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Phosphogypsum-based imitated granite structure building material and preparation method thereof

A technology for imitating granite and building materials, applied in sustainable waste treatment, solid waste management, climate sustainability, etc. The effect of simple construction technology

Inactive Publication Date: 2015-09-09
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 of granite structure in the process of using phosphogypsum to prepare building materials.

Method used

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  • Phosphogypsum-based imitated granite structure building material and preparation method thereof
  • Phosphogypsum-based imitated granite structure building material and preparation method thereof
  • Phosphogypsum-based imitated granite structure building material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0040] Formula: phosphogypsum 400kg, electrolytic yellow phosphorus slag 300kg, quicklime 20kg.

[0041] Preparation:

[0042] (1) Ingredients: take phosphogypsum and unslaked lime according to the mass ratio of 20:1 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 60 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 30 minutes until the specific surface area is 260m 2 / kg;

[0043] (2) Aging: aging the mixed material after ball milling in step (1) after calcining at a temperature of 140° C. for 3 hours, and the aging time is 24 hours;

[0044] (3) Forming: put the aged material into the vibration forming machine, and vibrate and form according to the required shape;

[0045] (4) Autoclaving curing: autoclaving the vibration-molded material with a heating rate of 20°C...

Embodiment 2

[0051] Formula: 500kg of phosphogypsum, 350kg of electrolytic yellow phosphorus slag, 25kg of quicklime, 125kg of colored sand, and 250kg of silicon-acrylic emulsion.

[0052] Preparation:

[0053] (1) Ingredients: take phosphogypsum and unslaked lime according to the mass ratio of 20:1 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 60 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 30 minutes until the specific surface area is 260m 2 / kg;

[0054] (2) Aging: aging the mixed material after ball milling in step (1) after calcining at a temperature of 145° C. for 3 hours, and the aging time is 25 hours;

[0055] (3) Forming: put the aged material into the vibration forming machine, and vibrate and form according to the required shape;

[0056] (4) Autoclaving curing...

Embodiment 3

[0062] Formula: 800kg of phosphogypsum, 500kg of electrolytic yellow phosphorus slag, and 40kg of quicklime.

[0063] Preparation:

[0064] (1) Ingredients: take phosphogypsum and unslaked lime according to the mass ratio of 20:1 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 60 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 30 minutes until the specific surface area is 260m 2 / kg;

[0065] (2) Aging: aging the mixed material after ball milling in step (1) after calcining at a temperature of 150° C. for 3 hours, and the aging time is 26 hours;

[0066] (3) Forming: put the aged material into the vibration forming machine, and vibrate and form according to the required shape;

[0067] (4) Autoclave curing: Autoclave curing of the vibration-molded material with a h...

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Abstract

The invention discloses a phosphogypsum-based imitated granite structure building material and a preparation method thereof. The phosphogypsum-based imitated granite structure building material comprises the following raw materials in parts by weight: 400-800 parts of phosphogypsum, 300-500 parts of electrolyzed yellow phosphorus slag and 20-40 parts of quick lime. The preparation method comprises the steps of material preparing, ageing, forming, autoclave curing, phosphogypsum base material preparing, drying, spraying and finished product forming. The phosphogypsum-based imitated granite structure building material has the characteristics of simple construction process, light weight, good waterproofness and fire resistance, high compressive strength, high bending strength and good weatherability; furthermore, the phosphogypsum-based imitated granite structure building material as an indoor decorative building material has the excellent decoration effect; besides, a large amount of phosphogypsum is consumed, the exploitation of natural stones is reduced, and very important significance is provided for environmental protection and achievement of sustainable development.

Description

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

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/14C04B18/04C04B22/06
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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