Claims
- 1. A method of removing organic species from an organic nitrogen cation-containing zeolite to improve the dispersive properties thereof, in turn, resulting in catalysts of enhanced catalytic and physical properties which comprises contacting said zeolite with a solution comprising sodium hypochloride, said contact being conducted at temperatures below 100.degree. F.
- 2. A method according to claim 1 wherein said cation consists of a primary alkylamine having 2 to 9 combinations.
- 3. A method according to claim 2 wherein said cation is n-propylamine, isopropylamine, butylamine, ethylamine, n-pentylamine, n-hexylamine, n-heptylamine, n-octylamine or n-nonylamine.
- 4. A method according to claim 1 wherein said cation consists of an alkyldiamine selected from the group consisting of pentanediamine, hexanediamine and combinations thereof.
- 5. A method according to claim 4 wherein said alkyldiamine is 1.6-hexanediamine or 1,5-pentanediamine.
- 6. A method according to claim 1 wherein said cation consists of a 2-(hydroxyalkyl)trialkylammonium compound wherein alkyl is methyl, ethyl or a combination of the two.
- 7. A method according to claim 6 wherein said cation is 2-(hydroxyethyl)trimethylammonium chloride.
- 8. A method according to claim 1 wherein said cation is ethylenediamine.
- 9. A method according to claim 1 wherein said cation is pyrrolidine.
- 10. A method according to claim 1 wherein said cation is monoalkylamine in conjunction with an alkyl halide.
- 11. A method according to claim 9 wherein said alkyl halide is n-propylbromide.
- 12. A method according to claim 1 wherein said zeolite is ZSM-5.
- 13. A method according to claim 1 wherein said zeolite is low-sodium ZSM-5.
- 14. A method according to claim 1 wherein said zeolite is ZSM-11.
- 15. A method according to claim 1 wherein said zeolite is ZSM-12.
- 16. A method according to claim 1 wherein said zeolite is ZSM-21.
- 17. A method according to claim 1 wherein said zeolite is ZSM-23.
- 18. A method according to claim 1 wherein said zeolite is ZSM-35.
- 19. A method according to claim 1 wherein said zeolite is ZSM-38.
- 20. A method according to claim 1 wherein said temperatures are between about 50.degree. and 100.degree. F.
- 21. A method of removing organic species from an organic cation-containing low-sodium ZSM-5 type zeolite said cation comprising a monoalkylamine to improve the dispersive properties thereof, in turn, resulting in catalysts of enhanced catalytic and physical properties which comprises contacting said low-sodium zeolite with a solution of sodium hypochlorite, said contact being conducted at temperatures below 100.degree. F.
- 22. A method according to claim 21 wherein said monoalkylamine is normal propylamine.
- 23. A method according to claim 21 wherein said monoalkylamine is in conjunction with an alkyl halide.
- 24. A method according to claim 23 wherein said alkyl halide is normal propylbromide.
CROSS REFERENCE TO RELATED APPLICATION
This is a continuation-in-part of application Ser. No. 222,848, filed Jan. 6, 1981, now U.S. Pat. No. 4,335,020.
US Referenced Citations (3)
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
222848 |
Jan 1981 |
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