1,4- butanediol from gamma - 1,4- catalyst and using them for the production of butyrolactone butanediol from gamma- butyrolactone manufacturing method of the

摘要

The invention of 1,4-butanediol (1,4-butanediol) - gamma-containing feed from the water - Method for producing lactones ( -butyrolactone) and butyronitrile, and relates to a catalyst used therein, and more particularly to a highly pure 1,4-butanediol as well as, a number of impurities, in particular containing crude acetal-type impurity (crude) 1,4-butanediol, gamma-that can be produced to the butyrolactone in high yield stably for a long time the cyclization dehydrogenation catalyst represented by the formula (1) from a crude 1,4-butanediol and gamma under the catalyst-to-butyrolactone relates to a process for preparing: ; [Formula 1] ; CuO (a) M1 (b) M2 (c) SiO ₂ (d) ; wherein, ; M1 is the cobalt (Co), zinc (Zn), chromium (Cr), manganese (Mn), nickel (Ni) and the group consisting of ruthenium (Ru) an oxide of at least one metal selected from; ; M2 is magnesium (Mg), calcium (Ca), barium (Ba), selected from the group consisting of tellurium (Te) and selenium (Se) an oxide of at least one metal that is; ; (a), (b), (c) and (d) as a percentage based on the weight of the catalyst, respectively, 50 to 90%, from 0.1 to 15%, from 0.001 to 5%, and 9-40% range being.