A SUPPORT FOR SILVER CATALYST USED IN THE ETHYLENE OXIDE PRODUCTION, A PREPARATION METHOD FOR THE SAME, A SILVER CATALYST PREPARED FROM THE SAME, AND ITS USE IN THE ETHYLENE OXIDE PRODUCTION

摘要

Purpose: for generating a silver catalyst bracket of ethylene oxide, a method of for manufacturing silver catalyst, silver catalyst manufacture is arranged to improve the selectivity of silver catalyst using silver catalyst by identical. ;Construction: the main crystalline phase of an alumina support structure is Alpha-alumina. The specific surface area of bracket is less than or equal to 3.0 m^2/g, preferably 0.5 and 2.0 m^2/g.Between range in the pore space of bracket arrived the range 0. between3 and 0.8 mls/g, preferably 0.4 and 0.7 ml/g.In range between the content of alkali earth metal, preferably barium, in the bracket in 0.05 and 1.Range between 8 wt%, preferably 0.1 and 1.In range between 0 wt%. Fluorine atom percentage on the surface of bracket is in 0.3 and 8.Range between the % of 0 atom, in the range preferably between 0. 5 and 5.The % of 0 atom is based on X-Ray Photoelectron Spectroscopy. ;Copyright KIPO 2012