http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2443675-C1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_0d059a174f427ad0af651d5e1fac00a2 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J14-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C69-54 |
| filingDate | 2010-08-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2012-02-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_88a14ed1005169c55aff47d64ee120ae |
| publicationDate | 2012-02-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2443675-C1 |
| titleOfInvention | Method of neutralising acidic impurities during synthesis of acrylates and apparatus for realising said method |
| abstract | FIELD: chemistry. ^ SUBSTANCE: in the method of neutralising acidic impurities during synthesis of acrylates, the neutralising agent used is ammonia solution with concentration of not less than 0.01% in amount which ensures pH of the mixture of 5.5-6.7, said mixture being formed after mixing the neutralising agent with raw acrylate. Said method involves preparation of a neutralising agent, mixing the prepared neutralising agent and raw acrylate followed by phase separation of the mixture into a top organic layer of raw acrylate and a bottom aqueous layer of spent neutralising agent. Copper sulphate is also added to the ammonia solution in amount of 0.6-0.12 wt %. When preparing the neutralising agent, the solution is mixed through circulation thereof. Ammonia solution concentration of 1-2% if optimum for industrial engineering. The apparatus has containers connected by pipes for preparing aqueous solution for the neutralising agent, a circulation pump, an overhead tank, a pump, a mixer, a phase separator, as well as an overhead tank for raw acrylate connected with the pump. The apparatus also has a container for ammonia solution and an additional pump fitted at the inlet of the container for preparing ammonia solution, and a pH metre fitted at the outlet of the mixer, where the mixer is in form of a turbulator. The turbulator is a metal pipe into which a disc with holes is fitted perpendicular the longitudinal axis, said disc being made from fluoroplastic or steel. ^ EFFECT: obtaining a high-purity end product, characterised by low content of acidic impurities, achieved owing to use of structural components and process operations which enable addition of a neutralising agent according to a defined scheme. ^ 5 cl, 2 dwg, 1 tbl, 12 ex |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104496807-A |
| priorityDate | 2010-08-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 42.