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Phosphogypsum-based aluminium alloy-like decoration material and preparation method thereof

Inactive Publication Date: 2015-09-16
GUIZHOU KAILIN GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A large amount of phosphogypsum is stacked, which not only occupies land resources, but also increases the huge economic burden on enterprises, and also causes certain pollution to the environment. For a long time, phosphogypsum has not been well used in my country, and the utilization rate is only 10%, and the annual utilization is only 10%. 4-5 million tons, the discharge of phosphogypsum has become an important factor restricting the production of phosphate fertilizer, therefore, it is of great significance to develop a practical comprehensive utilization technology of phosphogypsum

Method used

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  • Phosphogypsum-based aluminium alloy-like decoration material and preparation method thereof
  • Phosphogypsum-based aluminium alloy-like decoration material and preparation method thereof
  • Phosphogypsum-based aluminium alloy-like decoration material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0037] Formula: phosphogypsum 100kg, electrolytic yellow phosphorus slag 80kg, quicklime 4kg, montmorillonite 10kg, quartz sand 16kg, polyester resin 12kg.

[0038] Preparation:

[0039] (1) Ingredients: Take phosphogypsum and quicklime according to the mass ratio of 22:1 and neutralize them for 1 minute, put them into the mixer, add montmorillonite, quartz sand, polyester resin and stir for 36 seconds, then turn on the mixer and add electrolytic Continue to stir the yellow phosphorus slag for 80s to obtain the mixed material, then dry the mixed material until the free water is ≤1%, and put it into a ball mill for grinding for 50 minutes;

[0040] (2) Aging: aging the mixed material after ball milling in step (1) after calcining at a temperature of 120° C. for 1 hour, and the aging time is 32 hours;

[0041] (3) Forming: put the aged material into the vibration forming machine, and vibrate and form according to the required shape;

[0042] (4) Autoclave curing: After the vi...

Embodiment 2

[0048] Formula: phosphogypsum 170kg, electrolytic yellow phosphorus slag 110kg, quicklime 8kg.

[0049] Preparation:

[0050] (1) Ingredients: Take phosphogypsum and unslaked lime according to the mass ratio of 22:1 and neutralize them for 1 minute, put them into the mixer and stir for 36 seconds, then turn on the mixer, add electrolytic yellow phosphorus slag and continue to stir for 80 seconds to obtain the mixed material, then After drying the mixed material to free water ≤ 1%, put it into a ball mill for grinding for 52 minutes;

[0051] (2) Aging: aging the mixed material after ball milling in step (1) after calcining at a temperature of 140° C. for 1 hour, and the aging time is 36 hours;

[0052] (3) Forming: put the aged material into the vibration forming machine, and vibrate and form according to the required shape;

[0053] (4) Autoclave curing: After the vibration-formed material is naturally cured for 7 days, autoclave curing is carried out at a heating rate of 20...

Embodiment 3

[0059] Formula: phosphogypsum 120kg, electrolytic yellow phosphorus slag 90kg, quicklime 5kg, montmorillonite 10kg, quartz sand 16kg, polyester resin 12kg.

[0060] Preparation:

[0061] (1) Ingredients: Take phosphogypsum and quicklime according to the mass ratio of 22:1 and neutralize them for 1 minute, put them into the mixer, add montmorillonite, quartz sand, polyester resin and stir for 36 seconds, then turn on the mixer and add electrolytic Continue to stir the yellow phosphorus slag for 80s to obtain the mixed material, then dry the mixed material until the free water is ≤1%, and put it into a ball mill for grinding for 58 minutes;

[0062] (2) Aging: aging the mixed material after ball milling in step (1) after calcining at a temperature of 160° C. for 2 hours, and the aging time is 40 hours;

[0063] (3) Forming: put the aged material into the vibration forming machine, and vibrate and form according to the required shape;

[0064] (4) Autoclave curing: After the v...

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Abstract

The invention discloses a phosphogypsum-based aluminium alloy-like decoration material and a preparation method thereof. The phosphogypsum-based aluminium alloy-like decoration material comprises the following raw materials by weight part: 60-130 parts of phosphogypsum, 70-90 parts of electrolytic yellow phosphorus slag and 3-9 parts of quicklime. The preparation method comprises the following steps: burdening, aging, moulding, performing autoclaved curing on a phosphogypsum base material, drying, and spraying to obtain the finished product. The phosphogypsum-based aluminium alloy-like decoration material has the characteristics of simple construction process, good waterproof flame resistance, high compressive strength, high flexural intensity and strong weatherability, has good decorative effect as an interior decoration building material, consumes a lot of phosphogypsum, reduces natural stone exploitation, and has important meaning for environment protection and continuous development.

Description

technical field [0001] The invention relates to the field of chemical building materials, in particular to a phosphogypsum-based imitation aluminum alloy decorative material and a preparation method thereof. Background technique [0002] Phosphogypsum is the main industrial by-product when phosphate and compound fertilizer enterprises use phosphate rock and sulfuric acid as raw materials to produce phosphoric acid. The wet-process phosphoric acid production process is to produce extraction slurry by decomposing phosphate rock powder with sulfuric acid, and then filtering to obtain phosphoric acid, which is filtered and washed. Phosphogypsum waste is generated in the process. [0003] With the development of ammonium phosphate industry and high-concentration phosphate compound fertilizer, the discharge of phosphogypsum is increasing year by year. At present, the annual increase of phosphogypsum discharge in the world is 280 million tons, and China is about 50 million tons, ac...

Claims

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Application Information

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IPC IPC(8): C04B28/14C04B18/04C04B22/06
CPCY02W30/91
Inventor 杨步雷杨永彬向前勇王伟刘小成胡新菊李泽钢李显权
Owner GUIZHOU KAILIN GRP CO LTD
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