ES2107105T3 - Procedimiento para la preparacion continua de 2,2,6,6-tetrametil-piperidina. - Google Patents

Procedimiento para la preparacion continua de 2,2,6,6-tetrametil-piperidina.

Info

Publication number
ES2107105T3
ES2107105T3 ES94118823T ES94118823T ES2107105T3 ES 2107105 T3 ES2107105 T3 ES 2107105T3 ES 94118823 T ES94118823 T ES 94118823T ES 94118823 T ES94118823 T ES 94118823T ES 2107105 T3 ES2107105 T3 ES 2107105T3
Authority
ES
Spain
Prior art keywords
procedure
tetrametil
piperidina
continuous preparation
triacetonamine
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
ES94118823T
Other languages
English (en)
Inventor
Detlef Dr Kampmann
Georg Stuhlmuller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoechst AG
Original Assignee
Hoechst AG
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 Hoechst AG filed Critical Hoechst AG
Application granted granted Critical
Publication of ES2107105T3 publication Critical patent/ES2107105T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D295/00—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms
    • C07D295/02—Heterocyclic compounds containing polymethylene-imine rings with at least five ring members, 3-azabicyclo [3.2.2] nonane, piperazine, morpholine or thiomorpholine rings, having only hydrogen atoms directly attached to the ring carbon atoms containing only hydrogen and carbon atoms in addition to the ring hetero elements
    • C07D295/023—Preparation; Separation; Stabilisation; Use of additives
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Hydrogenated Pyridines (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

LA REDUCCION DE TRIACETONAMINA CON HIDRACINA SE REALIZA DE FORMA SATISFACTORIA TAMBIEN DE MODO CONTINUO MEDIANTE UNA DESTILACION REACTIVA, CUANDO SE CONFIGURA PRIMERO LA HIDRAZONA Y ESTE COMPUESTO SE DESTILA CONTINUAMENTE EN EL FONDO DE UNA COLUMNA DE DESTILACION EN EL DEPOSITO DE DESTILACION, QUE SE COMPONE DE UN DISOLVENTE DE EBULLICION ALTA Y UN ALCALI, SIENDO TRANSPORTADA Y SIENDO DESTILADA LA 2,2,6,6 -TETRAMETILPIPERIDINA ORIGINADA COMO AZEOTROPO. EN ESTA FORMA DE PROCEDIMIENTO SE COMPENSA UNA RELACION HIDRACINA/TRIACETONAMINA DESDE 1,5 : 1 HASTA 2,0 : 1, DONDE SE AUMENTA CLARAMENTE EL RENDIMIENTO DE PRODUCCION CONTRA LA SINTESIS HABITUAL (> 90 %). PUEDEN SER REDUCIDAS ADEMAS DE FORMA CLARA LAS CANTIDADES DE UTILIZACION DE ALCALI Y DE DISOLVENTE.
ES94118823T 1993-12-11 1994-11-30 Procedimiento para la preparacion continua de 2,2,6,6-tetrametil-piperidina. Expired - Lifetime ES2107105T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4342276A DE4342276A1 (de) 1993-12-11 1993-12-11 Verfahren zur kontinuierlichen Herstellung von 2,2,6,6-letramethylpiperidin

Publications (1)

Publication Number Publication Date
ES2107105T3 true ES2107105T3 (es) 1997-11-16

Family

ID=6504741

Family Applications (1)

Application Number Title Priority Date Filing Date
ES94118823T Expired - Lifetime ES2107105T3 (es) 1993-12-11 1994-11-30 Procedimiento para la preparacion continua de 2,2,6,6-tetrametil-piperidina.

Country Status (9)

Country Link
US (1) US5663351A (es)
EP (1) EP0661265B1 (es)
JP (1) JP3839075B2 (es)
AT (1) ATE155455T1 (es)
CA (1) CA2137747C (es)
DE (2) DE4342276A1 (es)
DK (1) DK0661265T3 (es)
ES (1) ES2107105T3 (es)
GR (1) GR3024447T3 (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0005629D0 (en) 2000-03-10 2000-05-03 Clariant Int Ltd Light stabilizer composition
CN105294541B (zh) * 2015-11-17 2017-10-27 江西科技师范大学 2,2,6,6‑四甲基哌啶的合成方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH601231A5 (es) * 1976-12-09 1978-06-30 Ciba Geigy Ag
US4252958A (en) * 1977-12-21 1981-02-24 Argus Chemical Corporation Process for preparing 2,2,6,6-Tetramethyl-4-oxopiperidine

Also Published As

Publication number Publication date
GR3024447T3 (en) 1997-11-28
DE59403391D1 (de) 1997-08-21
DK0661265T3 (da) 1998-02-02
EP0661265B1 (de) 1997-07-16
CA2137747C (en) 2005-08-30
JP3839075B2 (ja) 2006-11-01
ATE155455T1 (de) 1997-08-15
JPH07252225A (ja) 1995-10-03
EP0661265A1 (de) 1995-07-05
CA2137747A1 (en) 1995-06-12
DE4342276A1 (de) 1995-06-14
US5663351A (en) 1997-09-02

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