ES2082525T3 - Procedimiento para la purificacion de derivados de n-alquilo de urea. - Google Patents

Procedimiento para la purificacion de derivados de n-alquilo de urea.

Info

Publication number
ES2082525T3
ES2082525T3 ES93100264T ES93100264T ES2082525T3 ES 2082525 T3 ES2082525 T3 ES 2082525T3 ES 93100264 T ES93100264 T ES 93100264T ES 93100264 T ES93100264 T ES 93100264T ES 2082525 T3 ES2082525 T3 ES 2082525T3
Authority
ES
Spain
Prior art keywords
purification
urea
procedure
alkyl derivatives
alcoholic
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
ES93100264T
Other languages
English (en)
Inventor
Angelo Bordin
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.)
I Pi Ci SpA
Original Assignee
I Pi Ci SpA
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 I Pi Ci SpA filed Critical I Pi Ci SpA
Application granted granted Critical
Publication of ES2082525T3 publication Critical patent/ES2082525T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
    • C07C273/18—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of substituted ureas
    • C07C273/189—Purification, separation, stabilisation, use of additives

Landscapes

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

Abstract

UN PROCESO PARA LA PURIFICACION DE N-ALQUILUREAS DE GRADO TECNICO, EN PARTICULAR DE MONO-ETILUREAS, INCLUIDO UN SULFATO DE METAL ALCALINO, QUE SE CARACTERIZA PORQUE SE SIGUEN LOS PASOS SIGUIENTES: ALCOHOLICO C1-C4 PARA PROVOCAR LA DISOLUCION SELECTIVA DE LA ALQUILUREA, AL ALCANILO QUE ES INDISOLUBLE EN EL SOLVENTE ALCOHOLICO Y RETIRA EL SOLVENTE ALCOHOLICO DE LA FRACCION SOLUBLE PARA RECUPERAR LA N-ALQUILUREA.
ES93100264T 1992-01-15 1993-01-11 Procedimiento para la purificacion de derivados de n-alquilo de urea. Expired - Lifetime ES2082525T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITTO920022A IT1256666B (it) 1992-01-15 1992-01-15 Procedimento per la purificazione di n-alchil urea di grado tecnico.

Publications (1)

Publication Number Publication Date
ES2082525T3 true ES2082525T3 (es) 1996-03-16

Family

ID=11409887

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93100264T Expired - Lifetime ES2082525T3 (es) 1992-01-15 1993-01-11 Procedimiento para la purificacion de derivados de n-alquilo de urea.

Country Status (6)

Country Link
US (1) US5446200A (es)
EP (1) EP0552626B1 (es)
AT (1) ATE131808T1 (es)
DE (1) DE69301032T2 (es)
ES (1) ES2082525T3 (es)
IT (1) IT1256666B (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19919482C2 (de) * 1999-04-29 2001-04-26 Byk Chemie Gmbh Verfahren zur Herstellung eines Thixotropie-Mittels und dessen Verwendung
US7720908B1 (en) * 2000-03-07 2010-05-18 Microsoft Corporation System and method for multi-layered network communications
WO2015158407A1 (de) 2014-04-15 2015-10-22 Byk-Chemie Gmbh Komposition zur rheologiesteuerung

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2673859A (en) * 1950-09-15 1954-03-30 Allied Chem & Dye Corp Production of urea derivatives
US3297753A (en) * 1965-06-30 1967-01-10 Atlas Chem Ind Separation of alkyl ureas

Also Published As

Publication number Publication date
DE69301032D1 (de) 1996-02-01
DE69301032T2 (de) 1996-05-02
US5446200A (en) 1995-08-29
ITTO920022A0 (it) 1992-01-15
ATE131808T1 (de) 1996-01-15
EP0552626A1 (en) 1993-07-28
ITTO920022A1 (it) 1993-07-15
IT1256666B (it) 1995-12-12
EP0552626B1 (en) 1995-12-20

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