Bimetallic cluster catalysts

Details Bimetallic cluster catalysts Bimetallic cluster catalysts

1984-01-17

1986-08-12

Sneed, Helen M. S.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heavy metal containing

556 30, 502152, 518714, C07F 1100, C07F 1502

Patent

active

046057510

ABSTRACT:
A facile synthesis of the precursor, Cp.sub.2 Mo.sub.2 (.mu.-S).sub.2 (.mu.-SH).sub.2, to novel heterobimetallic cluster compositions (e.g., Cp.sub.2 Mo.sub.2 Fe.sub.2 (.mu.-S).sub.2 (CO).sub.8 ; Cp.sub.2 Mo.sub.2 Ni.sub.2 (.mu..sub.3 -S).sub.4 (CO).sub.2 ; Cp.sub.2 Mo.sub.2 Co.sub.2 (.mu..sub.3 -S).sub.2 (.mu..sub.4 -S)(CO).sub.4 ; Cp.sub.2 Mo.sub.2 Fe.sub.2 (.mu..sub.3 -S).sub.4 (CO).sub.6 and Cp.sub.4 Mo.sub.2 Ni.sub.2 S.sub.4 and the subsequent synthesis and use of the heterobimetallic cluster compositions as highly active and selective catalysts for the hydrogenation of carbon monoxide. Such heterobimetallic cluster catalysts supported on alumina exhibit extraordinary activity and selectivity with respect to the formation of ethane without concommitant formation of C.sub.3, C.sub.4 and heavier hydrocarbons. The catalysts are contemplated as being useful for syngas conversion even in the presence of several ppm of H.sub.2 S or the like in the feedstream.

REFERENCES:
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patent: 4039566 (1977-08-01), Fachinetti et al.
patent: 4124647 (1978-11-01), McVicker
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patent: 4199520 (1980-04-01), Cosby et al.
patent: 4320064 (1982-03-01), Vidal
patent: 4349521 (1982-09-01), Shore et al.
patent: 4349522 (1982-09-01), Shore et al.
patent: 4481375 (1984-11-01), Kalk et al.
Klinger et al., J.A.C.S. 97(12), pp. 3535-3536 (1975).

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