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GB1273008A
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Nitric acid digestion process for phosphate rock in the presence of potassium sulfate
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US3428422A
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Preparation of phosphoryl fluoride and difluorophosphoric acid
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US3428418A
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Ammonium nitrate stabilization
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US3428421A
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Manufacture of difluorophosphoric acid
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US3459530A
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Production of granular magnesium ammonium phosphate
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US3429659A
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Preparation of phosphoryl fluoride and difluorophosphoric acid from phosphate rock
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US3470175A
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Ureidomethylenehydrotriazinedione
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US3459528A
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Urea condensation product slow release nitrogen fertilizer compounds and the preparation thereof
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US3459529A
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Urea-biuret condensation products as slow release nitrogen fertilizer and the preparation thereof
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US3455651A
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Clarification of wet process phosphoric acid
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US3451595A
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Wheeled vehicle vibratory spreader for granular material
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US3449106A
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Process and apparatus for preparing granular fertilizer from organic materials
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US3442637A
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Granulation of sewage sludge
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US3461043A
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Method and apparatus for continuous monitoring of fluoride effluent
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US3451800A
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Production of granular sewage sludge
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