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Catalyst and Application of Coupling Reaction of Acetylene and Ethylene Dichloride to Prepare Vinyl Chloride

A dichloroethane, coupled reaction technology, applied in molecular sieve catalysts, catalyst regeneration/reactivation, physical/chemical process catalysts, etc., can solve environmental pollution and other problems, achieve high conversion rate of acetylene, simple preparation process, high selectivity high effect

Active Publication Date: 2022-06-03
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] According to one aspect of the present application, a catalyst for the coupling reaction of acetylene and ethylene dichloride to prepare vinyl chloride is provided, which solves the technical problem that the acetylene process generally uses a supported mercury chloride catalyst and causes serious environmental pollution.

Method used

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Examples

Experimental program
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Embodiment approach

[0058] In the feed gas, the molar ratio of ethylene dichloride and acetylene steam is 0.5 to 2.5:1.

Embodiment 1

Embodiment 2

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Abstract

The present application discloses a catalyst for the coupling reaction of acetylene and ethylene dichloride to prepare vinyl chloride. The catalyst for the coupling reaction of acetylene and ethylene dichloride to prepare vinyl chloride includes a modified FAU type silica-alumina molecular sieve; Said modification is modified by ion exchange. The catalyst provided by this application for the coupling reaction of acetylene and ethylene dichloride to prepare vinyl chloride solves the technical problem that the acetylene process generally uses a supported mercury chloride catalyst and causes serious environmental pollution in the prior art.

Description

Catalyst and its application for the preparation of vinyl chloride by coupling reaction of acetylene and ethylene dichloride technical field The application relates to a kind of acetylene and ethylene dichloride coupling reaction to prepare the catalyst and application of vinyl chloride, belong to catalyzer field of chemical synthesis. Background technique As one of the five general plastics, PVC plays an important role in national economic construction and is widely used in automobile Vehicles, building materials, pipes, wires and cables, toys and food packaging and other industries. In 2011, the apparent consumption of five general-purpose plastics in my country The cost exceeds 50 million tons, of which PVC accounts for about 14 million tons. Due to the constraints of my country's resource structure, compared with petroleum B The traditional process of olefin method, coal-carbide-acetylene is more suitable for the development of domestic PVC industry, so about 8...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J29/70B01J38/02C07C17/08C07C17/25C07C21/06
CPCB01J29/70B01J38/02C07C17/08C07C17/25C07C21/06Y02P20/584
Inventor 刘广业董兴宗袁丹华徐云鹏刘中民
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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