Patent ID: 7385071
Filing Date: 2008-06-10
Classification: C07C

Abstract:
1. A process for hydrocyanation of at least one substrate selected from the group consisting of 2-pentenenitrile, 3-pentenenitrile, 4-pentenenitrile, and 2-methyl-3-butenenitrile comprising contacting the substrate with hydrogen cyanide in the presence of a zero-valent nickel hydrocyanation catalyst and a promoter, wherein said promoter is a byproduct of a method for producing titanium tetrachloride from titanium ore, said method comprising the steps of contacting a titanium-containing ore with chlorine under reducing conditions to obtain a gaseous reaction product, recovering titanium tetrachloride from the reaction product, thereby leaving behind a residue, and condensing the residue to obtain said byproduct, and wherein said byproduct consists essentially of iron (II) chloride, manganese (II) chloride, sand, and coke.