US PATENT SUBCLASS 502 / 79-- .~ Faujasite type (e.g., X or Y, etc.)

US PATENT SUBCLASS 502 / 79
.~ Faujasite type (e.g., X or Y, etc.)

Current as of: June, 1999
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502 /	HD	CATALYST, SOLID SORBENT, OR SUPPORT THEREFOR: PRODUCT OR PROCESS OF MAKING

60	DF	ZEOLITE OR CLAY, INCLUDING GALLIUM ANALOGS {13}
79		.~ Faujasite type (e.g., X or Y, etc.)

DEFINITION

Classification: 502/79

Faujasite type (e.g., X or Y, etc.):

(under subclass 60) Composition in which a zeolite is characterized by having a silica to alumina ratio of about 2.5 to about 7 and a very open framework, comprising truncated octahedra (B cages) characteristic of sodalite linked by hexagonal prisms forming super cages, and a pore size of approximately 60 to 15 deg. A.

(1) Note. The type of zeolite is generally determined by X-ray diffraction and the patterns may be found in the literature cited in the notes to subclass 60. Faujasite type includes X, Y, Z 14 and H S.