http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-H02247148-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0efa077d881a96aeb1e29b21ef1bbb58 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-002 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-786 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D61-243 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D61-445 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C47-127 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D61-44 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D61-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-80 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-78 |
| filingDate | 1990-01-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cbe7d5ed5052fca39f0cc1caf3fbea23 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9c4333d71c790b66e93c09bc9510cb54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f5f9f4b35bc183d933c47b5e895c6f39 |
| publicationDate | 1990-10-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-H02247148-A |
| titleOfInvention | Purification of aqueous glyoxal solution |
| abstract | PURPOSE: To purify an aq. alyoxal solns. contg. org. acids by means of a membrane cell comprising at least two compartments separated by an ion exchange membrane and by passing the soln. through one of the compartments and passing an aq. soln. of a base through a neighboring compartment. n CONSTITUTION: The purification is conducted by passing an aq. crude glyoxal soln. through a compartment K 1 in a dialysis cell or an electrodialysis cell having an arrangement of formula I (wherein M 1 is an anion exchange membrane; each of K 1 and K 2 is a compartment, (m) is 1 to 800) and passing an aq. soln. of a base (e.g. an aq. soln. of an alkali metal carbonate) through a compartment K 2 . The purification can be conducted by passing an aq. crude glyoxal soln. through the compartment K 1 in a electrodialysis cell having an arrangement of formula II (wherein M 2 is a dipolar membrane or a cation exchange membrane), passing an aq. base through the compartment K 2 and passing an aq. electrolyte through a compartment K 3 . A purified soln. in which an acid value is highly conc. to <1 can be obtd. from an aq. crude soln. having the acid value of 5 to 200 according to the above method. n COPYRIGHT: (C)1990,JPO |
| priorityDate | 1989-01-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID419522456 http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID7860 |
Total number of triples: 26.