Material processing by repeated solvent expansion-contraction

Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing

Reexamination Certificate

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C427S213000, C427S294000, C427S296000, C423S658500, C210S768000, C210S774000, C264S007000

Reexamination Certificate

active

06884911

ABSTRACT:
A method for repeatedly converting a solvent from a state of solvent to a state of antisolvent with relatively little loss of solvent. The method is used to allow for processing of large amounts of solute material with minimum amounts of solvent.

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