CH74443A
(en )
1917-03-01
Process and plant for the concentration of sulfuric acid
FR459092A
(en )
1913-10-25
Process for the concentration of sulfuric acid
FR431006A
(en )
1911-10-30
Process for the manufacture of solutions of nitrogen anhydride in nitrogen acid monohydrate
FR462016A
(en )
1914-01-17
Provision for the concentration of sulfuric acid by preliminary and final concentrations
FR479320A
(en )
1916-03-15
Sulfuric acid concentration process
FR441813A
(en )
1912-08-17
Method and apparatus for the manufacture of sulfuric acid
FR492977A
(en )
1919-07-26
Method and apparatus for the continuous concentration of sulfuric acid
FR502643A
(en )
1920-05-21
New process for the condensation of nitric acid
FR452682A
(en )
1913-05-21
Process for the manufacture of sulfuric acid
FR432873A
(en )
1911-12-18
Sulfuric acid concentration process
FR430145A
(en )
1911-10-09
Process for obtaining sulfuric acid monohydrate and oleum
FR498782A
(en )
1920-01-22
Method and apparatus for the production of picric acid
FR501564A
(en )
1920-04-17
Method and apparatus for the manufacture of sulfuric acid
FR492655A
(en )
1919-07-16
Process for the production of sulfuric acid and especially concentrated acid or oleum and neutral sulfate from sodium bisulfate
FR495474A
(en )
1919-10-09
Sulfuric acid concentration process
FR447106A
(en )
1912-12-23
Method for the concentration of nitric acid
FR488230A
(en )
1918-09-14
Sulfuric acid concentration process
FR530553A
(en )
1921-12-26
Sulfuric acid concentration process
FR461452A
(en )
1913-12-30
Process for the manufacture of nitrogen acid by means of nitrates and sulfuric acid
FR417794A
(en )
1910-11-22
Process for the manufacture of hydrocyanic acid
FR578138A
(en )
1924-09-18
Process and plant for the manufacture of sulfuric acid
FR360634A
(en )
1906-04-27
Process and device for the manufacture and purification of sulfuric acid
CH78423A
(en )
1918-08-01
Process for the manufacture of monochloriacetic acid
FR463859A
(en )
1914-03-06
Method for the concentration of dilute nitric acid
FR488551A
(en )
1918-10-21
Sulfuric acid manufacturing process