| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_59ee0fd7eb2582a125b4ac467613220d |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B03D3-06 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B03D3-06 |
| filingDate |
1973-05-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1974-09-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_17bb8c4c6ded77ff0d0a8d06c1a58c11 |
| publicationDate |
1974-09-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-3837482-A |
| titleOfInvention |
Process for purifying clay by selective flocculation |
| abstract |
An improved method for purifying kaolin clay containing colored impurities by forming a deflocculated aqueous slip of the impure clay and selectively flocculating the clay phase with an anionic polymeric flocculant, such as partially hydrolyzed polyacrylamide. A suspension of the impure clay is rendered strongly alkaline by addition of a soluble hydroxide compound before adding a strong polyanionic clay dispersant such as sodium silicate or sodium condensed phosphate to deflocculate the suspension. Thereafter the pH of the suspension is reduced to a neutral of mildly alkaline value. This is followed by incorporation of the anionic polymeric flocculant which selectively flocculates the clay, leaving the impurities deflocculated. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5143599-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4909946-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9811993-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6186335-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4690752-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1686104-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5688315-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006131243-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4076548-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5685900-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6383282-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005252834-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006186024-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2005113687-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-4235709-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5603411-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5922207-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2396860-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6041939-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-1114505-C
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5535890-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5938833-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7122080-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6200377-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7393462-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-03024888-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-0170409-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6390301-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2004071989-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6615987-B1 |
| priorityDate |
1973-05-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |