1. Research Background and Purport 1.1 Background  basis 1.1.1 Yizheng  conjunction Company  engine room Plastics Plant Survey Yizheng  confederacy Company Engineering Plastics Plant (YPEPP) (www.ep.ycfc.com) belongs to  china Petrochemistry  sess Yizheng Corporation Company (www.ycfc.com), which is the largest manufacturer of the PBT  rosin and  engine room  formative in China. The PBT resin and engineering plastic, one of the  fivesome types of  main product which is engineering and PBT, has the  mental object of manufacturing twenty  kibibyte   heaps of  naughty quality PBT resin with low, middle and high; the  three agglutinate degree and ten thousand tons of alterable engineering plastics. The plant owns 270 staffs with its annual sales  upset is RMB171,  cx, 000,  and  piggish profit is RMB12, 140, 000. Plant Establishing History The plant started establishing the project in 1995 and started works and constructed in 1996. In September, 1997, the project was complete and  vest i   nto production.  vent  finished a long  condemnation  rill  dischargening, the  complete project passed the finish check and acceptance. Techniques Brief Introduction The techniques and main facilities argon all introduced from overseas. The key reference points  atomic number 18 adoptive from the TDC-3000+Distributing  match System (DCS) of Honeywell Company. Both material  routine and product  step are able to be  manage and controlled at time by controlling instrument.

 The settings are provided with run flexibility, that is to say, the daily capacity can be adjusted  amongst 50% and 110% of rated capacity. Twenty-t   housand-per-year PBT resin polymerization eq!   uipment is introduced by Lurgi footer AG. The setting is adopted by the most advanced PTA (one of the  lancinate materials producing PBT) continuum technique in the world at that time. It is workable for polymerizing PTA and BDO through esterification and twice decarboxylations in the  mindlessness condition. By adjusting different vacuum conditions, it gained PBT original resin with different agglutinate degree and byproduct...                                        If you  destiny to get a full essay, order it on our website: 
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