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The chemical composition, types and content of minerals, microregion quantitative energy spectrum analysis of titanium-bearing minerals, equilibrium estimate of TiO2, occurrence state of titanium-bearing minerals, particle size and dissociation degree of ilmenite in a vanadium-titanium magnetite ore from Panxi region have been investigated. By these means, the reasons for difficulty in this ore dressing were ascertained. The technical index of ilmenite concentrate and the main mineralogical factors affecting the ilmenite dressing effect have been analyzed comprehensively, which may provide a detailed scientific basis for development and utilization of this vanadium-titanium magnetite ore in Panxi region.
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对攀西某钒钛磁铁矿化学组成、矿物种类及含量、含钛矿物能谱微区成分、矿石中TiO2的平衡概算、含钛矿物产出形式、钛铁矿粒度及解离度等进行详细研究,查清了矿石难选的原因,综合分析了钛精矿的技术指标以及影响选钛效果的主要矿物学因素,可为开发利用攀西某矿产资源提供详细的科学依据。
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王利珍(1986—),女,湖南郴州人,硕士,高级工程师,主要从事工艺矿物学研究。E-mail:360296048@qq.com
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王利珍(1986—),女,湖南郴州人,硕士,高级工程师,主要从事工艺矿物学研究。E-mail:360296048@qq.com
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2016(5): 91-94., articleTitle=某钛铁矿的工艺矿物学特征, refAbstract=null)], funds=null, companyList=[AuthorCompany(id=1240648786373046524, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648783302815970, xref=null, ext=[AuthorCompanyExt(id=1240648786381435133, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648783302815970, companyId=1240648786373046524, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=Changsha Research Institute of Mining and Metallurgy Co, Ltd, Changsha 410012, Hunan, China), AuthorCompanyExt(id=1240648786389823742, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648783302815970, companyId=1240648786373046524, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=长沙矿冶研究院有限责任公司,湖南 长沙 410012)])], figs=[ArticleFig(id=1240648788805742960, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648783302815970, language=EN, label=null, caption=null, figureFileSmall=RuinAW0ykZQiQKMznuTSIg==, figureFileBig=JkpZ9tUtlLCn/ubGP7y17A==, tableContent=null), ArticleFig(id=1240648788893823352, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648783302815970, language=CN, label=图1, caption=
粒状钛铁矿, figureFileSmall=RuinAW0ykZQiQKMznuTSIg==, figureFileBig=JkpZ9tUtlLCn/ubGP7y17A==, tableContent=null), ArticleFig(id=1240648790391189898, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648783302815970, language=EN, label=null, caption=null, figureFileSmall=qF/ilK7VKO1DrqBQOS65Lw==, figureFileBig=YP2ebuuDDasURnimV8FBpw==, tableContent=null), ArticleFig(id=1240648790504436119, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648783302815970, language=CN, label=图2, caption=
片状钛铁矿, figureFileSmall=qF/ilK7VKO1DrqBQOS65Lw==, figureFileBig=YP2ebuuDDasURnimV8FBpw==, tableContent=null), ArticleFig(id=1240648790605099423, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648783302815970, language=EN, label=null, caption=null, figureFileSmall=tKuwzrhbu1mL+T64TDgMkA==, figureFileBig=Af+gxQ7HX3qkeNMhpdwO5A==, tableContent=null), ArticleFig(id=1240648790709957029, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648783302815970, language=CN, label=图3, caption=
钛磁铁矿, figureFileSmall=tKuwzrhbu1mL+T64TDgMkA==, figureFileBig=Af+gxQ7HX3qkeNMhpdwO5A==, tableContent=null), ArticleFig(id=1240648790823203245, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648783302815970, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| TFe | FeO | Fe2O3 | TiO2 | V2O5 | Cr2O3 | Co | Ni |
| 22.60 | 15.04 | 15.73 | 8.26 | 0.18 | 0.48 | 0.018 | 0.067 |
| Cu | SiO2 | Al2O3 | CaO | MgO | P | S | 烧失 |
| 0.023 | 28.24 | 4.73 | 8.71 | 13.79 | 0.03 | 0.18 | 4.33 |
), ArticleFig(id=1240648790940643765, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648783302815970, language=CN, label=表1, caption=
矿石化学多元素分析结果(质量分数)
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| TFe | FeO | Fe2O3 | TiO2 | V2O5 | Cr2O3 | Co | Ni |
| 22.60 | 15.04 | 15.73 | 8.26 | 0.18 | 0.48 | 0.018 | 0.067 |
| Cu | SiO2 | Al2O3 | CaO | MgO | P | S | 烧失 |
| 0.023 | 28.24 | 4.73 | 8.71 | 13.79 | 0.03 | 0.18 | 4.33 |
), ArticleFig(id=1240648791053889980, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648783302815970, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 元素 | 物相 | 质量分数/% | 分布率/% |
|---|
| 铁 | 钛磁铁矿中铁 | 15.43 | 68.27 |
| 赤(褐)铁矿中铁 | 0.92 | 4.07 |
| 钛铁矿中铁 | 2.26 | 10.00 |
| 碳酸盐中铁 | 痕量 | 痕量 |
| 硫化物中铁 | 0.13 | 0.58 |
| 硅酸盐中铁 | 3.86 | 17.08 |
| 合计 | 22.60 | 100.00 |
| 钛 | 钛磁铁矿中TiO2 | 3.33 | 40.31 |
| 钛铁矿中TiO2 | 3.58 | 43.34 |
| 脉石中TiO2 | 1.35 | 16.34 |
| 合计 | 8.26 | 100.00 |
), ArticleFig(id=1240648791158747587, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648783302815970, language=CN, label=表2, caption=
矿石中铁和钛的化学物相分析结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 元素 | 物相 | 质量分数/% | 分布率/% |
|---|
| 铁 | 钛磁铁矿中铁 | 15.43 | 68.27 |
| 赤(褐)铁矿中铁 | 0.92 | 4.07 |
| 钛铁矿中铁 | 2.26 | 10.00 |
| 碳酸盐中铁 | 痕量 | 痕量 |
| 硫化物中铁 | 0.13 | 0.58 |
| 硅酸盐中铁 | 3.86 | 17.08 |
| 合计 | 22.60 | 100.00 |
| 钛 | 钛磁铁矿中TiO2 | 3.33 | 40.31 |
| 钛铁矿中TiO2 | 3.58 | 43.34 |
| 脉石中TiO2 | 1.35 | 16.34 |
| 合计 | 8.26 | 100.00 |
), ArticleFig(id=1240648791297159631, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648783302815970, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 钛磁铁矿 | 钛铁矿 | 榍石 | 金属硫化物 | 辉石 | 闪石 | 蛇纹石 | 绿泥石 | 其他 |
|---|
| 26.81 | 6.85 | 1.52 | 0.30 | 37.32 | 6.28 | 7.69 | 8.70 | 4.53 |
), ArticleFig(id=1240648791469126103, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648783302815970, language=CN, label=表3, caption=
矿石主要矿物组成(质量分数)
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| 钛磁铁矿 | 钛铁矿 | 榍石 | 金属硫化物 | 辉石 | 闪石 | 蛇纹石 | 绿泥石 | 其他 |
|---|
| 26.81 | 6.85 | 1.52 | 0.30 | 37.32 | 6.28 | 7.69 | 8.70 | 4.53 |
), ArticleFig(id=1240648791561400800, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648783302815970, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 矿物名称 | TiO2 | Fe | V2O5 | Cr2O3 | MnO | CaO | MgO | Al2O3 | SiO2 |
|---|
| 钛磁铁矿 | 12.49 | 58.94 | 0.65 | 1.74 | 0.33 | 0.08 | 1.57 | 1.48 | 0.25 |
| 钛铁矿 | 51.82 | 32.56 | — | 0.09 | 0.57 | — | 5.61 | — | — |
| 榍石 | 40.78 | 0.96 | — | — | 24.01 | — | 6.42 | 27.55 | — |
| 辉石 | 1.55 | 5.14 | — | — | 24.51 | 14.62 | 4.87 | 47.84 | — |
| 闪石 | 1.78 | 6.57 | — | — | 20.10 | 14.45 | 7.10 | 44.94 | — |
), ArticleFig(id=1240648791653675495, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648783302815970, language=CN, label=表4, caption=
含钛矿物能谱微区成分分析结果(原子分数)
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| 矿物名称 | TiO2 | Fe | V2O5 | Cr2O3 | MnO | CaO | MgO | Al2O3 | SiO2 |
|---|
| 钛磁铁矿 | 12.49 | 58.94 | 0.65 | 1.74 | 0.33 | 0.08 | 1.57 | 1.48 | 0.25 |
| 钛铁矿 | 51.82 | 32.56 | — | 0.09 | 0.57 | — | 5.61 | — | — |
| 榍石 | 40.78 | 0.96 | — | — | 24.01 | — | 6.42 | 27.55 | — |
| 辉石 | 1.55 | 5.14 | — | — | 24.51 | 14.62 | 4.87 | 47.84 | — |
| 闪石 | 1.78 | 6.57 | — | — | 20.10 | 14.45 | 7.10 | 44.94 | — |
), ArticleFig(id=1240648791745950191, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648783302815970, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 矿物名称 | 矿物含量(质量分数)/% | 矿物中TiO2品位/% | TiO2金属量/% | TiO2在各矿物中的分布率/% |
|---|
| 钛磁铁矿 | 26.81 | 12.49 | 3.349 | 40.79 |
| 钛铁矿 | 6.85 | 51.82 | 3.550 | 43.25 |
| 榍石 | 1.52 | 40.78 | 0.620 | 7.55 |
| 辉石 | 37.32 | 1.55 | 0.578 | 7.05 |
| 闪石 | 6.28 | 1.78 | 0.112 | 1.36 |
| 其他 | 21.22 | — | — | — |
| 合计 | 100.00 | 8.209 | 8.209 | 100.00 |
), ArticleFig(id=1240648791842419194, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648783302815970, language=CN, label=表5, caption=
矿石中TiO2的平衡计算结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 矿物名称 | 矿物含量(质量分数)/% | 矿物中TiO2品位/% | TiO2金属量/% | TiO2在各矿物中的分布率/% |
|---|
| 钛磁铁矿 | 26.81 | 12.49 | 3.349 | 40.79 |
| 钛铁矿 | 6.85 | 51.82 | 3.550 | 43.25 |
| 榍石 | 1.52 | 40.78 | 0.620 | 7.55 |
| 辉石 | 37.32 | 1.55 | 0.578 | 7.05 |
| 闪石 | 6.28 | 1.78 | 0.112 | 1.36 |
| 其他 | 21.22 | — | — | — |
| 合计 | 100.00 | 8.209 | 8.209 | 100.00 |
), ArticleFig(id=1240648791934693888, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648783302815970, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 粒级/mm | 块样 | -3 mm破碎样 |
|---|
| 分布率/% | 累计分布率/% | 分布率/% | 累计分布率/% |
|---|
| +0.830 | 4.22 | 4.22 | — | — |
| -0.830+0.420 | 23.17 | 27.39 | 3.78 | 3.78 |
| -0.420+0.105 | 61.21 | 88.60 | 49.63 | 53.41 |
| -0.105+0.075 | 6.45 | 95.05 | 12.94 | 66.35 |
| -0.075+0.038 | 3.37 | 98.42 | 16.90 | 83.25 |
| -0.038+0.020 | 1.51 | 99.93 | 9.25 | 92.50 |
| -0.020 | 0.07 | 100.00 | 7.50 | 100.00 |
), ArticleFig(id=1240648792064717320, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648783302815970, language=CN, label=表6, caption=
原矿中钛铁矿粒度组成分析结果
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| 粒级/mm | 块样 | -3 mm破碎样 |
|---|
| 分布率/% | 累计分布率/% | 分布率/% | 累计分布率/% |
|---|
| +0.830 | 4.22 | 4.22 | — | — |
| -0.830+0.420 | 23.17 | 27.39 | 3.78 | 3.78 |
| -0.420+0.105 | 61.21 | 88.60 | 49.63 | 53.41 |
| -0.105+0.075 | 6.45 | 95.05 | 12.94 | 66.35 |
| -0.075+0.038 | 3.37 | 98.42 | 16.90 | 83.25 |
| -0.038+0.020 | 1.51 | 99.93 | 9.25 | 92.50 |
| -0.020 | 0.07 | 100.00 | 7.50 | 100.00 |
), ArticleFig(id=1240648792190546447, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648783302815970, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 粒级/mm | 不同磨矿细度(mm)下钛铁矿粒级分布率/% |
|---|
| -0.59 | -0.42 | -0.30 | -0.21 | -0.15 | -0.105 | -0.075 |
|---|
| +0.30 | 8.80 | 5.81 | — | — | — | — | — |
| -0.30+0.21 | 10.88 | 8.40 | 4.02 | 2.22 | — | — | — |
| -0.21+0.15 | 12.59 | 10.89 | 4.84 | 4.75 | 3.63 | — | — |
| -0.15+0.075 | 28.29 | 27.93 | 29.71 | 20.54 | 16.37 | 11.75 | 2.24 |
| -0.075+0.038 | 21.40 | 27.67 | 34.09 | 38.40 | 39.28 | 37.17 | 34.39 |
| -0.038+0.020 | 9.52 | 10.63 | 15.55 | 21.18 | 25.26 | 29.67 | 34.63 |
| -0.020 | 8.52 | 8.67 | 11.79 | 12.91 | 15.46 | 21.41 | 28.74 |
), ArticleFig(id=1240648792270238232, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648783302815970, language=CN, label=表7, caption=
不同磨矿细度下原矿粉样中钛铁矿的粒度
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| 粒级/mm | 不同磨矿细度(mm)下钛铁矿粒级分布率/% |
|---|
| -0.59 | -0.42 | -0.30 | -0.21 | -0.15 | -0.105 | -0.075 |
|---|
| +0.30 | 8.80 | 5.81 | — | — | — | — | — |
| -0.30+0.21 | 10.88 | 8.40 | 4.02 | 2.22 | — | — | — |
| -0.21+0.15 | 12.59 | 10.89 | 4.84 | 4.75 | 3.63 | — | — |
| -0.15+0.075 | 28.29 | 27.93 | 29.71 | 20.54 | 16.37 | 11.75 | 2.24 |
| -0.075+0.038 | 21.40 | 27.67 | 34.09 | 38.40 | 39.28 | 37.17 | 34.39 |
| -0.038+0.020 | 9.52 | 10.63 | 15.55 | 21.18 | 25.26 | 29.67 | 34.63 |
| -0.020 | 8.52 | 8.67 | 11.79 | 12.91 | 15.46 | 21.41 | 28.74 |
), ArticleFig(id=1240648792349930016, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648783302815970, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 磨矿细度/mm | 单体/% | 连生体/% | 单体+富连生体/% |
|---|
| >3/4 | 3/4~1/2 | 1/2~1/4 | <1/4 |
|---|
| -0.59 | 27.97 | 46.20 | 12.14 | 7.55 | 6.14 | 74.17 |
| -0.42 | 30.83 | 45.46 | 11.25 | 6.82 | 5.64 | 76.29 |
| -0.30 | 39.62 | 42.74 | 8.58 | 4.99 | 4.07 | 82.36 |
| -0.21 | 49.87 | 33.81 | 8.23 | 4.75 | 3.34 | 83.68 |
| -0.15 | 54.43 | 30.88 | 7.39 | 4.31 | 2.99 | 85.31 |
| -0.105 | 60.93 | 26.14 | 6.95 | 3.73 | 2.25 | 87.07 |
| -0.075 | 67.38 | 21.87 | 6.51 | 2.61 | 1.63 | 89.25 |
), ArticleFig(id=1240648792454787627, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648783302815970, language=CN, label=表8, caption=
不同磨矿细度下钛铁矿的解离度
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| 磨矿细度/mm | 单体/% | 连生体/% | 单体+富连生体/% |
|---|
| >3/4 | 3/4~1/2 | 1/2~1/4 | <1/4 |
|---|
| -0.59 | 27.97 | 46.20 | 12.14 | 7.55 | 6.14 | 74.17 |
| -0.42 | 30.83 | 45.46 | 11.25 | 6.82 | 5.64 | 76.29 |
| -0.30 | 39.62 | 42.74 | 8.58 | 4.99 | 4.07 | 82.36 |
| -0.21 | 49.87 | 33.81 | 8.23 | 4.75 | 3.34 | 83.68 |
| -0.15 | 54.43 | 30.88 | 7.39 | 4.31 | 2.99 | 85.31 |
| -0.105 | 60.93 | 26.14 | 6.95 | 3.73 | 2.25 | 87.07 |
| -0.075 | 67.38 | 21.87 | 6.51 | 2.61 | 1.63 | 89.25 |
), ArticleFig(id=1240648792572228150, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648783302815970, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 磨矿细度/mm | 回收条件 | 产率/% | 品位/% | 回收率/% |
|---|
| -0.59 | 仅回收单体 | 1.75 | 51.82 | 10.06 |
| 回收单体及>3/4连生体 | 5.06 | 47.58 | 26.67 |
| 回收单体及>1/2连生体 | 6.28 | 44.64 | 31.04 |
| 回收单体及>1/4连生体 | 7.54 | 40.45 | 33.78 |
| 回收所有含钛铁矿颗粒 | 10.62 | 30.58 | 35.96 |
| -0.42 | 仅回收单体 | 1.93 | 51.82 | 11.05 |
| 回收单体及>3/4连生体 | 5.18 | 47.75 | 27.35 |
| 回收单体及>1/2连生体 | 6.31 | 45.01 | 31.38 |
| 回收单体及>1/4连生体 | 7.44 | 41.13 | 33.85 |
| 回收所有含钛铁矿颗粒 | 10.27 | 31.58 | 35.85 |
| -0.30 | 仅回收单体 | 2.39 | 51.82 | 13.25 |
| 回收单体及>3/4连生体 | 5.76 | 47.18 | 28.97 |
| 回收单体及>1/2连生体 | 6.18 | 46.11 | 30.41 |
| 回收单体及>1/4连生体 | 6.98 | 43.07 | 32.10 |
| 回收所有含钛铁矿颗粒 | 8.95 | 35.00 | 33.44 |
| -0.21 | 仅回收单体 | 2.98 | 51.82 | 16.25 |
| 回收单体及>3/4连生体 | 5.28 | 48.99 | 27.28 |
| 回收单体及>1/2连生体 | 5.91 | 47.27 | 29.42 |
| 回收单体及>1/4连生体 | 6.82 | 43.84 | 31.53 |
| 回收所有含钛铁矿颗粒 | 8.42 | 36.73 | 32.59 |
| -0.15 | 仅回收单体 | 3.15 | 51.82 | 16.72 |
| 回收单体及>3/4连生体 | 5.20 | 49.27 | 26.20 |
| 回收单体及>1/2连生体 | 5.88 | 47.31 | 28.47 |
| 回收单体及>1/4连生体 | 6.55 | 44.51 | 29.82 |
| 回收所有含钛铁矿颗粒 | 7.93 | 37.84 | 30.71 |
| -0.105 | 仅回收单体 | 3.28 | 51.82 | 16.17 |
| 回收单体及>3/4连生体 | 4.89 | 49.69 | 23.11 |
| 回收单体及>1/2连生体 | 5.49 | 47.80 | 24.96 |
| 回收单体及>1/4连生体 | 6.02 | 45.31 | 25.97 |
| 回收所有含钛铁矿颗粒 | 6.99 | 39.90 | 26.54 |
| -0.075 | 仅回收单体 | 3.29 | 51.82 | 14.70 |
| 回收单体及>3/4连生体 | 4.51 | 50.07 | 19.48 |
| 回收单体及>1/2连生体 | 5.02 | 48.28 | 20.90 |
| 回收单体及>1/4连生体 | 5.25 | 47.02 | 21.31 |
| 回收所有含钛铁矿颗粒 | 5.99 | 42.20 | 21.82 |
), ArticleFig(id=1240648792735806021, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648783302815970, language=CN, label=表9, caption=
钛精矿理想指标预测
, figureFileSmall=null, figureFileBig=null, tableContent=
| 磨矿细度/mm | 回收条件 | 产率/% | 品位/% | 回收率/% |
|---|
| -0.59 | 仅回收单体 | 1.75 | 51.82 | 10.06 |
| 回收单体及>3/4连生体 | 5.06 | 47.58 | 26.67 |
| 回收单体及>1/2连生体 | 6.28 | 44.64 | 31.04 |
| 回收单体及>1/4连生体 | 7.54 | 40.45 | 33.78 |
| 回收所有含钛铁矿颗粒 | 10.62 | 30.58 | 35.96 |
| -0.42 | 仅回收单体 | 1.93 | 51.82 | 11.05 |
| 回收单体及>3/4连生体 | 5.18 | 47.75 | 27.35 |
| 回收单体及>1/2连生体 | 6.31 | 45.01 | 31.38 |
| 回收单体及>1/4连生体 | 7.44 | 41.13 | 33.85 |
| 回收所有含钛铁矿颗粒 | 10.27 | 31.58 | 35.85 |
| -0.30 | 仅回收单体 | 2.39 | 51.82 | 13.25 |
| 回收单体及>3/4连生体 | 5.76 | 47.18 | 28.97 |
| 回收单体及>1/2连生体 | 6.18 | 46.11 | 30.41 |
| 回收单体及>1/4连生体 | 6.98 | 43.07 | 32.10 |
| 回收所有含钛铁矿颗粒 | 8.95 | 35.00 | 33.44 |
| -0.21 | 仅回收单体 | 2.98 | 51.82 | 16.25 |
| 回收单体及>3/4连生体 | 5.28 | 48.99 | 27.28 |
| 回收单体及>1/2连生体 | 5.91 | 47.27 | 29.42 |
| 回收单体及>1/4连生体 | 6.82 | 43.84 | 31.53 |
| 回收所有含钛铁矿颗粒 | 8.42 | 36.73 | 32.59 |
| -0.15 | 仅回收单体 | 3.15 | 51.82 | 16.72 |
| 回收单体及>3/4连生体 | 5.20 | 49.27 | 26.20 |
| 回收单体及>1/2连生体 | 5.88 | 47.31 | 28.47 |
| 回收单体及>1/4连生体 | 6.55 | 44.51 | 29.82 |
| 回收所有含钛铁矿颗粒 | 7.93 | 37.84 | 30.71 |
| -0.105 | 仅回收单体 | 3.28 | 51.82 | 16.17 |
| 回收单体及>3/4连生体 | 4.89 | 49.69 | 23.11 |
| 回收单体及>1/2连生体 | 5.49 | 47.80 | 24.96 |
| 回收单体及>1/4连生体 | 6.02 | 45.31 | 25.97 |
| 回收所有含钛铁矿颗粒 | 6.99 | 39.90 | 26.54 |
| -0.075 | 仅回收单体 | 3.29 | 51.82 | 14.70 |
| 回收单体及>3/4连生体 | 4.51 | 50.07 | 19.48 |
| 回收单体及>1/2连生体 | 5.02 | 48.28 | 20.90 |
| 回收单体及>1/4连生体 | 5.25 | 47.02 | 21.31 |
| 回收所有含钛铁矿颗粒 | 5.99 | 42.20 | 21.82 |
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