中石化上海工程将出席聚碳酸酯研讨会，探讨非光气法PC的工艺技术
中国是全球聚碳酸酯(PC)市场需求增长最快的国家，2014年全国消费量约160万吨，但净进口量约126万吨，对外依存度达到80%左右。由于技术限制，在2014年前我国的聚碳酸酯生产基本为拜耳、帝人化学、三菱瓦斯化学等外国公司所控制。
中石化是参与聚碳酸酯合资建设的重点企业。2012年2月，中石化与三菱化学合资建设的6万吨/年聚碳酸酯装置顺利投产，该项目位于燕山石化厂区内，项目总投资21.6亿元，采用三菱化学的专利技术。2012年中石化与SABIC宣布投资约为110亿元，在天津建设的26万吨/年聚碳酸酯项目，该项目处于待推进阶段。
聚碳酸酯生产工艺主要有光气界面缩聚法、熔融酯交换法和非光气法三种。光气界面缩聚法是目前工业上应用最为广泛的工艺；而熔融酯交换法是一种间接光气法工艺，其原料碳酸二苯酯（DPC）需要通过光气法反应制备。非光气法生产工艺是一种符合环境要求的绿色工艺，具有全封闭、无副产物、基本无污染等特点，从根本上摆脱了有毒原料光气，有望成为今后聚碳酸酯工艺的主要发展方向。
亚化咨询主办的2016首届聚碳酸酯技术与市场研讨会将于2016年1月21-22日在上海召开，来自中石化上海工程公司的专家将出席会议并做大会报告，介绍《非光气法聚碳酸酯的工艺研究》。
SINOPEC Shanghai Engineering will Attend Polycarbonate Conference and Introduce Non-Phosgene Polycarbonate Process
China, whose demand for polycarbonate is of the fastest increase in the world, consumed about 1.6 Mt/a polycarbonate in 2014, with the net import of about 1.2 Mt, and the external dependence reached as high as about 80%. However, due to technology limitation, polycarbonate production in China was almost monopolized by foreign corporations, including Bayer, Teijin, Mitsubishi Gas Chemical, etc.
SINOPEC is a key enterprise to participate in the construction of polycarbonate joint venture. In Feb 2012, the 60kt/a polycarbonate project jointly invested and built by SINOPEC and Mitsubishi Chemical with a capital budget of CNY 2.16bn was successfully commissioned in the plant area of Yanshan Petrochemical, which used the patented technology from Mitsubishi Chemical. In 2012, SINOPEC and SABIC announced the construction of 260kt/a polycarbonate project in Tianjin with the investment of about CNY 11bn, which is currently under the stage of to be promoted.
Polycarbonate production process mainly include phosgenation interracial polycondensation, melting transesterification and non-phosgene method. Currently, Phosgenation interracial polycondensation is the most widely used process in industrial application, and melting transesterification is a kind of indirect phosgenation, whose raw material diphenyl carbonate (DPC) is prepared by phosgenation. While, non-phosgene method belongs to a kind of green process meeting the environmental requirements, with characteristics of full closed, by-product free, basically pollution-free, etc., which fundamentally gets rid of the toxic raw material of phosgene and is expected to become a main development direction of polycarbonate process.
Polycarbonate Technologies & Market Conference will be held by ASIACHEM on Jan 21st-22nd 2016, in Shanghai, China. Expert from SINOPEC Shanghai Engineering will attend the conference and give a presentation, to introduce < Process Research on Non-Phosgene Polycarbonate Production>.
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