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US 9,067,863 B2Granted
Method for producing amines from sugar alcohols
AssigneeBASF SE
InventorsMartin Ernst, Bram Willem Hoffer, Johann-Peter Melder
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AssigneeBASF SE
InventorsMartin Ernst, Bram Willem Hoffer, Johann-Peter Melder
Estimating the term…
The present invention relates to a process for preparing amines by reacting sugar alcohols with hydrogen and an aminating agent selected from the group of ammonia and primary and secondary amines in the presence of a catalyst at a temperature of from 100° C. to 400° C. and a pressure of from 1 to 40 MPa (from 10 to 400 bar). The catalyst preferably comprises one metal or a plurality of metals or one or more oxygen compounds of the metals of groups 8 and/or 9 and/or 10 and/or 11 of the Periodic Table of the Elements. The sugar alcohol is preferably obtained by hydrogenating the corresponding sugars. The invention further relates to the use of the reaction products as an additive in cement or concrete production and in other fields of use.
A process for preparing amines which comprises reacting sorbitol with hydrogen and an aminating agent selected from the group of ammonia, methylamine, dimethylamine, ethylamine, diethylamine, n-propylamine, di-n-propylamine, isopropylamine, diisopropylamine, isopropylethylamine, n-butylamine, di-n-butylamine, s-butylamine, di-s-butylamine, isobutylamine, n-pentylamine, s-pentylamine, isopentylamine, n-hexylamine, s-hexylamine, isohexylamine, cyclohexylamine, aniline, toluidine, piperidine, morpholine, and pyrrolidine in the presence of a catalyst at a temperature of from 100° C. to 400° C. and a pressure of from 1 to 40 MPa,
A process for preparing amines which comprises reacting sorbitol with hydrogen and ammonia, in the presence of a catalyst at a temperature of from 100° C. to 400° C. and a pressure of from 1 to 40 MPa, wherein the catalyst comprises Ni or NiO, and/or Co or CoO, and/or Cu or CuO, or a Raney sponge including Ni or Co or a mixture thereof, wherein the conversion of sorbitol is from 80% to 100%.
A process for preparing amines comprising reacting sorbitol with hydrogen and an aminating agent selected from the group consisting of ammonia, methylamine, dimethylamine, ethylamine, piperidine, morpholine, and pyrrolidine in the presence of a catalyst selected from Ni or NiO and Co or CoO, or a mixture of Ni or NiO, Co or CoO, and Cu or CuO, at a temperature of from 220° C. to 350° C. and a pressure of from 5 to 30 MPa, wherein the conversion of sorbitol is from 30% to 80%.
Dependencies are inferred from the claim text.