| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7f9af914ed2fb00cd4f1b8b1a28964e4 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S203-90
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S203-22 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C67-54 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-44
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D3-34
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C57-07
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-54
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D3-00 |
| filingDate |
2000-03-08^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_adb037f25d2e6d5e7430b596a0b7a957
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2a241c0b4ebeee8d4fd87a5c2a7b5a17
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e769949d28de33a91a8bf41df8f16238 |
| publicationDate |
2006-04-29^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
MY-122512-A |
| titleOfInvention |
Process for the purification of (meth) acrylic acid and/or its ester |
| abstract |
IN A PROCESS FOR THE PURIFICATION OF (METH) ACRYLIC ACID AND/OR ITS ESTER USING A DISTILLATION UNIT COMPRISING A DISTILLATION COLUMN (1), A MULTITUBULAR REBOILER (2), AND A PIPE (3,13) CONNECTING THESE ELEMENTS, AN OXYGEN CONTAINING GAS IS SUPPLIED FROM AT LEAST ONE POINT IN REGIONS BETWEEN THE DISTILLATION COLUMN (1) AND AN INLET OF THE MULTITUBULAR REBOILER (2) AND/OR IN REGIONS BETWEEN THE INLET AND AN INLET SIDE TUBE SHEET (5) OF THE MULTITUBULAR REBOILER. THIS PROCESS CAN EFFECTIVELY PREVENT THE FORMATION OF POLYMERIZATION PRODUCTS AND CAN STABLY PURIFY (METH) ACRYLIC ACID AND/OR ITS ESTER OVER A LONG TIME. (FIG.1) |
| priorityDate |
1999-03-09^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |