Catalysts for the dehydrogenation to oxy-carboxylic acid ethylene glycol or dehydrogenation of (derivative) to the amino carboxylic acid amino alcohols, their preparation and the use of the catalyst

摘要

(57) to precipitate zirconium hydroxide pH value of 4 to 10 to be achieved using a base from [Abstract] zirconium salt solution, aqueous solutions of salts and possibly other copper zirconium hydroxide suspension was added to precipitate the pH value of 8 to 14 until is achieved, the hydroxide of metal contained in the salt of the other, was obtained and in some cases copper hydroxide by the addition of other bases It is the suspension was filtered, washed, dried, calcined so as to contact the 2 to 4 hours in air at 450~600 ℃, is reduced 2-4 hours in a stream of hydrogen at 200~250 ℃ finally by containing other metals can be produced, in some cases zirconium, copper, metal described at that time, is reduced are precipitated as hydroxides, washed, dried, and and calcined, catalysts for the dehydrogenation to oxy-carboxylic acid ethylene glycol or dehydrogenation of (derivative) to the amino acid amino alcohol.