Low metal loaded, alumina supported, catalyst compositions and amination process
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01J-023/00
B01J-021/00
출원번호
US-0587355
(2009-10-06)
등록번호
US-8293676
(2012-10-23)
발명자
/ 주소
King, Stephen W.
Mierau, Stefan K.
출원인 / 주소
Union Carbide Chemicals & Plastics Technology LLC
대리인 / 주소
Kagan Binder, PLLC
인용정보
피인용 횟수 :
4인용 특허 :
72
초록▼
The present invention provides catalyst compositions useful for transamination reactions. The catalyst compositions have a catalyst support that includes transitional alumina, use a low metal loading (for example, less than 25 wt. %), and do not require the presence of rhenium. The catalyst composit
The present invention provides catalyst compositions useful for transamination reactions. The catalyst compositions have a catalyst support that includes transitional alumina, use a low metal loading (for example, less than 25 wt. %), and do not require the presence of rhenium. The catalyst compositions are able to advantageously promote transamination of a reactant product (such as the transamination of EDA to DETA) with excellent activity and selectivity, and similar to transaminations promoted using a precious metal-containing catalyst.
대표청구항▼
1. A catalyst composition comprising: (a) a support portion comprising an acidic mixed metal oxide comprising a transitional alumina comprising theta phase alumina, delta phase alumina, or mixtures of theta and delta phase aluminas and a second metal oxide, wherein the second metal oxide has a weigh
1. A catalyst composition comprising: (a) a support portion comprising an acidic mixed metal oxide comprising a transitional alumina comprising theta phase alumina, delta phase alumina, or mixtures of theta and delta phase aluminas and a second metal oxide, wherein the second metal oxide has a weight percentage that is less than the weight percentage of alumina, and(b) a catalyst portion comprising one or more metals selected from the group consisting of cobalt and nickel,wherein there is no, or less than 0.01 wt. % rhenium in the catalyst composition, and the catalyst portion is 25 wt. % or less of the catalyst composition. 2. The catalyst composition of claim 1 wherein the catalyst portion is 20 wt. % or less of the catalyst composition. 3. The catalyst composition of claim 2 wherein the catalyst portion is in the range of 3 wt. % to 18 wt. % of the catalyst composition. 4. The catalyst composition of claim 3 wherein the catalyst portion is in the range of 3 wt. % to 13 wt. % of the catalyst composition. 5. The catalyst composition of claim 4 wherein the catalyst portion is in the range of 5 wt. % to 10 wt. % of the catalyst composition. 6. The catalyst composition of claim 1 wherein the catalyst portion comprises cobalt and nickel. 7. The catalyst composition of claim 6 wherein the catalyst portion comprises cobalt and nickel in a weight ratio in the range of 1:9 to 9:1. 8. The catalyst composition of claim 7 wherein the catalyst portion comprises cobalt and nickel in a weight ratio in the range of 1:4 to 4:1. 9. The catalyst composition of claim 1 wherein the catalyst portion comprises no rhenium, or less than 0.005 wt. % rhenium. 10. The catalyst composition according to claim 1, wherein the catalyst portion further comprises a selectivity promoter comprising at least one element selected from Group IA, Group IIA, Group IIIA, Group IVA, Group VA, Group VIA, Group VIIA, Group VIIIA, Group IB, Group JIB, and Group IVB of the Periodic Table, and the selectivity promoter is not rhenium, rhodium, platinum, palladium, or iridium. 11. The catalyst composition according to claim 1 wherein the transitional alumina comprises theta alumina. 12. The catalyst composition according to claim 11 wherein the transitional alumina further comprises one or more of gamma or alpha alumina. 13. The catalyst composition according to claim 1 wherein the support portion comprises at least 50 weight percent transitional phase alumina. 14. The catalyst composition according to claim 1 wherein the second metal oxide is selected from the group consisting of silicon, lanthanum, magnesium, zirconium, boron, titanium, niobium, tungsten and cerium. 15. The catalyst composition according to claim 1 wherein the support portion comprises the second metal oxide in an amount in the range of 5 weight percent to less than 50 weight percent, based upon the weight of the support portion. 16. The catalyst composition according to claim 1 wherein the support portion is selected from the group consisting of: an extrudate having a diameter of ⅛ inches (3.175 mm) or less;a sphere having a diameter of 3 mm or less; anda trilobe having a diameter of ⅛ inches (3.175 mm) or less. 17. The catalyst composition according to claim 1 wherein the transitional alumina is more than 50 weight percent of the alumina contained in the support. 18. The catalyst composition according to claim 17 wherein the transitional alumina is at least 80 weight percent of the alumina contained in the support. 19. The catalyst composition according to claim 1 wherein the transitional alumina comprises a single phase of transitional alumina of at least 95 weight percent of the alumina contained in the support. 20. The catalyst composition according to claim 19 wherein the transitional alumina comprises a single phase of transitional alumina of at least 98 weight percent of the alumina contained in the support. 21. The catalyst composition of claim 1 wherein the cobalt is present in an amount in the range of 5 wt. % to 15 wt. %, or nickel is present in an amount in the range of 5 wt. % to 15. 22. The catalyst composition of claim 21 wherein the cobalt is present in an amount in the range of 6 wt. % to 9 wt. %, or nickel is present in an amount in the range of 6 wt. % to 9 wt. %.
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