CN115055286A - Method for promoting cassiterite medicament collecting effect - Google Patents
Method for promoting cassiterite medicament collecting effect Download PDFInfo
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- CN115055286A CN115055286A CN202210912663.5A CN202210912663A CN115055286A CN 115055286 A CN115055286 A CN 115055286A CN 202210912663 A CN202210912663 A CN 202210912663A CN 115055286 A CN115055286 A CN 115055286A
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- tin
- ore
- cassiterite
- promoting
- flotation
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- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims abstract description 31
- 230000000694 effects Effects 0.000 title claims abstract description 20
- 230000001737 promoting effect Effects 0.000 title claims abstract description 20
- 239000003814 drug Substances 0.000 title claims abstract description 19
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 52
- 238000000227 grinding Methods 0.000 claims abstract description 48
- 238000005188 flotation Methods 0.000 claims abstract description 25
- 238000003756 stirring Methods 0.000 claims abstract description 23
- 239000012141 concentrate Substances 0.000 claims abstract description 20
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 18
- VDEUYMSGMPQMIK-UHFFFAOYSA-N benzhydroxamic acid Chemical compound ONC(=O)C1=CC=CC=C1 VDEUYMSGMPQMIK-UHFFFAOYSA-N 0.000 claims abstract description 15
- RLJMLMKIBZAXJO-UHFFFAOYSA-N lead nitrate Chemical compound [O-][N+](=O)O[Pb]O[N+]([O-])=O RLJMLMKIBZAXJO-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000004088 foaming agent Substances 0.000 claims abstract description 8
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 13
- 239000011707 mineral Substances 0.000 claims description 13
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 238000006477 desulfuration reaction Methods 0.000 claims description 3
- 230000023556 desulfurization Effects 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims 6
- 238000003801 milling Methods 0.000 claims 3
- 238000002156 mixing Methods 0.000 abstract description 6
- 238000000926 separation method Methods 0.000 abstract description 4
- 238000007796 conventional method Methods 0.000 abstract 1
- 238000011084 recovery Methods 0.000 description 9
- 230000005484 gravity Effects 0.000 description 4
- 230000001502 supplementing effect Effects 0.000 description 4
- 229910021645 metal ion Inorganic materials 0.000 description 3
- 239000013043 chemical agent Substances 0.000 description 2
- DJHGAFSJWGLOIV-UHFFFAOYSA-N Arsenic acid Chemical compound O[As](O)(O)=O DJHGAFSJWGLOIV-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 244000062250 Kaempferia rotunda Species 0.000 description 1
- 235000013422 Kaempferia rotunda Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 229940000488 arsenic acid Drugs 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000003446 ligand Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229910052979 sodium sulfide Inorganic materials 0.000 description 1
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 1
- 230000031068 symbiosis, encompassing mutualism through parasitism Effects 0.000 description 1
Images
Classifications
-
- 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
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/10—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with one or a few disintegrating members arranged in the container
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
- B02C17/20—Disintegrating members
-
- 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
- B03D2201/02—Collectors
-
- 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
- B03D2201/04—Frothers
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a method for promoting the collecting effect of a cassiterite medicament, which comprises the following steps: s1, respectively preparing lead nitrate and benzohydroxamic acid into solutions, fully and uniformly mixing the solutions to prepare a combined medicament for later use, and grinding the tin ore and the combined medicament in an ore grinding machine, wherein the grinding concentration is 45-70%; s2, stirring and uniformly mixing the ground ore products to ensure that the flotation concentration of the ore pulp is 32-38%, and adding a foaming agent; and S3, after the size mixing is finished, carrying out flotation to obtain tin concentrate. Compared with the conventional method of adding the combined reagent after ore grinding, the method can greatly improve the cassiterite separation index, and is suitable for treating tin rough concentrate and tin middling. And the method is simple to operate and easy to popularize and apply on a large scale.
Description
Technical Field
The invention relates to the technical field of mineral processing, in particular to a method for promoting the tin stone medicament collecting effect, which is suitable for sorting and enriching tin stone rough concentrate and tin middling.
Background
Cassiterite is the most prominent tin-containing mineral from which tin is extracted in industrial production. Cassiterite has the characteristics of high specific gravity and brittle nature. Therefore, gravity separation and selective ore grinding are two distinctive features in the cassiterite separation process flow. For coarse-fraction cassiterite, gravity separation is a common recovery method, and for fine-fraction cassiterite, only a flotation method can be adopted for recovery.
In order to improve the cassiterite flotation index, lead ions are introduced to be used as a cassiterite activating agent, and collecting agents with high selectivity, such as hydroximic acid, arsenic acid and the like, are used as cassiterite collecting agents. On the basis, Chinese patent CN105618272A discloses a metal ion complex collector and a preparation method and application thereof, and the metal ion complex collector prepared by combining metal ions and ligands has very good selectivity on cassiterite.
Grinding ore as a pretreatment operation can provide qualified products for the next operation. For example, lime, sodium sulfide and other chemical agents are added into ore grinding operation to strengthen the action between the chemical agents and minerals. And because the surface of the mineral is broken and dissociated in the ore grinding process, a fresh surface is exposed, and the agent is more easily adsorbed on the surface of the mineral. The cassiterite is brittle and easy to over-grind, the ore grinding operation is an important factor influencing the sorting index of the cassiterite, but only the monomer dissociation of the mineral is realized, and the precondition can be created for the next sorting operation. For a large amount of gravity concentration rough concentrate, middlings and cassiterite ores with embedded fine granularity, a 'regrinding and recleaning' process is often adopted to realize efficient recovery of cassiterite.
Disclosure of Invention
The invention aims to provide a method for promoting the collecting effect of a cassiterite medicament, which can effectively improve the sorting index of coarse tin concentrate and middlings with embedded fine granularity and improve the resource utilization rate. And the operation is simple and safe, and the large-scale popularization and application are easy.
In order to achieve the purpose, the invention adopts the technical scheme that: a method for promoting the collecting effect of cassiterite agent is to add the combined agent prepared from lead nitrate and benzohydroxamic acid and tin ore into an ore mill to grind the ore, and then to float the ore after adding foaming agent to obtain tin concentrate.
The method for promoting the collecting effect of the cassiterite medicament comprises the following steps:
s1: lead nitrate and benzohydroxamic acid are respectively prepared into solutions with the mass concentration of 1 percent, then the solutions are stirred for 3min in a stirring barrel, and the solutions are fully and uniformly mixed to prepare a combined medicament for standby;
s2: putting the tin ore to be sorted and the prepared combined reagent S1 into an ore grinding machine together for ore grinding, wherein the ore grinding concentration range is 45-70%;
s3: placing the ore grinding product obtained in the step S2 into a stirring barrel for stirring, and then adding a foaming agent, wherein the stirring time is 2min, so that ore pulp is fully and uniformly mixed, and the flotation concentration is controlled to be 32% -38%;
s4: and (4) carrying out flotation on the ore pulp obtained in the S3 to obtain tin concentrate.
The grinding medium is steel ball and steel bar.
S1, respectively preparing lead nitrate and benzohydroxamic acid into solutions with mass concentration of 1%, and then respectively taking out the two solutions to prepare the combined medicament, wherein the proportion range of the lead nitrate and the benzohydroxamic acid is 1: 1 to 4.
S2 when grinding tin ore, the prepared combination agent and grinding water are added, mixed evenly and then added into an ore grinding machine.
The invention has the following advantages:
(1) the method can effectively improve the sorting index of the tin rough concentrate and the middling with the kaempferia fine granularity and improve the resource utilization rate.
(2) The method is simple and safe to operate and easy to popularize and apply in a large scale.
Drawings
Fig. 1 is a schematic flow chart of a method for promoting the effect of collecting cassiterite reagents according to the present invention.
Detailed Description
The technical solution of the present invention is further described in detail with reference to fig. 1 and the embodiment.
Example 1
This example is an example of the method for promoting the collecting effect of the cassiterite reagent according to the present invention, the used sample is a reselected cassiterite rough concentrate in cantonese, which contains 36.08% of tin and 53% of-0.074 mm, and the specific operation steps are as follows:
s1: firstly, respectively preparing lead nitrate and benzohydroxamic acid into solutions with the mass concentration of 1%, wherein the ratio of the lead nitrate to the benzohydroxamic acid is 1: 2, then stirring in a stirring barrel for 3min, and fully and uniformly mixing to prepare a combined medicament for later use;
s2: placing the tin ore to be sorted and the prepared combined reagent S1 in an ore grinding machine together for ore grinding, wherein the combined reagent needs to be mixed with ore grinding replenishing water in advance and then added into the ore grinding machine together with the tin ore, the using amount of the combined reagent is 200g/t, the ore grinding concentration is controlled to be 50% by adjusting the replenishing water, the tin ore is gravity-separated rough concentrate, the grade of tin is high, an ore grinding medium adopts a steel bar, and an ore grinding product with the thickness of-0.074 mm is 90% after ore grinding operation;
s3: placing the ore grinding product in the S2 into a stirring barrel for stirring, and then adding a foaming agent, wherein the stirring time is 2min, so that the ore pulp is fully and uniformly mixed, and the flotation concentration is 33%;
s4: and (4) carrying out flotation on the ore pulp obtained in the S3 to obtain tin concentrate.
By adopting the process flow, the recovery index of 67.48% of tin grade and 95.07% of tin recovery rate is obtained through one-time flotation operation.
Example 2
This example is another example of the method for promoting the collecting effect of the cassiterite reagent according to the present invention, the used sample is cassiterite middlings from some flotation in Guangxi, the tin content is 8.71%, and the-0.074 mm is 81%, and the specific operation steps are as follows:
s1: firstly, respectively preparing lead nitrate and benzohydroxamic acid into solutions with the mass concentration of 1%, wherein the ratio of the lead nitrate to the benzohydroxamic acid is 1: 3, stirring in a stirring barrel for 3min, and fully and uniformly mixing to prepare a combined medicament for later use;
s2: putting the tin ore to be sorted and the prepared combined reagent S1 into an ore grinding machine together for ore grinding, wherein the combined reagent needs to be mixed with ore grinding supplementing water in advance and then added into the ore grinding machine together with the tin ore, the dosage of the combined reagent is 300g/t, the ore grinding concentration is controlled to 63% by adjusting the supplementing water, the tin middling and gangue minerals are in close symbiosis, an ore grinding medium adopts steel balls, and the ore grinding product with the thickness of-0.074 mm is 98% after ore grinding operation;
s3: placing the ore grinding product obtained in the step S2 into a stirring barrel to be stirred, and then adding a foaming agent, wherein the stirring time is 2min, so that ore pulp is fully and uniformly mixed, and the flotation concentration is 35%;
s4: and (4) carrying out flotation on the ore pulp obtained in the S3 to obtain tin concentrate.
By adopting the process flow, the recovery index of 16.35 percent of tin grade and 91.92 percent of tin recovery rate is obtained through one-time flotation operation.
Example 3
This example is another example of the method for promoting the collecting effect of the cassiterite agent, the used sample is tin flotation rough concentrate after certain desulfurization operation in Hunan, the tin content is 1.89%, the-0.074 mm is 85%, and the specific operation steps are as follows:
s1: firstly, respectively preparing lead nitrate and benzohydroxamic acid into solutions with the mass concentration of 1%, wherein the ratio of the lead nitrate to the benzohydroxamic acid is 1: 3.5, stirring in a stirring barrel for 3min, and fully and uniformly mixing to prepare a combined medicament for later use;
s2: putting the tin ore to be sorted and the prepared combined medicament of S1 into an ore grinding machine for ore grinding, wherein the combined medicament needs to be mixed with ore grinding supplementing water in advance and then is added into the ore grinding machine together with the tin ore, the dosage of the combined medicament is 350g/t, the ore grinding concentration is controlled to 67% by adjusting the supplementing water, the ore grinding medium is steel balls, and the ore grinding product with the particle size of-0.045 mm is 90% after ore grinding operation;
s3: placing the ore grinding product in the S2 into a stirring barrel for stirring, and then adding a foaming agent, wherein the stirring time is 2min, so that the ore pulp is fully and uniformly mixed, and the flotation concentration is 38%;
s4: and (4) carrying out flotation on the ore pulp obtained in the S3 to obtain tin concentrate.
By adopting the process flow, the recovery index of 6.20 percent of tin grade and 94.35 percent of tin recovery rate is obtained through one-time flotation operation.
The above embodiments are illustrative of the present invention, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the invention. All equivalent changes, modifications and the like which are within the scope of the application of the present invention are intended to be covered by the present invention.
Claims (9)
1. A method for promoting the collecting effect of a cassiterite medicament is characterized by comprising the following steps: the combined reagent prepared from lead nitrate and benzohydroxamic acid and tin ore are added into an ore mill together for ore milling, and a foaming agent is added for flotation to obtain tin concentrate.
2. A method of promoting the effect of a cassiterite reagent collector according to claim 1, comprising the steps of:
s1: lead nitrate and benzohydroxamic acid are respectively prepared into solutions with the mass concentration of 1 percent, then the solutions are stirred for 3min in a stirring barrel, and the solutions are fully and uniformly mixed to prepare a combined medicament for standby;
s2: placing tin ore to be sorted and the prepared combined medicament of S1 into an ore mill together for ore milling, wherein the ore milling concentration range is 45-70%;
s3: placing the ore grinding product obtained in the step S2 into a stirring barrel for stirring, and then adding a foaming agent, wherein the stirring time is 2min, so that ore pulp is fully and uniformly mixed, and the flotation concentration is controlled to be 32% -38%;
s4: and (4) carrying out flotation on the ore pulp obtained in the S3 to obtain tin concentrate.
3. A method of promoting the effect of a cassiterite reagent collector according to claim 1, wherein: the grinding medium is steel ball and steel bar.
4. The method for promoting the collecting effect of the cassiterite reagent according to claim 1, wherein in the step S1, the lead nitrate and the benzohydroxamic acid are respectively prepared into a solution with a mass concentration of 1%, then the two solutions are respectively taken out to be prepared into a combined reagent, and the proportion range of the lead nitrate to the benzohydroxamic acid is 1: 1 to 4.
5. The method for promoting the tin stone agent collecting effect according to claim 1, wherein the S2 tin ore is ground, the prepared combined agent and the grinding water are added, mixed uniformly and then added into a grinding machine.
6. The method of promoting the effect of a cassiterite agent collector recited in claim 1, wherein the tin ore is a tin flotation rougher concentrate after a desulfurization operation, or a tin flotation rougher concentrate.
7. A method for promoting the collecting effect of a cassiterite collecting agent according to claim 6, wherein the mineral raw material is crude tin flotation concentrate after desulfurization operation, tin content is 1.89%, and-0.074 mm is 85%.
8. A method for promoting the collecting effect of a cassiterite reagent according to claim 6, wherein the mineral raw material is the flotation cassiterite middlings, the tin content is 8.71%, and the thickness of the mineral raw material is 81% in the range of-0.074 mm.
9. A method for promoting the collecting effect of a cassiterite reagent according to claim 6, wherein the mineral raw material is a crude tin flotation concentrate, the tin content is 1.89%, and the thickness of the mineral raw material is 85% when the mineral raw material is-0.074 mm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210478401 | 2022-05-05 | ||
| CN2022104784012 | 2022-05-05 |
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|---|---|
| CN115055286A true CN115055286A (en) | 2022-09-16 |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1538620A (en) * | 1924-02-19 | 1925-05-19 | Canda Ferdinand Mora | Ball and rod mill |
| GB1110643A (en) * | 1966-02-23 | 1968-04-24 | Nathaniel Arbiter | Benefication of cassiterite ores by froth flotation |
| CN1680042A (en) * | 2004-04-05 | 2005-10-12 | 黎东明 | Step-by-step flotation technology for tin-lead-zinc sulfide ore |
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| CN102218374A (en) * | 2010-04-13 | 2011-10-19 | 中南大学 | Method for selectively milling cassiterite multi-metal sulfides ores |
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-
2022
- 2022-07-30 CN CN202210912663.5A patent/CN115055286A/en active Pending
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