CATALYTIC HYDROGENATION OF AROMATIC AMINES AND CATALYST THEREFOR
This invention relates to an improved hydrogenation process wherein aromatic amines are hydrogenated to their ring hydrogenated counterparts using an improved rhodium catalyst and to the catalyst. The aromatic amines are represented by the formulas: wherein R is hydrogen or C1-6 aliphatic, R1 and R2...
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| creator | ROBAATO AREKUSANDAA TORESUKOTSUTO GAMINI ANANDA BEDAAJI JIEEMUSU FUAAGASON HOWAITO RICHIYAADO JIYON JIENKINSU |
| description | This invention relates to an improved hydrogenation process wherein aromatic amines are hydrogenated to their ring hydrogenated counterparts using an improved rhodium catalyst and to the catalyst. The aromatic amines are represented by the formulas: wherein R is hydrogen or C1-6 aliphatic, R1 and R2 are hydrogen or C1-6 aliphatic, A is C1-4, NH or n is 0-2, x is 1-3 and y is 1 to 2 except the sum of the y groups in Formula I excluding A may be 1. The rhodium catalyst is supported on titania bonded to silica or zirconia or bonded with silica, zirconia or titania from a sol or zirconia bonded with silica or alumina. The resulting catalyst has greater activity and attrition resistance. Zirconia bonded with silica or alumina also results in a catalyst with increased attrition resistance. |
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The aromatic amines are represented by the formulas: wherein R is hydrogen or C1-6 aliphatic, R1 and R2 are hydrogen or C1-6 aliphatic, A is C1-4, NH or n is 0-2, x is 1-3 and y is 1 to 2 except the sum of the y groups in Formula I excluding A may be 1. The rhodium catalyst is supported on titania bonded to silica or zirconia or bonded with silica, zirconia or titania from a sol or zirconia bonded with silica or alumina. The resulting catalyst has greater activity and attrition resistance. 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The aromatic amines are represented by the formulas: wherein R is hydrogen or C1-6 aliphatic, R1 and R2 are hydrogen or C1-6 aliphatic, A is C1-4, NH or n is 0-2, x is 1-3 and y is 1 to 2 except the sum of the y groups in Formula I excluding A may be 1. The rhodium catalyst is supported on titania bonded to silica or zirconia or bonded with silica, zirconia or titania from a sol or zirconia bonded with silica or alumina. The resulting catalyst has greater activity and attrition resistance. 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The aromatic amines are represented by the formulas: wherein R is hydrogen or C1-6 aliphatic, R1 and R2 are hydrogen or C1-6 aliphatic, A is C1-4, NH or n is 0-2, x is 1-3 and y is 1 to 2 except the sum of the y groups in Formula I excluding A may be 1. The rhodium catalyst is supported on titania bonded to silica or zirconia or bonded with silica, zirconia or titania from a sol or zirconia bonded with silica or alumina. The resulting catalyst has greater activity and attrition resistance. Zirconia bonded with silica or alumina also results in a catalyst with increased attrition resistance.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ACYCLIC OR CARBOCYCLIC COMPOUNDS APPARATUS THEREFOR CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY GENERAL METHODS OF ORGANIC CHEMISTRY METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING |
| title | CATALYTIC HYDROGENATION OF AROMATIC AMINES AND CATALYST THEREFOR |
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