| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_1374dd16777534b65ad4422333245af8 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C63-26
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C27-02 |
| filingDate |
2001-10-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fd1ae1430a618bec63460bef23ce5396
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e86e951318455c1c2ee07ffe2a3ca390
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0bfb7ffa6a5504874ddafa165ee7fdbf |
| publicationDate |
2003-05-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
JP-2003128598-A |
| titleOfInvention |
Method for controlling particle size of terephthalic acid |
| abstract |
(57) [Problem] To easily control the particle size of terephthalic acid by a hydrolysis method of dimethyl terephthalate without employing a pulverizing method or providing a crystallization tank in the process of producing particles. Suggest ways to do it. SOLUTION: When dimethyl terephthalate is hydrolyzed, the hydrolysis reaction temperature, the weight ratio of water / dimethyl terephthalate in the reaction system and the amount of terephthalic acid impurities are controlled to control the average particle diameter of terephthalic acid generated 50μ m or more, the variation is controlled within 10%. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-WO2005012218-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2005012218-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2022181205-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-100393688-C
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2008056801-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11667751-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-7291268-B2 |
| priorityDate |
2001-10-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |