PT76822B - Process for the displacement from the liquid to the gaseous phase of the excess of nh3 contained in aqueous solutions of urea - Google Patents

Process for the displacement from the liquid to the gaseous phase of the excess of nh3 contained in aqueous solutions of urea

Info

Publication number
PT76822B
PT76822B PT76822A PT7682283A PT76822B PT 76822 B PT76822 B PT 76822B PT 76822 A PT76822 A PT 76822A PT 7682283 A PT7682283 A PT 7682283A PT 76822 B PT76822 B PT 76822B
Authority
PT
Portugal
Prior art keywords
urea
excess
displacement
contained
liquid
Prior art date
Application number
PT76822A
Other languages
English (en)
Other versions
PT76822A (en
Original Assignee
Montedison 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=11186667&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=PT76822(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Montedison Spa filed Critical Montedison Spa
Publication of PT76822A publication Critical patent/PT76822A/pt
Publication of PT76822B publication Critical patent/PT76822B/pt

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
    • 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
    • Y02P20/141—Feedstock

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
PT76822A 1982-06-08 1983-06-06 Process for the displacement from the liquid to the gaseous phase of the excess of nh3 contained in aqueous solutions of urea PT76822B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8221774A IT1212524B (it) 1982-06-08 1982-06-08 Procedimento perfezionato per il trasferimento, dalla fase liquida alla fase gassosa, dell'ammoniaca in eccesso contenuta in soluzioni acquose di urea.

Publications (2)

Publication Number Publication Date
PT76822A PT76822A (en) 1983-07-01
PT76822B true PT76822B (en) 1986-02-27

Family

ID=11186667

Family Applications (1)

Application Number Title Priority Date Filing Date
PT76822A PT76822B (en) 1982-06-08 1983-06-06 Process for the displacement from the liquid to the gaseous phase of the excess of nh3 contained in aqueous solutions of urea

Country Status (9)

Country Link
EP (1) EP0098396B1 (pt)
AR (1) AR230985A1 (pt)
BR (1) BR8302973A (pt)
CA (1) CA1216594A (pt)
DE (1) DE3375136D1 (pt)
ES (1) ES8407468A1 (pt)
IN (1) IN159132B (pt)
IT (1) IT1212524B (pt)
PT (1) PT76822B (pt)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1163783B (it) * 1983-07-14 1987-04-08 Montedison Spa Processo per la produzione di urea con bassi consumi di vapore
DE3565532D1 (en) * 1984-05-19 1988-11-17 Ammonia Casale Sa Process for the preparation of urea
IT1245396B (it) * 1991-03-22 1994-09-20 Snam Progetti Procedimento per la produzione di urea ad elevata efficienza energetica

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4013718A (en) * 1970-09-03 1977-03-22 Snam Progetti S.P.A. Integrated process for the production of urea
NO150512C (no) * 1977-05-05 1984-10-31 Montedison Spa Fremgangsmaate ved fremstilling av urea.
GB2089786B (en) * 1980-12-23 1985-02-20 Mitsui Toatsu Chemicals Process for synthesizing urea

Also Published As

Publication number Publication date
CA1216594A (en) 1987-01-13
EP0098396A2 (en) 1984-01-18
PT76822A (en) 1983-07-01
IN159132B (pt) 1987-03-28
EP0098396A3 (en) 1984-10-03
IT1212524B (it) 1989-11-30
ES523055A0 (es) 1984-10-01
ES8407468A1 (es) 1984-10-01
DE3375136D1 (en) 1988-02-11
AR230985A1 (es) 1984-08-31
EP0098396B1 (en) 1988-01-07
BR8302973A (pt) 1984-02-07
IT8221774A0 (it) 1982-06-08

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