http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H0753424-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6c8d4dc7bd1a30d8fda907fceaeb4e69 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-52 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C31-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C29-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00 |
| filingDate | 1993-08-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8890917e9b66e27395653e5bfee489a8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a670a5832fa49f6763e02f3e42068c09 |
| publicationDate | 1995-02-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H0753424-A |
| titleOfInvention | Method for producing 1,4-butanediol and tetrahydrofuran |
| abstract | (57) [Summary] (Modified) [Structure] In producing 1,4-butanediol and tetrahydrofuran by reacting acetic acid ester of 1,4-butanediol with water in the presence of a solid acid catalyst, (A) Raw material acetate ester, water, and the distillate circulated from step (g) are supplied to the first reaction zone composed of a solid acid catalyst to cause a hydrolysis reaction, and (b) are supplied to the first distillation column. Then, the high-boiling substance is discharged, (c) the bottom liquid is supplied to the second distillation column to discharge 1,4-butanediol, and the acetic acid ester of 1,4-butanediol is distilled off. (D) This distillate was supplied to the second reaction zone consisting of a solid acid catalyst to carry out a deacetic acid cyclization reaction, and (e) tetrahydrofuran, water and acetic acid were distilled off in a third distillation column to obtain a high boiling substance. A bottom is discharged, (f) the bottom liquid is divided into two parts, a part of which is circulated in the second reaction zone, and (g) the rest is supplied to the fourth distillation column and circulated. [Effects] According to this method, high-quality 1,4-butanediol and tetrahydrofuran can be co-produced extremely efficiently and can be produced at any ratio. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6204399-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114751877-A |
| priorityDate | 1993-08-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 54.