| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5423f1ced75d7fb71b03cac90433e0d3 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S423-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S423-21 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09D7-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C11D3-128
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B33-2823
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H19-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A01K1-015
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/D21H17-68 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C11D3-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A01K1-015
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21H17-68
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/D21H19-40
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09D7-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61Q11-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C11D3-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61K8-26 |
| filingDate |
1980-11-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1983-11-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f3baa616ef6167cc98dbf1e6e62c0c6a |
| publicationDate |
1983-11-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4416805-A |
| titleOfInvention |
Synthesis of zeolites of small and uniform size having a high magnesium exchange capacity |
| abstract |
Zeolites of small and uniform size are formed having high magnesium exchange capacities. Zeolite A is disclosed having an average particle size less than 1.7 microns, a calcium carbonate exchange capacity of more than 230 mg calcium carbonate per gram zeolite and a magnesium exchange capacity of more than 140 mg magnesium carbonate per gram zeolite. This zeolite A is produced from a reaction mixture having a water to sodium oxide molar ratio of less than 35:1, and a sodium oxide to silica molar ratio of between 1:1 and 4:1, wherein the silica to alumina molar ratio is greater than 3:1 when the sodium oxide to silica molar ratio is less than 4:3 and the sodium oxide to alumina molar ratio is greater than 4:1 when the sodium oxide to silica molar ratio is greater than 4:3. Zeolite X is disclosed having an average particle size less than 2.2 microns, a calcium carbonate exchange capacity of more than 205 mg calcium carbonate per gram zeolite, and a magnesium exchange capacity of more than 130 mg magnesium carbonate per gram zeolite. This zeolite X is produced from a reaction mixture having a silicate alumina molar ratio greater than 5:1. A combination of zerolite A and zeolite X can be produced from the same reaction mixture. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9203387-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0509164-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8002963-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5645811-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2008290546-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5186746-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5882625-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5183650-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2008289950-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4822492-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4539191-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5223235-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4584330-A |
| priorityDate |
1978-12-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |