本文已被：浏览 2779次 下载 3201次
投稿时间：2013-10-19 修订日期：2013-10-21 录用日期：2013-10-23 网络发布日期：2014-04-22
投稿时间：2013-10-19 修订日期：2013-10-21 录用日期：2013-10-23 网络发布日期：2014-04-22
中文摘要: 对低品位氧化型金矿石进行直接堆浸试验，考察矿石粉矿比、堆场高度、NaCN用量、喷淋强度、喷淋制度等对金浸出率的影响。结果表明，控制如下最佳工艺参数：矿石粉矿比8%以下、堆场高度11.5 m、NaCN用量0.175 kg/t、喷淋强度1.35 m3/t，采用下述喷淋制度：NaCN浓度(900~1 000)×10-6喷淋3 d、(600~700)×10-6喷淋3 d、(300~400)×10-6喷淋4 d、(100~200)×10-6喷淋10 d、(50~60)×10-6喷淋53 d，可得到金浸出率76.1%的较好指标。
Abstract:The heap leaching experiments for low grade gold crude ore were carried out. The effects of fine ore ratio, height of heap, NaCN dosage, spray intensity, and spray pattern on gold leaching rate were investigated. The results show that the gold leaching rate is 76.1% under the optimum conditions including fine ore ratio of <8%, height of heap of 11.5 m, NaCN dosage of 0.17 kg/t, and spray intensity of 1.3 m3/t. Spray patterns include three-day spraying with the concentration of NaCN of (900~1 000)×10-6, three-day with the concentration of NaCN of (600~700)×10-6, four-day spraying with the concentration of NaCN of (300~400)×10-6, ten-day spraying with the concentration of NaCN of (100~200)×10-6, and 53-day spraying with the concentration of NaCN of (50~60)×10-6.
文章编号： 中图分类号： 文献标志码：
基金项目:
| 作者 | 单位 | |
| 黄志华* | 紫金矿业集团股份有限公司 | hzh50562@163.com |
| 杨政国 | 紫金矿业集团股份有限公司 | |
| 苏秀珠 | 紫金矿业集团股份有限公司 |
| Author Name | Affiliation | |
| huangzhihua | Zijin Mining Group Co．,Ltd． | hzh50562@163.com |
| yangzhengguo | ||
| suxiuzhu |
引用文本：
黄志华,杨政国,苏秀珠.低品位金矿石直接堆浸工艺研究[J].有色金属（冶炼部分）,2014(5):52-55.
huangzhihua,yangzhengguo,suxiuzhu.Technical Study on Heap Leaching for Low-grade Crude Gold Ores[J].Nonferrous Metals (Extractive Metallurgy),2014(5):52-55.
黄志华,杨政国,苏秀珠.低品位金矿石直接堆浸工艺研究[J].有色金属（冶炼部分）,2014(5):52-55.
huangzhihua,yangzhengguo,suxiuzhu.Technical Study on Heap Leaching for Low-grade Crude Gold Ores[J].Nonferrous Metals (Extractive Metallurgy),2014(5):52-55.
关注微信公众号