| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8e43b4ca6b41ce9f54c9a895d474c81a |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-584
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C57-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C47-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2523-00 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-35
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C47-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-887
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-8872
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-8876
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J38-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J35-023
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-235
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-252
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-25
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C27-14 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C47-22
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C57-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J23-887
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J38-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-35
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-235 |
| filingDate |
2017-03-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2020-12-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9ce4517f3c3af5477464dba155cb49b1
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_279264fbc9957ea96bb2d5e46c7f676f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_57b6d0b7d77a55b83ff51aaefc9a71c3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_38ff8114598df8f846ffa594b9a7dbc0 |
| publicationDate |
2020-12-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-10851040-B2 |
| titleOfInvention |
Restarting method |
| abstract |
A method for producing at least one oxidation product selected from the group consisting of acrolein and acrylic acid is provided. This method can alleviate concerns about deterioration of a gas-phase oxidation catalyst and reaction runaway in a restart period after a shutdown, and can allow the reaction to proceed in a stable state. Using a fixed-bed reactor filled with a gas-phase oxidation catalyst, at least one source gas selected from the group consisting of propylene and acrolein is subjected to a gas-phase contact oxidation reaction while a heating medium is caused to contact with or circulate through the fixed-bed reactor and thereby to heat the fixed-bed reactor. The temperature of the heating medium when the load is maximum in the restart period after the shutdown is controlled to be lower than the temperature of the heating medium when the load is maximum in an initial start-up period. |
| priorityDate |
2016-03-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |