CN112495590A - Magnesium-containing silicate mineral inhibitor and application thereof - Google Patents
Magnesium-containing silicate mineral inhibitor and application thereof Download PDFInfo
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- CN112495590A CN112495590A CN202110012491.1A CN202110012491A CN112495590A CN 112495590 A CN112495590 A CN 112495590A CN 202110012491 A CN202110012491 A CN 202110012491A CN 112495590 A CN112495590 A CN 112495590A
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- magnesium
- silicate mineral
- inhibitor
- containing silicate
- copper
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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
- B03D1/018—Mixtures of inorganic and organic compounds
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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
- B03D2201/06—Depressants
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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
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Abstract
The invention discloses a magnesium-containing silicate mineral inhibitor and application thereof. The application is the application of the magnesium-containing silicate mineral inhibitor in the flotation process of magnesium-containing silicate minerals. The talc inhibitor suspension can inhibit talc alone without inhibiting molybdenite, and compared with the traditional method for inhibiting talc alone without inhibiting sulfur, the method has the advantages that the grade of copper concentrate is improved by 5-8%, the grade of molybdenum in copper-molybdenum bulk concentrate is improved by 5-10%, the content of MgO is reduced by 50-80%, and the gangue mineral mixing rate in copper-molybdenum bulk concentrate is reduced by 40%. The method has the advantages of simple process, less raw material consumption, low cost, no need of heating, environmental friendliness and no pollution, and effectively solves the problem that the magnesium-containing silicate minerals such as talc and the like are difficult to separate from the useful minerals such as copper, molybdenum and the like by flotation.
Description
Technical Field
The invention belongs to the technical field of chemical industry, and particularly relates to a magnesium-containing silicate mineral inhibitor and application thereof.
Background
Along with the continuous development and utilization of copper and molybdenum resources, the resource amount of easily-selected copper and molybdenum sulfide ores is gradually reduced, the ores are poor, fine and hybridized more and more serious, and the ore dressing difficulty is increased more and more. Some foreign high-talc copper-molybdenum ore contains multiple metals such as copper, molybdenum, lead, zinc and the like, most of copper mainly exists in chalcopyrite, copper blue and chalcocite in the form of independent minerals, and part of copper exists in biotite, serpentine, chlorite, talc and tremolite in the form of homogeneous phases or mechanical mixing. The gangue minerals such as talc and the like are easy to argillize in the ore grinding process, so that the gangue minerals such as talc and the like are easy to adsorb the surface of copper molybdenum sulfide minerals, the action of agents such as collecting agents, foaming agents and the like and the copper molybdenum sulfide minerals is prevented, the floatability of the talc is close to that of chalcopyrite and molybdenite, the floatability is good, a small amount of foaming agents can float to copper molybdenum mixed concentrate, the recovery of copper and molybdenum is influenced, and the flotation difficulty is increased continuously.
Therefore, there is a need to develop a talc flotation inhibitor and a suitable separation method for separating talc-type copper-molybdenum sulfide ores containing copper, sulfur, molybdenum, lead, zinc and the like from magnesium-containing silicate minerals such as talc, serpentine and chlorite, so as to maximize the resource utilization rate.
Disclosure of Invention
The invention provides a method for inhibiting gangue minerals such as talc and the like and improving the grade of copper-molybdenum bulk concentrates in the flotation separation process of copper, molybdenum and sulfur, aiming at the problem that the flotation of useful minerals is influenced because the floatability of magnesium-containing silicate easy-to-float gangue minerals such as talc, serpentine and chlorite is similar to that of useful minerals such as chalcopyrite and molybdenite in the flotation process.
The invention relates to an inhibitor capable of selectively reducing floatability of magnesium-containing silicate minerals such as talc and the like, which reduces floatability of gangue minerals such as talc and the like without reducing floatability of copper minerals and molybdenum minerals by the contact action of a medicament and the surface of the ores in an ore pulp system in which minerals such as chalcopyrite, molybdenite and the like coexist, thereby achieving the purpose of separating the magnesium-containing silicate minerals such as talc and the like from useful minerals such as copper, molybdenum and the like.
The first purpose of the invention is to provide a magnesium-containing silicate mineral inhibitor; the second purpose is to provide the application of the magnesium silicate mineral inhibitor.
The first purpose of the invention is realized by that the magnesium silicate mineral inhibitor consists of DH and sodium hexametaphosphate, and the DH consists of guar gum, carboxymethyl cellulose CMC and lignin.
The second purpose of the invention is realized by the application of the magnesium-containing silicate mineral inhibitor in the flotation process of magnesium-containing silicate minerals.
The invention has the beneficial effects that:
1. under the condition that suspension prepared by using DH and sodium hexametaphosphate according to the ratio of 1: 1-1: 3 is used as a talc inhibitor and butyl xanthate or Z-200 is used as a copper-molybdenum flotation collector, compared with the traditional method for simply inhibiting sulfur and not inhibiting talc, the method has the advantages that the grade of copper concentrate is improved by 5-8%, the grade of molybdenum in the copper concentrate is improved by 5-10%, the content of MgO is reduced by 50-80%, and the gangue mineral mixing rate is reduced by 40%.
2. Under the condition that suspension prepared from DH and sodium hexametaphosphate according to the ratio of 1: 1-1: 3 is used as a talc inhibitor and butyl xanthate or Z-200 is used as a copper-molybdenum collecting agent, the using amount of lime as a sulfur inhibitor is reduced by 30-50%.
3. The talc inhibitor suspension can independently inhibit talc without inhibiting molybdenite, and solves the problem that the molybdenum mineral enters flotation tailings because the floatability of the molybdenum mineral is reduced while the gangue is inhibited by a conventional inhibitor.
4. The method has the advantages of simple process, less raw material consumption, low cost, no need of heating, environmental friendliness, no pollution and capability of effectively solving the problem that the magnesium-containing silicate minerals such as talc and the like are difficult to separate from the useful minerals such as copper, molybdenum and the like by flotation.
Drawings
FIG. 1 is a schematic roughing diagram of an overall embodiment of the present invention.
Detailed Description
The present invention is further illustrated by the following examples, which are not intended to be limiting in any way, and any modifications or alterations based on the teachings of the present invention are intended to fall within the scope of the present invention.
The magnesium-containing silicate mineral inhibitor consists of DH and sodium hexametaphosphate, wherein the DH consists of guar gum, carboxymethyl cellulose (CMC) and lignin.
The mass ratio of DH to sodium hexametaphosphate is 1: 1-1: 3.
The mass ratio of the guar gum to the carboxymethyl cellulose CMC to the lignin is (3-5): (2-4): (1-2).
The application of the magnesium-containing silicate mineral inhibitor is the application of the magnesium-containing silicate mineral inhibitor in a magnesium-containing silicate mineral flotation process.
The application specific operation of the magnesium-containing silicate mineral inhibitor in the magnesium-containing silicate mineral flotation process comprises the steps of ore treatment, magnesium-containing silicate mineral inhibitor preparation and flotation, and specifically comprises the following steps:
A. ore treatment: crushing raw material ores, adding water, grinding the ores until the ore pulp with the particle size of-20 mu m accounts for 75-80%, and adjusting the pH value of the ore pulp to 7-9 to obtain a material a;
B. preparing a magnesium silicate mineral inhibitor: adding water into a magnesium-containing silicate mineral inhibitor to prepare a suspension with the mass percentage concentration of 8-15% to obtain a material b;
C. flotation: adding 4000-6000 g of sulfur inhibitor, 300-1000 g of material b, 200-500 g of copper-molybdenum collecting agent and 20-50 g of foaming agent into each ton of raw material ore, fully and uniformly stirring, aerating, and floating copper and molybdenum ore under the condition that the pH value of ore pulp is 7-9.
The magnesium-containing silicate mineral is high-talc copper-molybdenum sulfide ore containing copper, sulfur, molybdenum, lead and zinc, talc, serpentine or chlorite.
The magnesium-containing silicate mineral is copper-molybdenum sulfide ore containing useful minerals such as copper, molybdenum, lead, zinc and the like with high content of magnesium-containing silicate gangue minerals such as talc, serpentine, chlorite and the like.
The sulfur inhibitor is lime.
The copper molybdenum collector is butyl xanthate or Z-200.
The DH consists of guar gum, carboxymethyl cellulose CMC and lignin. The application method comprises the steps of grinding ore pulp, preparing a talc inhibitor suspension from DH and sodium hexametaphosphate according to the proportion of 1: 1-1: 3 under the condition that the pH value is = 7-9, adding a proper amount of foaming agent into lime serving as a sulfur inhibitor and butyl xanthate or Z-200 serving as a copper-molybdenum flotation collector, fully and uniformly stirring, inflating, and carrying out flotation separation on copper, molybdenum and sulfur.
The talc inhibitor suspension can inhibit talc alone without inhibiting molybdenite, and compared with the traditional method for inhibiting talc alone without inhibiting sulfur, the method has the advantages that the grade of copper concentrate is improved by 5-8%, the grade of molybdenum in copper-molybdenum bulk concentrate is improved by 5-10%, the content of MgO is reduced by 50-80%, and the gangue mineral mixing rate in copper-molybdenum bulk concentrate is reduced by 40%. The method has the advantages of simple process, less raw material consumption, low cost, no need of heating, environmental friendliness and no pollution, and effectively solves the problem that the magnesium-containing silicate minerals such as talc and the like are difficult to separate from the useful minerals such as copper, molybdenum and the like by flotation.
The invention is further illustrated by the following specific examples:
example 1
The ore is mixed copper-molybdenum ore in Yunnan province, non-ferrous metal mineral containing copper, molybdenum, lead, zinc, etc., and gangue mineral containing talc, serpentine, etc.
(1) The inhibitor is mixed by DH and sodium hexametaphosphate in a ratio of 1:2, and the mass concentration is 10%;
(2) the DH medicament formula is formed by mixing 40 percent of guar gum, 40 percent of carboxymethyl cellulose (CMC) and 20 percent of lignin by mass percent respectively;
(3) ore treatment: crushing copper-molybdenum ore containing talc and serpentine, and adding water to grind the ore until the ore pulp with the particle size of-20 mu m accounts for 79%;
(4) flotation: adding 4000 g of sulfur inhibitor, 500g of talc inhibitor suspension, 200 g of copper-molybdenum flotation collector and 20 g of foaming agent into each ton of ore, fully and uniformly stirring, aerating, and floating copper and molybdenum ores under the condition that the pH value of ore pulp is 7.0. The sulfur inhibitor is lime, and the copper molybdenum flotation collector is butyl xanthate.
Example 2
The ore is high talc type copper molybdenum ore, non-ferrous metal mineral containing copper, molybdenum, lead, zinc, etc., and gangue mineral containing talc, serpentine, chlorite, etc.
(1) The talc inhibitor is prepared by mixing DH and sodium hexametaphosphate in a ratio of 1:3, and the mass concentration is 15%;
(2) the DH medicament formula is formed by mixing 50 percent of guar gum, 40 percent of carboxymethyl cellulose (CMC) and 10 percent of lignin by mass percent respectively;
(3) ore treatment: crushing copper-molybdenum ore containing talc, serpentine and chlorite, and adding water to grind the ore until the ore pulp with the particle size of-20 mu m accounts for 78%;
(4) flotation: 5000 g of sulfur inhibitor, 600 g of talc inhibitor suspension, 300 g of copper-molybdenum flotation collector and 30 g of foaming agent are added into each ton of ore, the mixture is fully stirred uniformly and aerated, and copper and molybdenum ores are floated under the condition that the pH value of ore pulp is 8.0. The sulfur inhibitor is lime, and the copper-molybdenum flotation collector is Z-200.
Claims (8)
1. The magnesium-containing silicate mineral inhibitor is characterized by consisting of DH and sodium hexametaphosphate, wherein the DH consists of guar gum, carboxymethyl cellulose (CMC) and lignin.
2. The magnesium silicate mineral inhibitor as claimed in claim 1, wherein the mass ratio of DH to sodium hexametaphosphate is 1: 1-1: 3.
3. The magnesium-containing silicate mineral inhibitor as claimed in claim 1, wherein the mass ratio of guar gum, carboxymethyl cellulose CMC and lignin is (3-5): (2-4): (1-2).
4. The application of the magnesium-containing silicate mineral inhibitor as defined in any one of claims 1 to 3, wherein the magnesium-containing silicate mineral inhibitor is applied to a flotation process of magnesium-containing silicate minerals.
5. The application of the magnesium-containing silicate mineral inhibitor in the magnesium-containing silicate mineral flotation process is characterized in that the specific operation of the magnesium-containing silicate mineral inhibitor in the magnesium-containing silicate mineral flotation process comprises ore treatment, magnesium-containing silicate mineral inhibitor configuration and flotation steps, and specifically comprises the following steps:
A. ore treatment: crushing raw material ores, adding water, grinding the ores until the ore pulp with the particle size of-20 mu m accounts for 75-80%, and adjusting the pH value of the ore pulp to 7-9 to obtain a material a;
B. preparing a magnesium silicate mineral inhibitor: adding water into a magnesium-containing silicate mineral inhibitor to prepare a suspension with the mass percentage concentration of 8-15% to obtain a material b;
C. flotation: adding 4000-6000 g of sulfur inhibitor, 300-1000 g of material b, 200-500 g of copper-molybdenum collecting agent and 20-50 g of foaming agent into each ton of raw material ore, fully and uniformly stirring, aerating, and floating copper and molybdenum ore under the condition that the pH value of ore pulp is 7-9.
6. The use of the magnesium-containing silicate mineral inhibitor as claimed in claim 4 or 5, wherein the magnesium-containing silicate mineral is copper-molybdenum sulfide ore of high talc type containing copper, sulfur, molybdenum, lead and zinc, talc, serpentine or chlorite.
7. The use of the magnesium silicate mineral inhibitor as claimed in claim 5, wherein the sulfur inhibitor is lime.
8. The use of the magnesium silicate mineral inhibitor as claimed in claim 5, wherein the copper molybdenum collector is butyl xanthate or Z-200.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110012491.1A CN112495590A (en) | 2021-01-06 | 2021-01-06 | Magnesium-containing silicate mineral inhibitor and application thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114367376A (en) * | 2022-01-10 | 2022-04-19 | 中南大学 | Method for recovering copper-molybdenum minerals through flotation |
| CN114832948A (en) * | 2022-03-13 | 2022-08-02 | 中南大学 | Flotation depressor, preparation and application thereof |
| CN115672559A (en) * | 2022-11-10 | 2023-02-03 | 昆明理工大学 | Application of inhibitor in reverse flotation removal of calcite from fluorite |
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| CN114367376A (en) * | 2022-01-10 | 2022-04-19 | 中南大学 | Method for recovering copper-molybdenum minerals through flotation |
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| CN115672559A (en) * | 2022-11-10 | 2023-02-03 | 昆明理工大学 | Application of inhibitor in reverse flotation removal of calcite from fluorite |
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Application publication date: 20210316 |