CN115739387A - Beneficiation method for improving recovery rate - Google Patents
Beneficiation method for improving recovery rate Download PDFInfo
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- CN115739387A CN115739387A CN202211410897.6A CN202211410897A CN115739387A CN 115739387 A CN115739387 A CN 115739387A CN 202211410897 A CN202211410897 A CN 202211410897A CN 115739387 A CN115739387 A CN 115739387A
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- Prior art keywords
- tailings
- concentration
- concentrate
- primary
- scavenging
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- 238000011084 recovery Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 28
- 239000012141 concentrate Substances 0.000 claims abstract description 51
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 25
- 239000010452 phosphate Substances 0.000 claims abstract description 25
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract description 25
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 24
- 230000002000 scavenging effect Effects 0.000 claims abstract description 24
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 15
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052742 iron Inorganic materials 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- 235000019353 potassium silicate Nutrition 0.000 claims description 9
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 9
- 239000012188 paraffin wax Substances 0.000 claims description 6
- 239000000344 soap Substances 0.000 claims description 6
- 239000004576 sand Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims 3
- 238000005516 engineering process Methods 0.000 abstract description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 description 5
- 239000011707 mineral Substances 0.000 description 5
- 239000003814 drug Substances 0.000 description 4
- 238000005065 mining Methods 0.000 description 3
- GFNGCDBZVSLSFT-UHFFFAOYSA-N titanium vanadium Chemical compound [Ti].[V] GFNGCDBZVSLSFT-UHFFFAOYSA-N 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to a beneficiation method for improving the recovery rate, which comprises the following steps that 1) crude ore enters rough concentration after primary grinding, rough concentration concentrate enters primary fine concentration I, rough concentration tailings enter scavenging, and scavenging tailings are tailings 1; 2) Performing secondary concentration II on the concentrate obtained in the primary concentration I, wherein the concentrate obtained in the secondary concentration II is phosphate concentrate 1, and the tailings obtained in the secondary concentration II are returned to the primary concentration I; 3) Mixing the first concentration I tailings and scavenging concentrate for secondary ore grinding operation; 4) And performing primary roughing I, primary concentrating I-I and primary scavenging I on the materials obtained by secondary grinding, wherein tailings of the concentrating I-I and concentrate of the scavenging I return to the roughing I, the concentrate of the concentrating I-I is phosphate concentrate 2, and the tailings of the scavenging I is tailings 2. The invention effectively improves the recovery rate of the phosphate concentrate by improving the ore dressing technology of the iron dressing tailings of the ultra-lean vanadium titano-magnetite.
Description
Technical Field
The invention relates to the technical field of beneficiation, in particular to a beneficiation method for improving recovery rate.
Background
In northern China, chengdi city is the largest base of vanadium titano-magnetite, and the storage capacity of ultra-lean vanadium titano-magnetite in titanium resources of Chengdi city is about 45.52 hundred million tons. The components of the mineral powder are very complex, and the mineral powder is composed of mineral components such as vanadium, titanium, chromium, platinum, phosphorus and the like, and has the characteristics of easy selection and collection. In recent years, the mining and selecting industry of civil vanadium titano-magnetite in Chengdu areas has been developed rapidly, but due to the conditions of all aspects and the limitation of mining technology, the utilization rate of most vanadium titano-magnetite is not high.
In order to improve the utilization rate of the ultra-lean vanadium-titanium magnetite, mineral enterprises can also carry out mineral separation on the iron tailings of the ultra-lean vanadium-titanium magnetite so as to obtain phosphate concentrate.
In the prior art, the mining process for obtaining phosphate concentrate by using the iron tailings of ultra-lean vanadium titano-magnetite for beneficiation comprises the following steps: the raw ore is subjected to primary ore grinding and then rough concentration, and the rough concentrate is subjected to two times of fine concentration to obtain phosphate concentrate (as shown in figure 2).
The recovery rate of the phosphate concentrate obtained by the prior art is 84.49%. In order to enable the ultra-lean vanadium titano-magnetite iron dressing tailings to obtain higher utilization rate, the invention develops a beneficiation method for improving the recovery rate, so as to obtain phosphate concentrate with higher recovery rate on the basis of not changing the grade of raw ore, thereby improving the utilization rate of the ultra-lean vanadium titano-magnetite iron dressing tailings.
Disclosure of Invention
The invention aims to provide a beneficiation method for improving the recovery rate, and the recovery rate of phosphate concentrate is effectively improved by improving the beneficiation process technology of the iron tailings of ultra-lean vanadium titano-magnetite.
In order to achieve the purpose, the invention adopts the following technical scheme:
a beneficiation method for improving recovery rate comprises
1) Carrying out primary grinding on raw ores and then carrying out roughing, carrying out primary concentration I on roughing concentrate, carrying out scavenging on roughing tailings, and taking scavenging tailings as tailings 1;
2) Performing secondary concentration II on the concentrate obtained in the primary concentration I, wherein the concentrate obtained in the secondary concentration II is phosphate concentrate 1, and the tailings obtained in the secondary concentration II are returned to the primary concentration I;
3) Mixing the first concentration I tailings and scavenging concentrate for secondary ore grinding operation;
4) And performing primary roughing I, primary concentrating I-I and primary scavenging I on the material obtained by secondary grinding, wherein tailings of the primary concentrating I-I and the concentrate of the scavenging I are returned to the roughing I, the concentrate of the primary concentrating I-I is phosphate concentrate 2, and the tailings of the scavenging I is tailings 2.
The primary grinding fineness is more than or equal to 50 percent (generally 50 to 60 percent) when the primary grinding fineness is-0.074 mm; the fineness of the secondary grinding ore is more than or equal to 85 percent (the fineness is-0.074 mm), and is generally 85 to 90 percent.
The primary grinding adopts an overflow ball mill; the secondary grinding adopts moxa sand grinding, and the function of the secondary grinding is to prevent over grinding.
The roughing medicament system comprises 350-400g/t of the dosage of the collecting agent and 200-300g/t of water glass.
The rough concentration I reagent system comprises 50-70g/t of collecting agent and 100-130g/t of water glass.
The collecting agent is MES and oxidized paraffin soap, and the collecting agent is prepared according to the following steps of: oxidized paraffin soap =3:1 to 5.
The I-I medicament system is selected to be 50-60g/t of water glass.
The raw ore is the iron tailings of the ultra-lean vanadium titano-magnetite in the Chengdu region, and the grade of the raw ore is 2.14%.
Compared with the prior art, the invention has the beneficial effects that:
the invention relates to a beneficiation method for improving the recovery rate, which effectively improves the recovery rate of phosphate concentrate by improving the beneficiation technology of iron tailings of ultra-lean vanadium titano-magnetite.
The grade of the phosphate concentrate in the iron tailings of the ultra-lean vanadium-titanium magnetite ore dressing in the Chengdu region treated by the process flow is 31.49 percent, and the recovery rate is 91.54 percent; the grade of the tailings is 0.19 percent, and the recovery rate is 8.46 percent. Compared with the prior art, the recovery rate of the phosphate concentrate is greatly improved.
Drawings
FIG. 1 is a process flow diagram of an embodiment of the invention.
Figure 2 is a prior art process flow diagram.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only illustrative and are not intended to limit the present invention.
As shown in fig. 1, the specific embodiment of the present invention is: a beneficiation method for improving recovery rate comprises
1) Carrying out primary grinding on raw ores and then carrying out roughing, carrying out primary concentration I on roughing concentrate, carrying out scavenging on roughing tailings, and taking scavenging tailings as tailings 1;
2) Performing secondary concentration II on the concentrate obtained in the primary concentration I, wherein the concentrate obtained in the secondary concentration II is phosphate concentrate 1, and the tailings obtained in the secondary concentration II are returned to the primary concentration I;
3) Mixing the first concentration I tailings and scavenging concentrate for secondary ore grinding operation;
4) And performing primary roughing I, primary concentrating I-I and primary scavenging I on the material obtained by secondary grinding, wherein tailings of the primary concentrating I-I and the concentrate of the scavenging I are returned to the roughing I, the concentrate of the primary concentrating I-I is phosphate concentrate 2, and the tailings of the scavenging I is tailings 2.
The primary grinding fineness is more than or equal to 50 percent (generally 50 to 60 percent) when the primary grinding fineness is-0.074 mm; the fineness of the secondary grinding ore is more than or equal to 85 percent (the fineness is-0.074 mm), and is generally 85 to 90 percent.
The primary grinding adopts an overflow ball mill; the secondary grinding adopts moxa sand grinding, and the function of the secondary grinding is to prevent over grinding.
The roughing medicament system comprises 350g/t of collecting agent dosage and 200g/t of water glass.
The rough concentration I reagent system is 50g/t of collecting agent and 100g/t of water glass.
The collecting agent is MES and oxidized paraffin soap, and the collecting agent is prepared by the following steps: oxidized paraffin soap =3:1, were mixed.
A selected I-I medicament system is 50g/t of water glass.
The raw ore is the iron tailings of the ultra-lean vanadium titano-magnetite in Chengde region, and the grade of the raw ore is 2.14%.
In the embodiment of the invention, the recovery rate of the phosphate concentrate obtained from the iron tailings of the ultra-lean vanadium titano-magnetite in the Chengde region after the treatment by the process flow is shown in the table 1;
TABLE 1 closed-loop test results of the process flow of the examples of the invention
| Name of product | Yield/%) | Grade/% | Percent recovery% |
| Raw ore | 100.00 | 2.14 | 100.00 |
| Phosphate concentrate 1 | 4.01 | 32.56 | 61.01 |
| Tailing 1 | 82.15 | 0.18 | 6.91 |
| Phosphate concentrate 2 | 2.21 | 29.56 | 30.53 |
| Tailings 2 | 11.63 | 0.29 | 1.55 |
The results of the data obtained after mixing phosphate concentrate 1 and phosphate concentrate 2 together and tailings 1 and 2 together are shown in table 2:
TABLE 2
| Product name | Yield/%) | Grade/% | Percent recovery% |
| Raw ore | 100.00 | 2.14 | 100.00 |
| Phosphate concentrate (mix) | 6.22 | 31.49 | 91.54 |
| Tailings (mix) | 93.78 | 0.19 | 8.46 |
TABLE 3 results of closed loop test of conventional Process flow
Table 3 shows the results of the recovery rate test of the closed-circuit phosphate concentrate in the conventional process flow, and compared with the conventional process flow, the advantages of the present invention are: under the condition of ensuring the concentrate grade, the recovery rate is 7.05 percent higher than that of the conventional process flow, and the tailing grade is 0.16 percent lower than that of the conventional flotation.
Claims (8)
1. The beneficiation method for improving the recovery rate is characterized by comprising
1) Carrying out primary grinding on raw ores and then carrying out roughing, carrying out primary concentration I on roughing concentrate, carrying out scavenging on roughing tailings, and taking scavenging tailings as tailings 1;
2) Performing secondary concentration II on the concentrate obtained in the primary concentration I, wherein the concentrate obtained in the secondary concentration II is phosphate concentrate 1, and the tailings obtained in the secondary concentration II are returned to the primary concentration I;
3) Mixing the first concentration I tailings and scavenging concentrate for secondary ore grinding operation;
4) And performing primary roughing I, primary concentrating I-I and primary scavenging I on the material obtained by secondary grinding, wherein tailings of the primary concentrating I-I and the concentrate of the scavenging I are returned to the roughing I, the concentrate of the primary concentrating I-I is phosphate concentrate 2, and the tailings of the scavenging I is tailings 2.
2. The beneficiation method for improving the recovery rate according to claim 1, wherein the primary grinding fineness is-0.074 mm or more and 50%, and the secondary grinding fineness is-0.074 mm or more and 85%.
3. The beneficiation method for improving the recovery rate according to claim 2, wherein the secondary grinding is performed by using moxa sand.
4. The beneficiation method for improving the recovery rate according to claim 1, wherein the roughing chemical system is that the dosage of a collecting agent is 350-400g/t, and the dosage of water glass is 200-300g/t.
5. The beneficiation method for improving the recovery rate according to claim 1, wherein the rough concentration I chemical system comprises 50-70g/t of a collecting agent and 100-130g/t of water glass.
6. An enhanced recovery beneficiation method according to claim 4 or 5, wherein the collectors are MES and oxidized paraffin soap, according to the MES: oxidized paraffin soap =3:1 to 5.
7. The beneficiation method for improving the recovery rate according to claim 1, wherein a concentration I-I chemical system is 50-60g/t of water glass.
8. The beneficiation method for improving the recovery rate according to claim 1, wherein the raw ore is the iron tailings of the ultra-lean vanadium titano-magnetite in Chengdu district, and the grade of the raw ore is 2.14%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211410897.6A CN115739387A (en) | 2022-11-11 | 2022-11-11 | Beneficiation method for improving recovery rate |
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| CN202211410897.6A CN115739387A (en) | 2022-11-11 | 2022-11-11 | Beneficiation method for improving recovery rate |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2107963A1 (en) * | 1992-10-09 | 1994-04-10 | Nathaniel Arbiter | Tailings retreatment |
| CN102284369A (en) * | 2011-06-09 | 2011-12-21 | 北京矿冶研究总院 | Method for improving flotation recovery rate |
| CN103962214A (en) * | 2014-06-03 | 2014-08-06 | 中冶沈勘秦皇岛工程技术有限公司 | Combined beneficiation method and combined beneficiation system for comprehensive recovery of associated iron-phosphate minerals |
| CN104923368A (en) * | 2015-06-10 | 2015-09-23 | 中蓝连海设计研究院 | Ore grinding and beneficiation process for siliceous phosphorite |
| CN113019710A (en) * | 2021-03-15 | 2021-06-25 | 中国恩菲工程技术有限公司 | Combined collecting agent and flotation method of sulfide mineral containing micro-fine particles |
| CN214184813U (en) * | 2021-01-12 | 2021-09-14 | 朝阳师范高等专科学校 | Machine-building stamping device |
| CN113731637A (en) * | 2021-09-30 | 2021-12-03 | 云南磷化集团有限公司 | Flotation method for low-grade mixed collophanite |
| CN114074023A (en) * | 2021-11-18 | 2022-02-22 | 酒泉钢铁(集团)有限责任公司 | Dephosphorization process of high-phosphorus iron fine powder |
| CN115155798A (en) * | 2022-08-02 | 2022-10-11 | 承德宝通矿业有限公司 | Comprehensive recycling process for iron ore dressing tailings of ultra-lean vanadium titano-magnetite |
-
2022
- 2022-11-11 CN CN202211410897.6A patent/CN115739387A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2107963A1 (en) * | 1992-10-09 | 1994-04-10 | Nathaniel Arbiter | Tailings retreatment |
| CN102284369A (en) * | 2011-06-09 | 2011-12-21 | 北京矿冶研究总院 | Method for improving flotation recovery rate |
| CN103962214A (en) * | 2014-06-03 | 2014-08-06 | 中冶沈勘秦皇岛工程技术有限公司 | Combined beneficiation method and combined beneficiation system for comprehensive recovery of associated iron-phosphate minerals |
| CN104923368A (en) * | 2015-06-10 | 2015-09-23 | 中蓝连海设计研究院 | Ore grinding and beneficiation process for siliceous phosphorite |
| CN214184813U (en) * | 2021-01-12 | 2021-09-14 | 朝阳师范高等专科学校 | Machine-building stamping device |
| CN113019710A (en) * | 2021-03-15 | 2021-06-25 | 中国恩菲工程技术有限公司 | Combined collecting agent and flotation method of sulfide mineral containing micro-fine particles |
| CN113731637A (en) * | 2021-09-30 | 2021-12-03 | 云南磷化集团有限公司 | Flotation method for low-grade mixed collophanite |
| CN114074023A (en) * | 2021-11-18 | 2022-02-22 | 酒泉钢铁(集团)有限责任公司 | Dephosphorization process of high-phosphorus iron fine powder |
| CN115155798A (en) * | 2022-08-02 | 2022-10-11 | 承德宝通矿业有限公司 | Comprehensive recycling process for iron ore dressing tailings of ultra-lean vanadium titano-magnetite |
Non-Patent Citations (1)
| Title |
|---|
| 张作金等: ""组合捕收剂回收某铁尾矿中的磷"", 《矿产保护与利用》, no. 2, 30 April 2021 (2021-04-30), pages 112 - 116 * |
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