Article(id=1240648791532040668, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1240648781595725960, articleNumber=null, orderNo=null, doi=10.3969/j.issn.0253-6099.2024.05.025, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1711987200000, receivedDateStr=2024-04-02, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1773723322040, onlineDateStr=2026-03-17, pubDate=1727712000000, pubDateStr=2024-10-01, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1773723322040, onlineIssueDateStr=2026-03-17, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1773723322040, creator=13701087609, updateTime=1773723322040, updator=13701087609, issue=Issue{id=1240648781595725960, tenantId=1146029695717560320, journalId=1235980550691926019, year='2024', volume='44', issue='5', pageStart='1', pageEnd='184', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1773723319672, creator=13701087609, updateTime=1773824608750, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1241073618831078097, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1240648781595725960, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1241073618831078098, tenantId=1146029695717560320, journalId=1235980550691926019, issueId=1240648781595725960, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=124, endPage=127, ext={EN=ArticleExt(id=1240648791901139452, articleId=1240648791532040668, tenantId=1146029695717560320, journalId=1235980550691926019, language=EN, title=Experimental Study on Cyanide-Free Leaching of Arsenic-Bearing Gold Ore from Laos, columnId=1236276106727321817, journalTitle=Mining and Metallurgical Engineering, columnName=METALLURGY, runingTitle=null, highlight=null, articleAbstract=
A cyanide-free leaching test was performed for the arsenic-carbon bearing gold ore from Laos, and effects of grinding fineness, pH value of pulp, concentration of slurry, and the dosage of golden cicadas environment-friendly leaching agent for gold on gold leaching effect were investigated. The results show that pre-treatment with hydrogen peroxide can improve the leaching rate of gold. With a grinding fineness of -0.074 mm 95% and an agitating speed of 2 000 r/min, the pulp is pre-oxidized with 500 g/t of hydrogen peroxide for 3 h, and then treated by 30 h agitation leaching with addition of lime at an amount of 3 000 g/t and golden cicadas environment-friendly leaching agent for gold at 5 000 g/t, leading to the residue grading 0.25 g/t Au and gold leaching rate of 92.27%. It is shown that this pretreatment with hydrogen peroxide can make gold leaching rate up by 1.96 percentage points.
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对老挝某含砷含碳金矿进行了非氰浸出试验研究,考察了磨矿细度、矿浆pH值、矿浆浓度(质量分数)、金蝉环保型黄金选矿剂用量对金浸出效果的影响。结果表明:采用过氧化氢预处理可以提升金浸出率;在磨矿细度-0.074 mm粒级占95%、搅拌速度2 000 r/min条件下,采用过氧化氢500 g/t对矿浆预氧化处理3 h,然后再添加石灰3 000 g/t、金蝉环保型黄金选矿剂5 000 g/t,搅拌浸出30 h,尾渣金品位0.25 g/t,金浸出率92.27%,过氧化氢预氧化能使金浸出率提高1.96个百分点。
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陈京玉(1985—),男,山东烟台人,硕士,高级工程师,主要从事有色金属、黄金选冶生产及技术管理工作。E-mail:cjyhls@163.com
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矿冶工程,
2020,
40(2): 101-104., articleTitle=提高某含锑金矿锑浸出率的实验研究与实践, refAbstract=null)], funds=[Fund(id=1240648800696594510, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648791532040668, awardId=18PTWJHZ00080, language=CN, fundingSource=天津市“一带一路”科技创新合作项目(18PTWJHZ00080), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1240648792572228149, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648791532040668, xref=1., ext=[AuthorCompanyExt(id=1240648792580616759, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648791532040668, companyId=1240648792572228149, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.Tianjin Huakan Laos Mining Co., Ltd., Tianjin 300160, China), AuthorCompanyExt(id=1240648792593199672, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648791532040668, companyId=1240648792572228149, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1.天津华勘老挝矿业有限公司,天津 300160)]), AuthorCompany(id=1240648792740000325, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648791532040668, xref=2., ext=[AuthorCompanyExt(id=1240648792748388935, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648791532040668, companyId=1240648792740000325, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.Kunming Metallurgical Research Institute Co., Ltd., Kunming 650031, Yunnan, China), AuthorCompanyExt(id=1240648792756777543, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648791532040668, companyId=1240648792740000325, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.昆明冶金研究院有限公司,云南 昆明 650031)]), AuthorCompany(id=1240648792870023765, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648791532040668, xref=3., ext=[AuthorCompanyExt(id=1240648792878412375, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648791532040668, companyId=1240648792870023765, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3.National Key Laboratory of New Enhanced Metallurgical Technology for Nonferrous Metals, Kunming 650031, Yunnan, China), AuthorCompanyExt(id=1240648792899383896, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648791532040668, companyId=1240648792870023765, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3.有色金属强化冶金新技术全国重点实验室,云南 昆明 650031)])], figs=[ArticleFig(id=1240648797156602758, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648791532040668, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| Au1) | Ag1) | As | S | 有机碳 | Fe | Al2O3 | TiO2 |
| 3.200 | 7.510 | 0.100 | 0.093 | 0.855 | 0.230 | <0.500 | <0.500 |
| SiO2 | P | CaO | MgO | K | Sr | Cl | |
| 3.640 | 0.016 | 53.050 | 0.200 | 0.025 | 0.039 | <0.010 | |
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原矿主要化学元素分析结果(质量分数)
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| Au1) | Ag1) | As | S | 有机碳 | Fe | Al2O3 | TiO2 |
| 3.200 | 7.510 | 0.100 | 0.093 | 0.855 | 0.230 | <0.500 | <0.500 |
| SiO2 | P | CaO | MgO | K | Sr | Cl | |
| 3.640 | 0.016 | 53.050 | 0.200 | 0.025 | 0.039 | <0.010 | |
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| 金物相 | Au品位/(g·t-1) | Au分布率/% |
|---|
| 自然金 | 3.011 2 | 94.10 |
| 方解石 | 0.170 9 | 5.34 |
| 石英 | 0.017 9 | 0.56 |
| 合计 | 3.200 | 100.00 |
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金赋存状态
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| 金物相 | Au品位/(g·t-1) | Au分布率/% |
|---|
| 自然金 | 3.011 2 | 94.10 |
| 方解石 | 0.170 9 | 5.34 |
| 石英 | 0.017 9 | 0.56 |
| 合计 | 3.200 | 100.00 |
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| 磨矿细度 | 尾渣金品位/(g·t-1) | 金浸出率/% |
|---|
| -0.074 mm粒级占75% | 0.374 | 88.31 |
| -0.074 mm粒级占85% | 0.369 | 88.48 |
| -0.074 mm粒级占95% | 0.310 | 90.31 |
| -0.049 mm粒级占95% | 0.340 | 89.49 |
), ArticleFig(id=1240648797630559159, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648791532040668, language=CN, label=表3, caption=
磨矿细度对浸金效果的影响
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| 磨矿细度 | 尾渣金品位/(g·t-1) | 金浸出率/% |
|---|
| -0.074 mm粒级占75% | 0.374 | 88.31 |
| -0.074 mm粒级占85% | 0.369 | 88.48 |
| -0.074 mm粒级占95% | 0.310 | 90.31 |
| -0.049 mm粒级占95% | 0.340 | 89.49 |
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| 金蝉用量/(g·t-1) | 尾渣金品位/(g·t-1) | 金浸出率/% |
|---|
| 2 000 | 0.47 | 85.29 |
| 4 000 | 0.35 | 89.15 |
| 5 000 | 0.31 | 90.31 |
| 6 000 | 0.30 | 90.63 |
| 20 000 | 0.29 | 90.65 |
), ArticleFig(id=1240648799337640909, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648791532040668, language=CN, label=表4, caption=
金蝉用量对浸金效果的影响
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| 金蝉用量/(g·t-1) | 尾渣金品位/(g·t-1) | 金浸出率/% |
|---|
| 2 000 | 0.47 | 85.29 |
| 4 000 | 0.35 | 89.15 |
| 5 000 | 0.31 | 90.31 |
| 6 000 | 0.30 | 90.63 |
| 20 000 | 0.29 | 90.65 |
), ArticleFig(id=1240648799446692823, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648791532040668, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| pH值 | 尾渣金品位/(g·t-1) | 金浸出率/% |
|---|
| 10 | 0.36 | 88.89 |
| 11 | 0.35 | 89.13 |
| 12 | 0.31 | 90.31 |
| 13 | 0.31 | 90.31 |
), ArticleFig(id=1240648799585104869, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648791532040668, language=CN, label=表5, caption=
矿浆pH值对浸金效果的影响
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| pH值 | 尾渣金品位/(g·t-1) | 金浸出率/% |
|---|
| 10 | 0.36 | 88.89 |
| 11 | 0.35 | 89.13 |
| 12 | 0.31 | 90.31 |
| 13 | 0.31 | 90.31 |
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| 矿浆浓度/% | 尾渣金品位/(g·t-1) | 金浸出率/% |
|---|
| 25 | 0.33 | 89.69 |
| 30 | 0.32 | 90.00 |
| 35 | 0.31 | 90.31 |
| 40 | 0.31 | 90.31 |
| 45 | 0.33 | 89.69 |
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矿浆浓度试验结果
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| 矿浆浓度/% | 尾渣金品位/(g·t-1) | 金浸出率/% |
|---|
| 25 | 0.33 | 89.69 |
| 30 | 0.32 | 90.00 |
| 35 | 0.31 | 90.31 |
| 40 | 0.31 | 90.31 |
| 45 | 0.33 | 89.69 |
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| 预处理工艺条件 | 金浸出率/% |
|---|
| 直接浸出 | 90.31 |
| -15 mm焙烧 | 80.43 |
| -2 mm焙烧 | 82.76 |
| -0.15 mm焙烧 | 86.01 |
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焙烧预处理对浸金效果的影响
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| 预处理工艺条件 | 金浸出率/% |
|---|
| 直接浸出 | 90.31 |
| -15 mm焙烧 | 80.43 |
| -2 mm焙烧 | 82.76 |
| -0.15 mm焙烧 | 86.01 |
), ArticleFig(id=1240648800235221019, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648791532040668, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
| 助浸剂种类 | 尾渣金品位/(g·t-1) | 金浸出率/% |
|---|
| 氧气 | 0.32 | 90.12 |
| 过氧化氢 | 0.25 | 92.27 |
| 柠檬酸 | 0.30 | 90.63 |
| 硝酸铅 | 0.29 | 91.06 |
| 次氯酸钙 | 0.31 | 90.31 |
| 过氧化钙 | 0.29 | 91.06 |
), ArticleFig(id=1240648800335884325, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648791532040668, language=CN, label=表8, caption=
助浸剂种类对浸金效果的影响
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| 助浸剂种类 | 尾渣金品位/(g·t-1) | 金浸出率/% |
|---|
| 氧气 | 0.32 | 90.12 |
| 过氧化氢 | 0.25 | 92.27 |
| 柠檬酸 | 0.30 | 90.63 |
| 硝酸铅 | 0.29 | 91.06 |
| 次氯酸钙 | 0.31 | 90.31 |
| 过氧化钙 | 0.29 | 91.06 |
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| 过氧化氢用量/(g·t-1) | 尾渣金品位/(g·t-1) | 金浸出率/% |
|---|
| 0 | 0.31 | 90.31 |
| 300 | 0.29 | 91.06 |
| 500 | 0.25 | 92.27 |
| 700 | 0.31 | 90.31 |
), ArticleFig(id=1240648800562376768, tenantId=1146029695717560320, journalId=1235980550691926019, articleId=1240648791532040668, language=CN, label=表9, caption=
过氧化氢用量对浸金效果的影响
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| 过氧化氢用量/(g·t-1) | 尾渣金品位/(g·t-1) | 金浸出率/% |
|---|
| 0 | 0.31 | 90.31 |
| 300 | 0.29 | 91.06 |
| 500 | 0.25 | 92.27 |
| 700 | 0.31 | 90.31 |
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