GR29902B - Μεθοδος δια την παρασκευην ουριας. - Google Patents
Μεθοδος δια την παρασκευην ουριας.Info
- Publication number
- GR29902B GR29902B GR610129902A GR610129902A GR29902B GR 29902 B GR29902 B GR 29902B GR 610129902 A GR610129902 A GR 610129902A GR 610129902 A GR610129902 A GR 610129902A GR 29902 B GR29902 B GR 29902B
- Authority
- GR
- Greece
- Prior art keywords
- melt
- preparation
- urine
- expelled
- pressure
- Prior art date
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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
έθοδος για την παρασκευήν ουρίας καθ' ήν ΝΗ3 και CΟ2 αντιδρώσιν εντός αυτοκαύστου υπό υψωμένην θερμοκρασίας και πίεσιν πρός ληψιν ενός ουριακού τήματος περιέχοντος καρβαμιδικόν αμμώνιον και το καρβαμιδικόν αμμώνιον απελαυνεται έκ του ρηθέντος τμήατμος δι' αποσυνθέσεως του ρηθέντςο καρβαμιδικού άλατος και εκδιώξεως της NH3 και CO2 έκ του τήγματος,την βελτίωσιν ήτις περιλαμβάνει αφαίρεσιν του ρηθέντος καρβαμιδικου άλατςο έκ του ρηθέντος τήγματοςδιά κατεργασίας του τήγματος μετά CO2 υπό μίαν πίεσιν τουλάχιστιον 10 ατμοσφαιρών οπότε ΝΗ3 και CO2εκδιώκονται έκ του ρηθέντος τήγματος και επανέρχονται τα ούτω εκδιωχθέντα ΝΗ3 και CO2 είς το ρηθέν αυτόκαυστον διά περαιτέρω αντίδρασιν.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL250349 | 1960-04-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
GR29902B true GR29902B (el) | 1961-04-05 |
Family
ID=19752273
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GR610129902A GR29902B (el) | 1960-04-08 | 1961-04-05 | Μεθοδος δια την παρασκευην ουριας. |
Country Status (11)
Country | Link |
---|---|
US (1) | US3356723A (el) |
BE (1) | BE602219A (el) |
CH (1) | CH411833A (el) |
DE (1) | DE1166769B (el) |
ES (1) | ES266395A1 (el) |
FR (1) | FR1285786A (el) |
GB (1) | GB952764A (el) |
GR (1) | GR29902B (el) |
MY (1) | MY6700126A (el) |
NL (2) | NL101446C (el) |
OA (1) | OA01009A (el) |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3406201A (en) * | 1965-06-18 | 1968-10-15 | Exxon Research Engineering Co | Urea synthesis |
US3954861A (en) * | 1968-02-05 | 1976-05-04 | Snamprogetti S.P.A | Process for producing urea |
US3876696A (en) * | 1968-09-03 | 1975-04-08 | Snam Progetti | Process for the production of urea having a low carbamate content |
US4092358A (en) * | 1968-09-03 | 1978-05-30 | Snamprogetti S.P.A. | Process for the production of urea having a low carbamate content |
US3686305A (en) * | 1969-02-19 | 1972-08-22 | Mitsui Toatsu Chemicals | Method for synthesizing urea |
US4154760A (en) * | 1969-06-11 | 1979-05-15 | Mitsui Toatsu Chemicals, Inc. | Process for controlling the temperature during urea synthesis |
ES379855A1 (es) * | 1969-06-11 | 1973-02-16 | Titsui Toatsu Chemicals Inc | Procedimiento para sintetizar urea de dioxido de carbono y amoniaco. |
BE787832A (fr) * | 1971-09-02 | 1973-02-22 | Stamicarbon | Procede pour la preparation d'uree |
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. |
NL7307036A (el) * | 1973-05-21 | 1974-11-25 | ||
CA1017535A (en) * | 1974-03-29 | 1977-09-20 | Charles Vydra | Method and apparatus for the continuous condensation of a gaseous mixture of ammonia, carbon dioxide and water vapour |
US4088686A (en) * | 1976-01-21 | 1978-05-09 | Ivo Mavrovic | Urea synthesis with improved heat recovery and conversion |
NO150512C (no) * | 1977-05-05 | 1984-10-31 | Montedison Spa | Fremgangsmaate ved fremstilling av urea. |
NL7713190A (nl) * | 1977-11-30 | 1979-06-01 | Unie Van Kunstmestfab Bv | Werkwijze en inrichting voor het verwijderen van ammoniumcarbamaat uit een ureumsynthese- oplossing. |
IT1174366B (it) * | 1978-07-24 | 1987-07-01 | Ortu Francesco | Decompositore di carbammato per produzione industriale di urea |
JPS5573651A (en) * | 1978-11-30 | 1980-06-03 | Toyo Eng Corp | Preparation of urea |
JPS5811432B2 (ja) * | 1979-10-08 | 1983-03-02 | 三井東圧化学株式会社 | 尿素合成法 |
IT1141030B (it) * | 1980-08-29 | 1986-10-01 | Snam Progetti | Procedimento per la produzione di urea |
JPS5746954A (en) * | 1980-09-05 | 1982-03-17 | Mitsui Toatsu Chem Inc | Synthesis of urea |
IT1163783B (it) * | 1983-07-14 | 1987-04-08 | Montedison Spa | Processo per la produzione di urea con bassi consumi di vapore |
NL187393C (nl) * | 1982-11-26 | 1991-09-16 | V I Kucheryavy T M Bogdanova D | Werkwijze voor het bereiden van ureum. |
NL8400839A (nl) * | 1984-03-16 | 1985-10-16 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van ureum. |
IT1232669B (it) * | 1989-09-15 | 1992-03-02 | Snam Progetti | Procedimento per la produzione di urea con elevato rendimento energetico. |
IT1270577B (it) * | 1993-02-22 | 1997-05-06 | Wladimiro Bizzotto | Reattore melamina ad alta pressione |
IT1274362B (it) * | 1995-02-16 | 1997-07-17 | Snam Progetti | Procedimento ad alta resa per la sintesi dell'urea |
NL1004977C2 (nl) * | 1997-01-13 | 1998-07-15 | Dsm Nv | Methode om de capaciteit van een bestaand ureum proces te verhogen. |
ITMI20110804A1 (it) | 2011-05-10 | 2012-11-11 | Saipem Spa | "processo ad alta resa per la sintesi dell'urea" |
MY177074A (en) * | 2011-10-14 | 2020-09-04 | Stamicarbon | Urea finishing method |
AU2018366077B2 (en) * | 2017-11-10 | 2021-07-08 | Stamicarbon B.V. | Urea production process and plant |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL230353A (el) * | 1958-08-08 | 1900-01-01 |
-
0
- NL NL250349D patent/NL250349A/xx unknown
- NL NL101446D patent/NL101446C/xx active
-
1961
- 1961-04-05 BE BE602219A patent/BE602219A/fr unknown
- 1961-04-05 GR GR610129902A patent/GR29902B/el unknown
- 1961-04-06 FR FR857967A patent/FR1285786A/fr not_active Expired
- 1961-04-06 DE DEST17659A patent/DE1166769B/de active Pending
- 1961-04-06 GB GB12457/61A patent/GB952764A/en not_active Expired
- 1961-04-07 CH CH410561A patent/CH411833A/de unknown
- 1961-04-07 ES ES0266395A patent/ES266395A1/es not_active Expired
-
1964
- 1964-12-29 OA OA51112A patent/OA01009A/xx unknown
-
1966
- 1966-03-04 US US531833A patent/US3356723A/en not_active Expired - Lifetime
-
1967
- 1967-12-31 MY MY1967126A patent/MY6700126A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
MY6700126A (en) | 1967-12-31 |
BE602219A (fr) | 1961-10-05 |
CH411833A (de) | 1966-04-30 |
GB952764A (en) | 1964-03-18 |
NL250349A (el) | |
DE1166769B (de) | 1964-04-02 |
OA01009A (fr) | 1968-08-07 |
NL101446C (el) | |
ES266395A1 (es) | 1961-11-01 |
FR1285786A (fr) | 1962-02-23 |
US3356723A (en) | 1967-12-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GR29902B (el) | Μεθοδος δια την παρασκευην ουριας. | |
OA01202A (fr) | Procédé de préparation de dérivés de l'urée utilisable notamment pour lutter contre les mauvaises herbes. | |
NL7415699A (nl) | Nieuwe n-polyhydroxyalkyl-aminozuren, werkwijze ter bereiding daarvan, alsmede van huidverzor- gings- en huidbeschermingsmiddelen, die deze verbindingen bevatten. | |
CH397943A (de) | Verfahren zur Herstellung von endlosen, voluminösen und stabilisierten Multifilamenten | |
BE606590A (fr) | Procédé pour l'oxydation photochimique de NO en NO2. | |
ES453775A1 (es) | Procedimiento para la preparacion de n,n'-bis-trimetilsili- lurea. | |
FR1295832A (fr) | Procédé de préparation de dérivés peptidiques, notamment d'hydrazides peptidiques | |
BE619290R (fr) | Procédé de récupération de catalyseurs. | |
IT1044595B (it) | Processo per la preparazione di soluzionl acquose concentrate di formaloeide e urea | |
FR1294M (fr) | Procédé de fabrication de n-arylsulfonyl-n'-(2,5-endométhylene-1,2,5,6-tétrahydrobenzyl)-urées. | |
CH375371A (de) | Verfahren zur Herstellung von Acylderivaten des 2-Methyl-5-oxy-8-(B-diäthylamino-äthoxy)-furo-(2',3':6,7)-chromons | |
BR8002788A (pt) | Processo de preparacao de benzoxazolona | |
DK130918B (da) | Fremgangsmåde til prilling af smeltet ammoniumnitrat og/eller urinstof, eventuelt indeholdende ammoniumphosphat, og prillinghoved til anvendelse ved fremgangsmåden. | |
AT241468B (de) | Verfahren zur Herstellung von neuen 1, 4-Bis- {[7'-chlorchinolyl-(4')]-aminoalkyl }-piperazinen | |
IT1043040B (it) | Composti perininici processo per la lord preparazione e lord impego come coloranti | |
FR1534669A (fr) | Procédé et dispositif de décomposition de carbamate d'ammonium notamment résultant de la synthèse de l'urée ainsi que les produits obtenus par le présent procédé ou procédé similaire | |
AT240867B (de) | Verfahren zur Herstellung von beispielsweise als Herbizid verwendbaren, neuen Isothioharnstoffderivaten | |
GR20354B (el) | Παρασκευη ουριας. | |
NL7600851A (nl) | Werkwijze voor het behandelen van kooldioxyde gas bij de synthese van ureum. | |
FR1330134A (fr) | Procédé de tannage avec de l'aldéhyde glutarique notamment pour le tannage d'enveloppes pour saucisses | |
AT299158B (de) | Verfahren zur Herstellung des neuen N<1>-L-Serin-N<2>-(2,3,4-trihydroxybenzyl)-hydrazids sowie dessen Säureadditionssalze | |
CH423703A (de) | Verfahren zur Herstellung von Präparaten in Form stabiler Dispersionen von N,N-Alkylenharnstoffverbindungen | |
FR1335517A (fr) | Procédé de préparation d'amides hétérocycliques, notamment de la 3, 3-bis-(4-nicotinoylamino-phényl)-butane-2-one | |
FR2115552A5 (en) | 1-tert-butoxycarbonyl-4-amino pyridinium chloride - - useful as blocking agent for amines | |
FR1335107A (fr) | 3-c-hydroxyméthyl-3, 5-didésoxy-l-lyxofuranose et ses dérivés et procédé pour les préparer |