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Application of a kind of crystalline silicon cutting waste in the preparation of colored glass and the resulting product

A technology of cutting waste and crystalline silicon, which is applied to the new application field of crystalline silicon cutting waste in the preparation of ultraviolet-absorbing color glass and crystalline silicon cutting waste, which can solve the problems of insufficient utilization of waste, complicated preparation process, and high cost, and achieve reduction Effects of stockpiling and environmental protection, high chemical stability, and low production cost

Active Publication Date: 2018-12-18
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] At present, there are still some studies on the overall use of silicon cutting waste to prepare ceramic materials, building materials, etc., and there are also reports on the use of cutting waste to prepare metallurgical auxiliary materials. These studies provide different directions for the utilization of crystalline silicon cutting waste, but the preparation process is complicated. Defects such as long time consumption, insufficient utilization of waste materials, high cost, etc.

Method used

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  • Application of a kind of crystalline silicon cutting waste in the preparation of colored glass and the resulting product
  • Application of a kind of crystalline silicon cutting waste in the preparation of colored glass and the resulting product
  • Application of a kind of crystalline silicon cutting waste in the preparation of colored glass and the resulting product

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Effect test

Embodiment 1

[0045] The design composition of colored glass is (wt%): silicon dioxide: 54.10%, sodium oxide: 21.47%, calcium oxide: 11.71%, iron oxide: 4.50%, aluminum oxide: 1.95%, magnesium oxide: 3.90%, nitric acid Sodium: 1.17%, Antimony Trioxide: 0.20%, Calcium Fluoride: 1.00%.

[0046] The preparation method of colored glass is:

[0047] (1) Pretreatment of cutting waste: Put the cutting waste into a high-temperature furnace, heat it up to 300°C for 2 hours in an air atmosphere, and then raise it to 1450-1500°C for 2 hours to complete the pretreatment. After pretreatment, the pretreated cutting waste was added to a planetary ball mill, ground for 30 minutes at a speed of 250 r / min, and then passed through a 200-mesh sieve for subsequent use.

[0048] (2) According to the design and composition of colored glass, 60g of pretreated cutting waste is used as raw material, and silicon dioxide, sodium carbonate, calcium oxide, aluminum oxide, magnesium oxide, sodium nitrate, antimony triox...

Embodiment 2

[0052] The design composition of colored glass is (wt%): silicon dioxide: 74%, sodium oxide: 6.41%, calcium oxide: 8%, iron oxide: 6.16%, aluminum oxide: 1%, magnesium oxide: 2%, nitric acid Sodium: 1.20%, antimony trioxide: 0.20%, calcium fluoride: 1.03%.

[0053] The preparation method of colored glass is:

[0054] (1) Pretreatment of cutting waste: Put the cutting waste into a high-temperature furnace, heat it up to 300°C for 2 hours in an air atmosphere, and then raise it to 1450-1500°C for 2 hours to complete the pretreatment. After pretreatment, the pretreated cutting waste was added to a planetary ball mill, ground for 30 minutes at a speed of 250 r / min, and then passed through a 200-mesh sieve for subsequent use.

[0055] (2) According to the design and composition of colored glass, 49.3g of pretreated cutting waste is used as raw material, and silicon dioxide, sodium carbonate, calcium oxide, aluminum oxide, magnesium oxide, sodium nitrate, antimony trioxide, and cal...

Embodiment 3

[0058] The design composition of colored glass is (wt%): silicon dioxide: 55.87%, sodium oxide: 20.47%, calcium oxide: 11.16%, iron oxide: 4.65%, aluminum oxide: 1.86%, magnesium oxide: 3.72%, nitric acid Sodium: 1.12%, antimony trioxide: 0.19%, calcium fluoride: 0.96%.

[0059] The preparation method of colored glass is:

[0060] (1) According to the design and composition of colored glass, 40g of untreated cutting waste is used as raw material, and silicon dioxide, sodium carbonate, calcium oxide, aluminum oxide, magnesium oxide, sodium nitrate, antimony trioxide, and calcium fluoride are added as raw materials. Raw materials, the weight percentage of each raw material is as follows: cutting waste: 35.26%, silicon dioxide: 0%, sodium carbonate: 46.72%, calcium oxide: 10.58%, aluminum oxide: 1.76%, magnesium oxide: 3.53%, sodium nitrate : 1.06%, antimony trioxide: 0.18%, calcium fluoride: 0.91%.

[0061] (2) Put the cutting waste into the planetary ball mill, grind for 30 m...

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Abstract

The invention discloses an application of a crystalline silicon cutting waste material in preparation of color glass and the obtained product thereof. Untreated crystalline silicon cutting waste material is directly used as a glass raw material; or the untreated crystalline silicon cutting waste is pretreated and then the pretreated crystalline silicon cutting waste material is used as the glass raw material. The pretreatment process is as follows: firstly the crystalline silicon cutting waste material is subjected to thermal insulation at 300-350 DEG C, heated to 1450-1500 DEG C and then subjected to thermal insulation to complete the pretreatment. The crystalline silicon cutting waste material is used for preparation of glass, the components of the cutting waste material are utilized to the maximum extent, a complex separation and purification process is not needed, a new direction is provided for the application of cutting waste materials. According to the method, the stockpiling problem of crystalline silicon cutting waste is effectively solved, waste is turned into wealth, the stockpiling of the cutting waste materials is reduced, the environment is protected, the waste of precious silicon materials is reduced, and the additional value of the reusable products is high.

Description

technical field [0001] The invention relates to a new application of crystalline silicon cutting waste, in particular to the application of a crystalline silicon cutting waste in the preparation of ultraviolet-absorbing color glass and the resulting product, providing a new recycling method for the crystalline silicon cutting waste, The invention belongs to the technical field of solid waste recovery and reuse. Background technique [0002] Crystalline silicon is often cut by wire cutting technology. In addition to high carbon steel cutting wire, silicon carbide abrasives and cutting fluid are also used in the cutting process. When cutting, the steel wire drives the silicon carbide abrasive to grind to cut the silicon wafer. The cutting fluid mainly contains polyethylene glycol (PEG); after the cutting process, the silicon carbide abrasive remains in the cutting waste along with the cutting fluid. In addition, due to the fast cutting speed, the steel wire is easy to wear, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C6/06C03C1/02C03C1/00C03C4/02C03C4/08
CPCC03C1/002C03C1/02C03C4/02C03C4/085
Inventor 刘世权刘志
Owner UNIV OF JINAN
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