| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c64289aee1b6f1bb759fa6ac1e0c9d5e |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2521-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2531-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2523-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2529-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2521-08 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C11-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C5-226
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C7-163
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C7-04 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C2-28
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C5-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C2-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C2-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C7-163
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C7-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C11-02 |
| filingDate |
2001-08-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2003-10-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c2dbc315fc2f65fce690797d2fc7d20a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4086fd51fdf06bc6a2dfc9f079ecea98
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_af4f02bbee129590739a7757fa50101b
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_adb0f7c74bfba6c1bb52dfbed975fcaf
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9480dd0af2241a1cc4fb3543627443c5 |
| publicationDate |
2003-10-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-6632972-B2 |
| titleOfInvention |
Process for the selective preparation of DIB from an i-butene-containing C4 stream |
| abstract |
The invention relates to a process for preparing diisobutylene (DIB) from an i-butene-containing C<HIL><PDAT>4 </SB><PDAT>raffinate I, in which the C<HIL><PDAT>4 </SB><PDAT>stream is passed through a first hydroisomerization reactor (A) and a fractionation column (B) and is thus largely freed of 1-butene and 2-butene. It is subsequently dimerized over an acidic catalyst installed in a reactive column (E). The feed stream to this reactive column contains not only i-butene but also butanes which make the reaction temperature in the fixed bed controllable by removal of the heat of reaction. In the fractionation column (B), a side stream can be subjected to a further hydroisomerization in a reactor (C).</PTEXT> |
| priorityDate |
2000-08-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |