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BR9904064A - Processo para a clivagem redutora de acetais lineares e cìclicos, especialmente formais - Google Patents

Processo para a clivagem redutora de acetais lineares e cìclicos, especialmente formais

Info

Publication number
BR9904064A
BR9904064A BR9904064-6A BR9904064A BR9904064A BR 9904064 A BR9904064 A BR 9904064A BR 9904064 A BR9904064 A BR 9904064A BR 9904064 A BR9904064 A BR 9904064A
Authority
BR
Brazil
Prior art keywords
linear
reducing
formal
cyclic acetals
less
Prior art date
Application number
BR9904064-6A
Other languages
English (en)
Inventor
Marcus Dr Morawietz
Thomas Dr Haas
Olaf Dr Burkhaardt
Rudolf Dr Wanheertum
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 BR9904064A publication Critical patent/BR9904064A/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/132—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen containing functional group
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
    • C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
    • C07C29/88—Separation; Purification; Use of additives, e.g. for stabilisation by treatment giving rise to a chemical modification of at least one compound
    • C07C29/90—Separation; Purification; Use of additives, e.g. for stabilisation by treatment giving rise to a chemical modification of at least one compound using hydrogen only

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Catalysts (AREA)

Abstract

Patente de Invenção: <B>"PROCESSO PARA A CLIVAGEM REDUTORA DE ACETAIS LINEARES E CìCLICOS, ESPECIALMENTE FORMAIS"<D>. A clivagem redutora de acetais lineares e cíclios, especialmente formais, em um meio aquoso contendo um formato ocorre por hidrogenação na presença de um catalisador de hidrogenação heterogêneo em um valor de pH de menos que 7 em uma temperatura de acima de 200°C. O efeito de envenenamento de catalisador do formato é superado em acima de 200 a 300°C, especialmente a partir de acima de 200 a 280°C, de modo que, em um procedimento em suspensão, a razão em peso de metal tendo atividade hidrogenante a acetal pode ser muito menor do que na técnica anterior, por exemplo, menos que 0,1.
BR9904064-6A 1998-09-04 1999-09-02 Processo para a clivagem redutora de acetais lineares e cìclicos, especialmente formais BR9904064A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19840276A DE19840276C2 (de) 1998-09-04 1998-09-04 Verfahren zur reduzierenden Spaltung von linearen und cyclischen Acetalen, insbesondere Formalen

Publications (1)

Publication Number Publication Date
BR9904064A true BR9904064A (pt) 2000-09-19

Family

ID=7879744

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9904064-6A BR9904064A (pt) 1998-09-04 1999-09-02 Processo para a clivagem redutora de acetais lineares e cìclicos, especialmente formais

Country Status (7)

Country Link
US (1) US6265623B1 (pt)
EP (1) EP0983984A3 (pt)
JP (1) JP2000086551A (pt)
BR (1) BR9904064A (pt)
CA (1) CA2281364A1 (pt)
DE (1) DE19840276C2 (pt)
TW (1) TW460443B (pt)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1040870A3 (en) 1999-03-29 2002-02-06 Kabushiki Kaisha Toyota Chuo Kenkyusho Noble metal based catalyst functioning at ordinary temperature and method for destroying noxious gaseous compounds using the same
US6623649B2 (en) * 2000-06-06 2003-09-23 Bp Koln Gmbh Process for removing cyclic acetals from wastewater streams
DE10223054A1 (de) * 2002-05-24 2003-12-04 Basf Ag Verfahren zur Herstellung von Polyetherolen
US8227640B2 (en) * 2007-03-23 2012-07-24 Institute Of Bioengineering And Nanotechnology Palladium catalysts
EP2318346B1 (en) * 2008-08-25 2013-11-20 Dow Global Technologies LLC Polyol ethers and process for making them
WO2011106194A2 (en) * 2010-02-23 2011-09-01 Dow Global Technologies Llc Process for making polyol ethers
DE102010033844B4 (de) * 2010-08-11 2013-01-03 Oxea Gmbh Verfahren zur Gewinnung von Di-Trimethylolpropan und mit Trimethylolpropan angereicherten Produktströmen aus den Nebenströmen der Trimethylolpropanherstellung
US8829207B2 (en) 2011-06-24 2014-09-09 Eastman Chemical Company Production of cyclic acetals by reactive distillation
US9056313B2 (en) 2011-06-24 2015-06-16 Eastman Chemical Company Catalysts for the production of hydroxy ether hydrocarbons by vapor phase hydrogenolysis of cyclic acetals and ketals
US8969598B2 (en) 2011-06-24 2015-03-03 Eastman Chemical Company Production of cyclic acetals or ketals using liquid-phase acid catalysts
US9388105B2 (en) 2011-06-24 2016-07-12 Eastman Chemical Company Production of hydroxy ether hydrocarbons by liquid phase hydrogenolysis of cyclic acetals or cyclic ketals
US8829206B2 (en) 2011-06-24 2014-09-09 Eastman Chemical Company Production of cyclic acetals or ketals using solid acid catalysts
US9000229B2 (en) 2011-06-24 2015-04-07 Eastman Chemical Company Production of hydroxy ether hydrocarbons by vapor phase hydrogenolysis of cyclic acetals and ketals
US8785697B2 (en) 2011-06-24 2014-07-22 Eastman Chemical Company Nickel modified catalyst for the production of hydroxy ether hydrocarbons by vapor phase hydrogenolysis of cyclic acetals and ketals
DE102011118956A1 (de) 2011-11-19 2013-05-23 Oxea Gmbh Verfahren zur Gewinnung von Di-Trimethylolpropan und mit Trimethylolpropan angereicherten Produktströmen aus den Nebenströmen der Trimethylolpropanherstellung
DE102011118953B4 (de) 2011-11-19 2014-06-05 Oxea Gmbh Destillatives Verfahren zur Gewinnung von Di-Trimethylolpropan
DE102011118993A1 (de) 2011-11-19 2013-05-23 Oxea Gmbh Verfahren zur Gewinnung von Di-Trimethylpropan und mit Trimethylpropan angereicherten Produktströmen aus den Nebenströmen der Trimethylolpropanherstellung
DE102011122356A1 (de) 2011-12-23 2013-06-27 Oxea Gmbh Verfahren zur Gewinnung von mit Trimethylolpropan angereicherten Produktströmen aus den Nebenströmen der Trimethylolpropanherstellung
US8921618B2 (en) 2012-09-17 2014-12-30 Oxea Bishop Llc Recovery of trimethylolpropane from purification residue
US8759593B2 (en) 2012-09-17 2014-06-24 Oxea Bishop Llc Recovery of alcohols from purification residue
WO2016187674A1 (en) 2015-05-27 2016-12-01 Newsouth Innovations Pty Limited Method for assisting thermally-induced changes
US20230032113A1 (en) * 2021-07-30 2023-02-02 Armand J. Noel Solvents, methods, and systems for isolating cannabinoids from plants extracts or from synthetic pathways

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7116417A (pt) * 1971-11-30 1973-06-04
DE4220939A1 (de) * 1992-06-26 1994-01-05 Huels Chemische Werke Ag Verfahren zur Herstellung von 2-Aryl-ethanolen
DE4414274A1 (de) * 1994-04-23 1995-10-26 Chemie Linz Deutschland Hydrogenolytische Reduktion eines Aldehyds oder dessen Halbacetals oder dessen Vollacetals zu einem Alkohol
SE9502355L (sv) * 1995-06-29 1996-12-30 Perstorp Ab Spaltning av cykloalkyletrar

Also Published As

Publication number Publication date
JP2000086551A (ja) 2000-03-28
DE19840276A1 (de) 2000-03-09
US6265623B1 (en) 2001-07-24
DE19840276C2 (de) 2002-10-31
TW460443B (en) 2001-10-21
EP0983984A3 (de) 2000-05-17
EP0983984A2 (de) 2000-03-08
CA2281364A1 (en) 2000-03-04

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Legal Events

Date Code Title Description
B25A Requested transfer of rights approved

Free format text: DEGUSSA AG (DE)

B25A Requested transfer of rights approved

Free format text: PERSTORP SPECIALTY CHEMICALS AB (SE)

B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 8A E 9A ANUIDADES

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO PUBLICADO NA RPI 1990 DE 25/02/2009.