Abstract: The present invention relates to a solid Ziegler-Natta catalyst component comprising transition metal compound of Group 4 to 6, and a polymeric nitrogen containing electron donor, preferably selected from linear or branched polyalkyleneimines or isomers or mixtures therefrom. The invention relates further to the use of said polymeric internal electron donor in a solid Ziegler-Natta catalyst component, a catalyst comprising said solid Ziegler-Natta catalyst component and a cocatalyst, and use of said catalyst in producing C2 to C6 olefin (co)polymers.

Abstract: A catalyst for producing hydrogen gas from carbon monoxide and water, and a procedure for generating hydrogen gas from carbon monoxide and water in the presence of a catalyst. The catalyst is formed from a complex of a group VIII metal carbonyl and a heterocyclic base, and is of the formula M.sub.3-n M'.sub.n (CO).sub.12-x L.sub.x +yBwhereinM=RuM'=Fen is 0, 1 or 2x is 0, 1 or 2L is a triaryl or trialkyl phosphine or phospite,B is a chelating bidentate aromatic heterocyclic nitrogen-containing base, andy is a whole or fractional number from 1-6.