http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1019482-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c7ad58d3c0b071069a8ee0cb8c8ba2e8 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08G64-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08B3-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08C2-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08C19-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C08J3-14 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08G64-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08C19-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08B3-22 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08C2-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C08J3-14 |
| filingDate | 1963-07-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1966-02-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1019482-A |
| titleOfInvention | Process for the evaporation of solutions of synthetic resins in organic solvents |
| abstract | Organic solvent is evaporated from a solution of a synthetic resin in the solvent by mixing the solution with water and an amount of steam which is at least sufficient to evaporate all the solvent, and introducing the mixture solution, water and steam into a pipe at such a rate that the flow conditions, at the inlet end of the pipe, correspond to a Reynolds number of at least 5000, preferably about 20,000, and the average residence time of the mixture in the pipe amounts to not less than 5 x 10-2 seconds. A slurry in water of small solid particles or fibres of resin is obtained, which do not adhere to the walls of the tube. A device can be connected to the outlet end of the pipe in order to separate the solvent vapours, resin particles and water. In an example, a mixture of water and a solution bisphenol polycarbonate in methylene chloride is sprayed from a nozzle into a pipe 23 cm. long, the diameter of the first 5 cm. of the pipe being 7,2 mm., and the remainder of the pipe having a diameter of 10,5 mm. The tip of the nozzle is 0,7 cm. away from the mouth of the pipe; and steam is passed into the intermediate space between the nozzle and the pipe-mouth. A mixture of sand-like polycarbonate, water, and methylene chloride vapour discharges from the end of the pipe. The Reynolds number in the pipe section of 7,2 mm. diameter is 21,000; and the residence-time of the mixture in the pipe is 9,3 x 10-2 seconds. Other examples relate to the separation of chlorinated rubber from its solution in carbon tetrachloride, and the separation of cellulose acetate from its solution in acetic acid and methylene chloride. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3512570-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3750736-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-3930931-A |
| priorityDate | 1962-08-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 31.