CN109290062B - Oxide ore flotation miscible collector and using method thereof - Google Patents
Oxide ore flotation miscible collector and using method thereof Download PDFInfo
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- CN109290062B CN109290062B CN201810893424.3A CN201810893424A CN109290062B CN 109290062 B CN109290062 B CN 109290062B CN 201810893424 A CN201810893424 A CN 201810893424A CN 109290062 B CN109290062 B CN 109290062B
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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
- B03D1/004—Organic compounds
- B03D1/01—Organic compounds containing nitrogen
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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
- B03D1/02—Froth-flotation processes
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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
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/02—Collectors
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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 discloses a miscible collecting agent for flotation of oxidized ore and a using method thereof. The oxidized ore collecting agent is prepared by mixing 2-5% by mass, 45-50% by mass, 10-15% by mass and 30-35% by mass of a mixture of a soft fatty amine, acetic acid, water, hydroxyethyl cellulose and polyacrylic acid; the method comprises the following specific steps: firstly, mixing the palmatine and the acetic acid in proportion, adding water, stirring uniformly, adding the hydroxyethyl cellulose and the polyacrylic acid, and continuously stirring until the mixture becomes white emulsion. The oxide ore mixing and dissolving collector can be applied to flotation of oxide ores such as lead-zinc oxide ores, copper oxide ores, quartz, feldspar and the like, and compared with the traditional amine cationic collector, the collector is used as an inhibitor and a collector in the flotation of the zinc oxide ores, so that the foam viscosity can be reduced, and the separation property of zinc oxide minerals can be improved. The oxidized ore collecting agent has the characteristics of small using amount, small viscosity, high dispersibility, good selectivity and the like, and is suitable for being used as an oxidized ore, particularly a zinc oxide flotation collecting agent.
Description
Technical Field
The invention relates to the field of oxidized ore flotation, in particular to a preparation method and a use method of a flotation collector for oxidized ore, especially lead-zinc oxide ore.
Background
With the decreasing of the resources of the easy-to-select zinc sulfide ores, how to develop and utilize the zinc oxide ores and realize the high-efficiency recovery of the resources of the hard-to-select zinc oxide ores is a problem to be solved urgently to meet the sustainable development requirement of the zinc mining industry at present. The zinc oxide mineral resources generally belong to refractory ores due to the characteristics of complex ore composition, various mineral types, fine embedded granularity, serious argillization, high soluble salt content and the like. The traditional zinc oxide flotation adopts a pre-desliming process, so that zinc metal loss is caused, and the ore dressing recovery rate is low. The flotation with amine collecting agent after vulcanization is the main method adopted by the flotation of zinc oxide ore at present, the flotation process of the amine sulfide method usually uses sodium sulfide as an activating agent, primary amine as a collecting agent, and the primary amine has strong capacity of collecting zinc oxide and does not need heating. However, the primary amine collecting agent has strong foamability, when the primary amine collecting agent is used for flotation, the foam quantity is large and sticky, and how to solve the problem that the amine collecting agent has large foam quantity and sticky is also a big problem in the prior art that the zinc oxide ore is recovered by a first-sulfuration and then-amine flotation method. Therefore, the development of a novel collecting agent which can collect the zinc oxide without desliming and has no sticky flotation foam is one of the important ways for realizing the high-efficiency recycling of the refractory zinc oxide ore at present. In addition, the raw materials used in the invention have wide sources, and are safe and harmless.
Disclosure of Invention
The invention aims to provide an efficient oxidized ore mixing and dissolving collecting agent and a using method thereof, and aims to solve the problems of low recovery rate and sticky flotation foam amount caused by desliming when lead-zinc oxide ore is recovered by adopting a first-vulcanization and then amine flotation method.
In order to achieve the above object, according to one aspect of the present invention, an oxidized ore collecting agent is provided, which is prepared by mixing 2-5% by mass, 45-50% by mass, 10-15% by mass, and 30-35% by mass of a soft fatty amine, acetic acid, water, hydroxyethyl cellulose, and polyacrylic acid as raw materials.
The invention relates to a miscible collecting agent for flotation of oxidized ore, which comprises the following specific steps: firstly, mixing the palmatine and the acetic acid in proportion, adding water, uniformly stirring until the palmatine is completely dissolved, and the solution becomes transparent, then adding the hydroxyethyl cellulose and the polyacrylic acid, and continuously stirring until the mixed solution becomes white emulsion, namely the oxidized ore collecting agent.
According to another aspect of the invention, the invention also provides a method for using the oxide ore flotation miscible collector, which is characterized in that the oxide ore miscible collector can be applied to flotation of oxide ores such as lead zinc oxide ores, copper oxide ores, quartz, feldspar and the like. The specific application process comprises the following steps:
1) adding a regulator and the collecting agent into raw ore, and then performing rough concentration to obtain rough concentration foam products and products in a rough concentration groove;
2) adding an inhibitor into the rough concentration foam product obtained in the step 1), and carrying out fine concentration for three times to obtain a final zinc oxide concentrate product;
3) adding the collecting agent into the product in the roughing tank in the step 1) for scavenging to obtain a tailing product.
In the application of the oxidized ore collecting agent in the step 1), the collecting agent is the oxidized ore collecting agent provided by the invention, and the addition amount of the collecting agent is 20-60g per ton of raw ore.
In the application of the oxidized ore collecting agent, in the step 2), the inhibitor is sodium hexametaphosphate.
In the application of the oxidized ore collecting agent in the step 2), the collecting agent is the oxidized ore collecting agent provided by the invention, and the addition amount of the collecting agent is 10-30g per ton of raw ore.
The efficient oxidized ore collecting agent has the following advantages:
the oxide ore miscible collector is prepared by taking the palmitylamine, the acetic acid, the water, the hydroxyethyl cellulose and the polyacrylic acid as raw materials, has strong collecting capability compared with other single cationic collectors, does not need to desliming when collecting zinc oxide ores, and avoids the loss of zinc metal.
The hydroxyethyl cellulose which is one of the components of the oxidized ore collecting agent is an efficient inhibitor, has obvious inhibition effect on carbonate and silicate gangue minerals, and improves the selectivity of the collecting agent. Because general inhibitor all has a certain degree of defoaming effect, the foam viscosity of amine collector flotation is also reduced simultaneously.
One of the components of the oxidized ore collecting agent is polyacrylic acid which is an excellent dispersing agent and defoaming agent, and the polyacrylic acid can disperse slime after being added, can generate obvious defoaming effect, and can effectively solve the problem that the amine collecting agent has large foam flotation amount and is sticky.
The oxide ore miscible collector can be applied to the flotation of zinc oxide, compared with a single cationic collector, the inhibitor is mixed, the collector has stronger selective collecting capacity in the flotation process of zinc oxide minerals, on one hand, gangue inhibitor is added for mixing, slime is dispersed, the inhibition of carbonate and silicate gangue minerals is enhanced, and the addition system of the cationic collector is optimized; on the other hand, a miscible collecting agent is formed, so that the sorting property of zinc oxide is greatly improved, the zinc grade and the recovery rate of zinc oxide concentrate obtained by flotation are both improved, the sorting effect is obviously improved, and the economic benefit is obvious.
In addition to the features and advantages described above, the present invention has additional features and advantages. The present invention will be further described with reference to examples.
Drawings
Figure 1 is a process flow diagram for use in a method of using an oxidized ore flotation miscible collector of the present invention.
Detailed Description
The miscible collector for flotation of the oxidized ore has the characteristics of small using amount, small viscosity, high dispersibility, good selectivity and the like, and is suitable for flotation of the oxidized ore, particularly lead zinc oxide ore, copper oxide ore, quartz and feldspar.
Example 1
The zinc grade of tailings obtained after the lead-zinc sulfide ore is separated from certain lead-zinc ore in Sichuan is 2.56%, more than 81% of zinc exists in the form of calamine and calamine, and the gangue minerals have higher contents of carbonate minerals such as dolomite, calcite and the like. Because carbonate gangue minerals have low hardness, the ore grinding process is easy to argillization, a large amount of slime is generated, great adverse effect is caused to the flotation process, and the zinc metal loss is caused by the technical process of desliming and then carrying out flotation in the field process. The oxide ore flotation mixing collector is adopted to carry out a non-desliming flotation closed-loop test on the ore.
Adding 5Kg/t of sodium sulfide serving as a regulator and 38g/t of the collecting agent into raw ore, and then performing rough separation to obtain rough separation foam products and products in a rough separation groove; adding inhibitor sodium hexametaphosphate into the roughing foam product, and carrying out concentration for three times to obtain a final zinc oxide concentrate product; and adding 19g/t of the collecting agent into the product in the roughing tank, and scavenging to obtain a tailing product. The concentrating middlings and the scavenging middlings are returned in sequence.
The results of comparative tests on zinc oxide flotation with the collectors of the invention and the field collectors are shown in table 1.
Table 1 comparative test results (%)% of zinc oxide concentrate obtained by two agents
It can be seen from the test results in table 1 that better zinc oxide flotation indexes are obtained using the oxidized ore collector of the present invention without desliming.
Example 2
The zinc grade of a certain zinc oxide ore raw ore in Yunnan is 3.17 percent, more than 85 percent of zinc exists in the form of calamine, and the gangue minerals have high content of carbonate minerals such as dolomite, calcite and the like. The flotation closed-circuit test is carried out on the ore by adopting the miscible collector for flotation of the oxidized ore.
Adding 4.5Kg/t of sodium sulfide serving as a regulator and 24g/t of the collecting agent into raw ore, and then performing rough separation to obtain rough separation foam products and products in a rough separation groove; adding inhibitor water glass into the roughed foam product, and carrying out three-time fine selection to obtain a final zinc oxide concentrate product; and adding 12g/t of the collecting agent into the product in the roughing tank, and scavenging to obtain a tailing product. The concentrating middlings and the scavenging middlings are returned in sequence.
The results of comparative tests on zinc oxide ore flotation with the collectors of the present invention and in situ collectors are shown in table 2.
Table 2 comparative test results (%) of zinc concentrate obtained by two agents
| Species of collector | Raw ore Zn grade | Yield of | Concentrate Zn grade | Zn recovery rate |
| The invention relates to a collecting agent | 3.16 | 8.21 | 32.71 | 84.98 |
| On-site collecting agent | 3.16 | 10.74 | 23.67 | 80.45 |
It can be seen from tables 1 and 2 that, when the flotation test is performed on the zinc oxide ore with high carbonate mineral content such as dolomite, calcite and the like, compared with the field agent, the oxidized ore collecting agent of the invention obtains better flotation indexes and can be used as a good collecting agent for the oxidized ore such as zinc oxide ore and the like.
Example 3
The zinc grade of a raw ore of a certain zinc oxide ore in Gansu is 3.81%, the main zinc is mainly contained in calamine and calamine, the contents of carbonate gangue minerals such as dolomite, calcite and the like in the gangue minerals are high, and a small amount of silicate such as mica, serpentine and the like is also contained. The flotation closed-circuit test is carried out on the ore by adopting the miscible collector for flotation of the oxidized ore.
Adding 4Kg/t of sodium sulfide serving as a regulator and 60g/t of the collecting agent into raw ore, and then performing rough separation to obtain rough separation foam products and products in a rough separation groove; adding inhibitor water glass into the roughed foam product, and carrying out three-time fine selection to obtain a final zinc oxide concentrate product; and adding 30g/t of collecting agent into the product in the roughing tank, and scavenging to obtain a tailing product. The concentrating middlings and the scavenging middlings are returned in sequence.
The results of comparative tests of zinc oxide ore flotation with the collectors of the invention and the field collectors are shown in table 3.
Table 3 comparative test results (%) -for zinc oxide concentrate obtained with two agents
| Type and amount of collector (g/ton) | Raw ore Zn grade | Yield of | Concentrate Zn grade | Zn recovery rate |
| Collector 60 of the invention | 3.81 | 8.25 | 33.07 | 71.61 |
| In situ collector 90 | 3.81 | 9.93 | 25.15 | 65.55 |
From the test results in table 3, it can be seen that the collector of the present invention not only has better flotation effect than the field collector at low temperature, but also has less usage than the field collector, thus saving production cost.
Claims (7)
1. The oxidized ore miscible collector is characterized by being prepared by mixing 2-5% of palmatine, 2-5% of acetic acid, 45-50% of hydroxyethyl cellulose, 10-15% of polyacrylic acid and 30-35% of polyacrylic acid in percentage by mass.
2. An oxidized ore miscible collector according to claim 1, characterized by the specific steps of formulation:
firstly, mixing the palmatine and the acetic acid in proportion, adding water, uniformly stirring until the palmatine is completely dissolved, and the solution becomes transparent, then adding the hydroxyethyl cellulose and the polyacrylic acid, and continuously stirring until the mixed solution becomes white emulsion, namely the oxidized ore collecting agent.
3. The application of the oxide ore miscible collector in claim 2, wherein the miscible collector can be applied to flotation of lead-zinc oxide ores, copper oxide ores, quartz and feldspar oxide ores.
4. The use of an oxidized ore miscible collector according to claim 3, wherein the specific application process comprises the following steps:
1) adding a regulator and the collecting agent into raw ore, and then performing rough concentration to obtain rough concentration foam products and products in a rough concentration groove;
2) adding an inhibitor into the rough concentration foam product obtained in the step 1), and carrying out fine concentration for three times to obtain a final zinc oxide concentrate product;
3) adding the collecting agent into the product in the roughing tank in the step 1) for scavenging to obtain a tailing product.
5. The use of an oxidized ore miscible collector according to claim 4, wherein the amount of the oxidized ore miscible collector added in step 1) is 20-60g per ton of raw ore.
6. The use of an oxidized ore miscible collector according to claim 4, wherein the inhibitor of step 2) is sodium hexametaphosphate.
7. The use of an oxidized ore miscible collector according to claim 4, wherein the amount of the oxidized ore miscible collector added in step 3) is 10-30g per ton of raw ore.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110976097B (en) * | 2019-11-15 | 2021-10-26 | 南华大学 | Flotation method for zinc oxide in sulfide ore tailings |
| CN112718252B (en) * | 2020-12-15 | 2022-06-03 | 长沙矿山研究院有限责任公司 | Flotation recovery method for high-calcium-magnesium high-argillaceous mixed lead-zinc ore |
| CN113751204A (en) * | 2021-09-13 | 2021-12-07 | 紫金矿业集团股份有限公司 | Collecting agent applied to flotation of quartzite type zinc oxide ores and calamine flotation method |
| CN115090422A (en) * | 2022-06-17 | 2022-09-23 | 山东理工大学 | Amino acid type collecting agent and preparation method and application thereof |
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| WO2017127704A1 (en) * | 2016-01-21 | 2017-07-27 | Mlinar Matthew Albert | Cationic flotation of silica and apatite from oxidized iron ores at natural ph |
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| CN104289319A (en) * | 2008-07-25 | 2015-01-21 | 塞特克技术公司 | Flotation reagents and flotation processes utilizing same |
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| WO2017127704A1 (en) * | 2016-01-21 | 2017-07-27 | Mlinar Matthew Albert | Cationic flotation of silica and apatite from oxidized iron ores at natural ph |
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