Description: 502 catalyst, solid sorbent, or support therefor: product or process of making / 502 catalyst, solid sorbent, or support therefor: product or process of making/(100) catalyst or precursor therefor (102) plural component system comprising a - group i to iv metal hydride or organometallic compound - and b - group iv to viii metal, lanthanide or actinde compound - (i.e., alkali metal, ag, au, cu, alkaline earth metal, be, mg, zn, cd, hg, sc, y, al, ga, in, tl, ti, zn, hf, ge, sn or pb hydride or organometallic compound and ti, zr, hf, ge, sn, pb, v, nb, ta, as, sb, bi, cr, mo, w, po, mn, tc, re, iron group, platinum group, atomic number 57 to 71 inclusive or atomic number 89 or higher compound) (103) component a metal is group ia, iia or iiia and component b metal is group ivb to viib or viii (i.e., alkali metal, alkaline earth metal, be, mg, al, ga, in or tl and ti, zr, hf, v, nb, ta, cr, mo, w, mn, tc, re, iron group or platinum group) (e.g., ziegler catalyst, etc.) (118) and a third component c (i.e., an additive other than a saturated hydrocarbon or an aromatic hydrocarbon free of aliphatic or cycloaliphatic unsaturation) (129) metal compound other than which could be produced in situ by reaction of a group ia, iia, or group iiia metal compound present with a titanium or vanadium compound present (132) aluminum compound
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