Catalysis over activated zeolites

Claim 2

A process for converting a feedstock comprising an alcohol, ether or mixture thereof to conversion products comprising hydrocarbons which comprises contacting said feedstock at conversion conditions with a catalyst comprising a zeolite composition prepared by a method which comprises impregnating a zeolite having an initial silica-to-alumina mole ratio of 70 or more with an ammoniacal aluminum fluoride solution at a temperature of from about 0° C. to about 100° C., said solution comprising from about 0.1 to about 5 weight percent of an aluminum fluoride in solution with at least one member selected from the group consisting of ammonium hydroxide and ammonia, contacting the impregnated zeolite with a warm aqueous 0.1 to 2 Normal solution of an ammonium salt, and calcining the ammonium salt solution contacting material at a temperature of from about 200° C. to about 600° C.

Claim 3

The process of claim 1 wherein said zeolite has a silica-to-alumina mole ratio greater than about 100.

Claim 4

The process of claim 1 wherein said zeolite has a silica-to-alumina mole ratio greater than about 500.

Claim 5

The process of claim 1 wherein said aluminum fluoride is at least one member selected from the group consisting of AlF 3 , (NH 4 ) 3 AlF 6 , (NH 4 ) 2 AlF 5 and NH 4 AlF 4 .

Claim 6

The process of claim 1 wherein said ammonium salt solution is ammonium nitrate, ammonium sulfate or ammonium chloride.

Claim 7

The process of claim 1 wherein said zeolite has the structure of ZSM-5, ZSM-11, ZSM-5/ZSM-11 intermediate, ZSM-12, ZSM-23, ZSM-35, ZSM-38 or ZSM-48.

Claim 8

The process of claim 6 wherein said zeolite has the structure of ZSM-5 or ZSM-11.

Claim 9

The process of claim 1 wherein said conversion conditions include a temperature of from about 100° C. to about 800° C., a pressure of from about 0.1 atmosphere to about 200 atmospheres, a weight hourly space velocity of from about 0.08 hr -1 to about 2000 hr -1 and a hydrogen/feedstock organic compound mole ratio of from 0 to about 100.

Claim 10

The process of claim 1 wherein conversion conditions include a temperature of from about 275° C. to about 600° C., a pressure of from about 0.5 atmosphere to about 50 atmospheres and a liquid hourly space velocity of from about 0.5 to about 100.

Claim 11

A process for converting a feedstock comprising an alcohol, ether or mixture thereof to conversion products comprising hydrocarbons which comrpises contacting said feedstock at conversion conditions with a catalyst comprising a zeolite composition prepared by a method which comprises impregnating a zeolite having an initial silica-to-alumina mole ratio of 70 or more and the structure of ZSM-5 with an ammoniacal aluminum fluoride solution at a temperature of from about 0° C. to about 100° C., said solution comprising from about 0.1 to about 5 weight percent of an aluminum fluoride in solution with at least one member selected from the group consisting of ammonium hydroxide and ammonia, contacting the impregnated zeolite with a warm aqueous 0.1 to 2 Normal solution of an ammonium salt, and calcining the ammonium salt solution contacted material at a temperature of from about 200° C. to about 600° C.

Claim 12

A process for converting a feedstock comprising an alcohol, ether or mixture thereof to conversion products comprising hydrocarbons which comrpises contacting said feedstock at conversion conditions with a catalyst comprising a zeolite composition prepared by a method which comprises impregnating a zeolite having an initial silica-to-alumina mole ratio of 70 or more and the structure of ZSM-5 with an ammoniacal aluminum fluoride solution at a temperature of from about 0° C. to about 100° C., said solution comprising from about 0.1 to about 5 weight percent of an aluminum fluoride in solution with at least one member selected from the group consisting of ammonium hydroxide and ammonia, contacting the impregnated zeolite with a warm aqueous 0.1 to 2 Normal solution of an ammonium salt, and calcining the ammonium salt solution contacted material at a temperature of from about 200° C. to about 600° C.

Claim 13

The process of claim 10 wherein said zeolite has a silica-to-alumina mole ratio greater than about 100.

Claim 14

The process of claim 10 wherein said zeolite has a silica-to-alumina mole ratio greater than about 500.

Claim 15

The process of claim 10 wherein said aluminum fluoride is at least one member selected from the group consisting of AlF 3 , (NH 4 ) 3 AlF 6 , (NH 4 ) 2 AlF 5 and NH 4 AlF 4 .

Claim 16

The process of claim 10 wherein said ammonium salt solution is ammonium nitrate, ammonium sulfate or ammonium chloride.

Claim 17

The process of claim 10 wherein said conversion conditions include a temperature of from about 100° C. to about 800° C., a pressure of from about 0.1 atmosphere to about 200 atmospheres, a weight hourly space velocity of from about 0.08 hr -1 to about 2000 hr -1 and a hydrogen/feedstock organic compound mole ratio of from 0 to about 100.

Claim 18

The process of claim 10 wherein said conversion conditions include a temperature of from about 275° C. to about 600° C., a pressure of from about 0.5 atmosphere to about 50 atmospheres and a liquid hourly space velocity of from about 0.5 to about 100.