Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing
Patent
1993-12-08
1994-06-14
Raymond, Richard L.
Organic compounds -- part of the class 532-570 series
Organic compounds
Amino nitrogen containing
564433, C07C20984
Patent
active
053211596
ABSTRACT:
Disclosed is a method for decolorizing alkylated diarylamines, which have been made using aluminum chloride catalyst, by mixing and optionally heating the colored diarylamine with clay, then separating the decolorized diarylamine from the clay. Alternatively, the alkylated diarylamines, which have been made using aluminum chloride catalyst, may be decolorized by passing the diarylamines through a filter medium comprising clay.
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Filla Deborah S.
Lai John T.
Shaw Chong-Kuang
Laferty Samuel B.
Raymond Richard L.
Shust Nestor W.
The B. F. Goodrich Company
Tucker Mary Ann
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