IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
|
| 국제특허분류(IPC7판) |
|
| 출원번호 |
US-0515184
(1995-08-11)
|
|
발명자
/ 주소 |
- Ojo Adeola F. (Chatham NJ) Fitch Frank R. (Bedminister NJ) Bulow Martin (Basking Ridge NJ)
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| 출원인 / 주소 |
- The BOC Group, Inc. (New Providence NJ 02)
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| 인용정보 |
피인용 횟수 :
20 인용 특허 :
14 |
초록
▼
Chabazite, offretite, erionite, levyne, mordenite, gmelinite, zeolite A, zeolite T, EMC-2, ZSM-3, ZSM-18, ZK-5, zeolite L, and beta zeolite whose exchangeable cations are composed of 95 to 50% lithium ions, 4 to 50% of one or more of aluminum, cerium, lanthanum and mixed lanthanides and 0 to 15% of
Chabazite, offretite, erionite, levyne, mordenite, gmelinite, zeolite A, zeolite T, EMC-2, ZSM-3, ZSM-18, ZK-5, zeolite L, and beta zeolite whose exchangeable cations are composed of 95 to 50% lithium ions, 4 to 50% of one or more of aluminum, cerium, lanthanum and mixed lanthanides and 0 to 15% of other ions are prepared by ion-exchanging the base zeolite with water-soluble trivalent ion salts and with water soluble lithium salts. The zeolites preferentially adsorb nitrogen from gas mixtures.
대표청구항
▼
A method of separating nitrogen from a gas mixture comprising passing said gas mixture through at least one adsorption zone containing an adsorbent selected from chabazite, offretite, erionite, levyne, mordenite, gmelinite, zeolite A, zeolite T, EMC-2, ZSM 3, ZSM-18, ZK-5, zeolite L, beta zeolite, a
A method of separating nitrogen from a gas mixture comprising passing said gas mixture through at least one adsorption zone containing an adsorbent selected from chabazite, offretite, erionite, levyne, mordenite, gmelinite, zeolite A, zeolite T, EMC-2, ZSM 3, ZSM-18, ZK-5, zeolite L, beta zeolite, and mixtures of these whose cations comprise about 50 to about 95% lithium, about 4 to about 50% trivalent ions selected from aluminum, scandium, gallium, iron (III), chromium (III), indium, yttrium, single lanthanides, mixtures of two or more lanthanides, and mixtures of these, and 0 to about 15% of residual exchangeable ions selected from sodium, potassium, ammonium, calcium, strontium, magnesium, barium, zinc, copper II and mixtures of these, thereby preferentially adsorbing nitrogen from said gas mixture.
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