Carried heteropoly acid catalyst for preparing dimethyl ether by dewatering methanol and its preparing process

Application Number: 00102506
Application Date: 2000.02.17
Publication Number: 1308987
Publication Date: 2001.08.22
Priority Information:
International: B01J32/00;B01J37/02;C07C41/09;C07C43/04
Applicant(s) Name: Dongbei Normal Univ
Inventor(s) Name: Qu Lunyu;Wang Shouguo;Wang Yuanhong
Patent Agency Code: 22202
Patent Agent: liu yanjun
Abstract A carried heteropoly acid catalyst for preparing dimethylether by dewatering methanol contains heteropoly acid (1-50 m%), gamma-Al2O3 (25-98.2 m%), TiO2 (0.1-20 m%) and La2O3 (0.1-5 m%), and is prepared through impregnation of heteropoly acid as active component for 12 hr, drying at 120 deg.c and calcining at 350 deg.C. Its advantages are high conversion up to 85% and high selectivity up to 99.99%.