The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 29, 2017
Filed:
Sep. 26, 2012
Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning, CN;
Peng Tian, Liaoning, CN;
Zhongmin Liu, Liaoning, CN;
Dong Fan, Liaoning, CN;
Xiong Su, Liaoning, CN;
Ying Zhang, Liaoning, CN;
Yue Yang, Liaoning, CN;
DALIAN INSTITUTE OF CHEMICAL PHYSICS, CHINESE ACADEMY OF SCIENCES, Dalian, Liaoning, CN;
Abstract
A SAPO-34 molecular sieve and method for preparing the same, whose chemical composition in the anhydrous state is expressed as: mSDA.(SiAlP)O, wherein m is 0.08-0.3, x is 0.01-0.60, y is 0.2-0.60, z is 0.2-0.60, and x+y+z=1. The template agent SDA is in micropores of the molecular sieve. SDA is an organic amine with the structural formula (CH)NRN(CH), wherein R is a saturated straight-chain or branched-chain alkylene group with having from 2-5 carbon atoms. There is a slight Si enrichment phenomenon on the crystal surface of the molecular sieve crystal, and the ratio of the surface Si content to the bulk Si content of the crystal ranges from 1.50-1.01. Said SAPO-34 molecular sieve, after being calcined at a temperature range from 400-700° C. in air, can be used as a gas adsorbent and catalyst for an acid-catalyzed reaction or oxygenate to olefin reaction.