http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3850930-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_429ce260e85e7c4a3976dcda3803fa68 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D473-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D473-04 |
| filingDate | 1970-10-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 1974-11-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e444af751b1be49695645faa1bd82103 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_02a6642cd4707e6e52215cc34c44965e |
| publicationDate | 1974-11-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-3850930-A |
| titleOfInvention | Method of obtaining uric acid from natural products |
| abstract | 1. THE METHOD OF OBTAINING URIC ACID FROM A WASTE MATERIAL CONTAINING URIC ACID COMPRISING THE STEPS OF: COLLECTING SUITABLE URIC ACID BEARING WASTE MATERIAL PROMPTLY AFTER IT HAS BEEN PRODUCED; DRYING SAID PROMPTLY COLLECTED WASTE MATERIAL WITHIN A PERIOD OF EIGHT DAYS AFTER IT HAS BEEN PRODUCED AT A TEMPERATURE OF FROM BETWEEN 140*F. TO 390*F. FOR A PERIOD OF TIME UNTIL THE MOISTURE CONTENT IS REDUCED TO NO MORE THAN 15% WEIGHT OF WATER; MILLING AND COLLECTING A FRACTION OF AT LEAST -80 MESH OF THE MILLED AND DRIED WASTE MATERIAL; EXTRACTING SAID FRACTION MATERIAL A FIRST TIME WITH AN ALKALINE-BRINE SOLUTION HAVING A PH OF GREATER THAN 9; ACIDIFYING THE MOTHER LIQUOR OF SAID FIRST EXTRACTED MATERIAL WITH AN ACID IN A SOLUTION HAVING A PH OF FROM 1 TO 5.5; EXTRACTING THE PRECIPITATED MATERIAL FROM THE ACIDIFIED SOLUTION A SECOND TIME BY DISSOLVING SAID PRECIPITATE IN AN ALKALINE-BRINE SOLUTION HAVING A PH OF GREATER THE 9; AND ACIDIFYING SAID SECOND EXTRACTED MATERIAL TO A PH OF FROM 1 TO 5.5 THEREBY PRECIPITATING THE PURE URIC ACID SO PRODUCED FROM THE SUPERNATANT LIQUID. |
| priorityDate | 1970-10-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 47.