Crystallization in a plate heat exchanger
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United States of America Patent
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Feb 27, 2001
Grant Date -
N/A
app pub date -
Feb 10, 1998
filing date -
Jun 30, 1997
priority date (Note) -
Expired
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Abstract
Crystallization of a crystallizable material is achieved through heat exchange in a plate heat exchanger is disclosed. A mixture or solution comprising a crystallizable material is passed through a plate heat exchanger at an appropriate temperature and pressure such that the material is selectively crystallized. The processes are particularly useful in the production of para-xylene, dimethylnaphthalene, aromatic carboxylic acids, and aromatic anhydrides.
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