NO20054345L - Fremgangsmate for termisk stabilisering av hoykonsentrerte formaldehydlosninger - Google Patents

Fremgangsmate for termisk stabilisering av hoykonsentrerte formaldehydlosninger

Info

Publication number
NO20054345L
NO20054345L NO20054345A NO20054345A NO20054345L NO 20054345 L NO20054345 L NO 20054345L NO 20054345 A NO20054345 A NO 20054345A NO 20054345 A NO20054345 A NO 20054345A NO 20054345 L NO20054345 L NO 20054345L
Authority
NO
Norway
Prior art keywords
formaldehyde solutions
high concentrated
concentrated formaldehyde
thermally stabilizing
stabilizing high
Prior art date
Application number
NO20054345A
Other languages
English (en)
Inventor
Hans Hasse
Eckhard Stroefer
Thomas Gruetzner
Original Assignee
Basf 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 Basf Ag filed Critical Basf Ag
Publication of NO20054345L publication Critical patent/NO20054345L/no

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C47/00—Compounds having —CHO groups
    • C07C47/02—Saturated compounds having —CHO groups bound to acyclic carbon atoms or to hydrogen
    • C07C47/04—Formaldehyde
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/78—Separation; Purification; Stabilisation; Use of additives
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/78—Separation; Purification; Stabilisation; Use of additives
    • C07C45/81—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation
    • C07C45/82—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation by distillation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

En fremgangsmåte for stabilisering av høykonsentrerte formaldehydløsninger med et CH2O-innhold på > 70 vekt% mot utfelling av faststoffer, omfattende oppvarming av den høykonsentrerte formaldehydløsning med en oppvarmingstakt på minst 5°C/min til en temperatur på fra 80°C til 200°C umiddelbart etter at oppløsningen er blitt fremstilt og lagring av oppløsningen ved en temperatur i dette området.
NO20054345A 2003-03-04 2005-09-20 Fremgangsmate for termisk stabilisering av hoykonsentrerte formaldehydlosninger NO20054345L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10309286A DE10309286A1 (de) 2003-03-04 2003-03-04 Verfahren zur thermischen Stabilisierung hochkonzentrierter Formaldehydlösungen
PCT/EP2004/002181 WO2004078691A1 (de) 2003-03-04 2004-03-04 Verfahren zur thermischen stabilisierung hochkonzentrierter formaldehydlösungen

Publications (1)

Publication Number Publication Date
NO20054345L true NO20054345L (no) 2005-09-26

Family

ID=32864081

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20054345A NO20054345L (no) 2003-03-04 2005-09-20 Fremgangsmate for termisk stabilisering av hoykonsentrerte formaldehydlosninger

Country Status (13)

Country Link
US (1) US7273955B2 (no)
EP (1) EP1601639A1 (no)
JP (1) JP2006515342A (no)
KR (1) KR20050106071A (no)
CN (1) CN1756732A (no)
AU (1) AU2004218302A1 (no)
BR (1) BRPI0408031A (no)
CA (1) CA2517564A1 (no)
DE (1) DE10309286A1 (no)
MX (1) MXPA05009237A (no)
MY (1) MY136772A (no)
NO (1) NO20054345L (no)
WO (1) WO2004078691A1 (no)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7670191B2 (en) * 2007-04-20 2010-03-02 Hon Hai Precision Ind. Co., Ltd. Extension/expansion to universal serial bus connector
WO2010121990A2 (de) 2009-04-20 2010-10-28 Basf Se Verfahren zur herstellung von mda über die stufe des aminals
DE102013008207A1 (de) 2013-05-14 2014-11-20 Basf Se Verfahren zur Herstellung von Acrylsäure mit hoher Raum-Zeit-Ausbeute
DE102013008206A1 (de) 2013-05-14 2014-11-20 Basf Se Verfahren zur Herstellung von Vinylidencarbonsäure(ester)n durch Umsetzung von Formaldehyd mit Alkylcarbonsäure(estern)n
DE102016222657A1 (de) 2016-11-17 2018-05-17 OME Technologies GmbH Verfahren zur Herstellung von Polyoxymethylendimethylethern aus Formaldehyd und Methanol in wässrigen Lösungen
US10377689B2 (en) 2016-11-17 2019-08-13 OME Technologies GmbH Process for preparing polyoxymethylene dimethyl ethers from formaldehyde and methanol in aqueous solutions
DE102020118386B4 (de) 2020-07-13 2024-09-12 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein Verfahren zur Herstellung von Polyoxymethylendimethylethern

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2440732A (en) * 1945-07-19 1948-05-04 Du Pont Aqueous formaldehyde storage
GB1190682A (en) 1967-03-23 1970-05-06 Italiane Resine S P A Soc Concentration of Aqueous Formaldehyde Solutions.
US4247487A (en) * 1972-12-26 1981-01-27 E. I. Du Pont De Nemours And Company Stabilized formaldehyde solutions
IT1067560B (it) * 1976-11-19 1985-03-16 Montedison Spa Processo per la preparazione di sospensioni acquose stabili di formaldeide e prodotti otenuti
US4085079A (en) * 1977-02-02 1978-04-18 Monsanto Company Formaldehyde solutions stabilized with interpolymers of vinyl acetate, vinyl acetal and vinyl alcohol
US4289912A (en) * 1980-05-02 1981-09-15 Celanese Corporation Stabilization of liquid paraformaldehyde
JPH09278700A (ja) * 1996-04-17 1997-10-28 Katayama Chem Works Co Ltd 脂肪族アルデヒド水性溶液、その安定剤及び安定化方法
DE19925870A1 (de) 1999-06-07 2000-12-14 Basf Ag Verfahren zur Umsetzung einer ein Gemisch enthaltenden Lösung
MY142097A (en) * 2001-11-05 2010-09-15 Basf Ag Highly concentrated formaldehyde solution, production and reaction thereof
DE10154187A1 (de) 2001-11-05 2003-05-15 Basf Ag Hochkonzentrierte Formaldehydlösung, deren Herstellung und Umsetzung
DE10158813A1 (de) 2001-11-30 2003-06-12 Basf Ag Verfahren zur Herstellung von Oxymethylenhomo- oder -copolymeren

Also Published As

Publication number Publication date
US7273955B2 (en) 2007-09-25
MY136772A (en) 2008-11-28
MXPA05009237A (es) 2005-10-19
DE10309286A1 (de) 2004-09-16
US20060084827A1 (en) 2006-04-20
WO2004078691A1 (de) 2004-09-16
AU2004218302A1 (en) 2004-09-16
CN1756732A (zh) 2006-04-05
CA2517564A1 (en) 2004-09-16
EP1601639A1 (de) 2005-12-07
BRPI0408031A (pt) 2006-02-14
JP2006515342A (ja) 2006-05-25
KR20050106071A (ko) 2005-11-08

Similar Documents

Publication Publication Date Title
ATE270037T1 (de) Cyclohexandiol kryoprotektor verbindungen
DK1131315T3 (da) Polyhydroxylerede heterocykliske derivater som antikoagulanter
DK1940786T3 (da) Biphenylderivater og deres anvendelse ved behandling af hepatitis C
CY1109441T1 (el) Ενδιαμεσα προϊοντα για την παραγωγη διοξανιου-2-αλκυλκαρβαμικου
NZ592897A (en) Crystals of laquinimod sodium, and process for the manufacture thereof
NO20082116L (no) Kjemisk fremgangsmate for fremstilling av en amido-fenoksybenzosyreforbindelse
NO20070368L (no) Virale polymeraseinhibitorer
TW200724540A (en) Heterocyclic antiviral compounds
CA2384283A1 (en) Process for preparing 4-trifluoromethylsulphinylpyrazole derivative
MXPA05005139A (es) Nuevo proceso para la sintesis de (1s)-4,5-dimetoxi-1-(metilaminometil)-benzociclobutano y sales de adicion del mismo, y aplicacion en la sintesis de ivabradina y sales de adicion de la misma con un acido farmaceuticamente aceptable.
NO20082629L (no) Macrocyklisk factor VIIa-inhibitorer anvendbare som antikoagulanter
MXPA05011962A (es) Oxiarenos substituidos.
NO20054345L (no) Fremgangsmate for termisk stabilisering av hoykonsentrerte formaldehydlosninger
GEP20105071B (en) Processes for preparing 4-(phenoxy-5-methyl-pyrimidin-4-yloxy) piperidine-1-carboxylic acid derivatives and related compounds
DK1289629T3 (da) Mikrofiltrering under anvendelse af aktivt kul
DE60005689D1 (de) Neue aminobenzophenone
NO20083269L (no) Prosess for a anvende krystallinsk orlistatmetoder
UY29745A1 (es) Mezclas pesticidas
MX274842B (es) Procedimiento para la produccion de sales de (4,5-dihidroisoxazol- 3-il)tiocarboxamidina.
AR057566A1 (es) 2- acilaminotiazol -4- carboxamidas insecticidas
TW200510323A (en) Process for the preparation of nonpeptide substituted spirobenzoazepine derivatives
DK1165485T3 (da) Fremgangsmåde til fremstilling af pesticidmellemprodukter
DK1156058T3 (da) Fremgangsmåde til fremstilling af (E,Z) 3-(2-aminoethoxyimino)-androstan-6,17-dion og analoger deraf
MX2008001612A (es) Metodos para preparar acidos boronicos heterociclicos y derivados de los mismos.
EA200901088A1 (ru) Способ получения 5-бензилокси-2-(4-бензилоксифенил)-3-метил-1н-индола