摘要:
A polar lubricating fluid comprising aliphatic molecules having hydroxy or ester functional groups. The alcohol lubricant molecules have at least 20 carbon atoms and the ester molecule comprises between 26 and 100 carbon atoms. The oxygenate content of both molecules is at least 0.2 mmoles per gram of lubricant. The alcohol lubricating fluid is produced by a process comprising hydroformylating olefins having at least 20 carbon atoms in the presence of a hydroformylating catalyst and synthesis gas comprising H.sub.2 and CO. The ester lubricating fluid is produced by a subsequent acylation. The reaction is carried out between 150.degree. C. and 300.degree. C.
摘要:
Isomerization of 3-pentenoate esters to 4-pentenoate esters using homogeneous or heterogeneous catalysts of zero valent nickel complexes with an acid promoter.
摘要:
The hydroformylation of 3-methyl-3-buten-1-ol with hydrogen and carbon monoxide, when carried out under relatively mild conditions, gives 2-hydroxy-4-methyltetrahydropyran (MHP) in high rate of reaction and in high selectivity even in a very low rhodium catalyst concentration. MHP is useful as a starting material for the production of 3-methyl-1,5-pentanediol and .beta.-methyl-.delta.-valerolactone which are in turn usable as raw materials for producing polyesters and polyurethanes. The process according to the invention can give such MHP advantageously from the industrial viewpoint and has very great industrial utility.
摘要:
There is disclosed a process for producing certain epoxyorganoalkoxysilanes through the rhodium catalyzed hydrosilation of ethylenically unsaturated epoxides and alkoxysilanes in the presence of nitrogenous impurities.
摘要:
1,1,2-trialkoxyethanes I ##STR1## where R.sup.1, R.sup.2 and R.sup.3 are each C.sub.1 -C.sub.8 -alkyl and R.sup.1 and R.sup.2 may furthermore be bonded to one another to form a 5-membered to 7-membered ring, are prepared by reacting a formaldehyde dialkyl acetal II with carbon monoxide and hydrogen, from 0.5 to 1.5 moles of hydrogen being used per mole of carbon monoxide, and with not less than 1 mole of alcohol R.sup.3 OH per mole of formaldehyde dialkyl acetal under superatmospheric pressure and at elevated temperatures in the presence of a catalyst which is formed from a cobalt carbonyl compound and a trivalent organic compound of the formula III ##STR2## where A is phosphorus, arsenic, antimony or bismuth and R.sup.4, R.sup.5 and R.sup.6 are each an organic radical.
摘要:
A catalyst for producing hydrogen gas from carbon monoxide and water, and a procedure for generating hydrogen gas from carbon monoxide and water in the presence of a catalyst. The catalyst is formed from a complex of a group VIII metal carbonyl and a heterocyclic base, and is of the formula M.sub.3-n M'.sub.n (CO).sub.12-x L.sub.x +yBwhereinM=RuM'=Fen is 0, 1 or 2x is 0, 1 or 2L is a triaryl or trialkyl phosphine or phospite,B is a chelating bidentate aromatic heterocyclic nitrogen-containing base, andy is a whole or fractional number from 1-6.
摘要:
A catalyst system having high activity and selectivity to carbonylation products comprises a rhodium-containing catalytically active component and a halogen-containing promoter component, the halogen being selected from the group consisting of bromine, iodine, bromide compounds, and iodide compounds.
摘要:
This invention relates to the manufacture of valuable alkane polyols by reacting oxides of carbon, such as carbon monoxide, with hydrogen in the presence of a rhodium carbonyl complex in homogeneous liquid phase mixture using a solvent mixture of tetraglyme and a sulfolane.
摘要:
A carboxylic acid, such as propionic acid, is prepared by carbonylation of an olefin, such as ethylene in the presence of water by the use of a molybdenum-nickel-alkali metal, tungsten-nickel alkali metal, or chromium-nickel-alkali metal co-catalyst in the presence of a halide.
摘要:
A hydroformylation catalyst system consisting essentially of a complex combination (1) of rhodium, carbon monoxide and triarylphosphine or triarylphosphite ligand, a compound (2) of cobalt and a triarylphosphine or triarylphosphite compound (3), wherein said system contains a source of at least one conjugated diene (4).