-07-23 | 赣州金环磁选设备有限公司 | A kind of new process using centrifuge and flotation efficient separation microfine tungsten ore |
| CN110918247A (en) * | 2019-11-28 | 2020-03-27 | 宁化行洛坑钨矿有限公司 | Sorting method of low-grade tungsten black and white fine mud |
Non-Patent Citations (2)
| Title |
|---|
| 吕家华等: "某黑钨选厂排尾细泥全泥浮选工业化试验", 《中国钨业》 * |
| 孙传尧: "《选矿工程师手册第1册》", 31 March 2015, 冶金工业出版社 * |
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