| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6bd0cdbc5c67cf4957ed83c89140748e |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L2224-43
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L2924-01006
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L2924-01004
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L2924-00014
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L2224-45
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L2224-45144
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L2924-01047
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L2924-01205
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L2924-01079 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01L24-43 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B11-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C22B7-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G7-00 |
| filingDate |
1998-02-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9c219e0bf31572133dde23884e292cf7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c420468f905365d69b332e07bf0cefe2 |
| publicationDate |
1999-08-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-H11229053-A |
| titleOfInvention |
Manufacturing method of high purity gold |
| abstract |
(57) [Summary] [Problem] To easily and efficiently remove silver-deposited slime from desilvered precipitate by nitric acid extraction by reduction method. Provided is a method for producing high-purity gold having a purity of 99.999% by weight or more. SOLUTION: By adding nitric acid to a chloroauric acid solution of a desilvered precipitate, gold remaining in the residue is further dissolved to reduce the concentration of free hydrochloric acid, and then the volume of water is 1.5 times or more. , Filtered to remove residue and reduced to recover gold. The amount of nitric acid added is about 0.1 to 0.4 liters of industrial 63% by weight nitric acid per 1 kg of the desilvered precipitate, and the chloroauric acid solution after nitric acid addition is added at 60 ° C to 90 ° C for 1 to 3 hours. It is preferable to hold. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-100939577-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-10310699-B4
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-10310699-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-10310641-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2014080682-A |
| priorityDate |
1998-02-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |