FR2289537A1 - Procede de preparation de solutions aqueuses concentrees de formaldehyde et d'uree - Google Patents

Procede de preparation de solutions aqueuses concentrees de formaldehyde et d'uree

Info

Publication number
FR2289537A1
FR2289537A1 FR7533432A FR7533432A FR2289537A1 FR 2289537 A1 FR2289537 A1 FR 2289537A1 FR 7533432 A FR7533432 A FR 7533432A FR 7533432 A FR7533432 A FR 7533432A FR 2289537 A1 FR2289537 A1 FR 2289537A1
Authority
FR
France
Prior art keywords
formaldehyde
urea
aqueous solutions
concentrated aqueous
preparing concentrated
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.)
Granted
Application number
FR7533432A
Other languages
English (en)
Other versions
FR2289537B1 (fr
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.)
BASF SE
Original Assignee
BASF SE
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 SE filed Critical BASF SE
Publication of FR2289537A1 publication Critical patent/FR2289537A1/fr
Application granted granted Critical
Publication of FR2289537B1 publication Critical patent/FR2289537B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G12/00—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
    • C08G12/02—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes
    • C08G12/04—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds
    • C08G12/10—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds with acyclic compounds having the moiety X=C(—N<)2 in which X is O, S or —N
    • C08G12/12—Ureas; Thioureas
    • 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
    • C07C273/02—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 urea, its salts, complexes or addition compounds
    • C07C273/025—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 urea, its salts, complexes or addition compounds of solutions of urea and formaldehyde

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Phenolic Resins Or Amino Resins (AREA)
FR7533432A 1974-11-02 1975-10-31 Procede de preparation de solutions aqueuses concentrees de formaldehyde et d'uree Granted FR2289537A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742451990 DE2451990C3 (de) 1974-11-02 1974-11-02 Verfahren zur Herstellung von konzentrierten, wäßrigen Lösungen von Formaleyhd und Harnstoff

Publications (2)

Publication Number Publication Date
FR2289537A1 true FR2289537A1 (fr) 1976-05-28
FR2289537B1 FR2289537B1 (fr) 1979-07-06

Family

ID=5929817

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7533432A Granted FR2289537A1 (fr) 1974-11-02 1975-10-31 Procede de preparation de solutions aqueuses concentrees de formaldehyde et d'uree

Country Status (7)

Country Link
JP (1) JPS5170727A (fr)
BE (1) BE835105A (fr)
DE (1) DE2451990C3 (fr)
FR (1) FR2289537A1 (fr)
GB (1) GB1517366A (fr)
IT (1) IT1044595B (fr)
NL (1) NL7512814A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2411850A1 (fr) * 1977-12-19 1979-07-13 Reichhold Chemicals Inc Procede de production continue de solutions aqueuses d'uree et de formaldehyde
EP0083427A1 (fr) * 1981-12-31 1983-07-13 BASF Aktiengesellschaft Procédé pour la préparation de solutions concentrées, aqueuses du formaldéhyde et de l'urée

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2914135A1 (de) * 1979-04-07 1980-10-23 Basf Ag Verfahren zur gleichzeitigen herstellung von konzentrierten, waessrigen formaldehyd/harnstoff-loesungen und formaldehydloesungen
WO2018153736A1 (fr) 2017-02-24 2018-08-30 Basf Se Système de catalyseurs à base d'argent à dépressurisation réduite pour la déshydrogénation oxydative des alcools
EP3539657A1 (fr) 2018-03-14 2019-09-18 Basf Se Catalyseurs améliorés comprenant des composés intermétalliques à base d'argent

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2411850A1 (fr) * 1977-12-19 1979-07-13 Reichhold Chemicals Inc Procede de production continue de solutions aqueuses d'uree et de formaldehyde
EP0083427A1 (fr) * 1981-12-31 1983-07-13 BASF Aktiengesellschaft Procédé pour la préparation de solutions concentrées, aqueuses du formaldéhyde et de l'urée

Also Published As

Publication number Publication date
NL7512814A (nl) 1976-05-04
IT1044595B (it) 1980-03-31
DE2451990C3 (de) 1981-04-09
JPS5170727A (en) 1976-06-18
FR2289537B1 (fr) 1979-07-06
DE2451990A1 (de) 1976-05-13
GB1517366A (en) 1978-07-12
DE2451990B2 (de) 1980-07-31
BE835105A (fr) 1976-04-30

Similar Documents

Publication Publication Date Title
BE825334A (fr) Catalyseur et procede de preparation d&#39;acrylonitrile
FR2323705A1 (fr) Procede de preparation de solutions aqueuses de polyvinylpyrrolidone-iode
FR2274610A1 (fr) Procede integre de preparation de l&#39;uree et de l&#39;ammoniac
FR2285365A1 (fr) Procede de preparation de solutions aqueuses concentrees de formaldehyde
RO63722A (fr) Procede de preparation de l&#39;uree
BE784001A (fr) Procede de preparation d&#39;ammoniac
FR2277806A1 (fr) Procede et catalyseur de preparation de polyols
JPS52147654A (en) Aqueous solution comprising organoosilicon compound and process for production thereof
FR2287435A1 (fr) Procede de preparation de cyclohexane-diones-1,3 et d&#39;alkyl-6-dihydro-3,4-pyranones-2
RO65297A (fr) Procede d&#39;obtention des derives de l&#39;insuline et des metaux alcalins ou de l&#39;ion d&#39;ammonium
FR2274605A1 (fr) Procede de preparation d&#39;insuline, ses analogues et derives
FR2289537A1 (fr) Procede de preparation de solutions aqueuses concentrees de formaldehyde et d&#39;uree
FR2325639A1 (fr) Solutions aqueuses concentrees d&#39;alkyl-sulfates et procede d&#39;obtention
FR2310344A1 (fr) Procede de preparation de derives de carbamate et d&#39;uree
BE834929A (fr) Procede de preparation de tetrafluoroaluminate d&#39;ammonium
FR2307800A1 (fr) Procede de regeneration de solutions aqueuses d&#39;uree
BE822611A (fr) Solutions aqueuses stabilisees de formaldehyde et procede de preparation de ces solutions
FR2287459A1 (fr) Procede de preparation de solutions de resines d&#39;uree et de formaldehyde durcissables
BE806049A (fr) Procede de preparation d&#39;urees substituees
BE832521A (fr) Procede de preparation d&#39;insuline, de ses analogues et derives
BE832218A (fr) Procede de preparation de l&#39;acide 6- aminopenicillanique, de l&#39;acide 7-aminocephalospuranique et ses derives en position 3 de l&#39;acide 7-aminocephalosporanique
BE825871A (fr) Procede de preparation simultanee de cyclohexanonoxime et de solution concentree de sulfate d&#39;ammonium
BE811186A (fr) Procede de preparation de solutions aqueuses concentrees de formaldehyde
BE799187A (fr) Procede pour l&#39;obtention de solutions aqueuses concentrees de formaldehyde et d&#39;uree,
BE835720A (fr) Procede de preparation de produits reactifs de condensation de l&#39;uree et du formaldehyde