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Fluorophlogopite prepared by using molybdenum tailings and method thereof

A technology of fluorophlogopite and molybdenum tailings, applied in aluminum silicate, silicate and other directions, can solve many problems, such as not using molybdenum tailings to manufacture fluorophlogopite, and achieves a simple process and reduces manpower and material resources. Consumption, the effect of solving environmental pollution

Inactive Publication Date: 2014-07-30
DALIAN POLYTECHNIC UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For a long time, while developing high-grade molybdenum ore, my country has treated other components that are difficult to recover together with tailings as molybdenum tailings. So far, recovery of molybdenum, scheelite, copper, iron, and sulfur from molybdenum tailings There are many studies on single components such as molybdenum tailings, but there are not many studies on the comprehensive utilization of all components in molybdenum tailings, and there are no literatures and patents on the use of molybdenum tailings to manufacture fluorphlogopite

Method used

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  • Fluorophlogopite prepared by using molybdenum tailings and method thereof
  • Fluorophlogopite prepared by using molybdenum tailings and method thereof
  • Fluorophlogopite prepared by using molybdenum tailings and method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The production process flow of the present invention using molybdenum tailings to prepare fluorphlogopite is: molybdenum tailings iron removal, impurity removal treatment; ball milling; batching calculation and batching; high temperature melting and heat preservation; cooling and heat preservation; furnace cooling; pulverization; quality Inspection, product grading; packaging for factory sales.

[0031] The raw material formula is shown in Table 3, and the calculated chemical composition of fluorophlogopite is shown in Table 4.

[0032] Raw material formula (kg) of table 3 embodiment 1

[0033] raw material

Molybdenum tailings

SiO 2

Al 2 o 3

K 2 CO 3

MgO

K 2 SiF 6

kg

50

11.1

5.9

2.9

13.5

16.6

[0034] The fluorophlogopite composition table (mass percentage) of the fluorine phlogopite of table 4 embodiment 1

[0035] composition

SiO 2

al 2 o 3

K 2 CO 3

...

Embodiment 2

[0052] The raw material formula of Example 2 is shown in Table 5, and the chemical composition of fluorophlogopite calculated therefrom is shown in Table 6.

[0053] The raw material formula (kg) of table 5 embodiment 2

[0054] raw material

Molybdenum tailings

SiO 2

Al 2 o 3

K 2 CO 3

MgO

K 2 SiF 6

kg

60

5.9

4.7

2.4

10.6

16.4

[0055] The fluorine phlogopite composition table (mass percentage) of the embodiment 2 of table 6

[0056] composition

SiO 2

Al 2 o 3

K 2 CO 3

MgO

K 2 SiF 6

mass percentage

35.9

11.4

4.3

29.4

16.4

[0057] One preparation process:

[0058] Raw material crushing, mixing, melting, annealing and sample processing are the same as in Example 1

[0059] Crystallization treatment: the crystallization holding temperature is 1250°C, hold for 2 hours, and the cooling rate from the melting temperature ...

Embodiment 3

[0067] The raw material formula of Example 3 is shown in Table 7, and the chemical composition of fluorophlogopite calculated therefrom is shown in Table 8.

[0068] The raw material formula (kg) of table 7 embodiment 3

[0069] raw material

Molybdenum tailings

SiO 2

al 2 o 3

K 2 CO 3

MgO

K 2 SiF 6

kg

71

0

3.4

1.9

7.4

16.4

[0070] The fluorophlogopite composition table (mass percentage) of the embodiment 3 of table 8

[0071] composition

SiO 2

Al 2 o 3

K 2 CO 3

MgO

K 2 SiF 6

mass percentage

35.5

11.4

4.1

29.7

16.4

[0072] One preparation process:

[0073] Raw material crushing, mixing, melting, annealing and sample processing are the same as in Example 1

[0074] Crystallization treatment: the crystallization holding temperature is 1300°C, hold for 2 hours, and the cooling rate from the melting temperature is abo...

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Abstract

The invention discloses a production formula of fluorophlogopite and a method for preparing the fluorophlogopite. The formula concretely comprises the following components by weight percent: 40-71% of molybdenum tailings and 29-60% of powder batch, wherein the powder batch comprises the following components by weight percent: 4-8% of K2CO3, 22-29% of MgO, 9-14% of Al2O3, 0-40% of SiO2 and 15-60% of K2SiF6. The fluorophlogopite produced according to the formula disclosed by the invention forms a flake structure and is easy to separate, the color is brown, the whiteness range is 30-55%, and the dielectric constant range is 6-10. Compared with artificial fluorine phlogopite produced at home and abroad at present, fluorophlogopite prepared according to the formula by the method disclosed by the invention has the advantages that the production cost of an enterprise can be greatly reduced, the phenomenon of molybdenum tailings as waste slag is effectively solved, and the technique and the product developed by the method have broad development prospects and markets.

Description

technical field [0001] The invention relates to a formula for preparing fluorphlogopite by using molybdenum tailings and a production process thereof. Specifically, it is a method for preparing fluorphlogopite by using molybdenum tailings as the main raw material and other chemical reagents as auxiliary raw materials. Background technique [0002] Fluorphlogopite is an aluminum silicate containing magnesium and potassium. It is widely used in chemical industries such as building materials, fire protection, papermaking, rubber, and pearlescent pigments. It is an important mineral raw material. Due to the lack of reserves of natural mica in my country, especially high-quality and large-scale mica, which cannot meet the needs of industrial development, domestic research on artificially synthesized mica, namely fluorine phlogopite, has been carried out since the 1950s. [0003] Molybdenum tailings are a kind of industrial waste. The discharge and accumulation of these industrial...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B33/26
Inventor 王志强江莎莎张益王磊孙浩
Owner DALIAN POLYTECHNIC UNIVERSITY
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