NL161137C - Werkwijze ter bereiding van ureum. - Google Patents

Werkwijze ter bereiding van ureum.

Info

Publication number
NL161137C
NL161137C NL6808895.A NL6808895A NL161137C NL 161137 C NL161137 C NL 161137C NL 6808895 A NL6808895 A NL 6808895A NL 161137 C NL161137 C NL 161137C
Authority
NL
Netherlands
Prior art keywords
preparing urea
urea
preparing
Prior art date
Application number
NL6808895.A
Other languages
English (en)
Dutch (nl)
Other versions
NL6808895A (fr
NL161137B (nl
Inventor
M Guadalupi
U Zardi
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 NL6808895A publication Critical patent/NL6808895A/xx
Publication of NL161137B publication Critical patent/NL161137B/xx
Application granted granted Critical
Publication of NL161137C publication Critical patent/NL161137C/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
    • C07C273/04—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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/02—Details
    • H01J17/04—Electrodes; Screens
    • H01J17/06—Cathodes
    • H01J17/066—Cold cathodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0064—Tubes with cold main electrodes (including cold cathodes)
    • H01J2893/0065—Electrode systems
    • H01J2893/0066—Construction, material, support, protection and temperature regulation of electrodes; Electrode cups
    • 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)
NL6808895.A 1967-09-29 1968-06-25 Werkwijze ter bereiding van ureum. NL161137C (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2102767 1967-09-29

Publications (3)

Publication Number Publication Date
NL6808895A NL6808895A (fr) 1969-04-01
NL161137B NL161137B (nl) 1979-08-15
NL161137C true NL161137C (nl) 1980-01-15

Family

ID=11175595

Family Applications (1)

Application Number Title Priority Date Filing Date
NL6808895.A NL161137C (nl) 1967-09-29 1968-06-25 Werkwijze ter bereiding van ureum.

Country Status (15)

Country Link
JP (1) JPS5432767B1 (fr)
AT (1) AT290545B (fr)
BE (1) BE719035A (fr)
CH (1) CH487855A (fr)
CS (1) CS155191B2 (fr)
DE (1) DE1768776B2 (fr)
DK (1) DK118396B (fr)
ES (1) ES358855A1 (fr)
FR (1) FR1576811A (fr)
GB (1) GB1184004A (fr)
IE (1) IE32209B1 (fr)
LU (1) LU56630A1 (fr)
NL (1) NL161137C (fr)
NO (1) NO145949C (fr)
SE (1) SE373574B (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL174548C (nl) * 1977-05-05 1988-05-16 Montedison Spa Werkwijze voor het bereiden van ureum door reaktie van ammoniak en kooldioxyde.
NL7713190A (nl) * 1977-11-30 1979-06-01 Unie Van Kunstmestfab Bv Werkwijze en inrichting voor het verwijderen van ammoniumcarbamaat uit een ureumsynthese- oplossing.
IT1209532B (it) * 1984-04-20 1989-08-30 Snam Progetti Processo per la sintesi di urea e materiale utilizzato nello stesso.
IN169678B (fr) * 1987-08-13 1991-11-30 Austral Pacific Fertilizers
IT1274362B (it) 1995-02-16 1997-07-17 Snam Progetti Procedimento ad alta resa per la sintesi dell'urea
ITMI20120013A1 (it) 2012-01-09 2013-07-10 Saipem Spa Procedimento per la sintesi di urea comprendente un flusso di passivazione a fondo stripper
US20240092730A1 (en) 2021-12-20 2024-03-21 Stamicarbon B.V. Thermal stripping urea production

Also Published As

Publication number Publication date
DE1768776B2 (de) 1973-05-03
ES358855A1 (es) 1970-05-16
CH487855A (fr) 1970-03-31
CS155191B2 (en) 1974-05-30
GB1184004A (en) 1970-03-11
FR1576811A (fr) 1969-08-01
IE32209L (en) 1969-03-29
DE1768776A1 (de) 1971-09-16
JPS5432767B1 (fr) 1979-10-16
NL6808895A (fr) 1969-04-01
AT290545B (de) 1971-06-11
NL161137B (nl) 1979-08-15
BE719035A (fr) 1969-01-16
SE373574B (sv) 1975-02-10
LU56630A1 (fr) 1968-11-14
DK118396B (da) 1970-08-17
NO145949C (no) 1982-06-30
NO145949B (no) 1982-03-22
IE32209B1 (en) 1973-05-16

Similar Documents

Publication Publication Date Title
NL161474C (nl) Werkwijze ter bereiding van polyurethanen.
NL164264C (nl) Werkwijze ter bereiding van alkeen-3-1-olen.
NL144254B (nl) Werkwijze ter bereiding van isopreen.
NL140134B (nl) Werkwijze ter bereiding van fungicide middelen.
NL162381B (nl) Werkwijze ter bereiding van zo zuiver mogelijk beta-glycolide.
NL156574B (nl) Werkwijze ter bereiding van herbicide middelen.
NL173953C (nl) Werkwijze ter bereiding van herbicide preparaten.
NL7605744A (nl) Werkwijze ter bereiding van polyetherpolyolen.
NL161137C (nl) Werkwijze ter bereiding van ureum.
NL144635B (nl) Werkwijze ter bereiding van polyamiden.
NL144953B (nl) Werkwijze ter bereiding van polybutadieen.
NL153185B (nl) Werkwijze ter bereiding van dichloorchinolinen.
FI47374C (fi) Menetelmä anti-Rh-gamma-globuliinin valmistamiseksi.
NL160298C (nl) Werkwijze ter bereiding van polyurethanelastomeren.
NL162360B (nl) Werkwijze ter bereiding van aminen.
NL160264C (nl) Werkwijze ter bereiding van heterocyclische verbindingen.
NL164844C (nl) Werkwijze ter bereiding van herbicide preparaten.
NL162048C (nl) Werkwijze ter bereiding van alkylbenzenen.
NL160795C (nl) Werkwijze ter bereiding van 5-alkenyl-2-norbornenen.
NL170088C (nl) Werkwijze ter bereiding van herbicide preparaten.
NL159633B (nl) Werkwijze ter bereiding van maddrell-zout.
NL159368B (nl) Werkwijze ter bereiding van hydroxybenzonitrilen.
NL142961B (nl) Werkwijze ter bereiding van lincomycine-2-acylaten.
FI46064C (fi) Menetelmä virtsa-aineen valmistamiseksi.
NL160705C (nl) Werkwijze voor het bereiden van ureum bevattend veevoeder.

Legal Events

Date Code Title Description
NL80 Abbreviated name of patent owner mentioned of already nullified patent

Owner name: SNAM

V4 Lapsed because of reaching the maximum lifetime of a patent