| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2f110a3bc170ae08a1ca696fe0001542
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2038f296f33227684ab17846ab4aeda4 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2219-00155
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2219-182
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01F2025-911
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01F2025-91
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01F27-80
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-582
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02A50-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2219-185 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C303-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07B45-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B17-806
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D53-1493
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C303-06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D53-1481 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01F5-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01F7-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01F7-16 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C303-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B17-80
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B45-02 |
| filingDate |
1965-01-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
1968-03-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
GB-1107319-A |
| titleOfInvention |
Gas absorption process |
| abstract |
In a process for absorbing sulphur trioxide in concentrated sulphuric acid, the gas and liquid are fed downwardly between cooled concentric cylinders 4 and 5 spaced apart between 1/8 and 1/2 an inch and the resulting product is rapidly cooled after it has left the space between the cylinders. Rapid cooling may be effected by passage through a large heat exchanger or as shown by mixing with cooled product introduced at 6 from a channel 9. The sulphur trioxide, preferably diluted with air so that the mixture contains e.g. 4% by volume sulphur trioxide is passed upwardly through the inner cylinder 4 and 98% sulphuric acid is fed to the absorption space through lines 1 and 2. The temperature in the absorption space is controlled at between 80-100 DEG F. <PICT:1107319/C1/1> by returning a portion of the rapidly cooled product to the top of the absorber. The cylinders 4 and 5 are double-walled and cooling liquid is circulated therethrough. |
| priorityDate |
1964-10-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |