公开(公告)号：AT284866T

公开(公告)日：2005-01-15

申请号：AT99108788

申请日：1999-05-03

Applicant: DEGUSSA

Inventor： KOERFER MARTIN ,  ROHLAND LUTZ ,  BINDER WOLFRAM DR ,  HASSELBACH HANS JOACHIM DR ,  ALT HANS CHRISTIAN ,  HUTHMACHER KLAUS DR ,  KNIESEL HEIDEMARIE DR

IPC: A23K1/16 ,  A23K50/15 ,  C07C319/20 ,  C07C319/28 ,  C07C323/58 ,  C07C323/60

Abstract: Production of aqueous sodium methioninate (I) solution containing little sodium carbonate from the crude mixture from alkaline hydrolysis of 5-( beta -methylmercapto-ethyl)-hydantoin (II) comprises: (a) distilling water from mixture, preferably with sodium hydroxide addition, until the (I) content is 60-90 wt.%; and (b) separating the sodium carbonate precipitate at 90-140 degrees C. Production of aqueous sodium methioninate (I) solution containing little sodium carbonate from the crude mixture from the alkaline hydrolysis of 5-( beta -methylmercapto-ethyl)-hydantoin (II) with 1.1-6 equivalents of sodium hydroxide and/or carbonate comprises: (a) distilling water from the mixture, preferably with addition of more sodium hydroxide, until the (I) content is 60-90 wt.%; and (b) separating the sodium carbonate precipitate in anhydrous form or as monohydrate and/or bicarbonate, at 90-140 degrees C. An Independent claim is also included for free-running (I) granulate.

公开(公告)号：DE10238212A1

公开(公告)日：2004-03-04

申请号：DE10238212

申请日：2002-08-21

Applicant: DEGUSSA

Inventor： KOERFER MARTIN ,  BUSS DIETER ,  WEIGEL HORST ,  WECKBECKER CHRISTOPH ,  HASSELBACH HANS JOACHIM ,  HUTHMACHER KLAUS

IPC: C07C227/24 ,  C07C229/08 ,  C07C229/36 ,  C07C319/20 ,  C07C323/58 ,  C07D233/86

Abstract: The invention relates to a process for the preparation of alpha -amino acids by hydrolysis of hydantoins in the presence of water and at least one metallic oxide under conditions such that all the starting materials are completely dissolved in the water as a result of high pressure and high temperature and only one further phase is present in the reactor in addition to the metallic oxide phase.

公开(公告)号：DE59610116D1

公开(公告)日：2003-03-13

申请号：DE59610116

申请日：1996-10-25

Applicant: DEGUSSA

Inventor： GEIGER DR ,  HALSBERGHE BAUDOUIN ,  HASSELBACH DR ,  HENTSCHEL DR ,  HUTHMACHER DR ,  KOERFER MARTIN ,  MANNSFELD DR ,  TANNER DR ,  THEISSEN DR ,  VANROBAEYS JOSE ,  WILLIGERODT DR

IPC: C07C319/20 ,  C07C319/28 ,  C07C323/58 ,  C07D233/76

Abstract: Preparation of DL-methionine from aqueous alkalimethionine solvent with carbon dioxide comprises adding antifoaming agent before the release of methionine from alkalimethionine containing aqueous solution.

公开(公告)号：PL335250A1

公开(公告)日：2000-04-10

申请号：PL33525098

申请日：1998-01-31

Applicant: DEGUSSA

Inventor： BINDER WOLFRAM ,  HASSEBERG HANS ALBRECHT ,  KNIESEL HEIDEMARIE ,  KOERFER MARTIN

IPC: A23K20/142 ,  A23K40/10 ,  A23K1/16

Abstract: The invention relates to a method for producing a pourable, methionine salt based animal food supplement which is easy to handle, wherein a granulated product is manufactured from a methionine salt solution which can be obtained according to traditional methods. The invention further relates to methioninate granulated products that are thus obtained.

公开(公告)号：DE19707380A1

公开(公告)日：1998-08-27

申请号：DE19707380

申请日：1997-02-25

Applicant: DEGUSSA

Inventor： BINDER WOLFRAM DR ,  HASSEBERG HANS-ALBRECHT DR ,  KNIESEL HEIDEMARIE DR ,  KOERFER MARTIN

IPC: A23K20/142 ,  A23K40/10 ,  A23K1/16 ,  A23K1/175 ,  A23P1/02

Abstract: The invention relates to a method for producing a pourable, methionine salt based animal food supplement which is easy to handle, wherein a granulated product is manufactured from a methionine salt solution which can be obtained according to traditional methods. The invention further relates to methioninate granulated products that are thus obtained.

公开(公告)号：ZA9610608B

公开(公告)日：1997-06-24

申请号：ZA9610608

申请日：1996-12-17

Applicant: DEGUSSA

Inventor： GEIGER FRIEDHELM ,  HALSBERGHE BAUDOUIN ,  HASSELBACH HANS-JOACHIM ,  HENTSCHEL KLAUS ,  HUTHMACHER KLAUS ,  KOERFER MARTIN ,  MANNSFELD SVEN-PETER ,  TANNER HERBERT ,  THEISSEN FERDINAND ,  VANROBAEYS JOSE ,  WILLEGERODT KLAUS

IPC: C07C319/20 ,  C07C319/28 ,  C07C323/58 ,  C07D233/76 ,  C07C ,  C07D

Abstract: Preparation of DL-methionine from aqueous alkalimethionine solvent with carbon dioxide comprises adding antifoaming agent before the release of methionine from alkalimethionine containing aqueous solution.

公开(公告)号：SG192908A1

公开(公告)日：2013-09-30

申请号：SG2013063763

申请日：2012-02-13

Applicant: EVONIK DEGUSSA GMBH

Inventor： BUSS DIETER ,  STEURENTHALER MARTIN ,  HASSELBACH HANS JOACHIM ,  RINNER MICHAEL R ,  FONFE BENJAMIN ,  KOERFER MARTIN ,  KRETZ STEPHAN

Abstract: 39Storage-stable 2-hydroxy-4-(methylthio)butyronitrile Abstract

公开(公告)号：MX2013009639A

公开(公告)日：2013-09-26

申请号：MX2013009639

申请日：2012-02-13

Applicant: EVONIK DEGUSSA GMBH

Inventor： BUSS DIETER ,  STEURENTHALER MARTIN ,  RINNER MICHAEL R ,  KRETZ STEPHAN ,  HASSELBACH HANS JOACHIM ,  KOERFER MARTIN ,  FONFE BENJAMIN

IPC: C07C319/26 ,  C07C323/12

Abstract: La presente invención se relaciona con un compuesto que contiene 86 a 97% en peso de nitrilo del ácido 2-hidroxi-4-metiltio butírico, 2 a 14% en peso de agua, 0.05 a 0.5% en peso de HCN y que tiene un valor de pH de 1 a 4, medido con un electrodo de pH a 23°C. La invención se relaciona además con un método para producir tal compuesto y con el uso del mismo como una forma estable en almacenamiento de nitrilo del ácido 2-hidroxi-4-(metiltio) butírico.

公开(公告)号：MX2013007068A

公开(公告)日：2013-07-17

申请号：MX2013007068

申请日：2011-12-19

Applicant: EVONIK DEGUSSA GMBH

Inventor： KOERFER MARTIN ,  FINKELDEI CASPAR HEINRICH ,  ZACCHI PABLO

IPC: B01D53/00 ,  B01D53/44 ,  F23G7/06

Abstract: La presente invención se relaciona con un método para la combustión retardada térmicamente de los flujos del gas residual que se desarrollan durante la producción de acroleína en un proceso en fase gaseosa y para la combustión retardada térmicamente de los flujos de gas residual que se desarrollan durante la producción de ácido cianhídrico en un proceso en fase gaseosa, caracterizado porque los flujos de gas residual de la producción de acroleína y los flujos de gas residual de la producción de ácido cianhídrico se suministran a un proceso de combustión retardada térmica junto.

公开(公告)号：DE102010064250A1

公开(公告)日：2012-06-28

申请号：DE102010064250

申请日：2010-12-28

Applicant: EVONIK DEGUSSA GMBH

Inventor： FINKELDEI CASPAR HEINRICH DR ,  ZACCHI PABLO ,  FONFE BENJAMIN DR ,  KRETZ STEPHAN ,  KOERFER MARTIN ,  HASSELBACH HANS JOACHIM DR ,  BOECK WOLFGANG DR

IPC: C07C325/00 ,  C07C47/22 ,  C07C321/04

Abstract: Gegenstand der vorliegenden Erfindung ist ein Verfahren zur Herstellung von Methylmercaptopropionaldehyd aus gasförmigem Acrolein und Methylmercaptan dadurch gekennzeichnet, dass in einem Verfahrensschritt gleichzeitig (a) gasförmiges Acrolein von einem Gemisch mindestens enthaltend eine Verbindung aus der Gruppe bestehend aus dem Hemithioacetal des Methylmercaptopropionaldehyds, Methylmercaptopropionaldehyd und Methylmercaptan absorbiert wird, (b) in diesem Gemisch Acrolein mit Methylmercaptan und/oder dem Hemithioacetal des Methylmercaptopropionaldehyds zu Methylmercaptopropionaldehyd umgesetzt wird und (c) Verunreinigungen und Nebenprodukte aus diesem Gemisch entfernt werden.