http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-379313-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_299622ca92c3f4e076ae61966150b118 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_73ee0bacab5a7576a6a3244747f6ea99 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B17-0232 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B17-02 |
| filingDate | 1931-05-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1932-08-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-379313-A |
| titleOfInvention | Improvements in or relating to the purification of sulphur |
| abstract | <PICT:0379313/III/1> Arsenic free sulphur is obtained by digesting the crude sulphur, preferably in the liquid form, with a solution of ammonia or ammonium sulphide or carbonate. Arsenic sulphide can be recovered from the liquor by treatment with an acid and ammonia obtained by adding lime &c. and distilling. In the apparatus shown, molten sulphur at 120-130 DEG C. is forced by a pump B against a pressure of about 40 pounds to the square inch into a cylindrical washer C divided into compartments by apertured partitions K. A shaft D carries stirring blades I, one being provided in each compartment except the first and the last. A 1 per cent solution of ammonia &c. is forced in under pressure by a pump H at the other end of the washer, it being heated to 130 DEG C. by steam coils J. The purified sulphur leaves by a pipe F and the ammoniacal liquor by a pipe G, the sulphur being dried by heat which removes the last traces of ammonia &c. |
| priorityDate | 1931-05-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 23.