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US920601A
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Process of making metal sulfates.
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Improved Manufacture of Metal Sulphates from Metal Sulphides.
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Treatment of sulphide ores
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Improvements in Producing Metal Sulphates or other Salts from Metal Sulphides and Sulphide Ores Containing Iron.
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Process of obtaining metal sulfates from mattes.
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Improved Process for Obtaining Metal Sulphates from Mattes.
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Process for Obtaining Ferric Sulphate and Metal Sulphates from Iron Pyrites and other Sulphide Ores.
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Process of making metallic sulfates.
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A Process for the Combustion of Liquid Hydrocarbons.
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