Co-production of cyclohexylamine and bis(para-aminocyclohexyl) methane
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United States of America Patent
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Dec 4, 2007
Grant Date -
Jun 22, 2006
app pub date -
Dec 15, 2005
filing date -
Dec 16, 2004
priority date (Note) -
Expired
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Abstract
Embodiments of the present invention disclose a process for the co-production of bis(para-aminocyclohexyl) methane (PACM). Also disclosed are articles of manufacture made using PACM produced by methods of this invention. The methods of the present invention generally include a first mixture having methylene di-aniline (MDA) and a second aromatic amine. The first mixture has less than 15% polymeric MDA by weight and the second aromatic amine is present in an amount to render the first mixture a liquid. The first mixture is hydrogenated to produce a product mixture comprising PACM and at least one second non-aromatic amine.
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