http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DD-238233-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_394e1eac0f43a87fa452f9d345ba37b0 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D317-20 |
| filingDate | 1985-06-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dd8cac046b0f6bc7f7921222ffee0391 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0dcb53199ca163cdea2b18e0ba939a3a |
| publicationDate | 1986-08-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | DD-238233-A1 |
| titleOfInvention | PROCESS FOR PREPARING 2,2-DIMETHYL-4-METHYLOL-1,3-DIOXOLANE |
| abstract | 2,2-dimethyl-4-methylol-1,3-dioxolane is used as a component of skin care agents, as an antioxidant for synthetic lubricants, as a synthesis component for pharmaceuticals, insecticides, two-stage polymerizing systems and the like. a. versatile needed. It is the object of the invention to carry out the preparation of 2,2-dimethyl-4-methylol-1,3-dioxolane with the lowest possible technical, energetic and economic expenditure as well as largely avoiding waste products. For this purpose, the production is carried out in a rapid reaction and using only such excipients, which need not be regenerated or can be easily regenerated. According to the invention, however, acetone and glycerol are mixed in any ratio with 2,2-dimethyl-4-methylol-1,3-dioxolane or with already reacted reaction mixture in such a ratio as to ensure a homogeneous system, preferably the homogeneous mixture at 35-55 ° C an acidic, fixed poroeses catalyst bed from an acidic organic ion exchanger or transferred to the H-form zeolite passed a few minutes and the reaction mixture separated by distillation. The conversion is approximately 45% in stoichiometric use of acetone and glycerol. Restaceton and residual glycerine can be recycled to the process. |
| priorityDate | 1985-06-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 21.