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FR2310343A1 - Traitement de la vapeur d'eau engendree lors de la concentration d'une solution aqueuse d'uree - Google Patents

Traitement de la vapeur d'eau engendree lors de la concentration d'une solution aqueuse d'uree

Info

Publication number
FR2310343A1
FR2310343A1 FR7540353A FR7540353A FR2310343A1 FR 2310343 A1 FR2310343 A1 FR 2310343A1 FR 7540353 A FR7540353 A FR 7540353A FR 7540353 A FR7540353 A FR 7540353A FR 2310343 A1 FR2310343 A1 FR 2310343A1
Authority
FR
France
Prior art keywords
concentration
treatment
water vapor
generated during
urea solution
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
FR7540353A
Other languages
English (en)
Other versions
FR2310343B1 (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.)
Mitsui Toatsu Chemicals Inc
Original Assignee
Mitsui Toatsu Chemicals Inc
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 Mitsui Toatsu Chemicals Inc filed Critical Mitsui Toatsu Chemicals Inc
Publication of FR2310343A1 publication Critical patent/FR2310343A1/fr
Application granted granted Critical
Publication of FR2310343B1 publication Critical patent/FR2310343B1/fr
Granted 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
    • C07C273/04—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 from carbon dioxide and ammonia

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)
FR7540353A 1975-05-06 1975-12-31 Traitement de la vapeur d'eau engendree lors de la concentration d'une solution aqueuse d'uree Granted FR2310343A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50053141A JPS51128915A (en) 1975-05-06 1975-05-06 Treatment of vapour generated in concentration of in aqueous urea solu tion

Publications (2)

Publication Number Publication Date
FR2310343A1 true FR2310343A1 (fr) 1976-12-03
FR2310343B1 FR2310343B1 (fr) 1980-09-19

Family

ID=12934538

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7540353A Granted FR2310343A1 (fr) 1975-05-06 1975-12-31 Traitement de la vapeur d'eau engendree lors de la concentration d'une solution aqueuse d'uree

Country Status (14)

Country Link
US (1) US4207256A (fr)
JP (1) JPS51128915A (fr)
AR (1) AR206244A1 (fr)
AU (1) AU503462B2 (fr)
BR (1) BR7508676A (fr)
CA (1) CA1064051A (fr)
DE (1) DE2559112C3 (fr)
EG (1) EG12001A (fr)
ES (1) ES443998A1 (fr)
FR (1) FR2310343A1 (fr)
GB (1) GB1509950A (fr)
IT (1) IT1051981B (fr)
NL (1) NL172950C (fr)
NO (1) NO150115C (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2333780A1 (fr) * 1975-12-05 1977-07-01 Mitsui Toatsu Chemicals Procede de recuperation des substances n'ayant pas reagi et de la chaleur dans la synthese de l'uree

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1068268B (it) * 1976-09-09 1985-03-21 Snam Progetti Procedimento per la produzione di urea e purificazione delle acque
JPS5797400A (en) * 1980-12-09 1982-06-17 Mitsubishi Electric Corp Speed controlling device for motor driven generator
NL8303888A (nl) * 1983-11-13 1985-06-03 Unie Van Kunstmestfab Bv Werkwijze voor de bereiding van ureum.
RU2113636C1 (ru) * 1997-06-16 1998-06-20 Сергей Анатольевич Попов Насосно-эжекторная установка (варианты)
CN109516932B (zh) * 2018-12-19 2024-04-12 安徽节源环保科技有限公司 一种尿素装置节能改造的工艺系统
DE102019208859A1 (de) * 2019-06-18 2020-12-24 Skw Stickstoffwerke Piesteritz Gmbh Verfahren zur kontinuierlichen Herstellung reiner Harnstofflösungen durch Verwertung von Prozesswasser

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1248639B (fr) * 1959-07-03
GB948786A (en) * 1959-10-23 1964-02-05 Toyo Koatsu Ind Inc An improvement in synthesis of urea
US3232983A (en) * 1960-01-08 1966-02-01 Pullman Inc Urea synthesis
NL137130C (fr) * 1966-01-20 1900-01-01
US3636106A (en) * 1968-09-12 1972-01-18 Chemical Construction Corp Process for urea synthesis
US3668250A (en) * 1969-08-19 1972-06-06 Chemical Construction Corp Urea synthesis process
US3711544A (en) * 1970-04-20 1973-01-16 Lummus Co Heat recovery in urea synthesis
US3932504A (en) * 1970-05-19 1976-01-13 Vulcan-Cincinnati, Inc. Urea manufacture
US3824283A (en) * 1970-11-02 1974-07-16 Chemical Construction Corp Urea synthesis process
JPS5535378B2 (fr) * 1973-02-14 1980-09-12
US3922222A (en) * 1973-02-20 1975-11-25 Cf Ind Method for treatment of urea crystallizer condensate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2333780A1 (fr) * 1975-12-05 1977-07-01 Mitsui Toatsu Chemicals Procede de recuperation des substances n'ayant pas reagi et de la chaleur dans la synthese de l'uree

Also Published As

Publication number Publication date
DE2559112A1 (de) 1976-11-11
BR7508676A (pt) 1976-11-09
IT1051981B (it) 1981-05-20
JPS51128915A (en) 1976-11-10
NO150115B (no) 1984-05-14
GB1509950A (en) 1978-05-10
AR206244A1 (es) 1976-07-07
NO150115C (no) 1984-08-22
EG12001A (en) 1978-06-30
DE2559112C3 (de) 1979-06-13
NL172950C (nl) 1983-11-16
FR2310343B1 (fr) 1980-09-19
AU503462B2 (en) 1979-09-06
AU8735475A (en) 1977-06-23
JPS5243620B2 (fr) 1977-11-01
DE2559112B2 (de) 1978-10-19
US4207256A (en) 1980-06-10
NL7515175A (nl) 1976-11-09
NO754403L (fr) 1976-11-09
ES443998A1 (es) 1977-04-16
CA1064051A (fr) 1979-10-09

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse