Transalkylation catalyst and its prepn.

Application Number: 00107413
Application Date: 2000.05.12
Publication Number: 1323769
Publication Date: 2001.11.28
Priority Information:
International: B01J29/08;C07C4/00;C07C6/00
Applicant(s) Name: China Petrochemical Group Corp.
Inventor(s) Name: Zhang Fengmei;Shu Xingtian;He Mingyuan
Patent Agency Code: 72001
Patent Agent: xu shu
Abstract An transalkylation catalyst used for converting polyalkylbenzene to alkylbenzene contains 40-90 wt.% Y type molecular sieve and 10-60 wt.% inorganic oxide carrier, it is characterized in that said Y type molecular sieve is obtained through at least one step of under the ammonia gas atmosphere are room-temp. to 650 deg.C to treat 0.5-4 hrs. and optimize under 150-600 deg.C to treat 1-3 hrs. The invented catalyst possesses higher transalkylation activity and activity stability.