Magnetic field affects strongly characteristics of spherical cathode diode.

In order to produce high-impact propylene copolymers in loop reactor, a kind of spherical polymerization catalyst DQ-VI with better performance was developed.

针对工业环管反应器中高抗冲聚丙烯共聚产品的生产，开发出一种性能更加优良的球形聚丙烯催化剂DQ&VI。

互联网摘选

Homogeneous design of experimentation was applied to gaseous copolymerization of ethylene-propylene over spherical Ziegler-Natta catalyst to prepare ethylene-propylene impact copolymer.

运用均匀设计法对乙烯-丙烯气相共聚进行实验设计，将反应条件与聚丙烯乙丙抗冲共聚物（简称共聚物）的组成进行关联。

互联网摘选

Method of intersecting point locus for calculation of isothermal effectiveness factor in a spherical porous catalyst pellet

线族交点轨迹法求算球形催化剂的等温有效系数

互联网摘选

Study on the properties of a new spherical support catalyst for polyethylene has been touched.

对一种采用球型载体合成的聚乙烯催化剂的性能进行研究。

互联网摘选

A random network model for spherical porous catalyst pellet

多孔球形催化剂颗粒的随机网络模型

互联网摘选

When the intrinsic reaction rate is non-first order, the differential equation describing the distribution of the concentration of a reactant in spherical catalyst at isothermal condition is a second order non-linear ordinary differential equation and does not have analytical solution.

等温情况下，当本征反应速率是非一级反应，描述球形催化剂内反应组分浓度分布的微分方程为二阶非线性常微分方程，无解析解。

互联网摘选

According to the pellet models constructed in the first part of this paper, the diffusion reaction performance in a spherical catalyst pellet, and the effects of operation conditions and pellet size on reactivity and product selectivity were systematically investigated.

在催化剂颗粒模型化的基础上，考察了费托合成多重反应体系中球型催化剂的颗粒尺寸、操作条件及反应物在催化剂颗粒内的扩散反应行为等对反应性和选择性的影响。

互联网摘选

The structure and properties including polymer stereoregularity, relative molecular mass and distribution and thermal behavior of polypropylene produced with DQ spherical catalyst on industrial batch reactors were studied by 13 C NMR, GPC and DSC.

采用13c NMR、GPC和DSC等分析测试方法对用DQ型球形催化剂在间歇法聚丙烯生产装置上所生产的聚丙烯的规整性、相对分子质量及其分布、聚合物的热行为等进行了研究。

互联网摘选

A high efficiency spherical catalyst HDC developed by Research Institute of Petroleum Processing firstly used in a 140kt/ a polypropylene unit with a loop reactor at Maoming Petrochemical Ethylene Industrial Company was introduced.

介绍了石油化工科学研究院研究开发的高效球型聚丙烯HDC催化剂在茂名石化乙烯工业公司140kt/a环管聚丙烯装置上首次工业应用的情况。

互联网摘选

This paper evaluated the performance of spherical catalyst HDC for propylene polymerization and explored the influences of prepolymerization, polymerization temperature, time and hydrogen concentration on the polymerization behaviour of HDC.

对聚丙烯高效球形催化剂HDC进行了性能评价，并探讨了预聚合、聚合温度、时间、氢气浓度等因素对HDC聚合行为的影响。

互联网摘选

The key influence factor on the performance of DQ spherical catalyst had been described. The synthetic process and recipe, the stereo specificity and the activity of the catalyst had all been improved.

分析了影响DQ催化剂性能的关键因素，改进了DQ催化剂的制备工艺及配方，提高了DQ催化剂的立体定向性及聚合反应活性。

互联网摘选

The effectiveness of seven-channel spherical catalyst is 0. 2369~ 0.3550. The average absolute deviation between the calculated effectiveness and those of experiments is 8.22%.

模拟结果表明七孔球形催化剂效率因子从0.2369到0.3550之间，与实验值相比较，平均相对误差8.22%；

互联网摘选

Three-robed catalyst: Spherical catalyst: In addition, internal and external effective wetting of porous catalyst in a rotating packed bed was considered in the same system.

此外，在相同的实验体系中，通过稳态降阶示踪剂法对旋转床内催化剂颗粒内外部的有效润湿进行研究，实测气液流量和转子转速对催化剂表面润湿率的影响。

互联网摘选

Spherical Catalyst DQ-1 for Propylene Polymerization

球形催化剂DQ-1的丙烯聚合行为

互联网摘选

In order to improve the stereospecificity of DQ spherical catalyst, the synthetic process and recipe of the catalyst had been studied.

为了解决DQ催化剂立体定向性方面存在的问题，对DQ催化剂的合成工艺及配方进行了研究。

互联网摘选

Spherical catalyst HDC for propylene polymerization

HDC高效球形催化剂用于丙烯聚合

互联网摘选

The influences of spherical catalyst pellets with δ-function activity profiles on the selectivity of multi-component parallel reactions were studied.

本文分析了活性具有δ&函数分布的多孔球形催化剂对多组分平行竞争反应选择性的影响。

互联网摘选

Polymerization of Propylene on TiCl_4/ MgCl_2 Spherical Catalyst

球形TiCl4/MgCl2催化剂催化丙烯聚合

互联网摘选

Spherical Catalyst DQ-1 for Polypropylene

聚丙烯球形催化剂DQ-1

互联网摘选

On the properties of a_ ( 110-5q) spherical catalyst for ammonia synthesis

A（110-5Q）球形氨合成催化剂性能的初步考察

互联网摘选