发明授权
- 专利标题： Method of recycling mother liquid of pure terephthalic acid (PTA) refining unit
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申请号： US16330230申请日： 2017-05-15
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公开(公告)号： US10787411B2公开(公告)日： 2020-09-29
- 发明人: Xu Zhao , Tao Shen , Tianbao Wang , Wanyao Zhang , Yuanrui Lu , Lilong Xu , Min Jia , Dongzhao Han , Xiaoling Xie , Yongning Qiu
- 申请人： TIANHUA INSTITUTE OF CHEMICAL MACHINERY AND AUTOMATION CO., LTD
- 申请人地址： CN Lanzhou, Gansu
- 专利权人： TIANHUA INSTITUTE OF CHEMICAL MACHINERY AND AUTOMATION CO., LTD
- 当前专利权人： TIANHUA INSTITUTE OF CHEMICAL MACHINERY AND AUTOMATION CO., LTD
- 当前专利权人地址： CN Lanzhou, Gansu
- 代理机构： Muncy, Geissler, Olds & Lowe, P.C.
- 优先权： com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@7d406cb9
- 国际申请： PCT/CN2017/084350 WO 20170515
- 国际公布： WO2018/171028 WO 20180927
- 主分类号： C07C51/44
- IPC分类号： C07C51/44 ; B01D3/06 ; B01D9/00 ; B01D3/08 ; B01D3/00 ; C07C63/26
摘要：
The present invention relates to a method of recycling mother liquid of a PTA refining unit. The present invention recycles waste heat and PT acids of a PTA mother liquid to effectively utilize heat in the PTA mother liquid, solves influence of crystallization of the PT acids on subsequent system, reduces pollution to the environment, and can produce huge economic benefits by using high efficient multistage flash distillation technology, low temperature cogeneration technology, heat pump heating and cooling technology, and low temperature crystallization technology.
公开/授权文献
- US20190225569A1 METHOD OF RECYCLING MOTHER LIQUID OF PTA REFINING UNIT 公开/授权日：2019-07-25
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