Hydroformylation of olefins
AssigneeStandard Oil Company (Indiana)
InventorAlvin E. Trevillyan
Life of this patent
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Abstract
A novel, heterogeneous catalyst is useful in an improved process for the production of aldehydes and alcohols from olefinic hydrocarbons in the presence of carbon monoxide and hydrogen. The catalyst consists of a polyphenylene substrate to which are bonded diphenylphosphine ligands complexed with a metal carbonyl, such as cobalt carbonyl. The catalyst has excellent thermal stability, is essentially insoluble in the reactants or reaction products, and is active in the hydroformylation reaction at a temperature of about 195.degree. C and a pressure of about 500 psig.
Claims3
A process for the production of aldehydes and alcohols which comprises contacting an olefinic hydrocarbon having about 4 to about 19 carbon atoms with carbon monoxide and hydrogen at the temperature of about 100.degree.-300.degree. C and a pressure of about 10-2,000 psig in the presence of a heterogeneous catalyst consisting of a polyphenylene comprising benzene ring structures bonded into a polymer chain wherein the amount of benzene ring structures bonded to three or more other benzene ring structures is from 15 to 25 percent by weight, the amount of benzene ring structures bonded to two other benzene ring structures is from 45 to 65 percent by weight, and the amount of benzene ring structures is bonded through the meta position to two other benzene ring structures is from 15 to 30 percent by weight, with the remaining benzene ring structures being bonded to only one other benzene ring structure, said polyphenylene having a number average molecular weight in the range of about 1,000 to about 10,000, said polyphenylene having --PR.sub.2 substituents, where R is a phenyl or an alkyl group in amounts such that the ratio of aryl groups to phosphorus atoms is in the range of about 1.0 to about 20, said --PR.sub.2 groups being complexed with a metal carbonyl compound selected from the group consisting of cobalt, rhodium, ruthenium, osmium, iridium, and iron carbonyls in amounts such that the ratio of phosphorus atoms to metal atoms is in the range of from about 1 to about 20.
A process for the production of aliphatic aldehydes and alcohols having from about 7 to about 11 carbon atoms which comprises contacting an olefinic hydrocarbon having from about 6 to about 10 carbon atoms with carbon monoxide and hydrogen at a temperature of about 100.degree.-300.degree. C and a pressure of about 10-2,000 psig in the presence of a heterogeneous catalyst consisting of a polyphenylene comprising benzene ring structures bonded into a polymer chain wherein the amount of benzene ring structures bonded to three or more other benzene ring structures is from 15 to 25 percent by weight, the amount of benzene ring structures bonded to two other benzene ring structures is from 45 to 65 percent by weight, and the amount of benzene ring structures bonded through the meta position to two other benzene ring structures is from 15 to 30 percent by weight, with the remaining benzene ring structures being bonded to only one other benzene ring structure, said polyphenylene having a number average molecular weight in the range of about 1,000 to about 3,000, said polyphenylene having --PR.sub.2 substituents, where R is a phenyl or alkyl group, in amounts such that the ratio of aryl groups to phosphorus atoms is in the range of about 1 to about 50, said --PR.sub.2 substituents being complexed with cobalt carbonyl in amounts such that the ratio of phosphorus atoms to cobalt atoms is in the range of from about 2 to about 10.
A process for the production of a mixture of nonyl aldehydes and nonyl alcohols which comprises contacting octene-1 with carbon monoxide and hydrogen at a temperature of about 195.degree. C and a pressure of about 500 psig with a heterogeneous catalyst consisting of polyphenylene containing benzene ring structures bonded into a polymer chain wherein the amount of benzene ring structures bonded to three or more other benzene ring structures is from 15 to 25 percent by weight, the amount of benzene ring structures bonded to two other benzene ring structures if from 45 to 65 percent by weight, and the amount of benzene ring structures bonded through the meta position to two other benzene ring structures is from 15 to 30 percent by weight, with the remaining benzene ring structures being bonded to only one other benzene ring structure, said polyphenylene having a number average molecular weight of about 2,000, said polyphenylene --P(C.sub.6 H.sub.5).sub.2 substituents in amounts such that the phosphorus content is about 4.2 wt. %, said --P(C.sub.6 H.sub.5).sub.2 substituents being complexed with cobalt carbinyl in amounts such that the cobalt content is about 1.1 wt. %, the ratio of phenyl groups to phosphorus atoms being about 7.0, and the ratio of phosphorus atoms to cobalt atoms being about 7.4.
Dependencies are inferred from the claim text.