Chemistry: physical processes – Physical processes – Crystallization
Reexamination Certificate
2002-11-08
2009-06-02
Drodge, Joseph W (Department: 1797)
Chemistry: physical processes
Physical processes
Crystallization
C023S296000, C062S532000, C062S540000, C062S542000, C062S544000, C210S774000, C422S245100, C422S252000, C562S598000, C562S600000, C585S812000
Reexamination Certificate
active
07540884
ABSTRACT:
A process for purifying removal of crystals from their suspension in mother liquor by means of a washing column having forced transport in which the process chamber is encased by a metal wall which, on its side facing away from the process chamber, is heated at least along the length of the pure melt zone.
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Baumann Dieter
Eck Bernd
Hammon Ulrich
Heilek Joerg
Mueller-Engel Klaus Joachim
BASF - Aktiengesellschaft
Drodge Joseph W
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
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