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GB484037A
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Method of producing dicalcium phosphate and calcium nitrate solution
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DE636211C
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Separation of fluorine and aluminum from solutions obtained by digesting phosphate with acids
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GB370706A
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Improved method of leaching phosphate rock
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GB385280A
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Method of producing soluble phosphates in solid state
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GB356627A
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Method of leaching phosphate rock
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GB357041A
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Method of producing concentrated phosphoric acid
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DE564133C
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Process for processing rock phosphate digestion solutions
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DE610786C
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Process for the continuous processing of calcium sulfate and ammonium carbonate into ammonium sulfate
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GB366547A
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Process of leaching phosphate rock
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GB352814A
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A process for producing ammonium phosphate
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GB348970A
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Method of producing diammonium phosphate
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GB357580A
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Method of leaching phosphate rock
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DE569733C
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Process for the digestion of rock phosphate
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GB338079A
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Method of leaching phosphate rock
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DE571496C
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Process for the digestion of rock phosphates
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GB343701A
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Method of treating solutions obtained in leaching phosphate rock with nitric acid and ammonium sulphate
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