Method for producing industrial grade ammonium paramolybdate
The invention discloses a method for producing industrial grade ammonium paramolybdate. The method comprises the following steps of: adding pure water and ammonia water into industrial ammonium molybdate serving as a raw material; heating, stirring and performing ammonia dissolution; cooling and cry...
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Main Authors | , , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
20.07.2011
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Abstract | The invention discloses a method for producing industrial grade ammonium paramolybdate. The method comprises the following steps of: adding pure water and ammonia water into industrial ammonium molybdate serving as a raw material; heating, stirring and performing ammonia dissolution; cooling and crystallizing to separate the ammonium paramolybdate out, wherein the crystallization rate can reach more than 75 percent; and performing solid-liquid separation on crystallization mother liquor and then performing acid precipitation to separate ammonium polymolybdate out, wherein the comprehensive recovery rate of molybdenum can reach more than 99 percent. By the method, the purity of the ammonium paramolybdate can be greatly improved, and the quality of a product can reach a national primary standard; and the method is easy and convenient to operate and has simple equipment and extremely high application value. |
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AbstractList | The invention discloses a method for producing industrial grade ammonium paramolybdate. The method comprises the following steps of: adding pure water and ammonia water into industrial ammonium molybdate serving as a raw material; heating, stirring and performing ammonia dissolution; cooling and crystallizing to separate the ammonium paramolybdate out, wherein the crystallization rate can reach more than 75 percent; and performing solid-liquid separation on crystallization mother liquor and then performing acid precipitation to separate ammonium polymolybdate out, wherein the comprehensive recovery rate of molybdenum can reach more than 99 percent. By the method, the purity of the ammonium paramolybdate can be greatly improved, and the quality of a product can reach a national primary standard; and the method is easy and convenient to operate and has simple equipment and extremely high application value. |
Author | XIA XIAOMEI ZHANG BAO PENG CHUNLI ZHANG JIAFENG SHEN CHAO LI QIAN CHEN HEZHANG |
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Snippet | The invention discloses a method for producing industrial grade ammonium paramolybdate. The method comprises the following steps of: adding pure water and... |
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Title | Method for producing industrial grade ammonium paramolybdate |
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