难选金矿微波预处理边磨边浸非氰化试验研究

doi:10.11872/j.issn.1005-2518.2015.01.085

Abstract

Abstract:

The analysis results of ore chemical composition at a certain refractory gold demonstrated that the gold grade was around 3.51×10-6，content of SiO2 was as high as 71.88%，harmful element was mainly with the presentation of organic carbon and sulfur.In addition，the content of organic of carbon even reached up to 2.51%，which hampered the following leaching procedure seriously.After analyzing the XRD and phase of gold，it was found that the ore main minerals were primary composed with quartz，calcite and sulfide ore，while sulfide ore was given priority to with pyrite.According to the characters of refractory gold ore，when employing the cyanide reagent TL to leaching directly，low leaching rate can be obtained.Therefore，we used microwave method for pretreatment with grinding and leaching simultaneously without cyaniding，and paid attention to the microwave roasting time，microwave roasting temperature，the amount of leaching agent TL，liquid-solid ratio，and the impact of mill leaching time on the gold leaching rate.The results showed under the conditions that microwave roasting temperature at 650 ℃，and microwave baking time of 45 min，the gold leaching rate of 71.64% was achieved when a non-cyanide leaching dosage was 6 kg/t，liquid to solid ratio was about 4∶1，and grinding time was 6 h.

Key words: refractory gold ore, microwave pretreatment, grinding and leaching, non-cyanide

CLC Number:

TF831

TANG Lijing，TANG Yun，XU Zhengbo. Experimental Research on Refractory Gold Ore Pretreated by Grinding and Leaching Simultaneously with Non-cyanide[J].Gold Science and Technology, 2015, 23(1): 85-89.

References

［1］邱廷省，夏青.难选金矿细菌预处理技术理论与实践［J］.江西理工大学学报，2004，25（2）：6-11.
［2］ Yang H Y，Liu Q，Song X L，et al.Research status of carbonaceous matter in carbonaceous gold ores and bio-oxidation pretreatment［J］.Transacttions of Nonferrous Metals Society of China，2013，23（11）：3405-3411.
［3］ Amankwah R K，Pickles C A.Microwave roasting of a carbonaceous sulphidic gold concentrate［J］.Minerals Engineering，2009，22（13）：1095-1101.
［4］阿曼克瓦赫 R K.双重难选金矿石的两段细菌预处理法［J］.国外金属矿选矿，2005，42（6）：33-36.
［5］廖德华.难处理含铜金矿化学氧化预处理浸出技术研究［D］.赣州：江西理工大学，2008.
［6］刘政，杨绍斌，宋小美，等.生物氧化难浸金矿的研究现状［J］.湿法冶金，2010，29（1）：9-11.
［7］王帅，李超，李宏煦.难浸金矿预处理技术及其研究进展［J］.黄金科学技术，2014，22（4）：129-134.
［8］杨洪英，王胜利，富瑶，等.难处理金矿吸附浸矿细菌多糖含量变化的研究［J］.东北大学学报：自然科学版，2009，30（1）：101-104.
［9］许晓阳.碳质难处理金矿浸出工艺研究进展［J］.黄金科学技术，2013，21（1）：82-88.
［10］熊大民.高砷金矿预先脱砷及后续工艺试验［D］.昆明：昆明理工大学，2001.
［11］温胜来，周源.浙江某金矿全泥氰化浸出试验研究［J］.湿法冶金，2012，31（2）：103-105.
［12］王在谦，唐云，张覃，等.微细粒碳质金矿碱性热压预处理脱碳试验研究［J］.黄金，2014，（3）：52-55.
［13］张文轩，钟宏，符剑刚，等.难浸金矿石预处理工艺研究现状［J］.稀有金属与硬质合金，2008，（3）：62-66.
［14］魏莉，屈战龙，朴慧京.微波焙烧预处理难浸金矿物［J］.过程工程学报，2009，9（增）：56-60.

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Experimental Research on Refractory Gold Ore Pretreated by Grinding and Leaching Simultaneously with Non-cyanide

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