The article at my page about the dehydrogenation of butanediol is referencing Ind. Eng. Chem. 26, 878 (1934). Unfortunately, I don't have access to that article, but I am sure that the preparations I have on my page will yield a suitably active catalyst.
Where have you found your formulas for copper chromite? Organic Syntheses says it is CuCr2O4 in their listed preparation, and Aldrich sells it as 2CuO.Cr2O3 with CAS No [12053-18-8].