Phosphogypsum-based stone-like structure building material and preparation method thereof

A building material, phosphogypsum technology, applied in the field of phosphogypsum-based imitation stone structure building materials and its preparation, can solve problems such as technical solutions for imitation stone structures, and achieve sustainable development, high flexural strength, and anti-corrosion The effect of high compressive strength

Inactive Publication Date: 2015-06-24
GUIZHOU KAILIN GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At the same time, there is also the technology of using phosphogypsum to prepare building insulation materials, but there is no technical solution for the imitation stone structure in the process of using phosphogypsum to prepare building materials.

Method used

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  • Phosphogypsum-based stone-like structure building material and preparation method thereof
  • Phosphogypsum-based stone-like structure building material and preparation method thereof
  • Phosphogypsum-based stone-like structure building material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Formula: phosphogypsum 30kg, electrolytic yellow phosphorus slag 15kg, quicklime 2kg, quartz sand 100kg, colored sand 15kg, acrylic emulsion 20kg, water 25kg, anti-sedimentation agent 1.5kg, water-soluble polyurethane 5kg, film-forming aid 1kg, ammonia water 0.5kg .

[0042] Preparation:

[0043] (1) Ingredients: take phosphogypsum and unslaked lime according to the mass ratio of 15:1 and neutralize them for 1 minute, put them in the mixer and stir for 40 seconds, then turn on the mixer, add electrolytic yellow phosphorus slag and continue to stir for 50 seconds to obtain the mixed material, then After the mixed material is dried to free water ≤ 1%, put it into a ball mill and grind it for 60 minutes until the specific surface area is 265m 2 / kg;

[0044] (2) Aging: aging the mixed material after ball milling in step (1) after calcining at a temperature of 130° C. for 2 hours, and the aging time is 16 hours;

[0045] (3) Forming: put the aged material into the vibrat...

Embodiment 2

[0052] Formula: 80kg of phosphogypsum, 60kg of electrolytic yellow phosphorus slag, and 10kg of quicklime.

[0053] Preparation:

[0054] (1) Ingredients: take phosphogypsum and unslaked lime according to the mass ratio of 15:1 and neutralize them for 1 minute, put them in the mixer and stir for 40 seconds, then turn on the mixer, add electrolytic yellow phosphorus slag and continue to stir for 50 seconds to obtain the mixed material, then After the mixed material is dried to free water ≤ 1%, put it into a ball mill and grind it for 60 minutes until the specific surface area is 265m 2 / kg;

[0055] (2) Aging: aging the mixed material after ball milling in step (1) after calcining at a temperature of 150° C. for 2 hours, and the aging time is 18 hours;

[0056] (3) Forming: put the aged material into the vibration forming machine, and vibrate and form according to the required shape;

[0057] (4) Autoclaving curing: autoclaving the vibration-molded material with a heating ra...

Embodiment 3

[0063] Formula: 45kg of phosphogypsum, 25kg of electrolytic yellow phosphorus slag, 3kg of quicklime, 100kg of quartz sand, 15kg of colored sand, 20kg of acrylic emulsion, 25kg of water, 1.5kg of anti-sedimentation agent, 5kg of water-soluble polyurethane, 1kg of film-forming aid, and 0.5kg of ammonia water .

[0064] Preparation:

[0065] (1) Ingredients: take phosphogypsum and unslaked lime according to the mass ratio of 15:1 and neutralize them for 1 minute, put them in the mixer and stir for 40 seconds, then turn on the mixer, add electrolytic yellow phosphorus slag and continue to stir for 50 seconds to obtain the mixed material, then After the mixed material is dried to free water ≤ 1%, put it into a ball mill and grind it for 60 minutes until the specific surface area is 265m 2 / kg;

[0066] (2) Aging: aging the mixed material after ball milling in step (1) after calcining at a temperature of 170° C. for 2 hours, and the aging time is 22 hours;

[0067] (3) Forming: ...

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Abstract

The invention discloses a phosphogypsum-based stone-like structure building material and a preparation method thereof. The phosphogypsum-based stone-like structure building material is prepared from the following raw materials in parts by weight: 30-80 parts of phosphogypsum, 15-60 parts of electrolytic yellow phosphorus slag and 2-10 parts of quicklime. The preparation method comprises the following steps: burdening, ageing, molding, carrying out autoclaved curing, drying phosphorus gypsum base material, spraying and forming a finished product. The phosphogypsum-based stone-like structure building material has the characteristics of simple construction process, light weight, good waterproof and fireproof properties, high compressive strength, high breaking strength and high weather resistance, and has a good decoration effect as an indoor decoration building material; meanwhile, a lot of phosphogypsum is consumed; exploitation of natural stones is reduced; and the phosphogypsum-based stone-like structure building material has important significance on environment protection and realization of sustainable development.

Description

technical field [0001] The invention relates to the field of chemical building materials, in particular to a phosphogypsum-based imitation stone structure building 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, acc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B18/14C04B41/61B28B11/24
CPCY02W30/91
Inventor 向前勇杨永彬杨步雷王伟刘小成胡新菊李泽钢
Owner GUIZHOU KAILIN GRP CO LTD
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