CN112474057B - Method for desulfurizing sulfur-containing vanadium-titanium-iron ore concentrate and recovering sulfur-cobalt ore concentrate - Google Patents
Method for desulfurizing sulfur-containing vanadium-titanium-iron ore concentrate and recovering sulfur-cobalt ore concentrate Download PDFInfo
- Publication number
- CN112474057B CN112474057B CN202011239134.0A CN202011239134A CN112474057B CN 112474057 B CN112474057 B CN 112474057B CN 202011239134 A CN202011239134 A CN 202011239134A CN 112474057 B CN112474057 B CN 112474057B
- Authority
- CN
- China
- Prior art keywords
- flotation
- concentrate
- ore
- xanthate
- dosage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
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
-
- 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
- B03D1/00—Flotation
- B03D1/14—Flotation machines
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biotechnology (AREA)
- Food Science & Technology (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a method for desulfurizing sulfur-containing vanadium-titanium-iron ore concentrate and recovering sulfur-cobalt ore concentrate, which comprises the following steps: preparing ore pulp from sulfur-containing vanadium-titanium-iron ore concentrate; performing first roughing flotation on the ore pulp to obtain first roughing flotation concentrate and first roughing flotation tailings; performing first scavenging flotation on the first rougher flotation tailings to obtain first scavenging flotation concentrate and first scavenging flotation tailings; merging the first rougher flotation concentrate and the first scavenger flotation concentrate and grinding to obtain a ground ore product; performing second roughing flotation on the ground ore product to obtain second roughing flotation concentrate and second roughing flotation tailings; and carrying out concentration on the second rough flotation concentrate to obtain a sulfur-cobalt concentrate and a first middling. The method has the advantages of good comprehensive recovery effect of the sulfur-cobalt concentrate, high sulfur grade in the sulfur-cobalt concentrate and high recovery rate.
Description
Technical Field
The invention relates to the field of mineral processing engineering, in particular to a method for desulfurizing sulfur-containing vanadium-titanium-iron ore concentrate and recovering sulfur-cobalt ore concentrate.
Background
The reserve of titanium resources in the Panxi area of China is about one third of the reserve of titanium resources in China, and the Panxi area is the base for developing and utilizing the important titanium resources in China. The iron and titanium resources in Panxi province contain a large amount of sulfur and cobalt besides iron, titanium and vanadium. The sulfur and cobalt resources in Panzhihua area exist in the form of sulfides such as pyrrhotite, and the sulfur and cobalt resources can be enriched in vanadium-titanium-iron ore concentrate in the process of selecting vanadium-titanium magnetite. The vanadium-titanium-iron containing sulfur and cobaltThe concentrate, because of its high sulphur content, will produce SO during sintering 2 The direct discharge of gas causes air pollution, and the lime desulfurization also causes the problem of the stockpiling of solid wastes such as gypsum and the like.
Therefore, a method for recovering sulfur and cobalt from vanadium titano-magnetite is needed to improve the utilization rate of sulfur and cobalt in vanadium titano-magnetite in Panxi area.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a method for desulfurizing sulfur-containing vanadium-titanium-iron ore concentrate and recovering sulfur-cobalt ore concentrate.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a method for desulfurizing sulfur-containing vanadium-titanium-iron ore concentrate and recovering sulfur-cobalt ore concentrate, which comprises the following steps:
(1) preparing ore pulp from sulfur-containing vanadium-titanium-iron ore concentrate;
(2) performing first roughing flotation on the ore pulp obtained in the step (1) to obtain first roughing flotation concentrate and first roughing flotation tailings;
(3) performing first scavenging flotation on the first rougher flotation tailings in the step (2) to obtain first scavenging flotation concentrates and first scavenging flotation tailings;
(4) merging the first rougher flotation concentrate in the step (2) and the first scavenger flotation concentrate in the step (3) and grinding to obtain a ground ore product;
(5) performing second roughing flotation on the ground ore product in the step (4) to obtain second roughing flotation concentrate and second roughing flotation tailings;
(6) and (5) carrying out concentration on the second rough flotation concentrate in the step (5) to obtain a sulfur-cobalt concentrate and a first middling.
Further, the method also comprises the following steps:
(7) performing second scavenging flotation on the second rougher flotation tailings in the step (5) to obtain second middlings and second scavenging flotation tailings;
(8) and (3) combining the first middling in the step (6) and the second middling in the step (7) and returning to the step (5) for second rougher flotation.
Further, the step (1) further comprises: mixing the sulfur-containing vanadium-titanium-iron ore concentrate with water to prepare ore pulp with the solid content of 25-60 wt%.
Further, when the first roughing flotation is carried out in the step (2), sulfuric acid is used as a pH regulator, and the pH value of the ore pulp is regulated to 4-6; taking xanthate and butylammonium black powder with the weight ratio of 10: 1-1: 1 as collecting agents, wherein the dosage of the xanthate and the butylammonium black powder is 100-500 g/t; pine oil is used as a foaming agent, and the dosage of the pine oil is 60-80 g/t.
Further, when the first scanning flotation is carried out in the step (3), sulfuric acid is used as a pH regulator, and the pH value of the first rougher flotation tailing pulp is regulated to 4-6; xanthate and butylammonium-black are used as collecting agents according to the weight ratio of 10: 1-1: 1, and the dosage of the xanthate and butylammonium-black is 50-250 g/t; pine oil is used as a foaming agent, and the dosage of the pine oil is 30-80 g/t.
Further, when the second rough flotation is carried out in the step (5), sulfuric acid is used as a pH regulator, and the pH value of the ore grinding product is regulated to 4-6; xanthate and butylammonium-black are used as collecting agents according to the weight ratio of 10: 1-1: 1, and the dosage of the xanthate and butylammonium-black is 50-200 g/t; pine oil is used as a foaming agent, and the dosage of the pine oil is 60-80 g/t.
Further, when the second scavenging flotation is carried out in the step (7), sulfuric acid is used as a pH regulator, and the pH value of the second rougher flotation tailing pulp is regulated to 4-6; xanthate and butylammonium-black are used as collecting agents according to the weight ratio of 10: 1-1: 1, and the dosage of the xanthate and butylammonium-black is 25-100 g/t; pine oil is used as a foaming agent, and the dosage of the pine oil is 30-80 g/t.
Further, a mechanical stirring flotation machine is adopted as flotation equipment to carry out primary roughing flotation, secondary roughing flotation, primary scavenging flotation, secondary scavenging flotation and concentration.
Further, in the step (4), an pizza mill is adopted as ore grinding equipment to grind ores, nano ceramic balls are adopted as ore grinding media, and the ball diameter of the nano ceramic balls is 0.5-5 mm.
Further, in the ground ore of the step (4), the particles having a fineness of-0.038 mm account for 70 wt% to 95 wt% of the total amount of the ground ore.
Compared with the prior art, the invention has the beneficial technical effects that:
(1) the method has the advantages that the sulfur-cobalt concentrate which is not recovered at present is recovered from the vanadium-titanium-iron concentrate of the vanadium-titanium magnetite, the S grade of the obtained sulfur-cobalt concentrate is greater than 32%, the recovery rate is greater than 60%, and the S resource utilization rate of the vanadium-titanium magnetite is improved.
(2) The method adopts the pizza mill as the ore grinding equipment and adopts the nano ceramic as the ore grinding medium, thereby solving the problems that the vanadium-titanium-iron ore concentrate is difficult to be ground, effectively reducing the ore grinding energy consumption, reducing the pollution of iron on the surface of the pyrrhotite by adopting the nano ceramic balls as the ore grinding medium, and effectively improving the grade and the recovery rate of S.
(3) The method of the invention adopts a jet flotation machine to solve the problem that the fine-grade pyrrhotite is difficult to recover in the prior art, and can effectively recover the fine-grade medium-15 mu m pyrrhotite.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic flow diagram of the process for desulphurizing a sulphur-containing vanadium-titanium-iron concentrate and recovering a sulphur-cobalt concentrate according to the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following embodiments of the present invention are described in further detail with reference to the accompanying drawings.
The invention provides a method capable of realizing desulfurization and sulfur-cobalt concentrate recovery from vanadium-titanium-iron concentrate, as shown in figure 1, comprising the following steps:
(1) preparing ore pulp from the sulfur-containing vanadium-titanium-iron ore concentrate, specifically mixing the sulfur-containing vanadium-titanium-iron ore concentrate with water to prepare the ore pulp with the solid content of 25 wt% -60 wt%.
(2) And (2) carrying out first rougher flotation on the ore pulp in the step (1) to obtain first rougher flotation concentrate and first rougher flotation tailings.
Wherein, when the first rough flotation is carried out, a pH regulator, a collecting agent and a foaming agent are added into the ore pulp. In a preferred embodiment, sulfuric acid is used as a pH regulator to regulate the pH value of the ore pulp to 4-6; taking xanthate and ammonium-butyl-black powder with the weight ratio of 10: 1-1: 1 as collecting agents, wherein the dosage of the xanthate and the ammonium-butyl-black powder is 500g/t (based on 1 ton of solid raw material of sulfur-containing vanadium-titanium-iron ore concentrate, the same applies below); no. 2 oil (pine oil) was used as a foaming agent in an amount of 60 to 80g/t (based on 1 ton of solid raw material of sulfur-containing vanadium-titanium-iron ore concentrate, the same applies hereinafter).
(3) And (3) performing first scavenging flotation on the first rougher flotation tailings in the step (2) to obtain first scavenging flotation concentrates and first scavenging flotation tailings.
When the first flotation is carried out, a pH regulator, a collecting agent and a foaming agent are added into the tailing pulp of the first rough flotation. In a preferred embodiment, sulfuric acid is used as a pH regulator to regulate the pH value of the first rougher flotation tailing pulp to 4-6; xanthate and butylammonium-black are used as collecting agents according to the weight ratio of 10: 1-1: 1, and the dosage of the xanthate and butylammonium-black is 50-250 g/t; 2# oil (terpineol oil) is used as a foaming agent, and the dosage of the foaming agent is 30-80 g/t.
(4) And (3) combining the first rougher flotation concentrate in the step (2) and the first scavenger flotation concentrate in the step (3) and grinding to obtain a ground ore product.
The method comprises the following steps of grinding ores by using an Isa grinding machine as ore grinding equipment, and using nano ceramic balls as ore grinding media, wherein the ball diameter of each nano ceramic ball is 0.5-5 mm. In the ground ore obtained in this step, the particles having a fineness of-0.038 mm were 70 wt% to 95 wt% of the total amount of the ground ore.
(5) And (4) carrying out second roughing flotation on the ground ore product in the step (4) to obtain second roughing flotation concentrate and second roughing flotation tailings.
And adding a pH regulator, a collecting agent and a foaming agent into the ground ore product when performing the second rough flotation. In a preferred embodiment, sulfuric acid is used as a pH regulator to regulate the pH value of the ore grinding product to 4-6; xanthate and butylammonium-black are used as collecting agents according to the weight ratio of 10: 1-1: 1, and the dosage of the xanthate and butylammonium-black is 50-200 g/t; 2# oil (terpineol oil) is used as a foaming agent, and the dosage of the foaming agent is 60-80 g/t.
(6) And (5) carrying out concentration on the second rough flotation concentrate in the step (5) to obtain a sulfur-cobalt concentrate and a first middling.
(7) And (5) carrying out second scavenging flotation on the second rougher flotation tailings in the step (5) to obtain second middling and second scavenging flotation tailings.
And adding a pH regulator, a collecting agent and a foaming agent into the second rougher flotation tailing pulp when performing the second scavenging flotation. In a preferred embodiment, sulfuric acid is used as a pH adjusting agent to adjust the pH value of the second rougher flotation tailing pulp to 4-6; xanthate and butylammonium-black are used as collecting agents according to the weight ratio of 10: 1-1: 1, and the dosage of the xanthate and butylammonium-black is 25-100 g/t; 2# oil (terpineol oil) is used as a foaming agent, and the dosage of the foaming agent is 30-80 g/t.
(8) And (3) combining the first middling in the step (6) and the second middling in the step (7) and returning to the step (5) for second rougher flotation.
(9) And (3) combining the first scavenged flotation tailings in the step (3) and the second scavenged flotation tailings in the step (7) to obtain final tailings (namely iron ore concentrate).
In a preferred embodiment, a mechanically agitated flotation machine (e.g. a jet flotation machine) is used for the flotation device for the first rougher flotation, the second rougher flotation, the first scavenger flotation, the second scavenger flotation and the cleaner flotation.
The method and advantageous effects of the present invention for desulphurizing sulphur-containing vanadium-titanium-iron concentrates and recovering sulphur-cobalt concentrates are further illustrated below in connection with examples 1-10.
The following examples 1 to 5 were made of vanadium-titanium-iron ore concentrate from Panzhihua concentrating mill, the contents and ingredients of which are shown in Table 1.
TABLE 1 analysis of the chemical composition of vanadium-titanium-iron ore concentrates from Panzhihua concentrating mills
Example 1
The method of example 1 for desulphurizing sulphur-containing vanadium-titanium-iron concentrate and recovering sulphur-cobalt concentrate comprises the following steps:
(1) preparing ore pulp from the sulfur-containing vanadium-titanium-iron ore concentrate, specifically mixing the sulfur-containing vanadium-titanium-iron ore concentrate with water to prepare the ore pulp with the solid content of 25 wt%.
(2) And (2) carrying out first rougher flotation on the ore pulp in the step (1) to obtain first rougher flotation concentrate and first rougher flotation tailings.
Wherein, sulfuric acid is used as a pH regulator to regulate the pH value of the ore pulp to 4.5; xanthate and butylammonium black powder in a weight ratio of 4:1 are used as collecting agents, and the dosage of the xanthate and the butylammonium black powder is 300 g/t; the No. 2 oil is a foaming agent and is used in an amount of 60 g/t.
(3) And (3) performing first scavenging flotation on the first rougher flotation tailings in the step (2) to obtain first scavenging flotation concentrates and first scavenging flotation tailings.
Wherein, sulfuric acid is used as a pH regulator to regulate the pH value of the first rougher flotation tailing pulp to 4.5; xanthate and butylammonium black powder in a weight ratio of 4:1 are used as collecting agents, and the dosage of the xanthate and the butylammonium black powder is 150 g/t; the No. 2 oil is a foaming agent and is used in an amount of 40 g/t.
(4) And (3) combining the first rougher flotation concentrate in the step (2) and the first scavenger flotation concentrate in the step (3) and grinding to obtain a ground ore product.
Wherein, an Isa mill is adopted as ore grinding equipment for ore grinding, nano ceramic balls are adopted as ore grinding media, and the ball diameter of the nano ceramic balls is 3 mm. In the ground ore obtained in this step, particles having a fineness of-0.038 mm were 85 wt% of the total amount of the ground ore.
(5) And (4) carrying out second roughing flotation on the ground ore product in the step (4) to obtain second roughing flotation concentrate and second roughing flotation tailings.
Wherein, the pH value of the ore grinding product is adjusted to 4.5 by adopting sulfuric acid as a pH adjusting agent; xanthate and butylammonium black powder in a weight ratio of 4:1 are used as collecting agents, and the dosage of the xanthate and the butylammonium black powder is 100 g/t; the No. 2 oil is a foaming agent and is used in an amount of 60 g/t.
(6) And (5) carrying out concentration on the second rough flotation concentrate in the step (5) to obtain a sulfur-cobalt concentrate and a first middling.
(7) And (5) carrying out second scavenging flotation on the second rougher flotation tailings in the step (5) to obtain second middling and second scavenging flotation tailings.
Wherein, sulfuric acid is used as a pH regulator to regulate the pH value of the second rougher flotation tailing pulp to 4.5; xanthate and butylammonium black powder in a weight ratio of 4:1 are used as collecting agents, and the dosage of the xanthate and the butylammonium black powder is 50 g/t; the No. 2 oil is a foaming agent and is used in an amount of 40 g/t.
(8) And (3) combining the first middling in the step (6) and the second middling in the step (7) and returning to the step (5) for second rougher flotation.
(9) And (4) combining the first scavenging flotation tailings in the step (3) and the second scavenging flotation tailings in the step (7) to obtain final tailings.
The indexes of the final product obtained according to the above steps are shown in table 2.
TABLE 2 results of recovering a cobalt sulfide concentrate from a vanadium-titanium-iron concentrate from Panzhihua concentrating plant
Example 2
Example 2 is the same as example 1 except that:
(1) mixing sulfur-containing vanadium-titanium-iron ore concentrate with water to prepare ore pulp with the solid content of 25 wt%;
(2) adjusting the pH value of ore pulp to 4 when carrying out first rough flotation; taking xanthate and butylammonium black powder with a weight ratio of 10:1 as collecting agents, wherein the dosage of the xanthate and the butylammonium black powder is 100 g/t; the No. 2 oil is a foaming agent and the dosage of the foaming agent is 60 g/t;
(3) when the first scavenging flotation is carried out, the pH value of the first rougher flotation tailing pulp is adjusted to be 4; taking xanthate and butylammonium black powder with a weight ratio of 10:1 as collecting agents, wherein the dosage of the xanthate and the butylammonium black powder is 50 g/t; the No. 2 oil is a foaming agent and the dosage of the foaming agent is 30 g/t;
(4) the nano ceramic ball is used as an ore grinding medium, and the ball diameter of the nano ceramic ball is 0.5 mm. In the ground ore product obtained in the step, the particles with the fineness of-0.038 mm account for 70 wt% of the total amount of the ground ore product;
(5) adjusting the pH value of the ore grinding product to 4 when carrying out the second rough flotation; taking xanthate and butylammonium black powder with a weight ratio of 10:1 as collecting agents, wherein the dosage of the xanthate and the butylammonium black powder is 50 g/t; the No. 2 oil is a foaming agent and the dosage of the foaming agent is 60 g/t;
(6) adjusting the pH value of the tailing pulp of the second roughing flotation to 4 when the second scavenging flotation is carried out; taking xanthate and butylammonium black powder with a weight ratio of 10:1 as collecting agents, wherein the dosage of the xanthate and butylammonium black powder is 25 g/t; the No. 2 oil is a foaming agent and the dosage of the foaming agent is 30 g/t;
the indexes of the final product obtained according to the above steps are shown in table 3.
TABLE 3 results of recovering a cobalt sulfide concentrate from a vanadium-titanium-iron concentrate from Panzhihua concentrating plant
Example 3
Example 3 is the same as example 1 except that:
(1) mixing sulfur-containing vanadium-titanium-iron ore concentrate with water to prepare ore pulp with solid content of 60 wt%;
(2) adjusting the pH value of ore pulp to 6 when carrying out first rough flotation; xanthate and butylammonium-black powder in a weight ratio of 1:1 are used as collecting agents, and the dosage of the xanthate and the butylammonium-black powder is 500 g/t; the No. 2 oil is a foaming agent and the dosage of the foaming agent is 80 g/t;
(3) when the first scavenging flotation is carried out, the pH value of the first rougher flotation tailing pulp is adjusted to 6; xanthate and butylammonium black powder in a weight ratio of 1:1 are used as collecting agents, and the dosage of the xanthate and the butylammonium black powder is 250 g/t; the No. 2 oil is a foaming agent and the dosage of the foaming agent is 80 g/t;
(4) the nano ceramic ball is used as an ore grinding medium, and the ball diameter of the nano ceramic ball is 5 mm. In the ground ore product obtained in the step, the particles with the fineness of-0.038 mm account for 95 wt% of the total amount of the ground ore product;
(5) adjusting the pH value of the ore grinding product to 6 when carrying out the second rough flotation; xanthate and butylammonium black powder in a weight ratio of 1:1 are used as collecting agents, and the dosage of the xanthate and the butylammonium black powder is 200 g/t; the No. 2 oil is a foaming agent and the dosage of the foaming agent is 80 g/t;
(6) adjusting the pH value of the tailing pulp of the second roughing flotation to 6 when the second scavenging flotation is carried out; xanthate and butylammonium black powder in a weight ratio of 1:1 are used as collecting agents, and the dosage of the xanthate and the butylammonium black powder is 100 g/t; the No. 2 oil is a foaming agent and the dosage of the foaming agent is 80 g/t;
the indexes of the final product obtained according to the above steps are shown in table 4.
TABLE 4 results of recovering a cobalt sulfide concentrate from a vanadium-titanium-iron concentrate from Panzhihua concentrating plant
Example 4
Example 4 is the same as example 1 except that:
(1) mixing sulfur-containing vanadium-titanium-iron ore concentrate with water to prepare ore pulp with the solid content of 40 wt%;
(2) adjusting the pH value of ore pulp to 5 when carrying out the first rough flotation; xanthate and butylammonium black powder in a weight ratio of 2:1 are used as collecting agents, and the dosage of the xanthate and the butylammonium black powder is 200 g/t; the No. 2 oil is a foaming agent and the dosage of the foaming agent is 70 g/t;
(3) when the first scavenging flotation is carried out, the pH value of the first rougher flotation tailing pulp is adjusted to 5; xanthate and butylammonium black powder in a weight ratio of 2:1 are used as collecting agents, and the dosage of the xanthate and the butylammonium black powder is 100 g/t; the No. 2 oil is a foaming agent and the dosage of the foaming agent is 50 g/t;
(4) the nano ceramic ball is used as an ore grinding medium, and the ball diameter of the nano ceramic ball is 2 mm. In the ground ore product obtained in the step, the particles with the fineness of-0.038 mm account for 80 wt% of the total amount of the ground ore product;
(5) adjusting the pH value of the ore grinding product to 5 when carrying out the second rough flotation; xanthate and butylammonium black powder in a weight ratio of 2:1 are used as collecting agents, and the dosage of the xanthate and the butylammonium black powder is 150 g/t; the No. 2 oil is a foaming agent and the dosage of the foaming agent is 70 g/t;
(6) adjusting the pH value of the tailing pulp of the second roughing flotation to 5 when the second scavenging flotation is carried out; xanthate and butylammonium black powder in a weight ratio of 2:1 are used as collecting agents, and the dosage of the xanthate and the butylammonium black powder is 60 g/t; the No. 2 oil is a foaming agent and the dosage of the foaming agent is 50 g/t;
the indexes of the final product obtained according to the above steps are shown in table 5.
TABLE 5 results of recovering a cobalt sulfide concentrate from a vanadium-titanium-iron concentrate from Panzhihua concentrating plant
Example 5
Example 5 is the same as example 1 except that:
(1) mixing sulfur-containing vanadium-titanium-iron ore concentrate with water to prepare ore pulp with solid content of 50 wt%;
(2) adjusting the pH value of ore pulp to 5.5 when carrying out the first rough flotation; xanthate and butylammonium black powder in a weight ratio of 6:1 are used as collecting agents, and the dosage of the xanthate and the butylammonium black powder is 350 g/t; the No. 2 oil is a foaming agent and the dosage thereof is 75 g/t;
(3) when the first scavenging flotation is carried out, the pH value of the ore pulp of the first rougher flotation tailings is adjusted to 5.5; xanthate and butylammonium nixin with a weight ratio of 6:1 are adopted as collecting agents, and the dosage of the xanthate and butylammonium nixin is 200 g/t; the No. 2 oil is a foaming agent and the dosage of the foaming agent is 60 g/t;
(4) the nano ceramic ball is used as an ore grinding medium, and the ball diameter of the nano ceramic ball is 4 mm. In the ground ore obtained in this step, particles having a fineness of-0.038 mm account for 90 wt% of the total amount of the ground ore;
(5) adjusting the pH value of the ore grinding product to 5.5 when carrying out the second rough flotation; xanthate and butylammonium black powder in a weight ratio of 6:1 are used as collecting agents, and the dosage of the xanthate and the butylammonium black powder is 170 g/t; the No. 2 oil is a foaming agent and the dosage of the foaming agent is 75 g/t;
(6) when the second scavenging flotation is carried out, the pH value of the tailing pulp of the second roughing flotation is adjusted to 5.5; xanthate and butylammonium black powder in a weight ratio of 6:1 are used as collecting agents, and the using amount of the xanthate and the butylammonium black powder is 80 g/t; the No. 2 oil is a foaming agent and the dosage of the foaming agent is 60 g/t;
the indexes of the final product obtained according to the above steps are shown in table 6.
TABLE 6 results of recovering a cobalt sulfide concentrate from a vanadium-titanium-iron concentrate from Panzhihua concentrating plant
The following examples 6-10 were made from a vanadium-titanium-iron concentrate from a concentrate plant of Xichang, the vanadium-titanium-iron concentrate having the components and contents shown in Table 7.
TABLE 7 analysis of the chemical composition of V-Ti-Fe ore concentrate from Xichang concentrating mill
Example 6
The method of example 6 for desulphurizing a sulphur-containing vanadium-titanium-iron concentrate and recovering a sulphur-cobalt concentrate comprises the following steps:
(1) preparing ore pulp from the sulfur-containing vanadium-titanium-iron ore concentrate, specifically mixing the sulfur-containing vanadium-titanium-iron ore concentrate with water to prepare the ore pulp with the solid content of 35 wt%.
(2) And (2) carrying out first rougher flotation on the ore pulp in the step (1) to obtain first rougher flotation concentrate and first rougher flotation tailings.
Wherein, sulfuric acid is used as a pH regulator to regulate the pH value of the ore pulp to 5; xanthate and butylammonium black powder in a weight ratio of 5:1 are used as collecting agents, and the dosage of the xanthate and the butylammonium black powder is 250 g/t; the No. 2 oil is a foaming agent and is used in an amount of 60 g/t.
(3) And (3) performing first scavenging flotation on the first rougher flotation tailings in the step (2) to obtain first scavenging flotation concentrates and first scavenging flotation tailings.
Wherein, sulfuric acid is used as a pH regulator to regulate the pH value of the first rougher flotation tailing pulp to 5; xanthate and butylammonium black powder in a weight ratio of 5:1 are used as collecting agents, and the dosage of the xanthate and the butylammonium black powder is 125 g/t; the No. 2 oil is a foaming agent and is used in an amount of 40 g/t.
(4) And (3) combining the first rougher flotation concentrate in the step (2) and the first scavenger flotation concentrate in the step (3) and grinding to obtain a ground ore product.
Wherein, an Isa mill is adopted as ore grinding equipment for ore grinding, nano ceramic balls are adopted as ore grinding media, and the ball diameter of the nano ceramic balls is 3 mm. In the ground ore obtained in this step, particles having a fineness of-0.038 mm were 80 wt% of the total amount of the ground ore.
(5) And (4) carrying out second roughing flotation on the ground ore product in the step (4) to obtain second roughing flotation concentrate and second roughing flotation tailings.
Wherein, the pH value of the ore grinding product is adjusted to 5 by adopting sulfuric acid as a pH regulator; xanthate and butylammonium black powder in a weight ratio of 5:1 are used as collecting agents, and the dosage of the xanthate and the butylammonium black powder is 100 g/t; the No. 2 oil is a foaming agent and is used in an amount of 60 g/t.
(6) And (5) carrying out concentration on the second rough flotation concentrate in the step (5) to obtain a sulfur-cobalt concentrate and a first middling.
(7) And (5) carrying out second scavenging flotation on the second rougher flotation tailings in the step (5) to obtain second middling and second scavenging flotation tailings.
Wherein, sulfuric acid is used as a pH regulator to regulate the pH value of the second rougher flotation tailing pulp to 5; xanthate and butylammonium black powder in a weight ratio of 5:1 are used as collecting agents, and the dosage of the xanthate and the butylammonium black powder is 50 g/t; the No. 2 oil is a foaming agent and is used in an amount of 40 g/t.
(8) And (3) combining the first middling in the step (6) and the second middling in the step (7) and returning to the step (5) for second rougher flotation.
(9) And (4) combining the first scavenging flotation tailings in the step (3) and the second scavenging flotation tailings in the step (7) to obtain final tailings.
The indexes of the final product obtained according to the above steps are shown in table 8.
TABLE 8 implementation results of the recovery of the S-Co concentrate from V-Ti-Fe concentrate of Xichang ore dressing plant
Example 7
Example 7 is the same as example 6 except that:
(1) mixing sulfur-containing vanadium-titanium-iron ore concentrate with water to prepare ore pulp with the solid content of 25 wt%;
(2) adjusting the pH value of ore pulp to 4 when carrying out first rough flotation; taking xanthate and butylammonium black powder with a weight ratio of 10:1 as collecting agents, wherein the dosage of the xanthate and the butylammonium black powder is 100 g/t; the No. 2 oil is a foaming agent and the dosage of the foaming agent is 60 g/t;
(3) when the first scavenging flotation is carried out, the pH value of the first rougher flotation tailing pulp is adjusted to be 4; taking xanthate and butylammonium black powder with a weight ratio of 10:1 as collecting agents, wherein the dosage of the xanthate and the butylammonium black powder is 50 g/t; the No. 2 oil is a foaming agent and the dosage of the foaming agent is 30 g/t;
(4) the nano ceramic ball is used as an ore grinding medium, and the ball diameter of the nano ceramic ball is 0.5 mm. In the ground ore product obtained in the step, the particles with the fineness of-0.038 mm account for 70 wt% of the total amount of the ground ore product;
(5) adjusting the pH value of the ore grinding product to 4 when carrying out the second rough flotation; taking xanthate and butylammonium black powder with a weight ratio of 10:1 as collecting agents, wherein the dosage of the xanthate and the butylammonium black powder is 50 g/t; the No. 2 oil is a foaming agent and the dosage of the foaming agent is 60 g/t;
(6) adjusting the pH value of the tailing pulp of the second roughing flotation to 4 when the second scavenging flotation is carried out; taking xanthate and butylammonium black powder with a weight ratio of 10:1 as collecting agents, wherein the dosage of the xanthate and butylammonium black powder is 25 g/t; the No. 2 oil is a foaming agent and the dosage of the foaming agent is 30 g/t;
the indexes of the final product obtained according to the above steps are shown in table 9.
TABLE 9 results of recovering S-Co concentrate from V-Ti-Fe concentrate from Panzhihua concentrating mill
Example 8
Example 8 is the same as example 6 except that:
(1) mixing sulfur-containing vanadium-titanium-iron ore concentrate with water to prepare ore pulp with solid content of 60 wt%;
(2) adjusting the pH value of ore pulp to 6 when carrying out first rough flotation; xanthate and butylammonium-black powder in a weight ratio of 1:1 are used as collecting agents, and the dosage of the xanthate and the butylammonium-black powder is 500 g/t; the No. 2 oil is a foaming agent and the dosage of the foaming agent is 80 g/t;
(3) when the first scavenging flotation is carried out, the pH value of the first rougher flotation tailing pulp is adjusted to 6; xanthate and butylammonium black powder in a weight ratio of 1:1 are used as collecting agents, and the dosage of the xanthate and the butylammonium black powder is 250 g/t; the No. 2 oil is a foaming agent and the dosage of the foaming agent is 80 g/t;
(4) the nano ceramic ball is used as an ore grinding medium, and the ball diameter of the nano ceramic ball is 5 mm. In the ground ore product obtained in the step, the particles with the fineness of-0.038 mm account for 95 wt% of the total amount of the ground ore product;
(5) adjusting the pH value of the ore grinding product to 6 when carrying out the second rough flotation; xanthate and butylammonium black powder in a weight ratio of 1:1 are used as collecting agents, and the dosage of the xanthate and the butylammonium black powder is 200 g/t; the No. 2 oil is a foaming agent and the dosage of the foaming agent is 80 g/t;
(6) adjusting the pH value of the tailing pulp of the second roughing flotation to 6 when the second scavenging flotation is carried out; xanthate and butylammonium black powder in a weight ratio of 1:1 are used as collecting agents, and the dosage of the xanthate and the butylammonium black powder is 100 g/t; the No. 2 oil is a foaming agent and the dosage of the foaming agent is 80 g/t;
the indexes of the final product obtained according to the above steps are shown in table 10.
TABLE 10 results of recovering a cobalt sulfide concentrate from a vanadium-titanium-iron concentrate from a certain beneficiation plant of Panzhihua
Example 9
Example 9 is the same as example 6 except that:
(1) mixing sulfur-containing vanadium-titanium-iron ore concentrate with water to prepare ore pulp with the solid content of 40 wt%;
(2) adjusting the pH value of ore pulp to 4.5 when carrying out the first rough flotation; xanthate and butylammonium black powder in a weight ratio of 2:1 are used as collecting agents, and the dosage of the xanthate and the butylammonium black powder is 200 g/t; the No. 2 oil is a foaming agent and the dosage of the foaming agent is 70 g/t;
(3) when the first scavenging flotation is carried out, the pH value of the first rougher flotation tailing pulp is adjusted to 4.5; xanthate and butylammonium black powder in a weight ratio of 2:1 are used as collecting agents, and the dosage of the xanthate and the butylammonium black powder is 100 g/t; the No. 2 oil is a foaming agent and the dosage of the foaming agent is 50 g/t;
(4) the nano ceramic ball is used as an ore grinding medium, and the ball diameter of the nano ceramic ball is 2 mm. In the ground ore product obtained in the step, the particles with the fineness of-0.038 mm account for 80 wt% of the total amount of the ground ore product;
(5) adjusting the pH value of the ore grinding product to 4.5 when carrying out the second rough flotation; xanthate and butylammonium black powder in a weight ratio of 2:1 are used as collecting agents, and the dosage of the xanthate and the butylammonium black powder is 150 g/t; the No. 2 oil is a foaming agent and the dosage of the foaming agent is 70 g/t;
(6) when the second scavenging flotation is carried out, the pH value of the tailing pulp of the second roughing flotation is adjusted to 4.5; xanthate and butylammonium black powder in a weight ratio of 2:1 are used as collecting agents, and the dosage of the xanthate and the butylammonium black powder is 60 g/t; the No. 2 oil is a foaming agent and the dosage of the foaming agent is 50 g/t;
the indexes of the final product obtained according to the above steps are shown in table 11.
TABLE 11 results of recovering a cobalt sulfide concentrate from a vanadium-titanium-iron concentrate from Panzhihua concentrating plant
Example 10
Example 10 is the same as example 6 except that:
(1) mixing sulfur-containing vanadium-titanium-iron ore concentrate with water to prepare ore pulp with solid content of 50 wt%;
(2) adjusting the pH value of ore pulp to 5.5 when carrying out the first rough flotation; xanthate and butylammonium black powder in a weight ratio of 6:1 are used as collecting agents, and the dosage of the xanthate and the butylammonium black powder is 350 g/t; the No. 2 oil is a foaming agent and the dosage of the foaming agent is 75 g/t;
(3) when the first scavenging flotation is carried out, the pH value of the ore pulp of the first rougher flotation tailings is adjusted to 5.5; xanthate and butylammonium black powder in a weight ratio of 6:1 are used as collecting agents, and the dosage of the xanthate and the butylammonium black powder is 200 g/t; the No. 2 oil is a foaming agent and the dosage of the foaming agent is 60 g/t;
(4) the nano ceramic ball is used as an ore grinding medium, and the ball diameter of the nano ceramic ball is 4 mm. In the ground ore product obtained in the step, particles with the fineness of-0.038 mm account for 90 wt% of the total amount of the ground ore product;
(5) adjusting the pH value of the ore grinding product to 5.5 when carrying out the second rough flotation; xanthate and butylammonium black powder in a weight ratio of 6:1 are used as collecting agents, and the dosage of the xanthate and the butylammonium black powder is 170 g/t; the No. 2 oil is a foaming agent and the dosage of the foaming agent is 75 g/t;
(6) when the second scavenging flotation is carried out, the pH value of the tailing pulp of the second roughing flotation is adjusted to 5.5; xanthate and butylammonium nixin with the weight ratio of 6:1 are adopted as collecting agents, and the dosage of the xanthate and butylammonium nixin is 80 g/t; the No. 2 oil is a foaming agent and the dosage of the foaming agent is 60 g/t;
the indexes of the final product obtained according to the above steps are shown in table 12.
TABLE 12 results of recovering a cobalt sulfide concentrate from a vanadium-titanium-iron concentrate from Panzhihua concentrating plant
The above is an exemplary embodiment of the present disclosure, and the order of disclosure of the above embodiment of the present disclosure is only for description and does not represent the merits of the embodiment. It should be noted that the discussion of any embodiment above is exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, of embodiments of the invention is limited to those examples, and that various changes and modifications may be made without departing from the scope, as defined in the claims. The functions, steps and/or actions of the method claims in accordance with the disclosed embodiments described herein need not be performed in any particular order. Furthermore, although elements of the embodiments of the invention may be described or claimed in the singular, the plural is contemplated unless limitation to the singular is explicitly stated.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, of embodiments of the invention is limited to these examples; within the framework of embodiments of the invention, also combinations between technical features of the above embodiments or different embodiments are possible, and there are many other variations of the different aspects of the embodiments of the invention described above, which are not provided in detail for the sake of brevity. Therefore, any omissions, modifications, substitutions, improvements, and the like that may be made without departing from the spirit and principles of the embodiments of the present invention are intended to be included within the scope of the embodiments of the present invention.
Claims (8)
1. A method for desulfurizing sulfur-containing vanadium-titanium-iron ore concentrate and recovering sulfur-cobalt ore concentrate is characterized by comprising the following steps:
(1) preparing ore pulp from sulfur-containing vanadium-titanium-iron ore concentrate;
(2) performing first roughing flotation on the ore pulp obtained in the step (1) to obtain first roughing flotation concentrate and first roughing flotation tailings;
(3) performing first scanning flotation on the first rougher flotation tailings in the step (2) to obtain first scanning flotation concentrate and first scanning flotation tailings, wherein a pH regulator, a collecting agent and a foaming agent are required to be added into the pulp of the first rougher flotation tailings during the first scanning flotation;
(4) combining the first rougher flotation concentrate in the step (2) and the first scavenger flotation concentrate in the step (3) and grinding to obtain a ground ore product, wherein particles with the fineness of-0.038 mm account for 70-95 wt% of the total amount of the ground ore product;
(5) performing second roughing flotation on the ground ore product in the step (4) to obtain second roughing flotation concentrate and second roughing flotation tailings;
(6) concentrating the second rougher flotation concentrate obtained in the step (5) to obtain a sulfur-cobalt concentrate and a first middling;
(7) performing second scavenging flotation on the second rougher flotation tailings in the step (5) to obtain second middlings and second scavenging flotation tailings;
(8) and (4) combining the first middlings in the step (6) and the second middlings in the step (7) and returning to the step (5) for second rougher flotation.
2. The method of claim 1, wherein step (1) further comprises: mixing the sulfur-containing vanadium-titanium-iron ore concentrate with water to prepare ore pulp with the solid content of 25-60 wt%.
3. The method according to claim 1, characterized in that when the first rougher flotation is carried out in the step (2), sulfuric acid is used as a pH regulator to regulate the pH value of the pulp to 4-6; taking xanthate and butylammonium black powder with the weight ratio of 10: 1-1: 1 as collecting agents, wherein the dosage of the xanthate and the butylammonium black powder is 100-500 g/t; pine oil is used as a foaming agent, and the dosage of the pine oil is 60-80 g/t.
4. The method according to claim 1, wherein the first scavenger flotation in step (3) is performed by adjusting the pH of the pulp of the first rougher flotation tailings to 4-6 using sulfuric acid as a pH adjuster; xanthate and butylammonium-black are used as collecting agents according to the weight ratio of 10: 1-1: 1, and the dosage of the xanthate and butylammonium-black is 50-250 g/t; pine oil is used as a foaming agent, and the dosage of the pine oil is 30-80 g/t.
5. The method according to claim 1, characterized in that, in the second rougher flotation in step (5), sulfuric acid is used as a pH adjuster to adjust the pH of the ground ore product to 4-6; xanthate and butylammonium-black are used as collecting agents according to the weight ratio of 10: 1-1: 1, and the dosage of the xanthate and butylammonium-black is 50-200 g/t; pine oil is used as a foaming agent, and the dosage of the pine oil is 60-80 g/t.
6. The process according to claim 1, wherein in the second scavenger flotation in step (7), the pH of the second rougher flotation tailing pulp is adjusted to 4-6 using sulfuric acid as pH adjuster; xanthate and butylammonium-black are used as collecting agents according to the weight ratio of 10: 1-1: 1, and the dosage of the xanthate and butylammonium-black is 25-100 g/t; pine oil is used as a foaming agent, and the dosage of the pine oil is 30-80 g/t.
7. The method of claim 1, wherein the flotation plant is subjected to a first rougher flotation, a second rougher flotation, a first scavenger flotation, a second scavenger flotation, and a cleaner flotation using a mechanically agitated flotation machine.
8. The method according to claim 1, wherein in the step (4), an pizza mill is adopted as an ore grinding device for grinding ore, nano ceramic balls are adopted as an ore grinding medium, and the ball diameter of the nano ceramic balls is 0.5-5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011239134.0A CN112474057B (en) | 2020-11-09 | 2020-11-09 | Method for desulfurizing sulfur-containing vanadium-titanium-iron ore concentrate and recovering sulfur-cobalt ore concentrate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011239134.0A CN112474057B (en) | 2020-11-09 | 2020-11-09 | Method for desulfurizing sulfur-containing vanadium-titanium-iron ore concentrate and recovering sulfur-cobalt ore concentrate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112474057A CN112474057A (en) | 2021-03-12 |
| CN112474057B true CN112474057B (en) | 2022-08-05 |
Family
ID=74929233
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011239134.0A Active CN112474057B (en) | 2020-11-09 | 2020-11-09 | Method for desulfurizing sulfur-containing vanadium-titanium-iron ore concentrate and recovering sulfur-cobalt ore concentrate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112474057B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102794234A (en) * | 2012-09-12 | 2012-11-28 | 长春黄金研究院 | Compound inhibiting agent capable of effectively separating copper and sulfur at low-alkalinity condition |
| CN104923385A (en) * | 2015-05-21 | 2015-09-23 | 河北钢铁股份有限公司承德分公司 | Production method of low-silicon low-sulfur titanium concentrates |
| CN107335535A (en) * | 2017-08-30 | 2017-11-10 | 玉溪大红山矿业有限公司 | A kind of low-grade difficulty selects the Efficient beneficiation method of smelting titanomagnetite |
| CN107626456A (en) * | 2017-08-31 | 2018-01-26 | 中国恩菲工程技术有限公司 | The method of Call Provision iron concentrate from particulate iron tailings |
| CN111250259A (en) * | 2020-03-31 | 2020-06-09 | 攀钢集团矿业有限公司 | Titanium selection process of olivine-containing vanadium titano-magnetite |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4460459A (en) * | 1983-02-16 | 1984-07-17 | Anschutz Mining Corporation | Sequential flotation of sulfide ores |
| CN101081378B (en) * | 2007-05-23 | 2012-04-18 | 华锡集团车河选矿厂 | Novel technics of rough-flotation high concentration high-efficient flotation |
| CN105381868B (en) * | 2015-12-22 | 2017-12-05 | 中国地质科学院矿产综合利用研究所 | Physical beneficiation phosphorus reduction method for skarn type high-phosphorus molybdenum ore |
| CN105964393A (en) * | 2016-04-19 | 2016-09-28 | 攀钢集团矿业有限公司 | Method for desulfurizing sulfur-containing vanadium-titanium-iron concentrate and recovering cobalt pyrite concentrate |
| CN108580022B (en) * | 2018-03-20 | 2019-12-03 | 中国地质科学院矿产综合利用研究所 | Mineral processing technology for producing chemical-grade chromite concentrate |
-
2020
- 2020-11-09 CN CN202011239134.0A patent/CN112474057B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102794234A (en) * | 2012-09-12 | 2012-11-28 | 长春黄金研究院 | Compound inhibiting agent capable of effectively separating copper and sulfur at low-alkalinity condition |
| CN104923385A (en) * | 2015-05-21 | 2015-09-23 | 河北钢铁股份有限公司承德分公司 | Production method of low-silicon low-sulfur titanium concentrates |
| CN107335535A (en) * | 2017-08-30 | 2017-11-10 | 玉溪大红山矿业有限公司 | A kind of low-grade difficulty selects the Efficient beneficiation method of smelting titanomagnetite |
| CN107626456A (en) * | 2017-08-31 | 2018-01-26 | 中国恩菲工程技术有限公司 | The method of Call Provision iron concentrate from particulate iron tailings |
| CN111250259A (en) * | 2020-03-31 | 2020-06-09 | 攀钢集团矿业有限公司 | Titanium selection process of olivine-containing vanadium titano-magnetite |
Non-Patent Citations (1)
| Title |
|---|
| "攀枝花钒钛磁铁矿资源综合利用方向的思考";赵辉;《宏观经济研究》;20070228(第2期);第50-52页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112474057A (en) | 2021-03-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2017101078A4 (en) | Beneficiation method for high-clay mixed lead-zinc oxide-sulfide ore | |
| CN101234363B (en) | Method for producing high-grade sulfur concentrate from low-grade pyrite mine ore | |
| CN110292984A (en) | The embedding cloth type copper sulfide ore substep grinding flotation method of coarse grain containing vitreous copper | |
| CN102553706B (en) | Process for recycling gold from high-arsenic and high-sulfur difficultly treated gold ore | |
| CN107413515A (en) | A kind of fine grain teeth cloth cassiterite beneficiation method | |
| CN103551245B (en) | Complex multi-metal micro fine particle sulphide ore is carried out to the beneficiation method of synthetical recovery | |
| CN105435953A (en) | Beneficiation method for molybdenum-containing low-grade mixed copper ore | |
| CN110170381B (en) | Beneficiation method for recovering cassiterite from tin-copper paragenic ore | |
| CN101549322A (en) | Process of using sulphur lead-zinc containing tailings to prepare sulphur iron ore concentrate | |
| CN104689913A (en) | Pyrite mixed recycling method for polycrystal system | |
| CN110237938B (en) | Flotation reagent and flotation separation method of molybdenum, bismuth and sulfur polymetallic sulfide ore | |
| CN108097453A (en) | The method that magnetic iron ore is removed from iron concentrate containing high sulphur | |
| CN109174442A (en) | Physical beneficiation removal method for heavy metals in copper tailings | |
| CN113751203B (en) | Beneficiation method for copper-molybdenum ores in alpine region | |
| CN113042216B (en) | Flotation separation method for carbonaceous lead sulfide zinc minerals | |
| CN112474057B (en) | Method for desulfurizing sulfur-containing vanadium-titanium-iron ore concentrate and recovering sulfur-cobalt ore concentrate | |
| CN116213130B (en) | Iron extraction and sulfur reduction process for high-sulfur iron ore | |
| CN208526959U (en) | A kind of Zinc Ore with High Copper Content separation system of high-sulfur containing zinc oxide | |
| CN105537005B (en) | The beneficiation method of molybdenum is reclaimed in a kind of tin association sulphide ore bulk concentrate from tungsten | |
| CN112958286B (en) | Method for enriching tin in tungsten-tin flotation concentrate | |
| CN112619878B (en) | Comprehensive recovery process for iron symbiotic nonferrous metal copper, lead and zinc | |
| CN108339658B (en) | Process method for recovering sulfur concentrate from potassium-rich slate | |
| CN113019710A (en) | Combined collecting agent and flotation method of sulfide mineral containing micro-fine particles | |
| CN212856157U (en) | Contain iron of carrying of sulphur magnetite concentrate and fall sulphur system | |
| CN104941789A (en) | Beneficiation method for molybdenum-sulfur bulk concentrate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |