CH329362A
(en )
1958-04-30
Process for the production of urea
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
CH355614A
(en )
1961-07-15
Process for the production of polyamides from dicarboxylic acids and diamines or from aminocarboxylic acids in continuous operation
CH535280A
(en )
1973-03-31
Process for the production of blocks from liquefied bitumen or sulfur and equipment for carrying out the process
CH459175A
(en )
1968-07-15
Process for the production of urea and device for carrying out the process
CH351265A
(en )
1961-01-15
Process for separating mixtures of carbon dioxide and ammonia into the components
CH352323A
(en )
1961-02-28
Process for the production of urea
AT249074B
(en )
1966-09-26
Process for the production of urea from ammonia and carbon dioxide
CH357387A
(en )
1961-10-15
Process and apparatus for the production of urea
CH414591A
(en )
1966-06-15
Process for the production of urea from NH3 and CO2 and device for carrying out this process
CH284406A
(en )
1952-07-31
Process for the production of urea from carbon dioxide and ammonia.
AT246758B
(en )
1966-05-10
Process for the production of nitrate sulphate fertilizers
AT191425B
(en )
1957-08-26
Process for the production of urea from ammonia and carbon dioxide
AT280316B
(en )
1970-04-10
Process for the production of a low-cyanuric acid-ammonia gas mixture from urea
AT317909B
(en )
1974-09-25
Process for urea production from ammonia and carbon dioxide
CH433244A
(en )
1967-04-15
Process for the production of urea
CH416584A
(en )
1966-07-15
Process for the production of cyanic acid from urea
CH387015A
(en )
1965-01-31
Process for recycling carbon dioxide and ammonia in urea synthesis
CH332741A
(en )
1958-09-30
Process for the production of reinforced bodies from lightweight concrete and device for carrying out the process
AT244984B
(en )
1966-02-10
Process for the production of urea from carbon dioxide and ammonia
AT239811B
(en )
1965-04-26
Process for the production of synthesis gas for the ammonia synthesis
AT175897B
(en )
1953-08-25
Process for reducing corrosion in the production of urea from carbon dioxide and ammonia
AT242160B
(en )
1965-09-10
Process for the production of urea
CH345882A
(en )
1960-04-30
Process for the production of low-biuret urea