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

A building material, phosphogypsum technology, applied in the field of phosphogypsum-based imitation wood structure building materials and its preparation, can solve problems such as technical solutions for imitation wood 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 imitating wood structures 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
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Effect test

Embodiment 1

[0040] Formula: 160kg of phosphogypsum, 140kg of electrolytic yellow phosphorus slag, 10kg of quicklime, 22kg of cooked brown, 21kg of raw brown, 21kg of Heshi stone, 17kg of gasoline, and 20kg of alkyd varnish.

[0041] Preparation:

[0042] Take phosphogypsum and unslaked lime according to the mass ratio of 16:1 and neutralize them for 1min, put them in a mixer and stir for 30s, then turn on the mixer, add electrolytic yellow phosphorus slag and continue to stir for 60s to obtain a mixed material, and then dry the mixed material to After the free water is ≤1%, put it into a ball mill for grinding for 40 minutes, until the specific surface area is 275m 2 / kg; the mixed material after ball milling was calcined at 140°C for 3 hours and then aged for 24 hours; the aged material was put into a vibration molding machine and formed by vibration according to the required shape; After natural curing of the vibration-molded material for 7 days, autoclave curing is carried out. The he...

Embodiment 2

[0044] Formula: 240kg of phosphogypsum, 180kg of electrolytic yellow phosphorus slag, 15kg of quicklime, 22kg of cooked brown, 21kg of raw brown, 21kg of Heshi stone, 17kg of gasoline, and 20kg of alkyd varnish.

[0045] Preparation:

[0046]Take phosphogypsum and unslaked lime according to the mass ratio of 16:1 and neutralize them for 1min, put them in a mixer and stir for 30s, then turn on the mixer, add electrolytic yellow phosphorus slag and continue to stir for 60s to obtain a mixed material, and then dry the mixed material to After the free water is ≤1%, put it into a ball mill and grind for 42 minutes until the specific surface area is 275m 2 / kg; the mixed material after ball milling was calcined at a temperature of 142°C for 3 hours, and then aged for 26 hours; the aged material was put into a vibration molding machine, and formed by vibration according to the required shape; After natural curing of vibration-molded materials for 7 days, autoclave curing is carried ...

Embodiment 3

[0048] Formula: 180kg of phosphogypsum, 150kg of electrolytic yellow phosphorus slag, 11kg of quicklime, 22kg of cooked brown, 21kg of raw brown, 21kg of Heshi stone, 17kg of gasoline, and 20kg of alkyd varnish.

[0049] Preparation:

[0050] Take phosphogypsum and unslaked lime according to the mass ratio of 16:1 and neutralize them for 1min, put them into the mixer and stir for 30s, then turn on the mixer, add electrolytic yellow phosphorus slag and continue to stir for 60s to obtain the mixed material, then put the mixed material into Grinding in a ball mill for 47 minutes until the specific surface area is 277m 2 / kg; the mixed material after ball milling was calcined at a temperature of 148°C for 4 hours, and then aged for 32 hours; the aged material was put into a vibration molding machine, and formed by vibration according to the required shape; After natural curing of vibration-molded materials for 9 days, autoclave curing is carried out. The temperature rise rate is ...

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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: 160-240 parts of phosphogypsum, 140-180 parts of electrolytic yellow phosphorus slag and 10-15 parts of quicklime. The preparation method comprises the following steps: burdening, ageing, molding, carrying out autoclaved curing, drying a 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 wood 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, acco...

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 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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