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Method for making product from waste glass

A technology of waste glass and products, applied in glass manufacturing equipment, glass production, glass molding, etc., can solve problems such as non-elimination, and achieve the effect of saving energy and natural resources

Inactive Publication Date: 2009-03-18
迈克尔·J·豪恩
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

By optimizing the process parameters, the generated hole defects are reduced, but not eliminated

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 2 and 3

[0045] Examples 2 and 3: The same procedure as described above for Example 1 was used for these examples except that green glass bottles were used in Example 2 and brown glass bottles were used in Example 3 in place of the clear glass containers used in Example 1. The resulting high quality tiles were similar to those in Example 1, except that the tiles of Example 2 were green and the tiles of Example 3 were brown.

[0046] Examples 4-9: The same procedure as described above for Example 1 was used for these examples except that 5% of the amount of clear glass was replaced by a colorant filler. Six commercially available ceramic colorants were evaluated. Example 4 uses red colorant (Mason #6031); Example 5 uses orange colorant (Mason #6121); Example 6 uses green colorant (Mason #6224); Example 7 uses blue colorant (Mason #6306); 8 used brown colorant (Mason #6109); Example 9 used black colorant (Mason #6600). The high quality tiles obtained were similar to those in Example 1,...

example 16

[0048] Example 16: The same procedure as described above for Example 1 was used for this example, except that the organic binder PEG-8000 was replaced by a different polyethylene glycol (PEG-300 produced by Union Carbide). The PEG-8000 used in Examples 1-15 was initially in solid form and had to be dissolved in a liquid (using isopropanol) to wet and coat the glass particles. PEG-300 starts out in liquid form, so liquid is not necessary. 6w% (based on glass amount) of PEG-300 was combined with glass powder without adding additional liquid. The glass and PEG-300 were mixed and pressed without the drying and sieving steps previously used after adding the binder. Use all other steps in Example 1. The high quality tiles obtained were similar to those in Example 1 above.

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PUM

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Abstract

The present invention provides a method for converting large quantities of waste glass into useful ceramic products through a low-cost, highly automated manufacturing process. The main steps of the method are composed of preparing dry glass powder, granulating with non-aqueous organic binder system, dry pressing to obtain proper raw material strength, and firing at low temperature. Up to 100% waste glass can be used as raw material. Water and clay are not required for processing, which eliminates problems encountered in the past. Only one firing step with a firing temperature peak of about 750° C. is required. The method of the present invention conserves energy and natural resources relative to traditional clay-based ceramic manufacture. By this method, high quality impermeable ceramic products with only a small amount of porosity can be produced.

Description

Background technique [0001] The invention relates to a ceramic product prepared from waste glass; a raw material formula for preparing ceramic products from waste glass; and a method for preparing ceramic products from waste glass. Examples of ceramic products that can be produced by the present invention are tiles and bricks, but other ceramic products can also be produced. The present invention addresses two current problems: the need to reduce the energy used by the ceramic industry; and the need for new recycled glass products. [0002] The ceramics industry consumes a lot of energy, especially during the firing process. In order to sinter common ceramic raw materials into dense products, firing temperatures need to exceed 1200°C (2200°F). Modifications to the raw material recipe have resulted in lower firing temperatures, but the improvement has been limited due to the type of raw material used. The most common ceramic products, such as tiles and bricks, consist primar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B33/32C04B33/02C03B19/06C03C1/02C03C10/00C04B33/132C04B33/34C04B35/00C04B41/86
CPCC03B19/06Y02P40/57
Inventor 迈克尔·J·豪恩
Owner 迈克尔·J·豪恩