FR1429640A - Process for recovering urea from waste gases originating from the synthesis of melamine from urea, in the gas phase, and freed from melamine - Google Patents

Process for recovering urea from waste gases originating from the synthesis of melamine from urea, in the gas phase, and freed from melamine

Info

Publication number
FR1429640A
FR1429640A FR11050A FR11050A FR1429640A FR 1429640 A FR1429640 A FR 1429640A FR 11050 A FR11050 A FR 11050A FR 11050 A FR11050 A FR 11050A FR 1429640 A FR1429640 A FR 1429640A
Authority
FR
France
Prior art keywords
melamine
urea
freed
synthesis
gas phase
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
FR11050A
Other languages
French (fr)
Inventor
Guenther Hamprecht
Hermann Dieter Fromm
Matthias Schwarzmann
Ludwig Vogel
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 DEB76110A external-priority patent/DE1204679B/en
Application filed by BASF SE, Badische Anilin and Sodafabrik AG filed Critical BASF SE
Priority to FR11050A priority Critical patent/FR1429640A/en
Application granted granted Critical
Publication of FR1429640A publication Critical patent/FR1429640A/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
    • C07C273/14—Separation; Purification; Stabilisation; Use of additives
    • C07C273/16—Separation; Purification

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
FR11050A 1964-03-28 1965-03-29 Process for recovering urea from waste gases originating from the synthesis of melamine from urea, in the gas phase, and freed from melamine Expired FR1429640A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR11050A FR1429640A (en) 1964-03-28 1965-03-29 Process for recovering urea from waste gases originating from the synthesis of melamine from urea, in the gas phase, and freed from melamine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEB76110A DE1204679B (en) 1964-03-28 1964-03-28 Process for separating urea from the waste gases freed from melamine from the melamine synthesis from urea carried out in the gas phase
FR11050A FR1429640A (en) 1964-03-28 1965-03-29 Process for recovering urea from waste gases originating from the synthesis of melamine from urea, in the gas phase, and freed from melamine

Publications (1)

Publication Number Publication Date
FR1429640A true FR1429640A (en) 1966-02-25

Family

ID=25967007

Family Applications (1)

Application Number Title Priority Date Filing Date
FR11050A Expired FR1429640A (en) 1964-03-28 1965-03-29 Process for recovering urea from waste gases originating from the synthesis of melamine from urea, in the gas phase, and freed from melamine

Country Status (1)

Country Link
FR (1) FR1429640A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2314182A1 (en) * 1975-06-10 1977-01-07 Basf Ag PROCESS FOR COOLING THE RESIDUAL REACTION GASES IN THE MELAMINE SYNTHESIS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2314182A1 (en) * 1975-06-10 1977-01-07 Basf Ag PROCESS FOR COOLING THE RESIDUAL REACTION GASES IN THE MELAMINE SYNTHESIS

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