Patent ID: 6383970
Filing Date: 2002-05-07
Classification: B01J,C07C

Abstract:
A solid acid catalyst having the following structure (A), structure (B) and metal atom (C);Structure (A): a structure in which a hydrogen atom is eliminated from at least one of OH groups contained in an inorganic phosphorus acid; Structure (B): a structure in which a hydrogen atom is eliminated from at least one of OH groups contained in an organic phosphorus acid represented by the formula (1) or (2): wherein each of â€”R1 and â€”R2 is selected from â€”R, â€”OR, â€”OH and â€”H in which at least one of â€”R1 and â€”R2 is â€”R or â€”OR, given that â€”R is an organic group having 1 to 22 carbon atoms; Metal atom (C): at least one atom selected from aluminum, gallium and iron.