NIOSHTIC-2 Publications Search

Depleted uranium as catalyst for hydrocracking shale oil.

Authors
Cottingham-PL; Barker-LK
Source
Ind Eng Chem Prod Res Develop 1973 Mar; 12(1):41-47
NIOSHTIC No.
10010584
Abstract
Hydroformylation of methyl linoleate and linolenate with a rhodium-triphenylphosphine catalyst yields 1,4- diformyl esters as major products and 1,3-diformyl esters as minor products. Unsaturated and saturated monoformyl esters are also produced from both substrates and triformyl esters from methyl linolenate. Conjugated methyl linoleate produces mainly monoformyl esters, whereas methyl cis-9,cis-15-octadecadienoate produces diformyl esters. The mechanism postulated for dihydroformylation involves cyclic unsaturated acyl-rhodium-triphenylphosphine complexes controlling the position of the second formyl group. These intermediates are also implicated in double-bond hydrogenation and isomerization which accompany dihydroformylation. The polyformyl ester products formed contrast with the monoformyl ester products obtained when cobalt carbonyl catalysts are used.
Keywords
Hydrocarbons
CODEN
IEPRA6
Publication Date
19730301
Document Type
OP; Journal Article
Fiscal Year
1973
Identifying No.
OP 40-73
Issue of Publication
1
ISSN
0196-4321
NIOSH Division
LERC
Source Name
Industrial & Engineering Chemistry Product Research and Development
State
WY
Page last reviewed: April 12, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division