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US1799989A
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Manufacture of barium hydroxide
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US1681195A
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Process for producing zirconium compounds
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US1854765A
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Process for obtaining alumina and phosphates
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US1810402A
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Process for obtaining alumina and phosphates
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US1831824A
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Process for obtaining barium aluminate
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US1824298A
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Process for obtaining barium-ortho-silicate or barium-tri-silicate by the decomposition of barium carbonate
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US1823849A
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Process for the manufacture of manures
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US1696975A
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Process for preparing fertilizer
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US1673985A
|
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Process of purifying barium carbonate
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US1849043A
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Production of solid ammonium carbonate
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