NL148879B - METHOD OF PREPARING UREA. - Google Patents

METHOD OF PREPARING UREA.

Info

Publication number
NL148879B
NL148879B NL676700668A NL6700668A NL148879B NL 148879 B NL148879 B NL 148879B NL 676700668 A NL676700668 A NL 676700668A NL 6700668 A NL6700668 A NL 6700668A NL 148879 B NL148879 B NL 148879B
Authority
NL
Netherlands
Prior art keywords
preparing urea
urea
preparing
Prior art date
Application number
NL676700668A
Other languages
Dutch (nl)
Other versions
NL6700668A (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
Application filed by Montedison Spa filed Critical Montedison Spa
Publication of NL6700668A publication Critical patent/NL6700668A/xx
Publication of NL148879B publication Critical patent/NL148879B/en

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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/082—Compounds containing nitrogen and non-metals and optionally metals
    • C01B21/12—Carbamic acid or thiocarbamic acid; Salts thereof
    • 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)
  • Inorganic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
NL676700668A 1966-01-21 1967-01-16 METHOD OF PREPARING UREA. NL148879B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT143866 1966-01-21

Publications (2)

Publication Number Publication Date
NL6700668A NL6700668A (en) 1967-07-24
NL148879B true NL148879B (en) 1976-03-15

Family

ID=11101458

Family Applications (1)

Application Number Title Priority Date Filing Date
NL676700668A NL148879B (en) 1966-01-21 1967-01-16 METHOD OF PREPARING UREA.

Country Status (6)

Country Link
BE (1) BE692926A (en)
CH (1) CH485674A (en)
CS (1) CS167219B2 (en)
FR (1) FR1508004A (en)
GB (1) GB1173195A (en)
NL (1) NL148879B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL187393C (en) * 1982-11-26 1991-09-16 V I Kucheryavy T M Bogdanova D METHOD FOR PREPARING UREA.
EP3656759A1 (en) * 2018-11-22 2020-05-27 Casale Sa A process for the synthesis of urea

Also Published As

Publication number Publication date
BE692926A (en) 1967-07-20
GB1173195A (en) 1969-12-03
CH485674A (en) 1970-02-15
CS167219B2 (en) 1976-04-29
NL6700668A (en) 1967-07-24
DE1618636B2 (en) 1975-08-07
FR1508004A (en) 1967-12-29
DE1618636A1 (en) 1971-04-01

Similar Documents

Publication Publication Date Title
OA00897A (en) Shear.
DK104751C (en) Spinner.
DK106620C (en) Laser.
CH534458A (en) Communication system
NL161137C (en) METHOD FOR PREPARING UREA.
NL157258B (en) CARRIER WINGBOAT.
NL141178B (en) PROCESS FOR THE PREPARATION OF UREA.
NL148879B (en) METHOD OF PREPARING UREA.
NL148308B (en) METHOD OF PREPARING ADIPONITRILE.
CH454298A (en) laser
FI46064C (en) Method for preparing urea.
FI48600C (en) Method for the preparation of aminopenicillins.
FR2592M (en) Substituted phenylbicyclononanes.
FR2737M (en) New alkylthiosteroids.
NL152579B (en) PROCESS FOR PREPARING POLYURETHANES.
FR1375758A (en) Lasers
FR3088M (en) Substituted 2-oxo-tetrahydroquinolines.
SU473358A3 (en) Urea production method
NL160304C (en) METHOD OF PREPARING STABILIZED POLYALKE MIXTURES.
AT304049B (en) holder
CH408500A (en) Demistering system
FR1380571A (en) Carrier
BE694036A (en) 10-aminoalkyl-9,10-dihydroanthracenes substituted
GR23362B (en) SPECIAL METHOD OF PREPARATION OF SYKOPOLT.
ES123616Y (en) BEACON.

Legal Events

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

Owner name: MONTECATINI

V4 Lapsed because of reaching the maxim lifetime of a patent