|
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
|
|
NL172058C
(nl)
*
|
1972-06-12 |
1983-07-01 |
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
|
|
NL7307036A
(es)
*
|
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
|
|
SE446978B
(sv)
*
|
1977-05-05 |
1986-10-20 |
Montedison Spa |
Isobariskt dubbelatercirkulationsforfarande for syntetisering av urea under bildning av ammoniumkarbamat som mellanprodukt
|
|
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"
|
|
JP5934370B2
(ja)
*
|
2011-10-14 |
2016-06-15 |
スタミカーボン・ベー・フェー |
尿素仕上げ法
|
|
EP3707121B1
(en)
*
|
2017-11-10 |
2021-04-21 |
Stamicarbon B.V. |
Urea production process and plant
|