CH498811A
(en )
1970-11-15
Process for the production of urea from ammonia and carbon dioxide
CH437230A
(en )
1967-06-15
Process for the production of synthesis gas for ammonia synthesis
AT241496B
(en )
1965-07-26
Process for the production of granular ammonium sulphate nitrate
AT258932B
(en )
1967-12-27
Method and device for the production of urea
AT347966B
(en )
1979-01-25
METHOD FOR PRODUCING UREME FROM AMMONIA AND CARBON DIOXIDE
AT251003B
(en )
1966-12-12
Process for the production of ammonia and sulfur oxides from ammonium sulphate liquors
AT287012B
(en )
1971-01-11
Process for the production of hydrogen cyanide and hydrogen from acetonitrile and ammonia
AT249074B
(en )
1966-09-26
Process for the production of urea from ammonia and carbon dioxide
AT238213B
(en )
1965-01-25
Process for the production of a high-purity, in particular biuret and ammonia-free molten urea
CH351265A
(en )
1961-01-15
Process for separating mixtures of carbon dioxide and ammonia into the components
AT244984B
(en )
1966-02-10
Process for the production of urea from carbon dioxide and ammonia
AT256865B
(en )
1967-09-11
Process for the production of urea
CH357387A
(en )
1961-10-15
Process and apparatus for the production of urea
AT317909B
(en )
1974-09-25
Process for urea production from ammonia and carbon dioxide
CH454115A
(en )
1968-04-15
Process for the production of urea
CH428700A
(en )
1967-01-31
Process for the production of acid amides
CH284406A
(en )
1952-07-31
Process for the production of urea from carbon dioxide and ammonia.
CH414591A
(en )
1966-06-15
Process for the production of urea from NH3 and CO2 and device for carrying out this process
CH433244A
(en )
1967-04-15
Process for the production of urea
AT277738B
(en )
1970-01-12
PROCESS FOR THE MANUFACTURING OF FEED AND FERTILIZERS
CH416584A
(en )
1966-07-15
Process for the production of cyanic acid from urea
CH415654A
(en )
1966-06-30
Process for the production of melamine from ammonia and carbon oxysulphide
AT191425B
(en )
1957-08-26
Process for the production of urea from ammonia and carbon dioxide
AT242160B
(en )
1965-09-10
Process for the production of urea
CH387015A
(en )
1965-01-31
Process for recycling carbon dioxide and ammonia in urea synthesis