FR748336A
(en )
1933-07-01
Process for the manufacture of highly concentrated nitrogen acid
FR697884A
(en )
1931-01-23
Method and apparatus for the continuous manufacture of highly concentrated sulfuric acid
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(en )
1931-10-24
Process for the preparation of acrylic acid
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(en )
1926-03-20
Method and apparatus for the manufacture of sulfuric acid
FR672767A
(en )
1930-01-07
Method and apparatus for the manufacture of solid carbonic acid
FR716839A
(en )
1931-12-28
Process for the production of nitric acid in high concentration
FR709662A
(en )
1931-08-12
Electrolytic method and apparatus for the purification of acetic acid solutions and the like
FR656108A
(en )
1929-04-26
Method and apparatus for the concentration of nitric acid
FR642361A
(en )
1928-08-28
Process and apparatus for the catalytic manufacture of sulfuric acid
FR705580A
(en )
1931-06-10
Method and apparatus for the production of hydrocyanic acid
FR728242A
(en )
1932-07-02
Apparatus for the manufacture of sulfuric acid
FR721763A
(en )
1932-03-08
Process for the production of maleic acid and anhydride
FR628062A
(en )
1927-10-18
Process and apparatus for the manufacture of hydrofluoric acid
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(en )
1931-07-15
Process for the preparation of acetic acid
FR589100A
(en )
1925-05-22
Method and apparatus for the manufacture of chemically pure sulfuric acid
FR722981A
(en )
1932-03-31
Process for the production of sulfuric acid by contact
FR709150A
(en )
1931-08-03
Process for the separation of acetic anhydride and acetic acid
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(en )
1931-08-18
Process for the manufacture of sulfuric acid
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(en )
1931-10-12
Method and apparatus for continuous rectification of acetic acid
FR668720A
(en )
1929-11-06
Process for the production of highly concentrated nitric acid
FR698081A
(en )
1931-01-27
Method and apparatus for the production of bitumen from acid resin by-products
FR719086A
(en )
1932-02-01
Improved process and apparatus for the manufacture of acetylene
FR37923E
(en )
1931-02-07
Process for the production of aliphatic and cyclic primary amines
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(en )
1931-08-18
Apparatus for the production of solidified carbonic acid
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(en )
1923-11-15
Method and apparatus for making sulfuric acid