| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fbbda874c6a301bacb4fa4fb19aeed7f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_5940d30ca5660f4ca53b08a20c5c6de6
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4d4584d704f13607b3be435e5874c259
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_33c922e05f6133b7d72dbb849d77487d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a7712f2ea031c9c02d1418a083b7974d |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J19-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-252
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-16
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J15-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C57-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-009
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C51-44 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C57-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B33-00 |
| filingDate |
2013-07-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2014-05-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bd7ebe6f641574bf365ff07eb5b69dc7
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_39a56112b7ede3549ecfe26d2461a17e
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_16a3edb59b1d45166a21052582340f06
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c843c34c30c54e5c4483efc80fea83ef |
| publicationDate |
2014-05-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-8716525-B2 |
| titleOfInvention |
Process for continuous recovering (meth) acrylic acid and apparatus for the process |
| abstract |
The present invention relates to a method and apparatus for continuous recovery of (meth)acrylic acid, and more specifically to a method of continuous recovery of (meth)acrylic acid, including: conducting gas phase oxidation of at least one compound selected from the group consisting of propane, propylene, butane, i-butylene, t-butylene, and (meth)acrolein in the presence of a catalyst to obtain a mixed gas containing (meth)acrylic acid; quenching the (meth)acrylic acid-containing mixed gas to remove high boiling point by-products in the (meth)acrylic acid-containing mixed gas; contacting the high boiling point by-product-free (meth)acrylic acid-containing mixed gas with water or an aqueous solution to obtain an aqueous solution containing (meth)acrylic acid; and purifying the aqueous solution containing (meth)acrylic acid to obtain (meth)acrylic acid. n The continuous recovery method of (meth)acrylic acid according to the presentA invention may significantly reduce energy consumption and continuously recover high purity (meth)acrylic acid with excellent production efficiency compared to the previous recovery methods. |
| priorityDate |
2011-03-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |