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US2848493A
(en)
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Process for synthesis of urea
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CN102099295A
(zh)
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抗结块盐组合物及其制备方法与用途
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BE457685A
(instruction)
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US4228144A
(en)
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Process for the preparation of anhydrous magnesium chloride having a high degree of purity
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US4406869A
(en)
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Process for producing anhydrous sodium carbonate crystal
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PL132177B1
(en)
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Method of manufacture of urea
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CH289681A
(fr)
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Procédé de préparation de carbonate de guanidine.
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EP0494933A1
(en)
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Tetrathiocarbonate process
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US1186367A
(en)
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Process of fixation of nitrogen.
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US1573732A
(en)
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Method of making calcium cyanide and product thereof
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US5993771A
(en)
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Tetrathiocarbonate continuous process
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US2231898A
(en)
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Recovery of acids
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US1295262A
(en)
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Process of producing ammonia from alkali cyanid.
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CH254244A
(fr)
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Procédé pour la fabrication d'engrais complexes, granulés.
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US1200334A
(en)
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Process for the production of nitric acid from nitrous gases.
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BE426745A
(instruction)
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Grove, Jr et al.
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Reaction of Chlorinated Urea Products with Ammonia and Ethylamine |
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BE404674A
(instruction)
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CH266092A
(fr)
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Procédé de préparation de sels de guanidine.
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BE500312A
(instruction)
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BE434943A
(instruction)
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BE350949A
(instruction)
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CH205886A
(fr)
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Procédé de fabrication de nitrate de sodium avec production concomitante de chlore.
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BE403304A
(instruction)
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JPS5879805A
(ja)
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亜二チオン酸塩の製造方法
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