US PATENT SUBCLASS 585 / 670-- .~.~ Using transition metal-containing catalyst

US PATENT SUBCLASS 585 / 670
.~.~ Using transition metal-containing catalyst

Current as of: June, 1999
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585 /	HD	CHEMISTRY OF HYDROCARBON COMPOUNDS

500	DF	UNSATURATED COMPOUND SYNTHESIS {14}
664	DF	.~ By double-bond-shift isomerization {6}
670		.~.~ Using transition metal-containing catalyst

DEFINITION

Classification: 585/670

Using transition metal-containing catalyst:

(under subclass 664) Subject matter wherein a catalyst is employed which contains a transition metal in free or combined form.

(1) Note. The transition metals are elements in which an inner electron shell, rather than an outer shell, is partially filled. In the periodic table they include

elements 21 through 30 (scandium through zinc), 39 through 48 (yttrium through cadmium), 57 through 80 (lanthanum through mercury), and 89 through 103 (actinium through lawrencium).