GB1421263A - Process for the production of aqueous urea/formaldehyde solution of high formaldehyde concentration - Google Patents

Process for the production of aqueous urea/formaldehyde solution of high formaldehyde concentration

Info

Publication number
GB1421263A
GB1421263A GB2347973A GB2347973A GB1421263A GB 1421263 A GB1421263 A GB 1421263A GB 2347973 A GB2347973 A GB 2347973A GB 2347973 A GB2347973 A GB 2347973A GB 1421263 A GB1421263 A GB 1421263A
Authority
GB
United Kingdom
Prior art keywords
formaldehyde
urea
solution
absorber
bottoms
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
Application number
GB2347973A
Other languages
English (en)
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
Badische Anilin and Sodafabrik 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
Priority claimed from DE19722224258 external-priority patent/DE2224258C3/de
Application filed by BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Publication of GB1421263A publication Critical patent/GB1421263A/en
Expired 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
    • C07C273/02—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
    • 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
    • C07C45/27—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation
    • C07C45/32—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen
    • C07C45/37—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of >C—O—functional groups to >C=O groups
    • C07C45/38—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of >C—O—functional groups to >C=O groups being a primary hydroxyl group

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
GB2347973A 1972-05-18 1973-05-17 Process for the production of aqueous urea/formaldehyde solution of high formaldehyde concentration Expired GB1421263A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722224258 DE2224258C3 (de) 1972-05-18 Verfahren zur Herstellung von konzentrierten, wäßrigen Lösungen von Formaldehyd und Harnstoff

Publications (1)

Publication Number Publication Date
GB1421263A true GB1421263A (en) 1976-01-21

Family

ID=5845230

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2347973A Expired GB1421263A (en) 1972-05-18 1973-05-17 Process for the production of aqueous urea/formaldehyde solution of high formaldehyde concentration

Country Status (4)

Country Link
BE (1) BE799187A (enrdf_load_html_response)
GB (1) GB1421263A (enrdf_load_html_response)
IT (1) IT985601B (enrdf_load_html_response)
NL (1) NL7307003A (enrdf_load_html_response)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2233849C1 (ru) * 2003-01-08 2004-08-10 Алексеев Вячеслав Евгеньевич Способ получения карбамидоформальдегидного концентрата

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2233849C1 (ru) * 2003-01-08 2004-08-10 Алексеев Вячеслав Евгеньевич Способ получения карбамидоформальдегидного концентрата

Also Published As

Publication number Publication date
DE2224258B2 (de) 1977-02-10
IT985601B (it) 1974-12-10
BE799187A (fr) 1973-11-07
DE2224258A1 (de) 1973-12-06
NL7307003A (enrdf_load_html_response) 1973-11-20

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19930516