AT375916B - Verfahren zur behandlung von harnstoffloesungen - Google Patents

Verfahren zur behandlung von harnstoffloesungen

Info

Publication number
AT375916B
AT375916B AT0507479A AT507479A AT375916B AT 375916 B AT375916 B AT 375916B AT 0507479 A AT0507479 A AT 0507479A AT 507479 A AT507479 A AT 507479A AT 375916 B AT375916 B AT 375916B
Authority
AT
Austria
Prior art keywords
urea solutions
treating urea
treating
solutions
urea
Prior art date
Application number
AT0507479A
Other languages
English (en)
Other versions
ATA507479A (de
Inventor
Primo Pastormerlo
Original Assignee
Stamicarbon
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 Stamicarbon filed Critical Stamicarbon
Publication of ATA507479A publication Critical patent/ATA507479A/de
Application granted granted Critical
Publication of AT375916B publication Critical patent/AT375916B/de

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F02F1/4264—Shape or arrangement of intake or exhaust channels in cylinder heads of exhaust channels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J10/00—Chemical processes in general for reacting liquid with gaseous media other than in the presence of solid particles, or apparatus specially adapted therefor
    • B01J10/005—Chemical processes in general for reacting liquid with gaseous media other than in the presence of solid particles, or apparatus specially adapted therefor carried out at high temperatures in the presence of a molten material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
    • B01J3/04—Pressure vessels, e.g. autoclaves
    • B01J3/044—Pressure vessels, e.g. autoclaves in the form of a loop
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
AT0507479A 1978-07-24 1979-07-23 Verfahren zur behandlung von harnstoffloesungen AT375916B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT26010/78A IT1174366B (it) 1978-07-24 1978-07-24 Decompositore di carbammato per produzione industriale di urea

Publications (2)

Publication Number Publication Date
ATA507479A ATA507479A (de) 1984-02-15
AT375916B true AT375916B (de) 1984-09-25

Family

ID=11218402

Family Applications (1)

Application Number Title Priority Date Filing Date
AT0507479A AT375916B (de) 1978-07-24 1979-07-23 Verfahren zur behandlung von harnstoffloesungen

Country Status (13)

Country Link
US (2) US4269997A (de)
JP (1) JPS60339B2 (de)
AT (1) AT375916B (de)
CA (1) CA1127663A (de)
DE (1) DE2929998A1 (de)
ES (1) ES482756A1 (de)
FR (1) FR2434145A1 (de)
GB (2) GB2028311B (de)
IN (1) IN151776B (de)
IT (1) IT1174366B (de)
MX (1) MX151584A (de)
NL (1) NL7905726A (de)
SU (1) SU1085506A3 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5746954A (en) * 1980-09-05 1982-03-17 Mitsui Toatsu Chem Inc Synthesis of urea
NL8102391A (nl) * 1981-05-15 1982-12-01 Unie Van Kunstmestfab Bv Werkwijze voor het winnen van waardevolle bestanddelen uit de afvalstromen verkregen bij de ureumbereiding.
IT1211125B (it) * 1981-10-16 1989-09-29 Ortu Francesco Composti azotati. processo per la preparazione di
EP0096151B1 (de) * 1982-06-03 1986-07-23 Montedison S.p.A. Verfahren zur Verhinderung der Korrosion von Abstreifern in Anlagen zur Herstellung von Harnstoff
US4597946A (en) * 1985-04-30 1986-07-01 Uop Inc. Vertical tube reactor with serial downward flow through a plurality of sets of particulate containing tubes
US4788108A (en) * 1987-06-15 1988-11-29 Ppg Industries, Inc. Ultraviolet light curable compositions based on iminated unsaturated polyesters for application to porous substrates
CH679485A5 (de) * 1989-12-29 1992-02-28 Ammonia Casale Sa
DE69722606T2 (de) * 1997-06-26 2004-04-29 Urea Casale S.A. Verfahren zur Verminderung der Emissionen von freiem Restammoniak aus einer Ureumproduktionsanlage
EP3219703A1 (de) * 2016-03-17 2017-09-20 Casale SA Kombinierte vorrichtung für die synthese von harnstoff

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2345424A (en) * 1942-04-28 1944-03-28 Alfred G Pfeifer Combination gauge
DE1042570B (de) * 1953-10-23 1958-11-06 Toyo Koatsu Ind Inc Verfahren zur Wiedergewinnung und Wiederverwendung von nicht umgesetztem Ammoniak und Kohlendioxyd bei der mit ueber-schuessigem Ammoniak ausgefuehrten Harnstoffsynthese
NL101446C (de) * 1960-04-08
IL23001A (en) * 1964-02-17 1968-09-26 Allied Chem Method for decomposing ammonium carbamates
NL145541B (nl) * 1964-02-17 1975-04-15 Allied Chem Werkwijze voor het ontleden van ammoniumcarbamaat.
US3984469A (en) * 1969-10-16 1976-10-05 Snam Progetti S.P.A. Process for the production of urea
US3779711A (en) * 1971-07-19 1973-12-18 V Gryaznov Catalytic reactor designed for carrying out conjugate chemical reactions
NL172539C (nl) * 1972-06-12 1983-09-16 Unie Van Kunstmestfab Bv Werkwijze voor de bereiding van ureum.
US4036878A (en) * 1972-06-12 1977-07-19 Unie Van Kunstmestfabrieken, B.V. Process for preparing urea
NL172058C (nl) * 1972-06-12 1983-07-01 Unie Van Kunstmestfab Bv Werkwijze voor de bereiding van ureum.
JPS5040529A (de) * 1973-04-09 1975-04-14
JPS514971A (ja) * 1974-06-10 1976-01-16 Hitachi Ltd Handotaisochihifukuyogarasu
FR2359083A1 (fr) * 1976-07-23 1978-02-17 Saint Gobain Perfectionnement a la fabrication de verre plat
US4097544A (en) * 1977-04-25 1978-06-27 Standard Oil Company System for steam-cracking hydrocarbons and transfer-line exchanger therefor
NL174548C (nl) * 1977-05-05 1988-05-16 Montedison Spa Werkwijze voor het bereiden van ureum door reaktie van ammoniak en kooldioxyde.
US4230669A (en) * 1978-07-17 1980-10-28 Pullman Incorporated Radial ammonia converter

Also Published As

Publication number Publication date
NL7905726A (nl) 1980-01-28
IN151776B (de) 1983-07-30
DE2929998A1 (de) 1980-02-07
US4308234A (en) 1981-12-29
JPS5522674A (en) 1980-02-18
GB2109257B (en) 1983-09-28
CA1127663A (en) 1982-07-13
US4269997A (en) 1981-05-26
SU1085506A3 (ru) 1984-04-07
JPS60339B2 (ja) 1985-01-07
GB2028311B (en) 1983-02-09
ATA507479A (de) 1984-02-15
FR2434145A1 (fr) 1980-03-21
IT7826010A0 (it) 1978-07-24
FR2434145B1 (de) 1984-11-30
ES482756A1 (es) 1980-04-16
GB2028311A (en) 1980-03-05
GB2109257A (en) 1983-06-02
IT1174366B (it) 1987-07-01
MX151584A (es) 1984-12-21

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee