CO4440531A1 - Procedimiento para la produccion de melamina altamente pura - Google Patents

Procedimiento para la produccion de melamina altamente pura

Info

Publication number
CO4440531A1
CO4440531A1 CO95060160A CO95060160A CO4440531A1 CO 4440531 A1 CO4440531 A1 CO 4440531A1 CO 95060160 A CO95060160 A CO 95060160A CO 95060160 A CO95060160 A CO 95060160A CO 4440531 A1 CO4440531 A1 CO 4440531A1
Authority
CO
Colombia
Prior art keywords
melamine
ammonia
temperature
degrees degree
procedure
Prior art date
Application number
CO95060160A
Other languages
English (en)
Inventor
Canzi Lorenzo
Aldo Canzi
Gerhard Coufal
Silvano Giacomuzzo
Mario Virardi
Martin Mullner
Original Assignee
Agrolinz Melamin Gmbh
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 Agrolinz Melamin Gmbh filed Critical Agrolinz Melamin Gmbh
Publication of CO4440531A1 publication Critical patent/CO4440531A1/es

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D51/00—Making hollow objects
    • B21D51/02—Making hollow objects characterised by the structure of the objects
    • B21D51/08—Making hollow objects characterised by the structure of the objects ball-shaped objects
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/14—Shredding metal or metal wool article making
    • Y10T29/147—Metal wool bundling
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/18—Expanded metal making
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/30—Foil or other thin sheet-metal making or treating

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Making Paper Articles (AREA)
  • Phenolic Resins Or Amino Resins (AREA)

Abstract

PROCEDIMIENTO PARA PREPARAR MELAMINA DE ALTA PU- REZA PARTIENDO DE UNA REACCION DE LA UREA BAJO PRESION, CARACTERIZADO PORQUE UNA VEZ CONCLUIDA LA REACCION DE TRANSFORMACION SE LLEVA A CABO UN TRATAMIENTO ULTERIOR DE LA MELAMINA QUE CONSISTE EN LAS ETAPAS SIGUIENTES: a) SE SEPARA LA MEZCLA GASEOSA DE NH3/CO2 DE LA MELAMINA LIQUIDA, EVENTUALMENTE b) SE REDUCE EL CO2 DISUELTO EN LA MELAMINA LIQUI- DA POR BURBUJEADO CON AMONIACO GASEOSO c) SE DEJA REPOSAR LA MELAMINA LIQUIDA DURANTE UN TIEMPO PROMEDIO DED 0 A 8 HORAS, A UNA TEMPERATURA COMPRENDIDA ENTRE 430 GRADOS CENTIGRADOS Y EL PUN- TO DE FUSION DE LA MELAMINA Y A UNA PRESION PAR- CIAL DE AMONIACO DE 50 A 400 BARES, Y d) SE ENFRIA LENTA Y CONTROLADAMENTE, DISMINUYENDO LA TEMPERATURA DE a), b) o c) HASTA UNA TEMPERATU- RA COMPRENDIDA ENTRE 330 Y 270 GRADOS CENTIGRADOS CON UNA VELOCIDAD DED ENFRIAMIENTO DE HASTA 150 GRADOS CENTIGRADOS/min Y A UNA PRESION PARCIAL DE AMONIACO DE 50 A 400 BARES, CONSIDERANDO QUE LAS PRESIONES MAS ALTAS PERMITEN OBTENER VELOCIDADES DE ENFRIAMIENTO MAYORES Y VICEVERSA, LAS PRESIONES MAS BAJAS PROPORCIONAN VELOCIDADES DED ENFRIAMIEN- TO MENORES, Y LUEGO, EN UN ORDEN CUALQUIERA, SE ELIMINA LA PRESION SE ENFRIA A TEMPERATURA AMBIEN- TE Y SE OBTIENE LA MELAMINA DE ALTA PUREZA AL ES- TADO DE POLVO.
CO95060160A 1994-12-23 1995-12-19 Procedimiento para la produccion de melamina altamente pura CO4440531A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT0239494A AT403019B (de) 1994-12-23 1994-12-23 Einrichtung zur herstellung von streckmaterial

Publications (1)

Publication Number Publication Date
CO4440531A1 true CO4440531A1 (es) 1997-05-07

Family

ID=3533556

Family Applications (1)

Application Number Title Priority Date Filing Date
CO95060160A CO4440531A1 (es) 1994-12-23 1995-12-19 Procedimiento para la produccion de melamina altamente pura

Country Status (4)

Country Link
US (1) US5781976A (es)
AT (1) AT403019B (es)
CO (1) CO4440531A1 (es)
TW (1) TW300875B (es)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19720229C2 (de) * 1997-05-14 1999-07-01 Spaeth Michael Dr Vorrichtung zur kontinuierlichen Herstellung von Streckmetall aus einer Folie
FR2791463B1 (fr) * 1999-03-22 2001-06-29 Philippe Magnier Dispositif de prevention contre l'explosion des transformateurs electriques
FR2792231B1 (fr) * 1999-04-16 2001-06-15 Andreas Kogler Materiau de garnissage
US20050166536A1 (en) * 2003-10-21 2005-08-04 Lembo Michael J. Method and apparatus for creating creased facing material for insulation product applications
US20050183386A1 (en) * 2003-10-21 2005-08-25 Lembo Michael J. Creased facing material for insulation product applications
US7780886B2 (en) * 2003-10-21 2010-08-24 Certainteed Corporation Insulation product having directional facing layer thereon and method of making the same
US7060148B2 (en) * 2004-02-11 2006-06-13 Certainteed Corporation Method and apparatus for adhering together lanes of compressible products
AT501577B1 (de) * 2004-04-09 2007-05-15 Franz Ing Stuhlbacher Verfahren zum befüllen eines behältnisses mit einem gas
FR2888034B1 (fr) * 2005-06-29 2010-10-08 Philippe Magnier Dispositif de prevention contre l'explosion d'un transformateur electrique
AU2006349821B2 (en) * 2006-10-27 2012-03-15 Philippe Magnier Llc Device for prevention against the explosion of an electric transformer member
TW201204535A (en) * 2010-07-22 2012-02-01 Univ Chung Yuan Christian Non-planar stretching apparatus for producing large dimension thin films
CN102371676A (zh) * 2010-08-09 2012-03-14 私立中原大学 大尺寸薄膜非平面延伸设备
US10322308B1 (en) 2018-02-26 2019-06-18 Atom Alloys, LLC Systems, methods, and assemblies for improvement of explosion and fire resistant properties in fluid containers

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE749689C (de) * 1940-06-01 1944-11-29 Meyer Roth Pastor Maschf Vorrichtung zum Festspannen von Matrizen oder durch Verschrauben verstellbaren Auswerferfuehrungsbuechsen im Revolverkopf von Nieten- oder Bolzenpressen
US2829733A (en) * 1953-08-18 1958-04-08 Res Prod Corp Interstitial body suitable for use as a filter
SE416624B (sv) * 1976-09-13 1981-01-26 Plannja Ab Forfarande och anordning for att profilera ett band av elastoplastiskt material
US4102024A (en) * 1976-12-23 1978-07-25 Eltra Corporation Method and apparatus for making flattened expanded lead strip for battery plates
NZ204244A (en) * 1982-05-19 1986-03-14 Rondo Building Services Ltd Producing expanded metal mesh by passing metal strip through cutting rollers
AT389479B (de) * 1984-09-20 1989-12-11 Ofluoglu Azmi Dr Verfahren und vorrichtung zur herstellung von kugeln aus streckmetall zum ausfuellen von behaeltern fuer brennbare medien
US4621397A (en) * 1985-07-12 1986-11-11 Hannes Schrenk Method of and apparatus for producing expanded metal
AT389658B (de) * 1987-09-04 1990-01-10 Gass Helmut Verfahren und vorrichtung zur herstellung von fuellmaterial fuer hohlraeume sowie derartiges fuellmaterial
DE3814448A1 (de) * 1988-04-28 1989-11-09 Spaeth Michael Max Vorrichtung zur herstellung von streckmaterial
DE3816792A1 (de) * 1988-05-17 1989-11-23 Spaeth Michael Max Verfahren und vorrichtung zum herstellen von fuellkoerpern aus streckmaterial
US5207756A (en) * 1988-12-06 1993-05-04 Shaikh G. M. Y. Alhamad Compositions of matter for stopping fires, explosions and oxidations of materials and build up of electrostatic charges and method and apparatus for making same

Also Published As

Publication number Publication date
ATA239494A (de) 1997-03-15
US5781976A (en) 1998-07-21
TW300875B (en) 1997-03-21
AT403019B (de) 1997-10-27

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