FR610526A
(en )
1926-09-07
Process for the rapid evaporation to dryness of ammonium nitrate solutions
FR599404A
(en )
1926-01-12
Process for the production of urea from carbonic acid and synthetic ammonia
FR585221A
(en )
1925-02-23
Process for fixing ammoniacal nitrogen and recovering it in the form of fertilizer
FR37623E
(en )
1930-01-08
Process for the production of mixtures of nitrogen and hydrogen suitable for the synthesis of ammonia
FR689041A
(en )
1930-09-01
Process for fixing nitrogen in the form of ammonia
FR707674A
(en )
1931-07-10
Process for extracting ammonia in the form of ammonium sulphate from gases free of sulfuric acid
FR586025A
(en )
1925-03-13
Process for the production of finely crystallized urea
FR603508A
(en )
1926-04-17
Improvements in the production of mixtures of nitrogen and hydrogen for the synthesis of ammonia
FR550512A
(en )
1923-03-12
Process and catalyst for the synthesis of ammonia
FR682838A
(en )
1930-06-03
Process for separating all ammonia contained in gases in the form of ammonium sulfate
FR32056E
(en )
1927-09-09
Process for obtaining metal azides and its application to the production of ammonia
FR594544A
(en )
1925-09-14
Nitrogen fixation process
FR563101A
(en )
1923-11-27
Process and apparatus for the production of ammonium carbonate, cyanuramid and cyanogen dicyandiamide
FR699515A
(en )
1931-02-16
Process for separating precipitates in the form of sulphides, obtained in the de-arsenication of acid liquids, from the latter
FR663449A
(en )
1929-08-21
Process for the recovery and concentration of ammonia and potash
FR643855A
(en )
1928-09-25
Process for the production of mixtures of nitrogen and hydrogen suitable for the synthesis of ammonia
FR609457A
(en )
1926-08-16
Nitrogen fixation process
FR543414A
(en )
1922-09-02
Process for extracting the nitrogen contained in nitrate of lime in fully recoverable form
FR610334A
(en )
1926-09-03
Process for the concentration of ammonium nitrate solutions at relatively low temperatures
FR557060A
(en )
1923-08-02
Advanced process for nitrogen fixation
FR15525E
(en )
1912-07-25
Process for fixing nitrogen in ammoniacal form
FR440217A
(en )
1912-07-05
Process for fixing nitrogen in ammoniacal form
FR680606A
(en )
1930-05-02
Process for the simultaneous production of nitrogenous and magnesium fertilizers
FR718417A
(en )
1932-01-25
Process for the synthesis under pressure of ammonia
FR672261A
(en )
1929-12-26
Process for the production of fertilizers in granular form and product obtained by the application of this process