BR8800751A - Aperfeicoamento em processo de producao de ureia - Google Patents

Aperfeicoamento em processo de producao de ureia

Info

Publication number
BR8800751A
BR8800751A BR8800751A BR8800751A BR8800751A BR 8800751 A BR8800751 A BR 8800751A BR 8800751 A BR8800751 A BR 8800751A BR 8800751 A BR8800751 A BR 8800751A BR 8800751 A BR8800751 A BR 8800751A
Authority
BR
Brazil
Prior art keywords
improvement
production process
urea production
urea
production
Prior art date
Application number
BR8800751A
Other languages
English (en)
Inventor
Hidetsugu Fujii
Original Assignee
Toyo Engineering Corp
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 Toyo Engineering Corp filed Critical Toyo Engineering Corp
Publication of BR8800751A publication Critical patent/BR8800751A/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)
BR8800751A 1987-02-24 1988-02-23 Aperfeicoamento em processo de producao de ureia BR8800751A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62041054A JPH082859B2 (ja) 1987-02-24 1987-02-24 尿素製造方法

Publications (1)

Publication Number Publication Date
BR8800751A true BR8800751A (pt) 1988-10-04

Family

ID=12597692

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8800751A BR8800751A (pt) 1987-02-24 1988-02-23 Aperfeicoamento em processo de producao de ureia

Country Status (6)

Country Link
JP (1) JPH082859B2 (pt)
BR (1) BR8800751A (pt)
DE (1) DE3805403A1 (pt)
ID (1) ID800B (pt)
IN (1) IN169023B (pt)
PL (1) PL152735B1 (pt)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO150512C (no) * 1977-05-05 1984-10-31 Montedison Spa Fremgangsmaate ved fremstilling av urea.
DE3100388A1 (de) * 1981-01-09 1982-09-02 Mitsui Toatsu Chemicals, Inc. "verfahren zur harnstoffsynthese"
NL8104040A (nl) * 1981-09-01 1983-04-05 Unie Van Kunstmestfab Bv Werkwijze voor de bereiding van ureum.
IT1211125B (it) * 1981-10-16 1989-09-29 Ortu Francesco Composti azotati. processo per la preparazione di
IT1163783B (it) * 1983-07-14 1987-04-08 Montedison Spa Processo per la produzione di urea con bassi consumi di vapore

Also Published As

Publication number Publication date
PL270814A1 (en) 1988-12-08
DE3805403A1 (de) 1988-09-01
JPH082859B2 (ja) 1996-01-17
IN169023B (pt) 1991-08-17
PL152735B1 (en) 1991-01-31
JPS63208563A (ja) 1988-08-30
ID800B (id) 1996-07-10
DE3805403C2 (pt) 1990-05-17

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Legal Events

Date Code Title Description
FB19 Grant procedure suspended (art. 19)
FF Decision: intention to grant
FG Letter patent granted
B21A Expiry acc. art. 78, item i of ipl- expiry of the term of protection

Free format text: PATENTE EXTINTA EM 23/02/2003

B15K Others concerning applications: alteration of classification

Ipc: C07C 273/04 (2006.01)