新型加氢裂化催化剂中TiO_2的测定  

Determination of TiO2 in new type hydrocracking catalyst

作　　者：郭淑芝[1] 胡胜[1] 孟祥滨[1] 

机构地区：[1]大庆石化公司研究院,大庆163714

出　　处：《黑龙江石油化工》2000年第4期21-22,共2页Heilongjiang Petrochemical Technology

摘　　要：提出了一种用分光光度比色法测定加氢裂化催化剂中TiO_2含量的方法.在硫酸酸性介质中,以过氧化氢为氧化剂,将Ti^(4＋)氧化成桔黄色络合物,在最大吸收波长420 nm处,测定以硅铝或氧铝为担体的催化剂中TiO2的含量.加标回收率为97．9 %～101．2 %,相对标偏差小于2 %,该方法准确性高、精密度良好 .A method of determination of TiO2 content in hydrocracking catalyst with spectrophotometric colorimetry is proposed． Using hydrogen peroxide as oxidant in sulfuric acid medium to oxidate Ti4＋ into orange colour complex． TiO2 content in catalyst with aluminium silicate or alumium oxide as carrier is determined at the maximum absorption wave length of 420nm． The standard recovery rate is 97．9% to 101．2%． the relative standard deviation is less than 2%． This method is high in accuracy and good in precision．

关 键 词：分光光度法 加氢裂化催化剂 二氧化钛 测定 

分 类 号：TE624.93[石油与天然气工程—油气加工工程]