云南某低品位铜矿石中伴生金的强化回收-矿业114|?/title> <meta name="renderer" content="webkit|ie-comp|ie-stand" /> <meta name="keywords" content="选 铜矿矟뀀伴生金 l合捕收剂Z-200+丁铵黑药" /> <meta name="description" content="云南某低品位铜矿石铜、金品位分别?Q?35%?Q?114 g/ t,现场以丁基黄药ؓ捕收 ?在磨矿细度ؓ- 0Q?075 mm ?4Q?30%的条件下选选铜,q金在铜精矿中富集,获得的铜_铜金回收率分? ?1Q?60% ? 45Q?70%。ؓ提高金的回收效果,以现场工艺流Eؓ基础,以提高金回收率ؓ主要目标q行了Q? 选铜试验。结果表 ?在磨矿细度ؓ-0Q?075 mm ?0%的情况下,以Z-200+丁铵黑药为捕收剂,730A v泡剂,采用1 _? _? 扫、中 矉K序返回的闭\试验程回收铜和?最l获得的铜精矉K品位?2Q?48%、含..." /> <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes" /> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" /> <!-- medicom style --> <link rel="stylesheet" type="text/css" href="/resource/website/article/Content/css/flexslider.css" /> <link href="/resource/website/article/Content/css/style.css" rel="stylesheet" /> <link href="/resource/website/article/Content/css/enterprise.css" rel="stylesheet" /> <script src="/library/JavaScriptOpt.js"></script> <script src="/website_template/edition3/content/js/download.js"></script> <script src="/library/jquery/js/jquery-1.9.1.js"></script> <script src="/library/jquery/js/jquery-ui-1.10.3.custom.min.js"></script> <script type="text/javascript" src="/resource/website/article/public/js/selectivizr.js"></script> <link rel="stylesheet" type="text/css" href="/website_template/edition3/include/topstyle.css" /> <script> (function () { var bp = document.createElement('script'); bp.src = '//push.zhanzhang.baidu.com/push.js'; var s = document.getElementsByTagName("script")[0]; s.parentNode.insertBefore(bp, s); })(); </script> <meta http-equiv="Cache-Control" content="no-transform" /> <meta http-equiv="Cache-Control" content="no-siteapp" /> </head> <body> <script type="text/javascript" src="/resource/website/article/public/js/IECompatible.js"></script> ?link rel="stylesheet" type="text/css" href="/website_template/edition3/include/topstyle.css" /> <!--<link rel="stylesheet" type="text/css" href="/website_template/edition3/index/css/style.css" />--> <div id="header"> <!--head--> <div class="colourfull-row"> <ul class="list-inline"> <li><a href="/">矿业114首页</a></li> <li>用户?</li> <li id="UserName_Input"> <input id="UserName_Value" type="text" name="name" /> </li> <li id="Password_Text">密码:</li> <li id="Password_Input"> <input id="Password_Value" type="password" name="password" /> </li> <li> <a id="LoginLogout_Button" href="javascript:loginlogout();">d</a> </li> <li> <a id="reg_btn" href="javascript:regbtnClick();">注册</a> </li> </ul> <div class="colourfull-row-right"> 客服电话:0555-2309838 2309819 2309829 </div> </div> <!-- d面 --> <div class="passport-login-pop" id='LM' style="display: none;"> <div class="login"> <div class="login-top"> <span>矿业114会员d</span> </div> <ul class="login-input" style="text-align: center;"> <li> <input id="winUserName" type="text" name="name" placeholder="用户? 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?1Q?60% ? 45Q?70%。ؓ提高金的回收效果,以现场工艺流Eؓ基础,以提高金回收率ؓ主要目标q行了Q? 选铜试验。结果表 ?在磨矿细度ؓ-0Q?075 mm ?0%的情况下,以Z-200+丁铵黑药为捕收剂,730A v泡剂,采用1 _? _? 扫、中 矉K序返回的闭\试验程回收铜和?最l获得的铜精矉K品位?2Q?48%、含... </div> <!-- D start --> <!-- 正文 --> <div class="mainbody"> <div style="display:none"> Series NoQ?471 金ꢀ w 属ꢀ w 矿ꢀ w 屘ˢ w w w w w w w w w w w w w w ȝ 471? METAL MINE 2015 q第 9 ? w w w w w w w w w w w w w w Septemberw 2015 云南某低品位铜矿石中伴生金的强化回收 1 2 2 2 1,2 何庆?w 杨ꢀ ?w 童ꢀ ?w 谢ꢀ ?w 莫ꢀ ? ( 1Q?云南华联锌铟股䆾有限公司,云南 文山 663701;2Q?昆明理工大学国土资源工程学院,云南 昆明 650093) 摘ꢀ 要ꢀ 云南某低品位铜矿石铜、金品位分别?0Q?35% ?Q?114 g/ t,现场以丁基黄药ؓ捕收?在磨矿细度ؓw? Q?075 mm ?74Q?30% 的条件下选选铜,q金在铜精矿中富集,获得的铜_铜金回收率分别ؓ 91Q?60% ? 0 45Q?70% ?为提高金的回收效?以现场工艺流Eؓ基础,以提高金回收率ؓ主要目标q行了Q选选铜试验?l果? ?在磨矿细度ؓw?Q?075 mm ?80% 的情况下,?Zw?00+丁铵黑药为捕收剂,730A v泡剂,采用 1 _?3 _?2 扫、中 矉K序返回的闭\试验程回收铜和?最l获得的铜精矉K品位?22Q?48% 、含?4Q?53 g/ t、铜回收率ؓ 92Q?85% 、金 回收率ؓ 56Q?30% ?可见,?Zw?00+丁铵黑药为捕收剂,不仅能显著提高铜_金回收率 10Q?60 个百分点,而且能小 q提高铜回收?1Q?25 个百分点? 关键词ꢀ 选ꢀ 铜矿石ꢀ 伴生金ꢀ l合捕收?Zw?00+丁铵黑药 + w 中图分类号ꢀ TD923 . 7w w w 文献标志码ꢀ Aw w w 文章~号w 1001-1250(2015)-09-058-04 w Improvement of Associated Gold Recovery from a Low Grade Copper Ore in Yunnan Province 1 2 2 2 1,2 He Qinglang w Yang Bo w Tong Xiong w Xie Xian w Mo Feng ( 1. Yunnan Hualian Zinc & Indium Stock Co. ,Ltd. ,Wenshan 663701,China;2. Faculty of Land & Resources Engineering,Kunming University of Science and Technology,Kunming 650093,China) Abstractw A copper ore in Yunnan Province contains 0. 35% Cu,0. 114 g/ t Au,the recovery of copper and gold is 9 1Q?60% and 45. 70% respectively through the on-site process,at the grinding fineness of 74. 30% w?. 075 mm using sodium butyl xanthate as copper collector. To improve the recovery of associated gold,copper flotation experiments were conducted based on the on-site process with gold recovery improving as goals. The results showed that copper concentrate with 22. 48% Cu,4. 53 g/ t Au,Cu and Au recovery of 92. 85% and 56. 30% respectively was obtained through the closed-circuit flotation process of one roughing-three cleaning-two scavenging at grinding fineness of 80% w?. 075 mm,and with ammonium dibutyl dithiophosphate and Z-200 as combined collector and 730A as frother. Therefore,Z-200 and ammonium dibutyl dithiophosphate as combined collector not only improves the index gold recovery in copper concentrate by 10. 60 percentage points,but also in- crease copper recovery by 1. 25 percentage points. Keywordsw Flotation,Copper ore,Associated gold,Combined collector Zw?00 and ammonium dibutyl dithiophosphate w w 我国铜资源的显著特点是共伴生l分?l合? 因主要有以下 3 斚w:一是Q选工艺流E不够完? 相比较主金属元素,对伴生元素金{的回收重视? ?二是选药剂制度不够合?难以满伴生金等 E贵金属元素的回收要求,其是采用高工?? 大地影响了伴生金的回?三是矿物单体解离度不 ??{???????? ??????{??? 值高,许多铜矿q产的铜精矿含有h值可观的金? 银、铂族等E贵金?如金川铜镍矿中伴生有丰富? [ 1-3] ?提高铜等有色金属矿石? 金、铂族金属元素等 伴生金、银{稀贵金属的回收?既能提高企业的经 效?又能提高资源l合利用?~解C会发展? 金、银{稀贵金属的需求? [ 5-8] ? ? 据统?我国从铜{有色金属矿床中回收的金? 云南某低品位铜矿石铜、金品位分别?0Q?35% ? [ 4] q金总量?35% ~ 40% ,但大多数选矿厂中? 0Q?114 g / t,׃现场的药剂制度和工艺程以铜的回 收ؓ?对伴生在黄铜矿和黄铁矿中金的回收效果? 生金的回收率均不高?金综合回收效果不理想的原 收稿日期w 2015-05-22 基金目w 云南省应用基研究计划目(~号:2014FA027)? 作者简介ꢀ 何庆?1969?,?高工程师?通讯作者ꢀ 童ꢀ ?1965?,?教授,博士?博士研究生导师? · 58· w w w 何庆等:云南某低品位铜矿石中伴生金的强化回收w w w w w w w w w w w w w w 2015 q第 9 ? 差?实验室研I发?以现场工艺流Eؓ基础,通过 提高矿l度和对选药剂制度进行优?可在一? E度上显著提高伴生金的回收率,提高资源的综合利 用效率和企业的经效益? 从表 3 可以看出:提高矿l度,_精矉K金品 位均下降;矿l度从ꢁ0Q?075 mm ?70% 提高至ꢁ 0Q?075 mm ?85% ,铜和金回收率上升;当磨矿细? 为ꢁ0Q?075 mm ?85% ?铜精矉K和金的回收率最 ?q一步提高磨矿细度至w?Q?075 mm ?90% ,铜金 回收?开 ??降?l???? ????l???w? 0Q?075 mm ?80% ? 1 w 试ꢀ ? 试样中金属矿物主要ؓ黄铜ѝ褐铁矿及少量的 黄铁?非金属矿物主要ؓ矌、长矟뀁云母和l惔? {?试样中的金主要以微细_自焉的Ş式包裹在 黄铜矿和黄铁矿中?试样主要化学成分分析l果? ?1,铜物相分析结果见?2? 2Q?1Q?2w 捕收剂试? 2Q?1Q?2Q?1w 捕收剂选择试验 现场采用的捕收剂丁基黄药虽是铜矿物Q选的 良好捕收?但对伴生金的捕收能力较弱?为改善金 的综合回收效?对多U捕收剂和捕收剂l合q行? {选试验?捕收剂选择试验的磨矿细度ؓ w?Q?075 ?1w 试样主要化学成分分析l果 Table 1w Main chemical composition analysis results of the sample % # mm ?80% ,2 油用量ؓ 30 g / t,试验l果见表 4? 成ꢀ ? 含ꢀ ? 成ꢀ ? 含ꢀ ? Cu Fe S Pb 0Q?04 As Zn 0Q?01 Au SiO 2 0Q?35 19Q?22 MgO 4Q?95 4Q?70 CaO 4Q?40 35Q?45 ?4w 捕收剂种c试验粗_指标 Al O Ag Table 4w Rough concentrate index on types of collector 2 3 8Q?93 0Q?08 0Q?114 0Q?60 ??? 名ꢀ U? 品位 / % 回收?/ % 用量 (g/ t) Cu Au Cu Au w w ?Au、Ag 的含量单位ؓ g/ t? / ?2w 试样铜物相分析结? Table 2w Copper phase analysis results of the samplew 丁基黄药 Zw?00 100 100 100 6Q?63 7Q?01 6Q?51 6Q?93 7Q?85 7Q?03 1Q?86 1Q?91 1Q?54 2Q?12 2Q?06 1Q?98 80Q?27 78Q?87 78Q?04 80Q?89 80Q?33 80Q?68 44Q?82 43Q?15 40Q?24 45Q?63 46Q?78 45Q?86 % Yw?9 铜相? 含ꢀ ? 分布? 丁基黄药+丁铵黑药 50+50 化? 自由氧化? l合氧化? 总ꢀ ? 0Q?33 0Q?01 0Q?01 0Q?35 94Q?28 2Q?86 Zw?00+丁铵黑药 Yw?9+丁铵黑药 50+50 50+50 2Q?86 w w ?Au 的品位单位ؓ g/ t? 100Q?00 从表 4 可以看出,与单一捕收剂丁基黄药相? w w 从表 1 可以看出,试样中主要元素ؓ铜、金和铁, 采用l合捕收?Zw?00+丁铵黑药,可明显提高伴? 金的回收?1Q?96 个百分点? 均具有回收h倹{? 从表 2 可以看出,试样中的铜主要以化铜的? 式存?占总铜?94Q?28% ? Zw?00 对硫化铜矿物h较好的选择?而丁? 黑药可强化对伴生金的回收?因此,定采用 Zw?00 2 w 试验l果与讨? Q?1w 条g试验 + 丁铵黑药为铜金؜捕收剂? 2 2 2 Q?1Q?2Q?2w Z-200+丁铵黑药配比试验 条g试验采用 1 ơ粗选流E? Zw?00+丁铵黑药配比试验固定二者ȝ?80 Q?1Q?1w 矿l度试验 # g / t,矿l度为ꢁ0Q?075 mm ?80% ,h?2 油ؓ 矿l度试验的捕收剂丁基黄药用量?100 # 30 g / t,试验l果见表 5? g / t,h?2 油用量ؓ 30 g / t,试验l果见见?3? ?3w 矿l度试验_精矿指? ?5w Z-200+丁铵黑药配比试验_精矿指? Table 5w Rough concentrate index on mass ration of Zw?00 to ammonium dibutyl dithiophosphate Table 3w Rough concentrate index at different grinding fineness % 品位/ % 回收? % Au Zw?00 与丁? 黑药质量? 品ꢀ ? 回收? 矿l度 w?Q?075 mm) Cu Au Cu ( Cu Au Cu Au 1 2 3 8Q?76 9Q?01 9Q?28 2Q?16 2Q?39 2Q?74 80Q?53 80Q?17 80Q?24 46Q?43 46Q?15 46Q?24 7 7 8 8 9 0 5 0 5 0 7Q?12 6Q?83 6Q?63 6Q?12 5Q?92 2Q?08 2Q?01 1Q?86 1Q?82 1Q?71 76Q?25 79Q?14 80Q?27 80Q?30 79Q?12 41Q?86 42Q?37 44Q?82 45Q?15 42Q?91 w w ?Au 的品位单位ؓ g/ t? 从表 5 可以看出,Zw?00 与丁铵黑药配比的变化 寚w金回收率影响较小,?Zw?00 与丁铵黑药的? w w ?Au 的品位单位ؓ g/ t? · 59· ȝ 471 期ꢀ w w w w w w w w w w w w 金ꢀ w 属ꢀ w 矿ꢀ w 屘ˢ w w w w w w w w w 2015 q第 9 ? 比ؓ 3 ?_精矉K金品位较高?因此,定 Zw?00 与丁铵黑药质量比?3? ?7w 闭\试验l果 Table 7w Experimental results of closed circuit flotation % 在此基础上进行了 Zw?00 与丁铵黑药粗选用? 试验,试验定的铜_?Zw?00 与丁铵黑药用量ؓ 品ꢀ ? 回收? 产ꢀ ? 产ꢀ ? Cu Au Cu Au 6 0+20 g / t? 铜精? ꢀ ? 原ꢀ ? 1Q?42 98Q?58 100Q?00 22Q?48 0Q?025 0Q?35 4Q?53 0Q?051 0Q?114 92Q?85 7Q?15 56Q?30 43Q?70 100Q?00 2 Q?1Q?3w h剂种cM用量试验 730A 是一Uv泡能力更强、沫稳定、黏度? 100Q?00 [ 9-10] # ?2 ? 中、用量低、来源广、成本低的新型v泡剂 w w ?Au 的品位单位ؓ g/ t? ?730A Ҏ试验的磨矿细度ؓw?Q?075 mm ?80% , 3 w lꢀ ? Zw?00+丁铵黑药用量?60+20 g / t,试验l果见表 6? ?6w h剂种cM用量试验_精矿指? Table 6w Rough concentrate index on ( 1) ?????????铜??????? 0Q?35% ?Q?114 g / t,主要铜矿物ؓ黄铜?化铜占? 铜的 94Q?28% ,矿石中的金主要以微细_自焉的Ş 式包裹在黄铜矿和黄铁矿中? type and dosage of frother h? 用量/ (g/ t) 品位 / % Au 回收? % ( 2))现场在磨矿细度ؓw?Q?075 mm ?74Q?30% 名称 Cu Cu Au # 的情况下,以丁基黄药ؓ捕收?2 油ؓh?采用 20 30 40 50 20 30 40 50 8Q?41 9Q?28 8Q?87 8Q?62 8Q?78 9Q?92 9Q?16 8Q?85 2Q?17 2Q?74 2Q?28 2Q?14 2Q?18 2Q?81 2Q?41 2Q?11 78Q?28 80Q?24 78Q?85 78Q?05 80Q?83 81Q?26 81Q?82 79Q?01 42Q?87 46Q?24 43Q?90 43Q?03 45Q?28 46Q?38 45Q?38 45Q?07 1 _?3 _?2 扫、中矉K序返回流E回攉?最l获 # 2 ? 得的铜精矉K金回收率分别?91Q?60% ?45Q?70% , 金回收率明显较低? ( 3)试验在磨矿细度ؓw?Q?075 mm ?80% 的情 7 30A 况下,?Zw?00+丁铵黑药为捕收剂,730A v泡剂, 采用 1 _?3 _?2 扫、中矉K序返回流E回攉和金, 获得的铜_铜品位ؓ 22Q?48% 、含?4Q?53 g / t、铜? 收率?92Q?85% 、金回收率ؓ 56Q?30% ?与现场生? 指标相比,不仅金回收率显著提高?10Q?60 个百? ?而且铜回收率也小q提高了 1Q?25 个百分点? w w ?Au 的品位单位ؓ g/ t? # 从表 6 可以看出:?2 油相?730A 可一定程? 上提高铜_精矉K品位和铜金回收率;随着 730A ? 量的增大,铜粗_铜金品位和铜金回收率均先上升 后下降?因此,定选铜h?730A 的用量ؓ 30 g / t? 参ꢀ 考ꢀ 文ꢀ ? 2 Q?2w 闭\试验 在条件试验和开路试验基上进行了闭\试验, [ 1]w 周玉?Q?某难选低品位铜硫矉K矿工艺研究[J]Q?有色矿冶, 2013(2):31-34Q? 试验程见图 1,试验l果见表 7? Zhou YucaiQ?Study on the mineral processing technology of a refracto- ry low grade copper sulfide ore[J]Q?Non-Ferrous Mining and Metal- lurgy,2013(2):31-34Q? [ [ 2]w 刘ꢀ ?孙乾?刘ꢀ ?Q?云南某氧化铜矿石选矿试验[ J]Q?? 属矿?2013(7):79-82Q? Liu Bao,Sun Qianyu,Liu MiaoQ?Beneficiation tests of a copper oxide ore from Yunnan[J]Q?Metal Mine,2013(7):79-82Q? 3]w I迎q?孙ꢀ ?耿志?{?Q?含易钙镁矿物的某黄铜矿的Q 选试验[J]Q?金属矿山,2014(11):67-70Q? Mu Yingying,Sun Wei,Geng Zhiqiang,et alQ?Flotation study on a chalcopyrite containing easy-floating calcium-magnesium minerals [ J]Q?Metal Mine,2014(11):67-70Q? 4]w 雯?Q?德兴铜矿伴生金的回收研究与实践[ J]Q?黄金,2000 9):32-35Q? [ [ ( ?1w 闭\试验程 Lei GuichunQ?Study and practice of the recovery of associated gold in Dexing Copper Mine[J]Q?Gold,2000(9):32-35Q? FigQ?1w Flowsheet of closed circuit flotation experiment 从表 7 可以看出,采用?1 所C的程处理试验 5]w 邱h?黄ꢀ ?艳?{?Q?安徽某低铜高磁铁矿石选矿? 验[J]Q?金属矿山,2014(11):58-61Q? 矿石,可得到铜品位?22Q?48% 、含?4Q?53 g / t、铜? 收率?92Q?85% 、金回收率ؓ 56Q?30% 的铜_? Qiu Tingsheng,Huang Xiong,Yin Yanfen,et alQ?Mineral processing · 60· w w w 何庆等:云南某低品位铜矿石中伴生金的强化回收w w w w w w w w w w w w w w 2015 q第 9 ? test of a low-copper and high-sulfur magnetite ore in Anhui nism analysis on leaching process of low grade copper sulfide intensi- fied by ultrasonic wave[J]Q?The Chinese Journal of Nonferrous Met- als,2013(7):2019-2025Q? [ J]Q?Metal Mine,2014(11):58-61Q? [ 6]w 覃文?姚国?Ӈ?{?Q?化矿物的Q选电化学与Q选行 为[J]Q?中国有色金属学报,2011(10):2669-2677Q? [9]w 李晓?刘述?杨新?Q?新v泡剂 730A 选铜矿的应用[J]Q? 中国有色金属学报,2002(3):587-591Q? Qin Wenqing,Yao Guocheng,Gu Guohua,et alQ?Electrochemistry of sulfide minerals and its floatability[J]Q?The Chinese Journal of Non- ferrous Metals,2011(10):2669-2677Q? Li Xiaoyang, Liu Shuzhong,Yang XinhuaQ?Flotation of copper ores with new frother 730A[J]Q?The Chinese Journal of Nonferrous Met- als,2002(3):587-591Q? [ [ 7]w 阙绍?黄荣?卢ꢀ ?Q?q西某低品位铜镍矿石选矿工艺研究 [ J]Q?金属矿山,2014(4):91-94Q? [10] w 刘述?李晓?{?Q?新v泡剂 730A 在铅锌矿的Q选研I? [J]Q?有色矿冶,2002(6):11-13Q? Que Shaojuan,Huang Rongqiang,Lu LinQ?Beneficiation experiment on a low-grade copper-nickel ore from Guangxi [ J] Q?Metal Mine, Liu Shuzhong,Li Xiaoyang,Yu Yunbai,et alQ?Research of new frot- her 730A on lead-zinc ores flotation[J]Q?Non-Ferrous Mining and Metallurgy,2002(6):11-13Q? 2014(4):91-94Q? 8]w 王贻?吴爱?艄?Q?低品位硫化铜矿超声强化浸出实验与 机理分析[J]Q?中国有色金属学报,2013(7):2019-2025Q? ( 责Q~辑w |主q? 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