Application of epoxypropane saponification waste residues in curing of base layer paving material

A technology of propylene oxide and paving materials, applied in construction, solid waste management, sustainable waste treatment, etc., can solve problems such as strength loss, water damage, etc., and achieve the effect of eliminating hidden dangers of safety and environmental secondary pollution

Active Publication Date: 2020-11-03
HANGJIN JINXI CHLOR-ALKALI CHEM CO LTD
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Problems solved by technology

However, saponified slag also has the characteristics of water absorption, gelatinization, and basic loss of strength, and it is prone to water damage if it is only used as a road base

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  • Application of epoxypropane saponification waste residues in curing of base layer paving material
  • Application of epoxypropane saponification waste residues in curing of base layer paving material
  • Application of epoxypropane saponification waste residues in curing of base layer paving material

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Embodiment Construction

[0013] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0014] As shown in the figure, the application of propylene oxide saponification waste slag solidification in base paving materials, according to the soil characteristics of propylene oxide saponification waste slag, the resource treatment of saponification slag is selected and mixed with a curing agent to obtain a base pavement Materials, first, dry the saponified slag at 105-110°C, add fly ash to the saponified slag and mix briefly, the weight ratio of saponi...

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Abstract

The invention provides application of epoxypropane saponification waste residues in curing of a base layer paving material. The method comprises the following steps: drying saponified slag at 105-110DEG C, adding fly ash into the saponified slag according to a weight ratio of 8:2, controlling the moisture content of the mixture of the saponified slag and the fly ash at 23-28% of the weight, adding a curing agent and cement for blending the mixed earth, wherein the cement accounts for 6-8% of the weight of dry saponified slag, and the ratio of curing agent to cement is 4:5; then, the epoxypropane saponification waste residues are used as base layer paving materials to be paved and compacted in engineering, and finally outdoor maintenance is conducted on the epoxypropane saponification waste residues to replace traditional construction materials. According to the invention, fly ash, a curing agent and cement are added into saponified muck to be used as a base layer paving material. Therefore, saponified slag recycling is achieved, and saponified slag storage and potential safety hazards and environmental secondary pollution hazards possibly caused by saponified slag storage can be eliminated. The method is suitable for recycling epoxypropane saponification waste residues.

Description

technical field [0001] The invention relates to propylene oxide saponification waste residue, in particular to the application of solidified propylene oxide saponification waste residue in base paving materials. Background technique [0002] Saponification waste residue is the waste residue produced during the production of propylene oxide by the chlorohydrinization method. Because it is the waste residue produced in the saponification reaction stage, it is named saponification residue. Many chemical companies producing propylene oxide in the country produce nearly one million tons of saponified slag every year. The main component of saponified slag is CaO, which is similar to lime material and can be used as roadbed filling. However, saponified slag also has the characteristics of water absorption, gelatinization, and basic loss of strength, and it is prone to water damage when it is only used as a road base. [0003] Industrial solid waste recycling is an important part ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B18/04C04B28/00E01C3/00
CPCE01C3/00C04B28/00C04B18/0481C04B2111/0075C04B2111/00017C04B18/08C04B22/06C04B14/06Y02W30/91
Inventor 张格亮刘钰张学兵马慧朱峰
Owner HANGJIN JINXI CHLOR-ALKALI CHEM CO LTD
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