Ethylene Glycol Acetate by Catalytic Oxidation of Ethylene-A One-Step Process Involving Simultaneous Feed of Oxygen and Ethylene into The Pd-Cu Catalytic System

陆广中; 黄国章; 郭雅珠; 汪仁; 朱荣华; 祁和干

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Ethylene Glycol Acetate by Catalytic Oxidation of Ethylene-A One-Step Process Involving Simultaneous Feed of Oxygen and Ethylene into The Pd-Cu Catalytic System

更新时间：2025-12-16

- Ethylene Glycol Acetate by Catalytic Oxidation of Ethylene-A One-Step Process Involving Simultaneous Feed of Oxygen and Ethylene into The Pd-Cu Catalytic System
- CIESC Journal Issue 3, (1986)
- 作者机构：
  
  华东化工学院,华东化工学院,华东化工学院,华东化工学院,上海石化总厂研究院,上海石化总厂研究院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 September 1986，
  
  Published：25 September 1986
- 稿件说明：
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陆广中, 黄国章, 郭雅珠, et al. Ethylene Glycol Acetate by Catalytic Oxidation of Ethylene-A One-Step Process Involving Simultaneous Feed of Oxygen and Ethylene into The Pd-Cu Catalytic System[J]. CIESC Journal, 1986, (3).
DOI：

陆广中, 黄国章, 郭雅珠, et al. Ethylene Glycol Acetate by Catalytic Oxidation of Ethylene-A One-Step Process Involving Simultaneous Feed of Oxygen and Ethylene into The Pd-Cu Catalytic System[J]. CIESC Journal, 1986, (3). DOI：

摘要

用PdCl_2-CuCl_2-Cu(OAc)_2醋酸溶液的催化体系由乙烯制备乙二醇醋酸酯

催化过程分乙酰氧基化及催化剂再生二步.本文作了进一步的研究.即将氧和乙烯同时送入反应器

使乙酰氧基化反应和催化剂再生过程为一步过程.研究证明:当采用氧及乙烯作原料气时

在双组份中氧含量8—10%时

才有足够的氧分压

能使Cu~+氧化成Cu~(?)

从而保持催化系统的活性

因而基本上在催化体系中无CuCl的残渣生成.并研究了以N_2作为添加组成

可以使O_2/C_2H_4处于非爆炸范围

所得结果

原料气转化的乙烯中有95%生成乙二醇单醋酸酯和乙二醇双醋酸酯.

Abstract

Preparation of ethylene glycol acetate from ethylene using the catalytic system

PdCl2-CuCl2-Cu(OAc)2 in HAc solution

usually involves two steps -acetoxylation and regeneration of catalyst. In this paper

a one-step process has been studied

with oxygen and ethylene introduced simultaneously into a single reactor. It was observed that there must be sufficient partial pressure of oxygen to oxidize Cu+ to Cu++

by keeping oxygen concentration at 8-10% in the raw binary gas mixture of oxygen and ethylene

whereby the activity of the catalytic system could be maintained without formation of CuCl2 residue. By using nitrogen as a diluent

the ratio of O2/C2H4 could be kept in the non-explosive range

and it was found further that 95% of the ethylene in the raw gas could be converted into ethylene glycol monoacetate and diacetate.

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