摘要:
Apparatus and method for first mixing continuously at a prechosen flow rate a less dense fluid with a more dense fluid, the fluids being at least partially immiscible, so as to achieve a constant weight ratio of one fluid to the other per prechosen unit of mixed fluid volume transversely across the path of such mixed fluid followed by charging the resulting mixed fluid simultaneously to a multiplicity of tubes in a tubular reactor under conditions of substantially plug flow. At least one of the fluid is a liquid at all times.
摘要:
An improved process for making acrylamide from a composition of acrylonitrile and water utilizing an improved Raney copper catalyst. The catalyst is prepared by contacting particulate copper/aluminum alloy particles with an aqueous solution containing aliphatic hydrocarbon compound having at least two carbon atoms per molecule and further having at least two oxygen containing groups per molecule.
摘要:
Oxamide is prepared by hydrolyzing dicyan in an aqueous solution containing as catalyst (a) one or more molybdates and/or tungstates, (b) at least one metal ion selected from the group consisting of zinc, copper, nickel, cobalt, iron and manganese ions, and, if further required, (c) one or more citrates and/or malates, at a temperature of from 0* to 90*C and pH of from 1 to 6.5.
摘要:
A process for catalytically hydrolyzing a nitrile to the corresponding amide by contacting the nitrile in the presence of water with an activated copper oxide.
摘要:
A HOMOGENEOUS CATALYST SYSTEM CONSISTING OF TRANSITION METAL COMPOUND AND A DIARYL OR DIALKYL PHOSPHINE OXIDE IS USED IN SOLUTION WITH WATER AND A SELECTED NITRILE FOR HYDRATION OF THE NITRILE TO MAKE A CORRESPONDING AMIDE. IN A PREFERRED EMBODIMENT ACRYLONITRILE IS HYDRATED WITH WATER IN PRESENCE OF RHODIUM TRICHLORIDE AND DIPHENYL PHOSPHINE OXIDE OR DIETHYL PHOSPHINE OXIDE TO MAKE ACRYLAMIDE.
摘要:
ORGANIC AMIDES ARE PRODUCED FROM ORGANIC NITRILES BY AN ELECTROLYTIC METHOD. THE PROCESS IS ESPECIALLY APPLICABLE TO THE PREPARATION OF ACRYLAMIDE FROM ACRYLONITRILE.
摘要:
Process for the hydrolysis of organic nitriles to form the corresponding amides by a reaction catalyzed by the presence of Group VIII or IIB metal-containing compounds or complexes at a pH range of from about 6.0 to 12.5, and preferably in the presence of a catalyst coordinating compound.
摘要:
A process for preparing acid amides by hydration of the corresponding nitrile compounds with water in the presence of a catalyst, characterized in that the catalyst is the one prepared by treating a vanadate with a cuprous salt or with at least two of metallic copper, a cuprous salt and a cupric salt.