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Inventor: Alfred Oftring


Address: Bad Durkheim, DE
No. of applications: 16
Last application issue date: 10/20/2011

Application No.Application TitleIssue Date
20110257431PROCESS FOR PRODUCING SIDE PRODUCT-FREE AMINOCARBOXYLATES
The present invention relates to a process for preparing aminocarboxylates, proceeding from amines, by employing a reaction sequence composed of ethoxylation to amino alcohols and subsequent oxidative dehydrogenation to the corresponding aminocarboxylates, especially th... 		10/20/2011
20110207651PREPARING ETHER CARBOXYLATES
The present invention relates to a process for preparing ether carboxylates.... 		08/25/2011
20110207634PREPARING ETHER CARBOXYLATES
The present invention relates to a process for preparing ether carboxylates.... 		08/25/2011
20100121064NOVEL METHOD FOR PRODUCING TETA BY MEANS OF EDDN
The invention relates to a process for preparing triethylenetetramine (TETA), which, comprises the following steps:
  • a) reaction of ethylenediamine (EDA) with formaldehyde and hydrocyanic acid (HCN) i...
05/13/2010
20100099872PRODUCTION METHOD FOR ETHYLENEAMINE MIXTURES
The invention relates to a process for preparing an ethylene amine mixture, which comprises hydrogenating an amino nitrile mixture comprising at least two α-amino nitriles in an amount of at least 5% by weight in each case in the presence of a catalyst and, if appropri... 		04/22/2010
20100094057METHOD FOR PRODUCING ETHYLENEDIAMINE
The invention relates to a process for preparing ethylenediamine by hydrogenation of aminoacetonitrile over a catalyst, wherein the hydrogenation is carried out in a solution comprising aminoacetonitrile, water in a proportion of from 0 to 60% by weight and a solvent an... 		04/15/2010
20100056828METHOD FOR PRODUCING ETHYLENEAMINES
The invention relates to a process for preparing an ethylene amine mixture, which comprises hydrogenating an amino nitrile mixture comprising at least 30% by weight of aminoacetonitrile (AAN) and at least 5% by weight of iminodiacetonitrile (IDAN) in the presence of a c... 		03/04/2010
20100029991METHOD FOR PRODUCING TRIETHYLENETETRAMINE
The invention relates to a process for preparing triethylenetetramine (TETA), which comprises hydrogenating ethylenediaminediacetonitrile (EDDN) in the presence of a catalyst and a solvent.... 		02/04/2010
20100029976METHOD FOR PRODUCING TETRAETHYLENEPENTAMINE
The invention relates to a process for preparing tetraethylenepentamine (TEPA) by hydrogenation of diethylenetriaminediacetonitrile (DETDN) over a catalyst. If appropriate, DETDN can also be present as a constituent of an amino nitrile mixture which additionally compris... 		02/04/2010
20100016625METHOD FOR PRODUCING AMINONITRILES
The invention relates to a process for preparing an amino nitrile mixture comprising aminoacetonitrile (AAN) and from 5 to 70% by weight of iminodiacetonitrile (IDAN), which comprises heating crude AAN which is largely free of formaldehyde cyanohydrin (FACH-free) at a t... 		01/21/2010
20080197082Aminocarboxylic Acid Esters Having Eo/Po/Buo-Blockpolymers and Use Thereof as Demulsifiers
The present invention relates to aminocarboxylic esters with EO/PO/BuO block polymers, processes for preparing such compounds and the use of these compounds as emulsion breakers, in particular for crude oil emulsions.... 		08/21/2008
20080194858Method for Isolating Methyl Glycine Nitrile-N,N-Diacetonitriles from an Aqueous Crude Mixture
The invention relates to a process for isolating methylglycinenitrile-N,N-diacetonitrile (MGDN) from an aqueous emulsion which comprises MGDN and has an MGDN content of 3-50% by weight in a crystallizer, comprising the steps:
08/14/2008
20080194873Method For Producing Methylglycine-N,N-Diethanoic Acid-Trialkali Metal Salts With A Low By-Product Content
The invention relates to a process for preparing low-by-product, light-color methylglycine-N,N-diacetic acid tri(alkali metal) salt by alkaline hydrolysis of methylglycinediacetonitrile (MGDN), comprising the steps in the sequence (a) to (f):
    		08/14/2008
    20080139772Polymeric Hydrophobic Aminonitrile Quats Used For Bleach Activation
    The present invention relates to a polymer for use as a bleach activator, comprising the monomer units

    where n is an integer from 1 to 4 and R is a branched or unbranched, saturated hydrocarbyl radical having...

    		06/12/2008
    20060210693Method for the reduction of acrylamide formation during heating of amino group-containing compounds
    A process is described for reducing the formation of acrylamide during the heating of amino compounds in the presence of reducing substances, which comprises, before the heating, mixing the amino compounds with ascorbic acid and/or vitamin E. ...     		09/21/2006
    20060058544Neutralization of isophorone nitrile synthesis products
    The present invention relates to a process for preparing 3-cyano-3,5,5-trimethylcyclohexanone (isophoronenitrile) by reacting isophorone with hydrogen cyanide in the presence of a base as a catalyst to obtain a crude isophoronenitrile product, and subsequently distillin...     		03/16/2006
     
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