Invention Grant
- Patent Title: Optimized production of aromatic dicarboxylic acids
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Application No.: US11181449Application Date: 2005-07-14
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Publication No.: US07888530B2Publication Date: 2011-02-15
- Inventor: Robert Lin , Marcel de Vreede
- Applicant: Robert Lin , Marcel de Vreede
- Applicant Address: US TN Kingsport
- Assignee: Eastman Chemical Company
- Current Assignee: Eastman Chemical Company
- Current Assignee Address: US TN Kingsport
- Agent Steven A. Owen; Bernard J. Graves, Jr.
- Main IPC: C07C51/16
- IPC: C07C51/16

Abstract:
Disclosed is an optimized process and apparatus for more efficiently producing aromatic dicarboxylic acids (e.g., terephthalic acid). In one embodiment the process/apparatus reduces costs by recovering and purifying residual terephthalic acid present in the liquid phase of an initial oxidation slurry. In another embodiment the process apparatus reduces costs associated with hydrogenation by forming a final composite product containing unhydrogenated acid particles.
Public/Granted literature
- US20060047165A1 Optimized production of aromatic dicarboxylic acids Public/Granted day:2006-03-02
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