FR599404A
(en )
1926-01-12
Process for the production of urea from carbonic acid and synthetic ammonia
FR662569A
(en )
1929-08-08
Process for the production of hydrocyanic acid
FR692542A
(en )
1930-11-06
Process for the production of hydrocyanic acid
FR713261A
(en )
1931-10-24
Process for the preparation of acrylic acid
FR715290A
(en )
1931-11-28
Process for the separation of carbonic acid and ammonia
FR36389E
(en )
1930-05-10
Process for the production of solid carbonic acid
FR710646A
(en )
1931-08-27
Process and device for the purification of carbonic acid from fermentation
FR846559A
(en )
1939-09-20
Process for the dehydration of mixtures of carbonic acid and ammonia
FR712221A
(en )
1931-09-28
Process for the preparation of 1-aminoanthraquinone-2-sulfonic acid and its salts
FR721457A
(en )
1932-03-03
Process for purification and improvement of air
FR644691A
(en )
1928-10-12
Method and device for the concentration of nitrogen acid
FR37923E
(en )
1931-02-07
Process for the production of aliphatic and cyclic primary amines
FR826305A
(en )
1938-03-29
Process for the dehydration of mixtures of carbonic acid and ammonia
FR705580A
(en )
1931-06-10
Method and apparatus for the production of hydrocyanic acid
FR684430A
(en )
1930-06-25
Process for the separation of mixtures of sulfuric acid and nitrogen acid
FR716839A
(en )
1931-12-28
Process for the production of nitric acid in high concentration
FR715932A
(en )
1931-12-11
Process for the concentration of aliphatic acid solutions
FR720770A
(en )
1932-02-24
Method and device for the concentration of nitric acid
FR704021A
(en )
1931-05-09
Air purification and purification process
FR678422A
(en )
1930-03-24
Process for preparing esters and amides of 2.3-aminonaphthoic acid
FR715052A
(en )
1931-11-25
Process for the production of prussic acid and its salts
FR720609A
(en )
1932-02-22
Process relating to the preparation and transformation of ammonia
FR701424A
(en )
1931-03-16
Improved process and apparatus for the production of phosphoric acid and calcium cyanamide
FR720052A
(en )
1932-02-15
Formic acid concentration process
FR736174A
(en )
1932-11-21
Process for the preparation of arylguanidines and substituted arylguanidines