http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-1371796-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a918f321eec49142fd07a00fde94f2e1 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2531-845 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2231-52 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2531-0208 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-584 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-28 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2531-96 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J2231-321 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C45-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01G51-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J31-403 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01G51-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J31-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C45-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J38-00 |
| filingDate | 1971-09-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1974-10-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-1371796-A |
| titleOfInvention | Process for recovering cobalt carbonyl |
| abstract | 1371796 Cobalt carbonyl DAICEL Ltd 13 Sept 1971 [14 Sept 1970] 42558/71 Heading C1A [Also in Division C2] Cobalt is recovered as dicobalt carbonyl from organic liquids which are the products of an "oxo", hydroesterification, hydrogenation or isomerization reaction and which contain cobalt carbonyl as catalyst by treating such liquids with a metallic extracting agent (as defined) in the presence of water, carbon monoxide and hydrogen, allowing the mixture to stand and separating the aqueous and organic phases to obtain an aqueous solution of a metal salt of a carbonyl cobaltate, then mixing said aqueous solution with (a) a mineral acid or strong organic acid having a pKa below 2À5, in an amount sufficient to decompose said salt and with (b) a water immiscible solvent inert to the carbonyl. product and being a saturated hydrocarbon; an aromatic hydrocarbon, an ester, an ether and mixtures thereof, the amount of this solvent being from 0À1 to 10 times the weight of the aqueous solution, and then heating the mixture to a temperature of from 50‹ to 200‹ C. in an atmosphere of CO at a partial pressure of CO in the range of 70 to 200 kg./cm.<2> gauge and then recovering a solution of dicobalt carbonyl dissolved in the organic solvent. The free carbonyl can be obtained, if desired, by evaporating the solvent. The so-called metallic extraction agent is defined as an oxide, hydroxide, carbonate or bicarbonate of an alkali or alkaline earth metal, Raney iron, oxides or hydroxides of iron, iron salts of weak acids, e.g. iron carbonate, bicarbonate, sulphide, naphthenate, lactate or acetylacetonate, and zeolite containing ions of alkali metals, alkaline earth metals, cobalt or iron. The alkali metals are defined as Li, Na and K, and the alkaline earth metals are defined as Be, Ca, Mg, Ba and Sr. The mineral acid used may be H2SO4, HCl or H3PO4, and the organic acid may be trichloracetic or p-toluene sulphonic acid, and the acid may be used in an amount more than that which is equivalent to the amount of the metal salt of carbonyl cobaltate present. In example propylene is reacted in the presence of toluene in a mixture of CO and H2 under pressure at temperatures up to 130‹ C. to produce the desired oxo reaction product, dicobalt octacarbonyl being utilized as catalyst. |
| priorityDate | 1970-09-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 63.