Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
METHOD FOR RECYCLING MOTHER LIQUOR IN PTA REFINED UNIT
Document Type and Number:
WIPO Patent Application WO/2018/171028
Kind Code:
A1
Abstract:
The present invention relates to a method for recycling mother liquor in a PTA refined unit. The present invention achieves recovery of waste heat carried by PTA mother liquor and PT acid by using high-efficient multi-stage flash evaporation technology, low temperature waste heat power generation technology, heat pump heating and refrigeration technology, low temperature crystallization and the like, realizing effective use of heat carried by the PTA mother liquor, solving the impact of crystallization of PT acid on subsequent systems, reducing environmental pollution, and generating huge economic benefits.

Inventors:
ZHAO XU (CN)
SHEN TAO (CN)
WANG TIANBAO (CN)
ZHANG WANYAO (CN)
LU YUANRUI (CN)
XU LILONG (CN)
JIA MIN (CN)
HAN DONGZHAO (CN)
XIE XIAOLING (CN)
QIU YONGNING (CN)
Application Number:
PCT/CN2017/084350
Publication Date:
September 27, 2018
Filing Date:
May 15, 2017
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
TIANHUA INST OF CHEMICAL MACHINERY AND AUTOMATION CO LTD (CN)
International Classes:
C02F9/10; C07C51/42; C07C63/26
Foreign References:
CN101139277A2008-03-12
CN1278239A2000-12-27
US20020183546A12002-12-05
Other References:
See also references of EP 3505498A4
Attorney, Agent or Firm:
LECOME INTELLECTUAL PROPERTY AGENT LTD. (CN)
Download PDF: