Abstract: The catalyst SLC-S supplied from Shanghai Leader Catalyst Company Limited was industrially tested at SINOPEC SABIC Tianjin Petrochemical Company Limited. The activity，hydrogen sensitivity，copolymerization performance of the catalysts and the influence of the reduction ratio over them was studied. The bulk density，average size，fluidization density of the polymers was tested. The items above were compared with homebred catalysts of the same kind. The result was that the performances of SLC-S were better than the homebred catalysts of the same kind and the responses of the reduction ratio were not sensitive. The properties of the products was also tested，and it indicated that the products are of high quality.

Key words: LLDPE, catalyst, industrial application

摘要： 介绍了在中沙（天津）石化有限公司对上海立得催化剂公司生产的适合气相流化床工艺的SLC-S催化剂进行了工业化应用试验的情况，考察了催化剂的活性、氢调性能、共聚性能及还原比对它们的影响；测试了催化聚合产品的堆积密度、平均粒径、流化密度及还原比对它们的影响，并将这些指标与国产同类催化剂进行了对比，结果显示SLC-S催化剂的性能指标优于国产同类催化剂且对还原比的响应不敏感；测试了最终产品的性能，结果表明，产品的综合指标达优品级。

关键词: 线性低密度聚乙烯, 催化剂, 工业化应用