http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-950003245-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C31-20 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C31-20 |
| filingDate | 1993-07-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1995-02-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-950003245-A |
| titleOfInvention | Gas phase one-step preparation of 1,4-butanediol and γ-butyrolactone |
| abstract | The present invention relates to a method for simultaneously producing 1,4-butanediol and γ-butyrolactone by using a high-safety catalyst and in one step.n n n Maleic acid dialkyls and succinic acid dialkyls were used as feedstocks and carrier copper, and in the gas phase, the temperature was 160-250 ° C., atmospheric pressure 20-70 kg / cm 2, liquid supply rate 0.05-3hr −1 , hydrogen and esters. Under the condition of the molar ratio between and 20 to 400, one-step hydrogenation cracking reaction is performed to simultaneously produce 1,4-butanediol and γ-butyrolactone. Suitable catalyst H 0 is a copper catalyst with an oxide or mixed oxide having a value between +3 and -3, with a copper content of 20 to 80% by weight of the total weight. Suitable carriers are silicon dioxide, titanium dioxide, zirconium dioxide, or a mixture of two or more of these. Alkali metal, alkaline earth, zinc nickel, zirconium, pallanium or manganese or the like is added to the copper catalyst to improve the properties, thereby improving the selectivity of 1,4-butanediol and γ-butyrolactone. |
| priorityDate | 1993-07-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 62.