FR662569A
(en )
1929-08-08
Process for the production of hydrocyanic acid
FR692542A
(en )
1930-11-06
Process for the production of hydrocyanic acid
FR672846A
(en )
1930-01-07
Process for making phosphoric acid and products containing phosphoric acid
FR610986A
(en )
1926-09-17
Process of increasing the production and phosphoric acid content of thomas slag
FR642057A
(en )
1928-08-21
Process for the production of solid carbonic acid
FR610520A
(en )
1926-09-07
Process for the manufacture of phosphorus, phosphorus pentoxide and phosphoric acid
FR585962A
(en )
1925-03-12
Process for preparing the symmetrical urea of sodium metaaminobenzoyl metaaminomethylbenzoyl-1-naphthylamino-4-6-8-trisulfonate
FR624438A
(en )
1927-07-18
Process for the production of hydrogen and phosphoric anhydride or phosphoric acid
FR647515A
(en )
1928-11-26
Process for the production of lactic acid and its derivatives
FR712221A
(en )
1931-09-28
Process for the preparation of 1-aminoanthraquinone-2-sulfonic acid and its salts
FR592379A
(en )
1925-08-01
Process for the preparation of phosphorus, phosphoric anhydride and phosphoric acid
FR595133A
(en )
1925-09-26
Process for the disintegration of materials containing insoluble phosphoric acid
FR621625A
(en )
1927-05-14
Process for the production of concentrated phosphoric acid
FR701424A
(en )
1931-03-16
Improved process and apparatus for the production of phosphoric acid and calcium cyanamide
FR627671A
(en )
1927-10-10
Intensive production process of sulfuric acid
FR640748A
(en )
1928-07-20
Process for the preparation of 1-methyl-2.5.6-trichloro-3-aminobenzene-4-sulfonic acid
FR617953A
(en )
1927-03-01
Process for the production of hydrocyanic acid
FR702678A
(en )
1931-04-14
Process for the preparation of 1.4.5.8-naphthalene-tetracarboxylic acid and its substitutes
FR695962A
(en )
1930-12-24
Process for the production of alumina and phosphorus, or phosphoric acid
FR672847A
(en )
1930-01-07
Process for the manufacture of phosphoric acid and products containing phosphoric acid
FR602395A
(en )
1926-03-17
Process for preparing the chlorosulfacetic acid monochloride of formulëso3h-chcl-cocl
FR701545A
(en )
1931-03-17
Process for the recovery of phosphorus and phosphoric acid
FR625784A
(en )
1927-08-19
Process for the preparation of 2-oxy-3-bromo-5-pyridinarsinic acid
FR576392A
(en )
1924-08-20
Process for the production of hydrocyanic acid
FR33225E
(en )
1928-08-20
Process for the production of hydrocyanic acid