Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Patent
1990-01-26
1991-04-30
Stoll, Robert L.
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
568932, 568939, 568940, 252194, 423395, 423397, C07C20511
Patent
active
050120190
ABSTRACT:
The present invention relates to a process for purifying an aromatic nitration product mixture comprising a nitrated aromatic compound, water, and nitric or sulfuric acid which comprises without regard to sequence: (a) removing at least a portion of said water from said product mixture by contacting and reacting said water in said mixture with magnesium nitrate trihydrate to form magnesium nitrate pentahydrate or magnesium nitrate hexahydrate and removing said magnesium nitrate pentahydrate or magnesium nitrate hexahydrate from said nitrated aromatic compound in said product mixture, and (b) removing at least a portion of said acid from said product mixture by contacting and reacting said acid with an ionic or non-ionic absorbent to form a reacted absorbent and removing said reacted absorbent from said nitrated aromatic compound in said product mixture.
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Brooker Robert T.
Craney Paul J.
Imm Peter C.
Mason Robert W.
Offill Thomas W.
Carlson Dale Lynn
Olin Corporation
Sayala Chhaya
Stoll Robert L.
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