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As for a zinc concentrate collected from mineral processing of a lead-zinc ore, an experimental study was carried out to reduce the carbon content therein. With soluble starch as the carbon depressant, a concentrate with Zn grade of 48.71%, carbon content of 0.86% and Zn recovery of 90.28% was obtained from a closed-circuit test. Compared with the on-site indicators, both the Zn grade and recovery of concentrate are increased by using this new process, while the carbon content therein is reduced to less than 1%, showing a remarkable carbon-reduction effect.
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针对某复杂铅锌矿选矿所得锌精矿含碳量高的问题,进行了锌精矿降碳试验。采用可溶性淀粉为碳抑制剂,闭路试验获得了锌品位48.71%、含碳0.86%、锌回收率90.28%的锌精矿;与原工艺指标相比,在提高锌精矿品位及回收率的同时,碳含量降至1%以下,降碳效果显著。
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, authorsList=梁治安)}, authors=[Author(id=1241327496436700040, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241321981996487560, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=zhian.liang@zijinmining.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1241327496545751958, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241321981996487560, authorId=1241327496436700040, language=EN, stringName=Zhian LIANG, firstName=Zhian, middleName=null, lastName=LIANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, address=
1.Kunming University of Science and Technology, Kunming 650504, Yunnan, China
2.Xiamen Zijin Mining & Metallurgy Technology Co Ltd, Xiamen 361101, Fujian, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1241327496667386789, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241321981996487560, authorId=1241327496436700040, language=CN, stringName=梁治安, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, address=
1.昆明理工大学,云南 昆明 650504
2.厦门紫金矿冶技术有限公司,福建 厦门 361101, bio={"content":"
梁治安(1987—),男,江西吉安人,硕士,高级工程师,主要研究方向为矿产资源综合利用。E-mail:zhian.liang@zijinmining.com
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梁治安(1987—),男,江西吉安人,硕士,高级工程师,主要研究方向为矿产资源综合利用。E-mail:zhian.liang@zijinmining.com
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| Pb | Zn | Cu | TS | S2- |
| 0.22 | 2.01 | 0.021 | 14.13 | 13.81 |
| TFe | SiO2 | TC | 有机碳 | As |
| 18.01 | 42.38 | 4.85 | 3.93 | <0.01 |
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原矿化学多元素分析结果(质量分数)
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| Pb | Zn | Cu | TS | S2- |
| 0.22 | 2.01 | 0.021 | 14.13 | 13.81 |
| TFe | SiO2 | TC | 有机碳 | As |
| 18.01 | 42.38 | 4.85 | 3.93 | <0.01 |
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| 黄铁矿 | 磁黄铁矿 | 黄铜矿 | 闪锌矿 | 异极矿 |
| 21.44 | 15.89 | 0.07 | 4.22 | <0.01 |
| 石膏 | 石英 | 长石 | 白云母 | 黑云母 |
| 1.48 | 15.72 | 5.19 | 6.46 | 4.56 |
| 方铅矿 | 毒砂 | 砷黝铜矿 | 磁铁矿 | 菱铁矿 |
| 0.33 | 0.04 | <0.01 | 0.4 | 11.05 |
| 绿泥石 | 阳起石 | 白云石 | 磷灰石 | 有机碳 |
| 1.31 | 0.66 | 4.42 | 1.92 | 3.93 |
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矿物组成及相对含量(质量分数)
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| 黄铁矿 | 磁黄铁矿 | 黄铜矿 | 闪锌矿 | 异极矿 |
| 21.44 | 15.89 | 0.07 | 4.22 | <0.01 |
| 石膏 | 石英 | 长石 | 白云母 | 黑云母 |
| 1.48 | 15.72 | 5.19 | 6.46 | 4.56 |
| 方铅矿 | 毒砂 | 砷黝铜矿 | 磁铁矿 | 菱铁矿 |
| 0.33 | 0.04 | <0.01 | 0.4 | 11.05 |
| 绿泥石 | 阳起石 | 白云石 | 磷灰石 | 有机碳 |
| 1.31 | 0.66 | 4.42 | 1.92 | 3.93 |
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| 抑制剂种类及用量/(g·t-1) | 产品名称 | 产率/% | 品位/% | 回收率/% |
|---|
| Zn | C | Zn | C |
|---|
| 无 | 锌粗精矿 | 6.72 | 25.75 | 4.11 | 86.48 | 5.74 |
| 尾矿 | 93.28 | 0.29 | 4.86 | 13.52 | 94.26 |
| 给矿 | 100.00 | 2.00 | 4.81 | 100.00 | 100.00 |
可溶性淀粉 1 000 | 锌粗精矿 | 7.80 | 22.04 | 1.62 | 86.54 | 2.63 |
| 尾矿 | 92.20 | 0.29 | 5.08 | 13.46 | 97.37 |
| 给矿 | 100.00 | 1.99 | 4.81 | 100.00 | 100.00 |
古尔胶 400 | 锌粗精矿 | 2.36 | 20.15 | 3.39 | 23.56 | 1.67 |
| 尾矿 | 97.64 | 1.58 | 4.82 | 76.44 | 98.33 |
| 给矿 | 100.00 | 2.02 | 4.79 | 100.00 | 100.00 |
腐殖酸钠 1 000 | 锌粗精矿 | 6.88 | 25.23 | 2.09 | 86.54 | 3.01 |
| 尾矿 | 93.12 | 0.29 | 4.98 | 13.46 | 96.99 |
| 给矿 | 100.00 | 2.01 | 4.78 | 100.00 | 100.00 |
糊精 1 000 | 锌粗精矿 | 6.22 | 22.84 | 2.31 | 71.29 | 2.97 |
| 尾矿 | 93.78 | 0.61 | 5.01 | 28.71 | 97.03 |
| 给矿 | 100.00 | 1.99 | 4.84 | 100.00 | 100.00 |
木质素磺酸钠 1 000 | 锌粗精矿 | 5.37 | 27.84 | 1.95 | 74.88 | 2.16 |
| 尾矿 | 94.63 | 0.53 | 5.01 | 25.12 | 97.84 |
| 给矿 | 100.00 | 2.00 | 4.85 | 100.00 | 100.00 |
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有机碳抑制剂种类试验结果
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| 抑制剂种类及用量/(g·t-1) | 产品名称 | 产率/% | 品位/% | 回收率/% |
|---|
| Zn | C | Zn | C |
|---|
| 无 | 锌粗精矿 | 6.72 | 25.75 | 4.11 | 86.48 | 5.74 |
| 尾矿 | 93.28 | 0.29 | 4.86 | 13.52 | 94.26 |
| 给矿 | 100.00 | 2.00 | 4.81 | 100.00 | 100.00 |
可溶性淀粉 1 000 | 锌粗精矿 | 7.80 | 22.04 | 1.62 | 86.54 | 2.63 |
| 尾矿 | 92.20 | 0.29 | 5.08 | 13.46 | 97.37 |
| 给矿 | 100.00 | 1.99 | 4.81 | 100.00 | 100.00 |
古尔胶 400 | 锌粗精矿 | 2.36 | 20.15 | 3.39 | 23.56 | 1.67 |
| 尾矿 | 97.64 | 1.58 | 4.82 | 76.44 | 98.33 |
| 给矿 | 100.00 | 2.02 | 4.79 | 100.00 | 100.00 |
腐殖酸钠 1 000 | 锌粗精矿 | 6.88 | 25.23 | 2.09 | 86.54 | 3.01 |
| 尾矿 | 93.12 | 0.29 | 4.98 | 13.46 | 96.99 |
| 给矿 | 100.00 | 2.01 | 4.78 | 100.00 | 100.00 |
糊精 1 000 | 锌粗精矿 | 6.22 | 22.84 | 2.31 | 71.29 | 2.97 |
| 尾矿 | 93.78 | 0.61 | 5.01 | 28.71 | 97.03 |
| 给矿 | 100.00 | 1.99 | 4.84 | 100.00 | 100.00 |
木质素磺酸钠 1 000 | 锌粗精矿 | 5.37 | 27.84 | 1.95 | 74.88 | 2.16 |
| 尾矿 | 94.63 | 0.53 | 5.01 | 25.12 | 97.84 |
| 给矿 | 100.00 | 2.00 | 4.85 | 100.00 | 100.00 |
), ArticleFig(id=1241327501654413540, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241321981996487560, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 添加顺序 | 产品名称 | 产率/% | 品位/% | 回收率/% |
|---|
| Zn | C | Zn | C |
|---|
| 先加可溶性淀粉 | 锌粗精矿 | 7.76 | 23.04 | 1.52 | 88.58 | 2.46 |
| 尾矿 | 92.24 | 0.25 | 5.06 | 11.42 | 97.54 |
| 给矿 | 100.00 | 2.02 | 4.79 | 100.00 | 100.00 |
| 同时添加 | 锌粗精矿 | 6.82 | 25.55 | 2.12 | 86.57 | 3.02 |
| 尾矿 | 93.18 | 0.29 | 4.98 | 13.43 | 96.98 |
| 给矿 | 100.00 | 2.01 | 4.78 | 100.00 | 100.00 |
| 先加硫酸铜 | 锌粗精矿 | 6.95 | 24.64 | 3.22 | 85.58 | 4.71 |
| 尾矿 | 93.05 | 0.31 | 4.87 | 14.42 | 95.29 |
| 给矿 | 100.00 | 2.00 | 4.76 | 100.00 | 100.00 |
), ArticleFig(id=1241327501738299626, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241321981996487560, language=CN, label=表4, caption=
调整剂添加顺序试验结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 添加顺序 | 产品名称 | 产率/% | 品位/% | 回收率/% |
|---|
| Zn | C | Zn | C |
|---|
| 先加可溶性淀粉 | 锌粗精矿 | 7.76 | 23.04 | 1.52 | 88.58 | 2.46 |
| 尾矿 | 92.24 | 0.25 | 5.06 | 11.42 | 97.54 |
| 给矿 | 100.00 | 2.02 | 4.79 | 100.00 | 100.00 |
| 同时添加 | 锌粗精矿 | 6.82 | 25.55 | 2.12 | 86.57 | 3.02 |
| 尾矿 | 93.18 | 0.29 | 4.98 | 13.43 | 96.98 |
| 给矿 | 100.00 | 2.01 | 4.78 | 100.00 | 100.00 |
| 先加硫酸铜 | 锌粗精矿 | 6.95 | 24.64 | 3.22 | 85.58 | 4.71 |
| 尾矿 | 93.05 | 0.31 | 4.87 | 14.42 | 95.29 |
| 给矿 | 100.00 | 2.00 | 4.76 | 100.00 | 100.00 |
), ArticleFig(id=1241327501897683184, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241321981996487560, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 工艺流程 | 产品名称 | 产率/% | 品位/% | 回收率/% |
|---|
| Zn | C | Zn | C |
|---|
| 优化工艺 | 锌精矿 | 3.85 | 48.71 | 0.86 | 90.28 | 0.68 |
| 尾矿 | 96.15 | 0.21 | 5.04 | 9.72 | 99.32 |
| 选锌给矿 | 100.00 | 2.08 | 4.88 | 100.00 | 100.00 |
| 现场工艺 | 锌精矿 | 4.02 | 46.72 | 3.19 | 89.89 | 2.64 |
| 尾矿 | 95.98 | 0.22 | 4.93 | 10.11 | 97.36 |
| 选锌给矿 | 100.00 | 2.09 | 4.86 | 100.00 | 100.00 |
), ArticleFig(id=1241327502015123703, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1241321981996487560, language=CN, label=表5, caption=
闭路试验结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 工艺流程 | 产品名称 | 产率/% | 品位/% | 回收率/% |
|---|
| Zn | C | Zn | C |
|---|
| 优化工艺 | 锌精矿 | 3.85 | 48.71 | 0.86 | 90.28 | 0.68 |
| 尾矿 | 96.15 | 0.21 | 5.04 | 9.72 | 99.32 |
| 选锌给矿 | 100.00 | 2.08 | 4.88 | 100.00 | 100.00 |
| 现场工艺 | 锌精矿 | 4.02 | 46.72 | 3.19 | 89.89 | 2.64 |
| 尾矿 | 95.98 | 0.22 | 4.93 | 10.11 | 97.36 |
| 选锌给矿 | 100.00 | 2.09 | 4.86 | 100.00 | 100.00 |
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