Experimental Study and Industrial Application of Single Reverse Flotation of Wangji Collophanite（Ph1）
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摘要:
王集Ph1层胶磷矿原浮选工艺是正反浮选，在生产实践中存在最终尾矿品位偏高，产率和回收率偏低的问题。本文通过实验研究、工艺改造，将原正反浮选工艺改为单一反浮选工艺，生产工艺指标得到改善，回收率提高了9.78个百分点。
Abstract:The former flotation process of Wangji Collophanite（Ph1）is direct-reverse flotation processes. In the production practice, there are some problems such as high grade of final tailings, low yield and recovery rate. In this paper, through test research and technological transformation, the original direct-reverse flotation processes was changed into single reverse flotation process, and the production process index was improved ,the recovery was improved by 9.78 percentages.
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Key words:
- Collophanite /
- Reverse flotation /
- Industrialization
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表 1 矿物多元素分析结果 /%
Table 1. Analysis results of mineral multi-elements
P2O5 MgO Fe2O3 Al2O3 CaO A-I I-L F 22.74 4.48 1.27 1.52 42.11 9.74 15.47 2.03 
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表 2 实验室实验结果
Table 2. Results of laboratory test
产物名称 产率/% 品位/% 回收率/% P2O5 MgO 精矿 67.03 30.66 0.42 87.63 尾矿 32.97 8.79 8.35 11.37 中矿 17.84 25.59 1.04 19.47
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表 3 产品多元素化学分析结果 /%
Table 3. Multi-element chemical analysis results of products
名称 P2O5 MgO Fe2O3 Al2O3 CaO A-I I-L F 原矿 22.74 4.48 1.27 1.52 42.11 9.74 15.47 2.03 精矿 29.57 1.12 1.36 1.63 44.73 11.44 5.83 2.64 尾矿 8.38 11.7 1.13 1.05 35.61 8.72 27.59 0.84
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表 4 正反浮选工艺指标
Table 4. Process indexes of direct-reverse flotation
产品名称 产率/% 品位/% 回收率/% P2O5 MgO P2O5 精矿 59.45 29.88 1.08 79.51 尾矿1 35.16 11.28 5.3 17.75 尾矿2 5.39 11.47 12.75 2.74 原矿 100 22.34 3.18 100
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表 5 单一反浮选工艺指标
Table 5. Process index of single reverse flotation
产品名称 产率/% 品位/% 回收率/% P2O5 MgO P2O5 精矿 69.68 29.13 1.15 89.30 尾矿 30.32 8.02 11.72 10.70 原矿 100 22.73 4.39 100
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表 6 正反浮选和单一反浮选工艺药剂消耗对比
Table 6. Reagents consumption comparison between reverse flotation and single reverse flotation processes
药剂名称 单价/
（元·kg-1）正反浮选 单一反浮选 单耗/
（kg·t-1）成本/
元单耗/
（kg·t-1）成本/
元碳酸钠 1.33 9.28 12.34 -- -- 抑制剂 5 3.65 18.25 -- -- 正浮选捕收剂 4 0.94 3.76 -- -- 反浮选捕收剂 6.2 1.04 6.45 0.94 5.89 硫酸 0.48 39.00 18.72 68.02 26.53 合计 59.52 32.42
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