BR9805621A - Processo para a estabilização de aldeìdos. - Google Patents

Processo para a estabilização de aldeìdos.

Info

Publication number
BR9805621A
BR9805621A BR9805621-2A BR9805621A BR9805621A BR 9805621 A BR9805621 A BR 9805621A BR 9805621 A BR9805621 A BR 9805621A BR 9805621 A BR9805621 A BR 9805621A
Authority
BR
Brazil
Prior art keywords
aldehydes
alkali metal
aldehyde
stabilizing
alkaline earth
Prior art date
Application number
BR9805621-2A
Other languages
English (en)
Other versions
BR9805621B1 (pt
Inventor
Michael Dr Riedel
Wolfgang Zgorzelski
Michael Messerschmidt
Klaus Bergrath
Original Assignee
Celanese 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 Celanese Gmbh filed Critical Celanese Gmbh
Publication of BR9805621A publication Critical patent/BR9805621A/pt
Publication of BR9805621B1 publication Critical patent/BR9805621B1/pt

Links

Classifications

    • 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
    • C07C45/86—Use of additives, e.g. for stabilisation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Glass Compositions (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

Patente de Invenção: <B>"PROCESSO PARA A ESTABILIZAçãO DE ALDEìDOS"<D>. A presente invenção possibilita a estabilização de aldeídos de 3 a 14 átomos de carbono alifáticos contra a polimerização e condensação de aldol. Ele engloba a adição, aos aldeídos, de substâncias que reagem alcalinamente, sendo que, como substância que reage alcalinamente, são adicionados hidróxidos de metais alcalinos, hidróxidos de metais alcalino-terrosos, carbonatos de metais alcalinos, carbonatos de metais alcalino-terrosos ou carboxilatos de metais alcalino-terrosos, e são adicionados ao aldeído a ser estabilizado, em quantidades de 0,05 - 20 ppm, com relação ao aldeído.
BRPI9805621-2A 1997-12-23 1998-12-23 processo para a estabilizaÇço de aldeÍdos. BR9805621B1 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19757531A DE19757531C1 (de) 1997-12-23 1997-12-23 Verfahren zur Stabilisierung von Aldehyden

Publications (2)

Publication Number Publication Date
BR9805621A true BR9805621A (pt) 2000-02-01
BR9805621B1 BR9805621B1 (pt) 2008-11-18

Family

ID=7853182

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI9805621-2A BR9805621B1 (pt) 1997-12-23 1998-12-23 processo para a estabilizaÇço de aldeÍdos.

Country Status (20)

Country Link
US (1) US6137013A (pt)
EP (1) EP0926123B1 (pt)
JP (1) JP4370010B2 (pt)
KR (1) KR100587720B1 (pt)
CN (1) CN1138742C (pt)
AT (1) ATE208756T1 (pt)
AU (1) AU745800B2 (pt)
BR (1) BR9805621B1 (pt)
CA (1) CA2257009C (pt)
DE (2) DE19757531C1 (pt)
DK (1) DK0926123T3 (pt)
ES (1) ES2167832T3 (pt)
HK (1) HK1020335A1 (pt)
ID (1) ID21581A (pt)
MY (1) MY116784A (pt)
PL (1) PL191902B1 (pt)
PT (1) PT926123E (pt)
RO (1) RO120707B1 (pt)
TW (1) TW450957B (pt)
ZA (1) ZA9811721B (pt)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10060755A1 (de) 2000-12-07 2002-06-20 Haarmann & Reimer Gmbh Verfahren zur Stabilisierung von Phenylacetaldehyd
US6995292B2 (en) * 2002-09-16 2006-02-07 Eastman Chemical Company Process for reducing fluoride impurities resulting from use of fluorophosphite catalysts
US6846960B2 (en) * 2002-09-16 2005-01-25 Eastman Chemical Company Process for reducing fluoride impurities resulting from use of fluorophosphite catalysts
WO2007052492A1 (ja) * 2005-11-01 2007-05-10 Central Glass Company, Limited ３，３，３－トリフルオロプロピオン酸の製造方法
CN101597221B (zh) * 2008-06-03 2012-07-25 程存照 天然香料壬醛的合成方法
US8288502B2 (en) 2009-12-18 2012-10-16 Nalco Company Aldehyde-functionalized polymers with enhanced stability

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2170625A (en) * 1938-03-28 1939-08-22 Trojan Powder Co Stabilization of aldehydes
JPS4512282Y1 (pt) * 1968-01-25 1970-05-29
US4020109A (en) * 1972-12-26 1977-04-26 Union Oil Company Of California Stabilizing alkanals
JPS60104058A (ja) * 1983-11-10 1985-06-08 Nippon Soda Co Ltd 含イオウアルデヒド類の安定化方法

Also Published As

Publication number Publication date
CA2257009C (en) 2008-03-11
RO120707B1 (ro) 2006-06-30
ID21581A (id) 1999-06-24
PL191902B1 (pl) 2006-07-31
PT926123E (pt) 2002-05-31
US6137013A (en) 2000-10-24
EP0926123B1 (de) 2001-11-14
HK1020335A1 (en) 2000-04-14
DE59802136D1 (de) 2001-12-20
ZA9811721B (en) 1999-06-24
BR9805621B1 (pt) 2008-11-18
DE19757531C1 (de) 1999-05-12
JPH11246461A (ja) 1999-09-14
DK0926123T3 (da) 2002-03-25
PL330494A1 (en) 1999-07-05
AU745800B2 (en) 2002-04-11
EP0926123A1 (de) 1999-06-30
TW450957B (en) 2001-08-21
KR100587720B1 (ko) 2006-10-04
CN1138742C (zh) 2004-02-18
AU9812798A (en) 1999-07-15
ATE208756T1 (de) 2001-11-15
ES2167832T3 (es) 2002-05-16
CA2257009A1 (en) 1999-06-23
MY116784A (en) 2004-03-31
JP4370010B2 (ja) 2009-11-25
KR19990063348A (ko) 1999-07-26
CN1223997A (zh) 1999-07-28

Similar Documents

Publication Publication Date Title
ATE177123T1 (de) Hochwirksame doppelmetallcyanidkatalysatoren
WO2003042002A1 (fr) Appareil de creation de donnees
DE69014068D1 (de) Laserdiodengepumpte, integrierende Laservorrichtung.
ES2181776T3 (es) Metodo para el segmentado de una entrada de escritura manual.
DK1084167T4 (da) Stabiliseret, vandigt phenolbindemiddel til mineraluld og fremstilling af mineraluldsprodukter
ATE37887T1 (de) Verfahren zur rueckgewinnung von alkalimetall terminierten harzigen copolymerisaten.
ATE206510T1 (de) Lagerschale mit haltenocken und verfahren zu seiner herstellung
BR9805621A (pt) Processo para a estabilização de aldeìdos.
DE69018940D1 (de) Laser, angeregt durch hf-entladung.
DE50207091D1 (de) Verwendung von Katalysatoren zur Herstellung von aliphatischen Oligocarbonatpolyolen
ATE260234T1 (de) Verfahren zur herstellung von gegebenenfalls substituierten p-hydroxymandelsäuren
BR0311166B8 (pt) processo para preparar poliÉster poliàis de alcoàis polivalentes.
DE59203939D1 (de) Tropfenschlagerosionsgeschützte Turbinenschaufel und Verfahren zu ihrer Herstellung.
YU17701A (sh) Postupak za proizvodnju acetata alfa tokoferola
DE50301693D1 (de) Verfahren zur herstellung von polyetherolen
ES528520A0 (es) Un metodo mejorado para recuperar sucrosa de soluciones acuosas que la contienen.
JPS53103323A (en) Reading method for bar code symbol
ES2055926T3 (es) Procedimiento para producir aldehido de vitamina a.
TH38720A (th) วิธีการทำให้แอลดีไฮด์เสถียร
JPS537603A (en) Method of accelerating base-catalyzed, ionic, organic reactions
JPS52112235A (en) Character discrimination unit
FR2674961B1 (fr) Methode pour evaluer a partir de diagraphies, la teneur en matiere organique des roches le long d&#39;un puits.
ITTO920155A1 (it) Apparecchiatura per il trattamento laser di pezzi, in particolare il taglio di un pezzo.
DE68917921D1 (de) Methylierung von organischen verbindungen.
JPS5324985A (en) Judging system for admission or no into special region

Legal Events

Date Code Title Description
TC Change of name
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 23/12/1998, OBSERVADAS AS CONDICOES LEGAIS.

B25A Requested transfer of rights approved

Owner name: OXEA GMBH (DE)

Free format text: TRANSFERIDO DE: CELANESE CHEMICALS EUROPE GMBH

B24C Patent annual fee: request for for restoration

Free format text: REFERENTE A 11A E 12A ANUIDADES

B24H Lapse because of non-payment of annual fees (definitively: art 78 iv lpi)
B24F Patent annual fee: publication cancelled

Free format text: ANULADA A PUBLICACAO CODIGO 24.8 NA RPI NO 2258 DE 15/04/2014 POR TER SIDO INDEVIDA.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE AS 11A E 12A ANUIDADES.

B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2606 DE 15-12-2020 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.