共查询到20条相似文献,搜索用时 140 毫秒
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付义;赵成才;赵增辉;任鹤;张丽洋;郎笑梅 《中国塑料》2012,26(1):1-6
从生产工艺特点、催化剂、反应条件和产品特点方面详细介绍了气相法聚丙烯生产工艺,如Ineos公司的Innovene工艺、Dow公司的Unipol工艺、NTH公司的Novolen工艺、Lyondell Basell公司的Spherizone工艺、JPP公司的Horizone工艺、住友化学公司的Sumitomo工艺。概述了我国近几年气相法聚丙烯生产工艺的应用现状,并对我国气相法聚丙烯生产工艺的未来发展提出了建议。 相似文献
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胡廷芳 《化学工业与工程技术》2013,34(4):21-26
介绍了世界聚丙烯工艺技术和聚丙烯工业的主要专利特点,简述了气相法和本体法工艺以及国产聚丙烯催化剂在气相法聚丙烯工艺上的应用情况,并介绍了这些工艺在国内大型新建聚丙烯装置上的应用。 相似文献
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Novolen气相法聚丙烯工艺是世界首套气相法聚丙烯工艺,运转过程中Novolen聚丙烯工艺在丙烯精制、催化剂制备、聚合反应控制、挤压机操作等环节出现了不同程度的问题。通过对这些问题原因的分析和判断,明确了Novolen聚丙烯工艺的操作要点,对Novolen聚丙烯装置平稳操作具有一定的借鉴意义。 相似文献
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液相与气相本体法PP工艺路线分析 总被引:1,自引:0,他引:1
比较了气相法和液相法聚丙烯(PP)工艺的特点,在评价了2种工艺技术的物耗、能耗、产品牌号和废物排放以及技术经济指标的基础上,为北京燕山石油化工有限公司的PP装置选择经济上合理的生产技术提出了建议。 相似文献
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随着PP的消费量逐年高速的增加和生产快速发展,第三代最先进的,低成本,低能耗,短流程,易操作,不脱灰,不脱无规物,牌号多,高附加值的气相法工艺已得到最广泛的应用.本文在介绍聚丙烯聚合工艺的基础上,着重阐述几大主要气相工艺的流程,技术特点及PP工艺开发现状,论述了气相工艺在我国的应用情况及前景. 相似文献
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利用环管反应器串连气相反应器,同时加入少量丙烯、乙烯和氢气生产了共聚聚丙烯产品EPS30R,对产品结构性能进行了研究,找出影响产品的性能指标因素,为茂名乙烯聚丙烯共聚产品质量的提升和产品性能的进一步改进打下了坚实的基础。 相似文献
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Spherizone工艺是美国Lyondell Basell公司在Spheripol工艺基础上开发的最新颖、最先进的聚丙烯生产技术。介绍了Spherizone工艺技术特点、催化剂种类、反应器特点、聚丙烯产品典型牌号以及在薄膜、纤维、热成型和注塑领域的应用。Spherizone工艺作为最新一代的聚丙烯生产工艺,具有广阔的应用前景。 相似文献
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This work reports the flat sheet membrane preparation from syndiotactic polypropylene (sPP) by thermally induced phase separation (TIPS) process. sPP obtained by polymerization using metallocene catalysts and isotactic polypropylene (iPP) also obtained via metallocene catalysis with similar molecular weight were used. The phase diagrams of sPP and iPP with diphenylether as diluent were obtained. The properties of three representative membranes from sPP and three from iPP, prepared using different PP concentrations were evaluated with respect to membrane pore structure, gas flow, liquid displacement (bubble point), and water permeability. Two selected membranes, one from sPP and one from iPP were analysed with regard to polypropylene bulk morphology (X-ray diffraction) and mechanical properties (tensile strength). Under the same formation conditions, membranes with less inter-connected pores and less porous surface were obtained from sPP compared with iPP. Overall, lower permeabilities had been found for the sPP membranes, which were attributed to the difference in pore morphology. The differences between sPP and iPP were also discussed in terms of different driving forces for liquid-liquid demixing as deduced from the phase diagrams. The X-ray analysis had shown that the sPP membranes had a higher amorphous phase content than that in iPP, and the mechanical test had revealed a pronounced ductile behaviour for sPP samples. These results helped to explain the lower permeabilities of the sPP membranes, and their pressure-dependency. 相似文献
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阐述液相本体法聚丙烯的发展概况、间歇式液相本体法聚丙烯的特点、存在问题及其对策分析 ,以及聚丙烯塑料的应用和发展方向 相似文献