Promoters for hydrogenation of aromatic amines
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United States of America Patent
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May 25, 1993
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app pub date -
Feb 27, 1992
filing date -
Feb 27, 1992
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Abstract
A process for increasing the rate of catalytic hydrogenation of aromatic amines by reacting aromatic amines with hydrogen in the presence of a noble metal catalyst, an organic solvent or a mixture of solvents, and at least one salt of a transition or lanthanide metal as a promoter, in an effective amount to increase the rate of the hydrogenation reaction, decrease the induction period, and decrease the amount of higher boiler by-products.
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