聚對苯二甲酸乙二酯（PET）的生產(chǎn)及工藝研究

材料科學論文編號:CL046  論文字數(shù):12162,頁數(shù):25

目 錄
中文摘要……………………………………………………………………………Ⅰ
英文摘要……………………………………………………………………………Ⅱ
目錄
1.緒論…...…………………………………………………………………………...1
  1.1 PET合成反應原理…………………………………………………………...1
     1.1.1 酯化反應……………………………………………………………….1
     1.1.2 縮聚反應……………………………………………………………….2
     1.1.3 副反應………………………………………………………………….3
 1.2華特斯聚酯裝置簡介…..…..………………………………………………...3
 1.2.1 裝置簡介………..………………………………..…………………….3
 1.2.2 工藝特點………………..……………..……………………………….4
2.主工藝流程簡介…………………………………………………………………..5
   2.1主要物料規(guī)格…………..…………………………………………………...5
   2.2主要物料物理性質(zhì)…………..……………………………………………...7
   2.3原料輸送、制備以及漿料的配制…………..……………………………...8
   2.4酯化反應系統(tǒng)……………………………………………………………… 9
   2.5縮聚反應系統(tǒng)………………………………………………………………11
   2.6熔體輸送及造粒包裝………………………………………………..……..12
3.PET產(chǎn)品質(zhì)量影響因素………………………………………………………….12
   3.1原料的影響分析……...……….…….……………………………………...12
   3.2生產(chǎn)工藝的影響分析………………………………………………………15
 3.3.結(jié)論…………………………………………………….…………………...18
4.總結(jié)與展望……………………………………………………………………….19
致    謝……………………………..……………………………………………..21
參考文獻 …………………………………………………………………………..22

摘要：聚酯（PET）自大工業(yè)化生產(chǎn)以來，最大的用途是加工成滌綸纖維，目前，世界各國PET生產(chǎn)采用的技術(shù)路線主要有3種，即DMT法、PTA法、EO法,本文著重介紹了PTA法合成PET，研究了其合成的原理，介紹了浙江華特斯聚酯裝置及主生產(chǎn)工序。裝置采用直接酯化、連續(xù)式縮聚的聚酯生產(chǎn)工藝，以精對苯二甲酸（PTA）和乙二醇（EG）為原料，以二氧化鈦（TiO2）為消光劑，以乙二醇銻（Sb2（OCH2CH2O）3）為催化劑，生產(chǎn)聚對苯二甲酸乙二醇酯（PET）。研究了其主生產(chǎn)工藝流程，原料輸送、制備以及漿料配制、酯化反應系統(tǒng)、預縮聚反應系統(tǒng)、終縮聚反應系統(tǒng)、熔體輸送及造粒包裝等。并探討了酯化反應與縮聚反應的影響因素如漿料摩爾比、酯化率等。

關(guān)鍵詞：PTA法制PET；酯化反應；預縮聚反應；終縮聚反應
 

Abstract: Polyester (PET) industrial production has been arrogant, the biggest use is processed into polyester fibers, at present, countries around the world the technology used in PET production line, there are mainly three kinds, namely, law DMT, PTA Act, EO of this paper focuses on the PTA Act Synthesis of PET, the study of its principles, introduced a polyester plant in Zhejiang Huatesi and the main production processes. Installation of direct esterification, continuous polycondensation of polyester production process, purified terephthalic acid (PTA) and ethylene glycol (EG) as raw materials and titanium dioxide (TiO2) for the extinction agent to ethylene glycol Antimony (Sb2(OCH2CH2O)3) as a catalyst, producing polyethylene terephthalate (PET).Study of its main production process, raw materials transportation, preparation and pulp preparation, esterification system, pre-condensation reaction system, final polycondensation reaction systems, transportation and melt granulation packaging. And to explore the esterification and polycondensation reaction of factors such as slurry ratio, yield, and so on.

Key words: PTA legal PET; esterification; pre-condensation reaction; final polycondensation reaction