ES378592A1 - Process for producing urea - Google Patents

Process for producing urea

Info

Publication number
ES378592A1
ES378592A1 ES378592A ES378592A ES378592A1 ES 378592 A1 ES378592 A1 ES 378592A1 ES 378592 A ES378592 A ES 378592A ES 378592 A ES378592 A ES 378592A ES 378592 A1 ES378592 A1 ES 378592A1
Authority
ES
Spain
Prior art keywords
transformed
urea
components
producing urea
distillation
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
ES378592A
Other languages
Spanish (es)
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.)
SnamProgetti SpA
Original Assignee
SnamProgetti SpA
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 SnamProgetti SpA filed Critical SnamProgetti SpA
Publication of ES378592A1 publication Critical patent/ES378592A1/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
    • 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)

Abstract

Procedure for the purification of a urea solution from the components not transformed into urea, contained in the products leaving the synthesis reactor, and for the recovery of said non-transformed components, comprising distillation stages in which it operates with different pressures and temperatures, characterized in that film-type heat exchangers are used for said distillation steps. (Machine-translation by Google Translate, not legally binding)
ES378592A 1969-04-04 1970-04-03 Process for producing urea Expired ES378592A1 (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
ES378592A1 true ES378592A1 (en) 1972-06-16

Family

ID=11146229

Family Applications (1)

Application Number Title Priority Date Filing Date
ES378592A Expired ES378592A1 (en) 1969-04-04 1970-04-03 Process for producing urea

Country Status (17)

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

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1209532B (en) * 1984-04-20 1989-08-30 Snam Progetti PROCESS FOR THE SYNTHESIS OF UREA AND MATERIAL USED IN ITSELF.
JP3259661B2 (en) * 1997-06-27 2002-02-25 株式会社イトーキクレビオ Panel body connection device
ITMI20120013A1 (en) 2012-01-09 2013-07-10 Saipem Spa PROCEDURE FOR THE SYNTHESIS OF UREA INCLUDING A STRIPPER FUND OF PASSIVATION
DE102019208859A1 (en) 2019-06-18 2020-12-24 Skw Stickstoffwerke Piesteritz Gmbh Process for the continuous production of pure urea solutions by utilizing process water

Also Published As

Publication number Publication date
AT305304B (en) 1973-01-15
BR7017988D0 (en) 1973-04-12
YU85270A (en) 1979-12-31
YU35113B (en) 1980-09-25
CS152471B2 (en) 1973-12-19
BE747769A (en) 1970-08-31
IE34603L (en) 1970-10-04
ZM3570A1 (en) 1971-07-22
NL7004886A (en) 1970-10-06
IE34603B1 (en) 1975-06-25
DE2015781B2 (en) 1973-05-03
GB1292515A (en) 1972-10-11
CA949918A (en) 1974-06-25
FR2042135A5 (en) 1971-02-05
RO69432A (en) 1980-12-30
JPS5238017B1 (en) 1977-09-27
LU60616A1 (en) 1970-05-28
CH514555A (en) 1971-10-31
DE2015781A1 (en) 1970-10-08

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