| 第 33 卷第 6 期 |  | Vol. 33 No. 6 | | 2003 年 12 月 | Dec 2003 |
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所屬欄目：其它
軟錳礦浸出制備軟磁鐵氧體用碳酸錳的研究 |
| 楊幼平; 黃可龍; 桑商斌(中南大學(xué)化學(xué)化工學(xué)院; 湖南長(cháng)沙) |
| 摘 要：研究了以低品位軟錳礦石為原料,配入植物粉料,用硫酸直接浸出軟錳礦制備軟磁鐵氧體用碳酸錳的新工藝方法。探討了軟錳礦直接酸浸、含錳浸出液凈化除雜、錳凈化液碳化結晶等工藝條件。所制備的產(chǎn)品經(jīng)X 射線(xiàn)衍射、粒度分析及化學(xué)成分分析等測試,結果表明,產(chǎn)品質(zhì)量達到GB10503 89Ⅰ型品的要求。在優(yōu)惠工藝條件下,錳的回收率達90%以上。 |
| 關(guān)鍵詞：軟錳礦; 碳酸錳; 浸出 |
| 中圖分類(lèi)號：TQ137.12 文獻標識碼：A 文章編號：1009-9212(2003)06-0051-02 |
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| The Preparation of Manganese Carbonate from the Pyrolusite Ore |
| YANG You ping; etc （College of Chemistry and Chemical Engineering; Central South University; Changsha Hunan 410083; China） |
| Abstract：The preparation of manganese carbonate from the lean pyrolusite ore, by using plant dust and leaching method with sulphuric acid, was investigated. The raw material is soft mangnetic ferrite. The technical approach of acidic leaching of pyrolusite ore, purifying of manganese leaching solution, and crystallizing of manganese carbonate from purified manganese solution was studied. The product was characterized by XRD, grain size distribution analysis, and elements analysis. The results show that the quanitity... |
| Key words：pyrolusite; manganese carbonate; leaching |
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收稿日期：2003-05-30
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