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高興星期五鐵桿木蟲 (著名寫手)
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[交流]
懸賞翻譯!
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| 針對這一情況,我們提出用碳酸氫銨(NH4HCO3)和氨水(NH3•H2O)對包頭稀土礦濃硫酸焙燒礦進(jìn)行復(fù)分解反應(yīng)處理,處理后的浸液通過蒸發(fā)結(jié)晶加工成(NH4)2SO4產(chǎn)品,濾餅進(jìn)行酸浸,除雜后,根據(jù)鈣和稀土元素沉淀的pH值不同,采用分步沉淀的方法分離鈣和稀土元素,此時鈣以氯化鈣的形式存在,稀土以稀土氫氧化物的形式存在,稀土氫氧化物加鹽酸溶解后可以轉(zhuǎn)型為稀土氯化物溶液,這樣就可以實現(xiàn)鈣和稀土元素的回收。此外,實驗過程所回收的水可以循環(huán)利用。 |

木蟲 (正式寫手)
foreverhappy
| In view of this situation, we propose to use ammonium bicarbonate (NH4HCO3) and ammonia (NH3 • H2O) on the Baotou rare earth mineral ore for sulfuric acid roasting metathesis treatment, the treated extract by evaporation and crystallization process into the (NH4) 2SO4 products cake for acid leaching, impurity removal, based on the precipitation of calcium and rare earth elements of different pH values, by fractional precipitation of calcium and rare earth elements were isolated, then the form of calcium to calcium, rare earth rare earth hydroxide the form of objects, the rare earth hydroxide dissolved by hydrochloric acid and rare earth chloride solution can be transformed so that it can achieve the recovery of calcium and rare earth elements. In addition, the experimental process of water recycling can be reused. |

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