Flotation separation method of fluorite and dolomite in acidic conditions

A separation method and dolomite technology, which is applied in the field of flotation separation of fluorite and dolomite, can solve the problems of using too much reagent, difficult flotation separation, high production cost, etc., and achieve the effect of less reagent consumption and simple process structure

Inactive Publication Date: 2014-04-02
江西鼎帆实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the deposits associated with fluorite and dolomite, since dolomite and fluorite are both calcium-containing minerals, their buoyancy is close, and the activity of magnesium ions in dolomite minerals is very strong. Generally, fluorite and dolomite Dolomite is difficult to be separated by flotation. In addition, due to the interference of other impurity minerals such as silicate minerals and impurity fine mud, the flotation separation is more difficult; even if fluorite minerals are occasionally recovered, the flotation process structure is not only complicated , the use of many agents, and the high production cost and poor economic benefits limit the development and utilization of this type of fluorite

Method used

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  • Flotation separation method of fluorite and dolomite in acidic conditions
  • Flotation separation method of fluorite and dolomite in acidic conditions
  • Flotation separation method of fluorite and dolomite in acidic conditions

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Experimental program
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Effect test

Embodiment 1

[0021] 1. Mineral raw materials:

[0022] In the mineral raw materials used, the content of fluorite is 53.27%, the content of quartz is 5.62%, the content of dolomite is 23.90%, and the content of calcium carbonate is 0.95%. The phase analysis shows that the ore mainly contains fluorite, dolomite, quartz and acid Calcium, and a small amount of barite minerals.

[0023] 2. Flotation agents and operating conditions:

[0024]

[0025] When in use, the medicament is first prepared into the following weight percent concentrations:

[0026]

[0027] During the flotation process, the ore is ground until the mineral monomers are dissociated, and sulfuric acid is added to adjust the pH value of the pulp to 5-5.5, then acid fuchsin and ferric citrate are added to suppress dolomite and other impurity minerals, and then plants are added to Fluorite minerals are collected to obtain fluorite concentrate products. Tests have shown that fluorspar minerals can be effectively recovere...

Embodiment 2

[0029] In the mineral raw materials used, the content of fluorite is 57.20%, the content of quartz is 4.91%, the content of dolomite is 25.19%, and the content of calcium carbonate is 1.25%. The phase analysis shows that the ore mainly contains fluorite, dolomite, quartz and acid Calcium, and a small amount of barite minerals.

[0030] 2. Flotation agents and operating conditions:

[0031]

[0032] When in use, the medicament is first prepared into the following weight percent concentrations:

[0033]

[0034] During the flotation process, the ore is ground until the mineral monomers are dissociated, and sulfuric acid is added to adjust the pH value of the pulp to 5-5.5, then acid fuchsin and ferric citrate are added to suppress dolomite and other impurity minerals, and then plants are added to Fluorite minerals are collected to obtain fluorite concentrate products. Tests have shown that fluorspar minerals can be effectively recovered according to the above process par...

Embodiment 3

[0036] In the mineral raw materials used, the content of fluorite is 60.19%, the content of quartz is 3.67%, the content of dolomite is 26.20%, and the content of calcium carbonate is 1.30%. The phase analysis shows that the ore mainly contains fluorite, dolomite, quartz and acid Calcium, and a small amount of barite minerals.

[0037] 2. Flotation agents and operating conditions:

[0038]

[0039]

[0040] When in use, the medicament is first prepared into the following weight percent concentrations:

[0041]

[0042] During the flotation process, the ore is ground until the mineral monomers are dissociated, and sulfuric acid is added to adjust the pH value of the pulp to 5-5.5, then acid fuchsin and ferric citrate are added to suppress dolomite and other impurity minerals, and then plants are added to Fluorite minerals are collected to obtain fluorite concentrate products. Tests have shown that fluorspar minerals can be effectively recovered according to the above...

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Abstract

A flotation separation method of fluorite and dolomite in the acidic conditions comprises the steps of utilizing sulfuric acid as a pH (potential of hydrogen) adjusting agent; utilizing acid magenta and ferric citrate as an inhibitor of the dolomite and other impurity minerals; utilizing plant oleic acid as a collecting agent of a fluorite mineral. According to the flotation separation method of the fluorite and the dolomite in the acidic conditions, the fluorite mineral can be separated from the dolomite and the other impurity minerals through flotation and a fluorite concentrate can be obtained, wherein the grade of the fluorite is 97.11 to 97.75% and the recovery rate of the fluorite is 79.25 to 83.90%.

Description

1. Technical field [0001] The invention relates to a method for separating fluorite and dolomite, in particular to a flotation separation method for fluorite and dolomite under acidic conditions. 2. Background technology [0002] In the deposits associated with fluorite and dolomite, since dolomite and fluorite are both calcium-containing minerals, their buoyancy is close, and the activity of magnesium ions in dolomite minerals is very strong. Generally, fluorite and dolomite Dolomite is difficult to be separated by flotation. In addition, due to the interference of other impurity minerals such as silicate minerals and impurity fine mud, the flotation separation is more difficult; even if fluorite minerals are occasionally recovered, the flotation process structure is not only complicated , the use of many agents, and the high production costs and poor economic benefits limit the development and utilization of this type of fluorite. 3. Contents of the invention [0003] T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/00B03D1/018B03D101/02B03D101/06
Inventor 魏宗武
Owner 江西鼎帆实业有限公司
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