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1·Characteristics of the newly developed catalyst RAG 7 with high bulk density for more low end olefins were introduced.

介绍了新开发的多产低碳烯烃高堆积密度催化剂rag 7的特征。

2·The influence of alumina addition on the bulk density, mechanical strength, activity and thermal stability of high temperature shift (HTS) catalyst was studied in laboratory.

实验室研究了添加氧化铝对中温变换催化剂堆密度、机械强度、活性和热稳定性的影响。

3·Besides increasing the catalyst activity, the pre-polymerization can not only raise the bulk density and isotacticity of the PP product, but also significantly diminish the cracking of the PP powders.

预聚除能够提高催化剂的活性外，对提高聚丙烯粉料的表观密度和等规指数、减少聚丙烯颗粒的破碎有显著影响。

4·The catalyst with big size and low bulk density is prone to expand.

大粒径、低堆密度催化剂易膨胀；

5·The catalyst also had high side pressure, low bulk density and good capacity of self - generation.

催化剂还具有强度高、堆密度小、自再生能力强等特点。