http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-897670-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9e5302e08e56037ff7bc5c9b6fcc29f9 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B33-2869 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B39-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B39-46 |
| filingDate | 1958-12-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1962-05-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-897670-A |
| titleOfInvention | Crystalline zeolite |
| abstract | A synthetic crystalline zeolite molecular sieve, designated zeolite Q, of general formula: 0,95\sB0,05M2/nO:Al2O3: 2,2\sB0,5SiO2: O-5H2O, where M is a Group I or II metal of valency n, or a hydrogen or ammonium ion, and having a specified characteristic X-ray diffraction pattern, is prepared, initially in the potassium form, from an aqueous reactant solution having the following oxide mole ratios: K2O/SiO2 of 4, SiO2/Al2O3 of 4, H2O/K2O of 12 by maintaining such solution at 25 to 50 DEG C. until the zeolite crystallizes. The potassium form may be connected to the other forms, e.g. the Na, Li, Ba, Ca, Mg, Sr, or Zn form by ion exchange. Suitable sources of silica for the initial reactant solution are silica gel, silica acid and potassium sibiate: sources of alumina may be activated, alpha or gamma alumina, alumina trihydrate or hydroxide or potassium aluminate. Potassium hydroxide may supply the potassium ion. The formed zeolite is preferably washed with water until the wash water has a pH of 9 to 12. The zeolite crystals are activated by heating to about 130 DEG C. optionally under reduced pressure, or by applying vacuum at room temperature. The so-activated zeolite may be employed as an adsorbent for water, carbon dioxide, ammonia and sulphur dioxide whereby these components may be separated from nitrogen, oxygen, argon, ethane, ethylene or propylene. The zeolite may be pelletted with clay. |
| priorityDate | 1957-12-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 46.