Bp Chemicals Limited

Ian D Dobson

Benjamin Patrick Gracey

Peter S Williams

Werner A Lidy

Barry Hudson

Thakor Kikabhai

Carl A Avison

Simon F Froom

This invention relates to an improved process for the production of hydroxyketones, especially dihydroxyacetone, by the condensation of one or more aldehydes in the presence of a catalyst and the use of specific process train. The product of this process is a relatively pure and any waste products from the reaction are environmentally friendly because none of the chemical components are discharged into the waste streams.

Production of hydroxyketones

Process for producing a secondary amine terminated polyether from a primary amine terminated polyether in which the primary amine terminated polyether is reacted at elevated temperature with a carbonyl compound in the presence of hydrogen and a catalyst composition comprising nickel, ruthenium and at least one other transition metal selected from the second or third row transition metals. The amount of carbonyl compound employed is in excess of the stoichiometric amount required to react completely with the ether. The secondary amine terminated polyethers are useful in the formation of polyurea elastomers.

Process for the production of secondary amine terminated polyethers and

An amine is produced by reacting in the presence of hydrogen at elevated temperature a first reactant which is a compound substantially involatile at the elevated temperature employed and having either one, two or more hydroxyl functions, each of which is independently either a primary or secondary hydroxyl function, with a second reactant which is either ammonia or a primary or a secondary amine in the presence of a reductive amination catalyst wherein the reaction is effected in either a continuously or periodically open system.

Reductive amination of hydroxy-containing compounds

An amine is produced by reacting an amide with hydrogen at elevated temperature in the presence as catalyst of a composition comprising as a first component (i) a noble metal of Group VIII of the Periodic Table of the Elements, particularly palladium or ruthenium, and (ii) rhenium, which component may be supported, and as a second component either an alumina or a zeolite, preferably a low silica aluminosilicate zeolite, for example type A or type Y zeolite.

Process for the production of amines

Amines are produced by reacting at elevated temperature a first reactant which is either an alcohol, an aldehyde or a ketone with a second reactant which is either ammonia, a primary or secondary amine or a nitrile in the presence as catalyst of a composition comprising (i) nickel, (ii) ruthenium, and (iii) at least one other transition metal selected from either the second or third row transition metals, for example palladium, rhenium or iridium.

Growing community of inventors

North Humberside, United Kingdom

Ian D Dobson