http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2722803-C2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8e0bf0928b608797b70bbc2b91c7e52e |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C253-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C253-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C227-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C229-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C227-18 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C229-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C255-25 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C11D3-33 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C11D3-33 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C229-24 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C229-16 |
| filingDate | 2016-03-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-06-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a256b248059b818818d7201e780b7f9b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5ba9f50f5320f2a0264adca976676f03 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_27258ff8f603a86bc29f615dde1852f1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d5005a2e2cbdc150fb949184ddd4fb29 |
| publicationDate | 2020-06-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2722803-C2 |
| titleOfInvention | Method of producing a mixture of an alkali metal salt of methylglycine diacetic acid and an alkali metal salt of glutamic diacetic acid, a mixture of l- and d-enantiomers of said salts and an aqueous solution of said mixture for producing detergent compositions for washing and cleaning |
| abstract | FIELD: chemistry. n SUBSTANCE: invention relates to a method of producing a mixture of L- and D-enantiomers of mono-, di- or trisodium alkali metal methylglycine diacetic acid (MGDA) or mixtures thereof, containing preferentially corresponding L-isomer with enantiomeric excess (ei) in range from 25 to 96 % and L- and D-enantiomers of mono-, di-, tri- or tetrasoles of alkaline metal of glutamic diacetic acid (GLDA) or their mixtures. Method comprises dissolving alanine in its water in its L-enantiomer form or its corresponding monosali alkali metal or mixtures thereof and glutamic acid in form of L- or D-enantiomer or its corresponding mono- or disulant of alkali metal or mixtures thereof, where molar ratio of alanine to glutamic acid ranges from 4:6 to 6:4, conversion of the obtained mixture with formaldehyde and cyanic acid or cyanide of an alkali metal to corresponding dinitriles, saponification of the obtained dinitriles. Invention also relates to a mixture of L- and D-enantiomers of mono-, di- or trisodium alkali metal MGDA or mixtures thereof, containing predominantly corresponding L-isomer with enantiomeric excess (ei) in range of 25 to 96 %, and L- and D-enantiomers of alkali metal mono-, di-, tri- or tetrasoles of GLDA or mixtures thereof, wherein the molar ratio of the MGDA salt to the GLDA salt ranges from 4:6 to 6:4. Said mixture and its aqueous solution, having a solids content in range of 40 to 70 wt %, are used to produce detergent compositions for washing and detergent compositions for cleaning. n EFFECT: mixtures and their solutions exhibit low tendency to coloring, yellowing during storage, demonstrate improved behavior to bleaching agents and to strong bases. n 12 cl, 5 tbl, 9 ex |
| priorityDate | 2015-03-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 393.