| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6cfc033f059d282fcd915bc8be2ae53f |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-52 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J35-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B63-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07B61-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-235
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B31-08
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J21-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C51-47
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C59-06 |
| filingDate |
1995-05-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_519290995a1520c401e19b3e123aba89
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_383ec5dad668724f5558960e8efe6b39
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2f9928448b66e44f5b0bfef508c80346
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4dce49408ef8ca6ee00246871ca9a822
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d49e6eccefefb0b747b741107ad8ec87
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_265f89e8a482ebee621775df6925bd6b |
| publicationDate |
1996-12-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-H08319253-A |
| titleOfInvention |
Method for producing glycolic acid aqueous solution |
| abstract |
(57) [Summary] [Objective] To provide a method for directly producing free and uncolored glycolic acid by a simple method using glyoxal as a starting material. [Structure] An aqueous solution of glyoxal having a concentration of 85% by weight or less is heated to 50 ° C. or more in the presence or absence of a catalyst, and the obtained reaction solution containing glycolic acid is converted into an acidic solution having a pH of 2 or less. The solid component present in the acidic solution was adjusted and filtered to remove the obtained solid component, and the obtained filtrate and porous body having a specific surface area of 500 m 2 / g or more and an average pore diameter of 200 Å or less were used. A method for producing an aqueous glycolic acid solution having a Gardner number of 3 or less, which comprises contacting at a temperature of 0 ° C or less. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2006052199-A |
| priorityDate |
1995-05-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |