Ferromagnetic glass fiber, preparation method, and application of same

A glass fiber and ferromagnetic technology, applied in glass manufacturing equipment, inorganic material magnetism, manufacturing tools and other directions, can solve the problems of complex glass batch preparation method, low magnetic glass fiber output, unsuitable for industrial production, etc., to solve environmental problems. Pressure and occupation of land resources, considerable economic and social benefits, and the effect of increasing added value

Active Publication Date: 2016-08-31
QILU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the above-mentioned method adopts the sol-gel method to prepare magnetic glass fibers with low output, the preparation method of glass batch is complicated, mineral raw materials cannot be directly used, the cost is high, and it is not suitable for industrial production.

Method used

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  • Ferromagnetic glass fiber, preparation method, and application of same
  • Ferromagnetic glass fiber, preparation method, and application of same
  • Ferromagnetic glass fiber, preparation method, and application of same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A ferromagnetic glass fiber, based on the preparation of 500kg of batch material, according to the following mass proportions:

[0045]

[0046] The preparation steps are as follows:

[0047] Add the above batch materials into the glass furnace, melt, clarify and homogenize at 1460°C according to the conventional melting conditions, and flow to the bushing when it is cooled to about 1180°C through the feeding channel, and use traditional glass fiber drawing Technology drawn into ferromagnetic glass fibers.

[0048]The chemical composition of the ferromagnetic glass fiber that present embodiment makes is as follows, is mass percent:

[0049] Fe 2 o 3 : 40.02%, SiO 2 : 35.01%, Al 2 o 3 : 5.94%, B 3 o 3 : 4.03%, CaO: 11.89%, MgO: 3.11%.

[0050] The scanning electron microscope picture of the ferromagnetic glass fiber that present embodiment makes is as figure 1 shown by figure 1 It can be seen that the average diameter of the ferromagnetic glass fibers prepa...

Embodiment 2

[0055] A ferromagnetic glass fiber, based on the preparation of 500.01kg of batch material, according to the following mass proportions:

[0056]

[0057] The preparation steps are the same as in Example 1.

[0058] The chemical composition of the ferromagnetic glass fiber that present embodiment makes is as follows, is mass percent:

[0059] Fe 2 o 3 : 41.86%, SiO 2 : 33.01%, Al 2 o 3 : 5.97%, B 3 o 3 : 3.98%, CaO: 12.02%, MgO: 3.03%.

[0060] The crystalline phase of the ferromagnetic glass fiber that present embodiment makes is Fe 3 o 4 Crystal, the crystal size is 25nm;

[0061] The ferromagnetic glass fiber has a diameter of 20 μm and a specific saturation magnetic moment of 12 emu / g.

Embodiment 3-8

[0063] The raw material ratio of embodiment 3-8 is as shown in table 1.

[0064] Table 1

[0065] Raw material\Example

Example 3

Example 4

Example 5

Example 6

Example 7

Example 8

Pyrite slag (kg)

301.74

288.79

282.27

275.68

269.06

262.40

Quartz sand (kg)

69.87

80.24

85.46

90.75

96.02

101.35

Alumina powder (kg)

16.65

17.06

17.23

17.44

17.65

17.86

Limestone (kg)

53.10

53.47

53.68

53.88

54.08

54.26

Dolomite (kg)

31.34

32.96

33.80

34.61

35.46

36.32

Boric acid (kg)

27.30

27.47

27.56

27.64

27.73

27.81

total

500.00

499.99

500.00

500.00

500.00

500.00

[0066] The preparation steps are the same as in Example 1.

[0067] The chemical composition of the ferromagnetic glass fiber that embodiment 3-8 makes is as shown in table 2, is mass percent:

[0068] Table 2

[0069]

...

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Abstract

The invention relates to a ferromagnetic glass fiber, a preparation method, and an application of the same. The glass fiber is composed of the chemical components comprising, by mass, 25-45% of Fe2O3, 20-50% of SiO2, 2-10% of Al2O3, 0-8% of B3O3, 2-15% of CaO, and 1-6% of MgO. The preparation method includes the steps of: preparing a uniformly mixed compound material from pyrite slag, quartz sands, aluminum oxide powder, boric acid, calcium carbonate and dolomite; melting, clarifying, homogenizing and cooling the compound material; and wire-drawing and drying the material. By means of the method, the industrial waste residue, pyrite slag, generated during industrial sulfuric acid production can be completely utilized in one time, so that a problem of waste residue treatment in preparation of sulfuric acid by roasting pyritic in chemical engineering is fundamentally solved, thereby achieving the targets of utilizing waste residues, improving environment and reducing production cost. The method greatly increases additional value of glass fibers and has great economic and social benefits.

Description

technical field [0001] The invention belongs to the technical field of new product development, in particular to a ferromagnetic glass fiber and its preparation method and application, and belongs to the technical field of glass fiber production. Background technique [0002] Pyrite slag is the waste residue discharged from the process of producing sulfuric acid or sulfurous acid from pyrite, which is a kind of chemical waste residue. my country is a big country of sulfuric acid production. The raw material for sulfuric acid production is mainly pyrite, and the production mode using pyrite as raw material accounts for 75%. Oxidation and roasting of pyrite can produce 0.8-0.9 tons of cinder for every 1 ton of sulfuric acid produced. In 2014, my country's annual output of sulfuric acid was 88.46 million tons, and the annual output of pyrite slag was about 70.9 million tons. The main components of pyrite slag are ferric oxide (Fe 2 o 3 )20~50%, silicon dioxide (SiO 2 )15~65%...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C13/06C03B37/022H01F1/01
CPCC03C1/002C03C3/064C03C13/06C03B37/022H01F1/01
Inventor 刘建安张梅梅杨雪娜
Owner QILU UNIV OF TECH
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