Method of producing architectural decorative material and wall bady material using phosphogypsum

A technology for building decoration materials and wall materials, which is used in solid waste management, sustainable waste treatment, climate sustainability, etc. to achieve strong corrosion resistance, good economic benefits, and overall weight reduction.

Inactive Publication Date: 2005-08-10
GUIYANG PENGHONG HIGH NEW TECH DECORATION MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, building decoration materials or wall materials produced with polyvinyl chloride and phosphogypsum have not been reported yet.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment one production building decoration material:

[0018] Phosphogypsum discharged from an enterprise in Guizhou Province was used as raw material, and its chemical composition (mass fraction) was tested as shown in the following table:

[0019] Composition SO 3 CaOSiO 2 F MgO Al 2 o 3 Fe 2 o 3

[0020] Content 39.46 31.40 4.99 0.2 0.04 0.04 0.21

[0021] Ingredient P 2 o 5 Na 2 OK 2 O TiO 2 MnO loss on ignition Total

[0022] Content 1.18 0.09 0.09 0.07 0.01 21.76 100

[0023] First, clean the phosphogypsum with clean water and dry it, then send it to the tunnel kiln and use civil gas to calcine at a high temperature of 1300-1360°C for 25 minutes to remove part of the water and P in the phosphogypsum. 2 o 5 and fluorine, and then grind the calcined charge to 400-450 mesh for later use. At this time, the composition of phosphogypsum has changed, and its chemical composition (mass fraction) is as shown in the following table after ...

Embodiment 2

[0043] Embodiment two produces body of wall material:

[0044]The first three steps are exactly the same as in Example 1. In the fourth step, the powdery material is directly fed into the extruder for extrusion molding, heated to 180-200°C to make it into a paste, and a commercially available foaming agent is added. The wall material can be made by extruding into a pre-prepared mold and vacuum foaming. The type of wall material produced is a plate with a height of 2.6m, a width of 1.2m, and a thickness of 6cm with a wedge.

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PUM

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Abstract

A process for preparing wall material or decorative material from ardealite includes washing with water, drying, calcining, grinding, proportionally mixing it with PVC resin and auxiliary, stirring to obtain powdered material, heating to become paste, adding foamer, extruding and vacuum foaming in mould to obtain wall material, or heating while extruding said powdered material to become particles, heating and moulding to become decorative material.

Description

technical field [0001] The invention relates to building materials, in particular to a method for producing decorative materials and wall materials using polyvinyl chloride and phosphogypsum as raw materials. Background technique [0002] Phosphogypsum is an industrial waste discharged from the wet-process phosphoric acid production process in the phosphorus chemical industry. Produce 1 ton of wet-process phosphoric acid (in P 2 o 5 Total) produces 4.5-5 tons of phosphogypsum. At present, the main method of comprehensive utilization of phosphogypsum is to use phosphogypsum to produce sulfuric acid and cement. This method can recover sulfur resources, but the investment is high, and the grade of cement produced is not high; the second is to produce β-hemihydrate Plaster of paris is used for building materials, such as for the production of decorative boards, interior wall partitions, cement retarders, composite mineralizers, refractory materials, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B11/26C04B18/04C04B24/00C04B26/08
CPCY02W30/91
Inventor 马兴祥
Owner GUIYANG PENGHONG HIGH NEW TECH DECORATION MATERIAL
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