GB273832A
(de )
1900-01-01
US2031939A
(en )
1936-02-25
Method of treating hydrocarbons
US1231123A
(en )
1917-06-26
Production of chlorinated hydrocarbons.
US1689599A
(en )
1928-10-30
Peroxide of hydrocarbon and process of making the same
US962841A
(en )
1910-06-28
Treatment of mineral and vegetable oils.
US1957794A
(en )
1934-05-08
Treatment of hydrocarbon oils
US1990213A
(en )
1935-02-05
Removal of substances forming resins from benzines
US2205410A
(en )
1940-06-25
Process for treating hydrocarbon oils
US1224485A
(en )
1917-05-01
Process of chlorinating and products thereof.
US1051051A
(en )
1913-01-21
Process of regaining alcohol from air passed through fermenting-vats or the like.
US2283067A
(en )
1942-05-12
Process for refining sulphate wood turpentine
US1579607A
(en )
1926-04-06
Treatment of waste products resulting from acid treatment of petroleum oil
US813088A
(en )
1906-02-20
Process of refining turpentine.
US1956592A
(en )
1934-05-01
Art of treating petroleum sludges
US1893774A
(en )
1933-01-10
Process of manufacturing lubricating oil
US1989330A
(en )
1935-01-29
Process for clarifying and improving the color of hydrocarbon oils
US1971748A
(en )
1934-08-28
Pyrolysis of hydrocarbons
US1745692A
(en )
1930-02-04
Process of treating acid sludge and fuel product obtained therefrom
US604181A
(en )
1898-05-17
George walker
US2060281A
(en )
1936-11-10
Process for breaking petroleum emulsions
US1572902A
(en )
1926-02-16
Turpentine substitute and process of manufacturing
US1487456A
(en )
1924-03-18
Process of distilling materials
US547329A
(en )
1895-10-01
Process of refining lima oil
US1683288A
(en )
1928-09-04
Art of improving mineral oils
US1847409A
(en )
1932-03-01
Process for treating petroleum oils