Abstract: A process of reforming an alkyleneamine feedstock or a mixture of such feedstocks to an alkyleneamine or a mixture of alkyleneamines which is different from the feedstock or feedstock mixture. The process is catalyzed by one of the following: Group VB metal oxides, Group VB metal phosphates, Group IIA metal silicates, and tungsten oxides. For example, ethylenediamine is contacted with a catalyst of niobic acid or magnesium silicate to yield predominantly diethylenetriamine and non-cyclic triethylenetetramines; whereas high molecular weight polyethylenepolyamines are cracked by the same catalysts to mixtures of lower molecular weight linear and cyclic materials.

Abstract: The present invention relates to a process for the reduction of the color of polyamines by reacting at elevated temperature, e.g. 120.degree.-170.degree. C., and pressure, e.g. 500 to 6000 psig. the colored polyamines, e.g. triethylenetetramine and tetraethylenepentamine, in the presence of a ruthenium on alumina hydrogenation catalyst. The catalyst for the polyamine decolorization process preferably has at least 0.5 wt. % Ru. In the process of the present invention, the polyamines can either be distilled into a narrow product composition and then hydrogenareal, or a crude polyamine product can be hydrogenated and then distilled to produce the desired product composition.

Abstract: The present invention relates to a process for the reduction of the color of polyamines by reacting at elevated temperature, e.g. 120.degree.-170.degree. C., and pressure, e.g. 500 to 6000 psig. the colored polyamines, e.g. triethylenetetramine and tetraethylenepentamine, in the presence of a cobalt on alumina hydrogenation catalyst promoted with copper and chromium. In the process of the present invention, the polyamines can either be distilled into a narrow product composition and then hydrogenated, or a crude polyamine product can be hydrogenated and then distilled to produce the desired product composition.

Abstract: Color-containing alkanolamines or alkyleneamines, having color numbers of up to 100 PtCo or higher, can be treated with inorganic solid acidic catalysts. Inorganic support materials having bonded inorganic acid functionalities may be used as the inorganic solid acidic catalysts. In the presence of water, these inorganic solid acidic catalysts produce decolorized alkanolamines or alkyleneamines having color numbers of 20 PtCo or less. The process of decolorization can be carried out in batch or continuous mode processes thus providing low cost, high quality and high purity end products.

Abstract: A process of reforming an alkyleneamine feedstock or a mixture of such feedstocks to an alkyleneamine or a mixture of alkyleneamines which is different from the feedstock or feedstock mixture. The process is catalyzed by one of the following: Group VB metal oxides, Group VB metal phosphates, Group IIA metal silicates, and tungsten oxides. For example, ethylenediamine is contacted with a catalyst of niobic acid or magnesium silicate to yield predominantly diethylenetriamine and non-cyclic triethylenetetramines; whereas high molecular weight polyethylenepolyamines are cracked by the same catalysts to mixtures of lower molecular weight linear and cyclic materials.

Abstract: A process of reforming cyclic alkyleneamines to amine-extended cyclic alkyleneamines involving contacting a cyclic alkyleneamine or mixture of cyclic alkyleneamines in the liquid phase with a catalyst under reaction conditions. The catalyst is selected from the group consisting of (a) Group VB metal oxides, (b) Group VB metal phosphates, (c) silicates of Groups IIA, IIIB, IVB and VB, and (d) specified tungsten oxides. For example, piperazine or a mixture of piperazine and aminoethylpiperazine is contacted with magnesium silicate to yield a mixture of amine-extended piperazines, including 1,2-bis(piperazinyl)-ethane and N,N'-bis(2-piperazinylethyl)piperazine.

Abstract: A method for producing secondary amines, particularly fatty secondary amines such as ditallowamine from fatty nitriles, such as tallow nitrile over a reduction, hydrogenation catalyst, such as nickel or cobalt, in two steps has been discovered. The reaction gives high selectivity of secondary amine over the coproduced primary and tertiary amines. The first step of the reaction is conducted continuously in the presence of ammonia and hydrogen. The secondary amine proportion is increased by a second stage using the same catalyst as the first stage, but in the absence of ammonia.

Abstract: A process for selectively preparing predominantly noncyclic polyalkylene polyamines wherein one or more linear alkyleneamines are reacted in the presence of a mordenite catalyst under conditions sufficient to effect a disproportionation reaction. Preferably, the catalyst is prepared by treating the mordenite with an amount of a phosphorus-containing moiety sufficient to provide a catalyst which is impregnated with from about 0.01 to 15 wt % elemental phosphorus based upon the total weight of the impregnated mordenite catalyst. The process is especially useful in the production of diethylenetriamine wherein ethylenediamine is reacted in the presence of LZ-M-8 catalyst which has been treated with an amount of ammonium dihydrogen phosphate sufficient to provide a catalyst which is impregnated with from about 0.1 to 8 wt % elemental phosphorus based upon the total weight of the impregnated mordenite catalyst. The products can be isolated by conventional techniques such as distillation.

Abstract: This invention relates to a process for making amines having a high yield weight percent of diethylenetriamine (DETA) by condensing an amino compound in the presence of a condensation catalyst selected from a Group IVB metal oxide, a metallic phosphate having a cyclic structure or an acyclic structure which is transformed into a cyclic structure during the process, a metallic polyphosphate having a condensed structure, a Group VIB metal-containing substance and a promoted condensation catalyst. This invention also relates to an alkyleneamines producers composition rich in DETA.

Abstract: This invention relates to a process for making amines having a high yield weight percent of linear triethylenetetramine (L-TETA) and aminoethylethanolamine (AEEA) by condensing an amino compound in the presence of a condensation catalyst selected from a Group IVB metal oxide, a Group VIB metal-containing substance and a promoted condensation catalyst. This invention also relates to an alkyleneamines producers composition rich in L-TETA and AEEA.

Abstract: This invention relates to a process for making amines having a high yield weight percent of linear pentaethylenehexamine (L-PEHA) and hydroxyethyldiethylenetriamine (HEDETA) by condensing an amino compound in the presence of a condensation catalyst selected from a Group IVB metal oxide, a Group VIB metal-containing substance and a promoted condensation catalyst. This invention also relates to an alkyleneamines producers composition rich in L-PEHA and HEDETA.

Abstract: This invention relates to a process for making amines by condensing an amino compound in the presence of a Group VIB metal-containing condensation catalyst. This invention also relates to an alkyleneamines producers composition rich in triethylenetetramine (TETA), tetraethylenepentamine (TEPA) and pentaethylenehexamine (PEHA).

Abstract: This invention relates to a process for making amines having a high yield weight percent of pentaethylenehexamine (PEHA) and hydroxyethyltriethylenetetramine (HETETA) by condensing an amino compound in the presence of a condensation catalyst selected from a Group IVB metal oxide, a Group VIB metal-containing substance and a promoted condensation catalyst. This invention also relates to an alkyleneamines producers composition rich in PEHA and HETETA.

Abstract: This invention relates to a process for making amines having a high yield weight percent of aminoethylethanolamine (AEEA) by condensing an amino compound in the presence of a condensation catalyst selected from a Group IVB metal oxide, a Group VIB metal-containing substance and a promoted condensation catalyst. This invention also relates to an alkyleneamines producers composition rich in AEEA.

Abstract: This invention relates to a process for making amines having a high yield weight percent of linear tetraethylenepentamine (L-TEPA) and hydroxyethyldiethylenetriamine (HEDETA) by condensing an amino compound in the presence of a condensation catalyst selected from a Group IVB metal oxide, a Group VIB metal-containing substance and a promoted condensation catalyst. This invention also relates to an alkyleneamines producers composition rich in L-TEPA and HEDETA.

Abstract: A process for reforming alkyleneamines to predominantly linearly-extended polyalkylenepolyamines comprising contacting an alkyleneamine or mixture thereof with a catalyst under conditions such that a mixture of polyalkylenepolyamines enriched in linearly-extended products is formed, said catalyst containing at least one compound selected from the group consisting of (a) Group VB metal oxides, (b) Group VB metal phosphates, (c) silicates of Groups IIA, IIIB, IVB, VB, and the lanthanide and actinide metals, and (d) tungsten oxides, with the proviso that the silicates and tungsten oxides are essentially free of aluminum. For example, ethylenediamine is contacted with a catalyst of niobium phosphate or niobic acid under reaction conditions to yield predominantly non-cyclic polyethylenepolyamines.

Abstract: This invention relates to a process for making amines by condensing an amino compound in the presence of a condensation catalyst and a condensation catalyst promoter, wherein said condensation catalyst promoter is present in an amount sufficient to promote the condensation catalyst. This invention also relates to an alkyleneamines producers composition rich in triethylenetetramine (TETA), tetraethylenepentamine (TEPA) and pentaethylenehexamine (PEHA).

Abstract: This invention relates to a process for making amines having a high yield weight percent of diethylenetriamine (DETA) and aminoethylethanolamine (AEEA) by condensing an amino compound in the presence of a condensation catalyst selected from a Group IVB metal oxide, a Group VIB metal-containing substance and a promoted condensation catalyst. This invention also relates to an alkyleneamines producers composition rich in DETA and AEEA.

Abstract: A process of reforming an alkyleneamine feedstock or a mixture of such feedstocks to an alkyleneamine or a mixture of alkyleneamines which is different from the feedstock or feedstock mixture. The process is catalyzed by one of the following: Group VB metal oxides, Group VB metal phosphates, Group IIA metal silicates, and tungsten oxides. For example, ethylenediamine is contacted with a catalyst of niobic acid or magnesium silicate to yield predominantly diethylenetriamine and non-cyclic triethylenetetramines; whereas high molecular weight polyethylenepolyamines are cracked by the same catalysts to mixtures of lower molecular weight linear and cyclic materials.

Abstract: A method for producing secondary amines, particularly fatty secondary amines such as ditallowamine from fatty nitriles, such as tallow nitrile over a nickel catalyst promoted with copper, chromium and molybdenum has been discovered. The reaction gives high selectivity of secondary amine over the coproduced primary and tertiary amines. The reaction may be conducted continuously in the presence of ammonia and hydrogen. The secondary amine proportion may be increased by a second stage using the same catalyst as the first stage, but in the absence of ammonia. The same catalyst may be used in both steps if a two stage process is used.

Abstract: A process for reforming alkyleneamines to predominantly linearly-extended polyalkylenepolyamines comprising contacting an alkyleneamine or mixture thereof with a catalyst under conditions such that a mixture of polyalkylenepolyamines enriched in linearly-extended products is formed, said catalyst containing at least one compound selected from the group consisting of (a) Group VB metal oxides, (b) Group VB metal phosphates, (c) silicates of Groups IIA, IIIB, IVB, VB, and the lanthanide and actinide metals, and (d) tungsten oxdies, with the proviso that the silicates and tungsten oxides are essentially free of aluminum. For example, ethylenediamine is contacted with a catalyst of niobium phosphate or niobic acid under reaction conditions to yield predominantly non-cyclic polyethylenepolyamines.

Abstract: The object of this invention is the preparation of .alpha.,.omega.-diamines from .alpha., .omega.-dialdehydes in a method which comprises the reaction of a starting mixture of said dialdehyde, a primary amine, and water to form a reaction mixture, followed by treatment of said reaction mixture with excess ammonia and hydrogen in the presence of a hydrogenation catalyst to produce a final mixture.

Abstract: A process for the preparation of predominantly non-cyclic polyalkylenepolyamines comprising contacting a difunctional aliphatic alcohol with ammonia or a primary or secondary aliphatic amine in the presence of a catalyst selected from the group consisting of Group VB metal oxides, niobium phosphates, tantalum phosphates, and mixtures thereof. For example, monoethanolamine is aminated by ethylenediamine to predominantly linear and branched polyethylenepolyamines in the presence of a catalyst containing niobium oxide supported on boehmite alumina.

Abstract: A process for reforming alkyleneamines to predominantly linearly-extended polyalkylenepolyamines comprising contacting an alkyleneamine or mixture thereof with a catalyst under conditions such that a mixture of polyalkylenepolyamines enriched in linearly-extended products is formed, said catalyst containing at least one compound selected from the group consisting of (a) Group VB metal oxides, (b) Group VB metal phosphates, (c) silicates of Groups IIA, IIIB, IVB, VB, and the lanthanide and actinide metals, and (d) tungsten oxides, with the proviso that the silicates and tungsten oxides are essentially free of aluminum. For example, ethylenediamine is contacted with a catalyst of niobium phosphate or niobic acid under reaction conditions to yield predominantly non-cyclic polyethylenepolyamines.

Abstract: N-Alkylanilines can be prepared by reaction of anilines with N,N-dialkylanilines in the gas or liquid phase at elevated temperature by carrying out the reaction in the presence of zeolites.

Abstract: Alkylamines are self-alkylated to longer carbon chain alkylamines using a catalyst comprising a Group VIIB or a Group VIII metal supported on a porous inert carrier.

Abstract: Alkylamines are self-alkylated to longer carbon chain alkylamines using a catalyst mixture comprising a quaternary ammonium halide in combination with ruthenium carbonyl.

Abstract: Alkylamines are self-alkylated to longer carbon chain alkylamines using a catalyst mixture comprising ruthenium carbonyl and a compound of the formula (cyclopentadienyl).sub.n MY.sub.4-n where M is Zr, Hf or Ti, Y is individually selected from hydrogen, C.sub.1 -C.sub.5 alky, C.sub.6 -C.sub.20 aryl, C.sub.1 -C.sub.25 metalalkyl and halogen and n is 1, 2, 3 or 4.

Abstract: Alkylamines are self-alkylated to longer carbon chain alkylamines using a catalyst mixture comprising of aluminum chloride in combination with cobalt and/or ruthenium carbonyl.

Abstract: In the transalkylation of tertiary amines, unexpected higher yields are achieved requiring substantially less catalyst and much shorter reaction times at lower reaction temperatures using a homogeneous catalyst in the presence of an alcohol solvent and carbon monoxide. The process may be exemplified by reacting triethylamine and tripropylamine in the presence of a homogeneous triosmiumdodecacarbonyl catalyst, ethanol, and carbon monoxide to prepare diethylpropylamine and ethyldipropylamine.

Abstract: Disclosed is a process for preparing predominantly linear polyethylenepolyamines from the catalyzed reaction of (1) an ethyleneamine and an alkanolamine, (2) ethyleneamines or (3) an alkanolamine and ammonia. The catalyst employed is a silica-alumina catalyst. An acidic phosphorus cocatalyst may be used in conjunction with the silica-alumina catalyst.

Abstract: Alkylamine compounds which contain at least two alkyl substituents containing from about 2 to about 6 carbon atoms may be alkylated at temperatures ranging from about 50.degree. to about 300.degree. C. and pressures ranging from about 20 to about 300 atmospheres in the presence of a metal carbonyl or a metal compound capable of forming a carbonyl at reaction conditions.