MX9804881A - Procedimiento para la obtencion del acido 2-hidroxi-4-metiltiobutirico. - Google Patents

Procedimiento para la obtencion del acido 2-hidroxi-4-metiltiobutirico.

Info

Publication number
MX9804881A
MX9804881A MX9804881A MX9804881A MX9804881A MX 9804881 A MX9804881 A MX 9804881A MX 9804881 A MX9804881 A MX 9804881A MX 9804881 A MX9804881 A MX 9804881A MX 9804881 A MX9804881 A MX 9804881A
Authority
MX
Mexico
Prior art keywords
seat valves
steering
closure elements
outlet seat
intake
Prior art date
Application number
MX9804881A
Other languages
English (en)
Inventor
Hans-Albrecht Hasseberg
Hans-Joachim Hasselbach
Klaus Huthmacher
Volker Hafner
Harald Heinzel
Barbara Jager
Original Assignee
Degussa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Degussa filed Critical Degussa
Publication of MX9804881A publication Critical patent/MX9804881A/es

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C319/00—Preparation of thiols, sulfides, hydropolysulfides or polysulfides
    • C07C319/26—Separation; Purification; Stabilisation; Use of additives
    • C07C319/28—Separation; Purification
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C319/00—Preparation of thiols, sulfides, hydropolysulfides or polysulfides
    • C07C319/14—Preparation of thiols, sulfides, hydropolysulfides or polysulfides of sulfides
    • C07C319/20—Preparation of thiols, sulfides, hydropolysulfides or polysulfides of sulfides by reactions not involving the formation of sulfide groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C323/00—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups
    • C07C323/50—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and carboxyl groups bound to the same carbon skeleton
    • C07C323/51—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and carboxyl groups bound to the same carbon skeleton having the sulfur atoms of the thio groups bound to acyclic carbon atoms of the carbon skeleton
    • C07C323/52—Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups containing thio groups and carboxyl groups bound to the same carbon skeleton having the sulfur atoms of the thio groups bound to acyclic carbon atoms of the carbon skeleton the carbon skeleton being acyclic and saturated

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Power Steering Mechanism (AREA)

Abstract

En procesos conocidos el MHA es aislado de la mezcla de reaccion obtenida por ácido hidrocianurico (HCN) a metilmercaptopropionaldehido (MNP) e hidrolisis de la cianhidrina de metilmercaptopropionaldehido (MMP-CH) con ácido sulfurico, para lo cual la mezcla de reaccion se pone en contacto con un solvente orgánico en los esencial inmiscible en agua en un sistema de extraccion fluido/fluido, para formar una solucion de extraccion, que consiste del solvente y del MHA transferido de la mezcla de reaccion, y el MHA se obtiene como un extracto de esa solucion de extraccion por medio de evaporacion. Esos procesos resuelven el problema del desperdicio de sulfatos al acoplarse con un sistema de recuperacion de ácido sulfurico. Para la operacion efectiva de este ultimo, las corrientes de desecho que contienen sales deben someterse a una evaporacion. De acuerdo con la invencion, el contenido de sal de la mezcla de reaccion antes de la extraccion fluido/fluido se ajusta a un nivel mayor que aproximadamente 50% en peso y preferentemente mayor 1 55% en peso den relacion a la cantidad total de los componentes no orgánicos en la mezcla de reaccion. Esto mejora el balance de energía del todo el proceso, elimina la necesidad de evaporar soluciones altamente corrosivas, aumenta la velocidad de conversion en la etapa de hidrolisis y mejora los coeficientes de distribucion en la extraccion. El ácido obtenido puede usarse como aditivo para forrajes de animales.
MX9804881A 1995-12-23 1998-06-17 Procedimiento para la obtencion del acido 2-hidroxi-4-metiltiobutirico. MX9804881A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19548538A DE19548538C2 (de) 1995-12-23 1995-12-23 Verfahren zur Gewinnung von 2-Hydroxy-4-methylthiobuttersäure (MHA)

Publications (1)

Publication Number Publication Date
MX9804881A true MX9804881A (es) 1998-10-31

Family

ID=7781282

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9804881A MX9804881A (es) 1995-12-23 1998-06-17 Procedimiento para la obtencion del acido 2-hidroxi-4-metiltiobutirico.

Country Status (17)

Country Link
US (1) US6140536A (es)
EP (1) EP0874811B1 (es)
JP (1) JP3962089B2 (es)
KR (1) KR100460364B1 (es)
CN (1) CN1067377C (es)
AU (1) AU717705B2 (es)
BR (1) BR9612235A (es)
DE (2) DE19548538C2 (es)
ES (1) ES2160264T3 (es)
ID (1) ID16007A (es)
IN (1) IN190919B (es)
MX (1) MX9804881A (es)
MY (1) MY117493A (es)
RU (1) RU2160730C2 (es)
TR (1) TR199801190T2 (es)
TW (1) TW371655B (es)
WO (1) WO1997023452A1 (es)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6017563A (en) 1997-07-25 2000-01-25 Novus International, Inc. Process for optimizing milk production
JP3942715B2 (ja) * 1998-01-06 2007-07-11 パイオニア株式会社 有機ｅｌディスプレイパネル及びその製造方法
FR2780969B1 (fr) * 1998-07-10 2000-08-18 Rhone Poulenc Nutrition Animal Procede de separation de l'acide hydroxymethylthiobutyrique
JP4517474B2 (ja) * 2000-07-25 2010-08-04 住友化学株式会社 ２−ヒドロキシ−４−メチルチオブタン酸の製造方法
JP4517486B2 (ja) * 2000-09-25 2010-08-04 住友化学株式会社 ２−ヒドロキシ−４−メチルチオブタンニトリルの製造方法
JP4517491B2 (ja) * 2000-10-11 2010-08-04 住友化学株式会社 ２−ヒドロキシ−４−メチルチオブタン酸の製造方法
JP4517520B2 (ja) * 2001-02-27 2010-08-04 住友化学株式会社 ２−ヒドロキシ−４−メチルチオブタン酸の製造方法
DE102004041250A1 (de) * 2004-08-26 2006-03-02 Degussa Ag Herstellung von 2-Hydroxy-4-Methylthiobuttersäure
JP2007238552A (ja) * 2006-03-10 2007-09-20 Sumitomo Chemical Co Ltd ２−ヒドロキシ−４−メチルチオブタン酸の製造方法および製造装置
MX341595B (es) 2011-02-23 2016-08-26 Evonik Degussa Gmbh Metodo para producir 2-hidroxi-4-(metiltio)butironitrilo a partir de 3-(metiltio)propanal y cianuro de hidrogeno.
DE102011081828A1 (de) 2011-08-30 2013-02-28 Evonik Degussa Gmbh Verfahren zur Umsetzung von Methylmercaptopropionaldehyd aus Roh-Acrolein und Roh-Methylmercaptan
KR101944569B1 (ko) 2011-08-30 2019-01-31 에보니크 데구사 게엠베하 메티오닌 염의 제조 방법
RU2571755C2 (ru) * 2013-10-23 2015-12-20 Андрей Вилорьевич Доронин Способ сернокислотной переработки сырья
EP3388523A1 (en) 2017-04-13 2018-10-17 Evonik Degussa GmbH Enzymatic method for producing 2-hydroxy-4-methylmercaptobutanoic acid (mha)
CN114349671B (zh) * 2022-03-18 2022-05-27 蓝星安迪苏南京有限公司 化合物及蛋氨酸羟基衍生物的制备方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4524077A (en) * 1983-11-14 1985-06-18 Monsanto Company Liquid 2-hydroxy-4-methylthiobutyric acid and process for the preparation thereof
EP0143100B1 (en) * 1983-11-14 1987-08-05 Monsanto Company Process for the preparation of liquid 2-hydroxy-methylthiobutyric acid
ES2005784A6 (es) * 1988-02-22 1989-03-16 Desarrollo Tecnico Ind S A Soc Un procedimiento para preparar soluciones acuosas de acido 2-hidroxi-4-metil-tiobutirico.
US5498790A (en) * 1993-06-09 1996-03-12 Novus International, Inc. Regeneration of sulfuric acid from sulfate by-products of 2-hydroxy-4-(methylthio)butyric acid manufacture
DE4428608C1 (de) * 1994-08-12 1996-02-29 Degussa Verfahren zur Gewinnung von 2-Hydroxy-4-methylthiobuttersäure (MHA)

Also Published As

Publication number Publication date
TW371655B (en) 1999-10-11
EP0874811A1 (de) 1998-11-04
DE19548538A1 (de) 1997-06-26
AU717705B2 (en) 2000-03-30
AU1190697A (en) 1997-07-17
ID16007A (id) 1997-08-28
TR199801190T2 (xx) 1998-11-23
JP2000502110A (ja) 2000-02-22
EP0874811B1 (de) 2001-06-13
MY117493A (en) 2004-07-31
KR19990076661A (ko) 1999-10-15
KR100460364B1 (ko) 2005-05-20
ES2160264T3 (es) 2001-11-01
CN1067377C (zh) 2001-06-20
WO1997023452A1 (de) 1997-07-03
IN190919B (es) 2003-08-30
US6140536A (en) 2000-10-31
DE19548538C2 (de) 1997-12-18
RU2160730C2 (ru) 2000-12-20
JP3962089B2 (ja) 2007-08-22
BR9612235A (pt) 1999-07-13
CN1205688A (zh) 1999-01-20
DE59607103D1 (de) 2001-07-19

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Legal Events

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FG Grant or registration
MM Annulment or lapse due to non-payment of fees