BE747769A - Procede pour retirer par une distillation en couche mince les residus de synthese d'une solution d'uree - Google Patents

Procede pour retirer par une distillation en couche mince les residus de synthese d'une solution d'uree

Info

Publication number
BE747769A
BE747769A BE747769DA BE747769A BE 747769 A BE747769 A BE 747769A BE 747769D A BE747769D A BE 747769DA BE 747769 A BE747769 A BE 747769A
Authority
BE
Belgium
Prior art keywords
thin layer
urea solution
layer distillation
synthesis residues
residues
Prior art date
Application number
Other languages
English (en)
French (fr)
Original Assignee
Snam Progetti
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 Snam Progetti filed Critical Snam Progetti
Publication of BE747769A publication Critical patent/BE747769A/xx

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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/582—Recycling of unreacted starting or intermediate materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
BE747769D 1969-04-04 1970-03-20 Procede pour retirer par une distillation en couche mince les residus de synthese d'une solution d'uree BE747769A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1507269 1969-04-04

Publications (1)

Publication Number Publication Date
BE747769A true BE747769A (fr) 1970-08-31

Family

ID=11146229

Family Applications (1)

Application Number Title Priority Date Filing Date
BE747769D BE747769A (fr) 1969-04-04 1970-03-20 Procede pour retirer par une distillation en couche mince les residus de synthese d'une solution d'uree

Country Status (17)

Country Link
JP (1) JPS5238017B1 (ru)
AT (1) AT305304B (ru)
BE (1) BE747769A (ru)
BR (1) BR7017988D0 (ru)
CA (1) CA949918A (ru)
CH (1) CH514555A (ru)
CS (1) CS152471B2 (ru)
DE (1) DE2015781B2 (ru)
ES (1) ES378592A1 (ru)
FR (1) FR2042135A5 (ru)
GB (1) GB1292515A (ru)
IE (1) IE34603B1 (ru)
LU (1) LU60616A1 (ru)
NL (1) NL7004886A (ru)
RO (1) RO69432A (ru)
YU (1) YU35113B (ru)
ZM (1) ZM3570A1 (ru)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1209532B (it) * 1984-04-20 1989-08-30 Snam Progetti Processo per la sintesi di urea e materiale utilizzato nello stesso.
JP3259661B2 (ja) * 1997-06-27 2002-02-25 株式会社イトーキクレビオ パネル体連結装置
ITMI20120013A1 (it) 2012-01-09 2013-07-10 Saipem Spa Procedimento per la sintesi di urea comprendente un flusso di passivazione a fondo stripper
DE102019208859A1 (de) 2019-06-18 2020-12-24 Skw Stickstoffwerke Piesteritz Gmbh Verfahren zur kontinuierlichen Herstellung reiner Harnstofflösungen durch Verwertung von Prozesswasser

Also Published As

Publication number Publication date
IE34603B1 (en) 1975-06-25
RO69432A (ro) 1980-12-30
LU60616A1 (ru) 1970-05-28
DE2015781B2 (de) 1973-05-03
YU85270A (en) 1979-12-31
IE34603L (en) 1970-10-04
CS152471B2 (ru) 1973-12-19
YU35113B (en) 1980-09-25
GB1292515A (en) 1972-10-11
JPS5238017B1 (ru) 1977-09-27
FR2042135A5 (ru) 1971-02-05
NL7004886A (ru) 1970-10-06
CA949918A (en) 1974-06-25
ES378592A1 (es) 1972-06-16
ZM3570A1 (en) 1971-07-22
AT305304B (de) 1973-01-15
DE2015781A1 (de) 1970-10-08
CH514555A (fr) 1971-10-31
BR7017988D0 (pt) 1973-04-12

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: SNAM PROGETTI S.P.A.

Effective date: 19870331