Title:
ROUTING OF PURIFIED AROMATIC CARBOXYLIC ACID FILTER RINSE FOR ENERGY OPTIMIZATION
Document Type and Number:
WIPO Patent Application WO/2019/019012
Kind Code:
A1
Abstract:
A process for manufacturing a purified aromatic carboxylic acid is provided. The process comprises purifying a crude aromatic carboxylic acid in a purification zone to form a purified aromatic carboxylic acid; crystallizing a purified aromatic carboxylic acid in a crystallization zone to form a solid/liquid mixture comprising purified aromatic carboxylic acid solids; filtering the solid/liquid mixture through a filter member of a rotary pressure filter apparatus to form a filter cake comprising the purified aromatic carboxylic acid solids; removing the filter cake from the filter member; rinsing the filter member to produce a filter rinse product, wherein the filter rinse product comprises purified aromatic carboxylic acid; and directing at least a portion of the filter rinse product downstream of the purification zone for recycle to the rotary pressure filter apparatus.
Inventors:
BITSCH-LARSEN ANDERS (US)
LIANG TIAN (US)
LIANG TIAN (US)
Application Number:
PCT/CN2017/094288
Publication Date:
January 31, 2019
Filing Date:
July 25, 2017
Export Citation:
Assignee:
BP CORP NORTH AMERICA INC (US)
International Classes:
C07C51/42; C07C51/43; C07C51/47; C07C63/26
Foreign References:
| US20150183709A1 | 2015-07-02 | |||
| US20150182890A1 | 2015-07-02 | |||
| US20150183705A1 | 2015-07-02 |
Other References:
See also references of EP 3658526A4
Attorney, Agent or Firm:
CHINA SINDA INTELLECTUAL PROPERTY LTD. (CN)
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