Carbon Slurry Cyanidation: He ʻano no ka hoʻihoʻi ʻana i ke gula mai ka huelo keleawe

Carbon Slurry Cyanidation: A Method for Gold Recovery from Copper Tailing Sodium cyanide copper tailings carbon-in-pulp cyanidation No. 1picture

Introduction

I ka ʻoihana hana mining, ʻo ka hoʻōla pono ʻana o nā metala waiwai mai nā tailings he mea nui loa ia no ka hoʻohana ʻana i nā kumuwaiwai a me ka pale ʻana i ke kaiapuni. Ke nānā nei kēia hihia i kahi lua keleawe ma Asia Waena, kahi o KeleponaUa hoʻopili ʻia ke kaʻina hana cyanidation -in-pulp (CIP) i nā huelo lana keleawe no ka hoʻōla ʻana i ke gula.

Nā Kaʻina Holoi

Ua hana mua ʻia nā huelo lele keleawe. Ma o ke kaʻina hana flotation, ua loaʻa kahi ʻano flotation concentrate me kahi mea gula o 48.50 g / t a me kahi ʻāpana keleawe o 8.45%. Ma hope o ka lele ʻana, loaʻa i nā huelo he keleawe maʻiʻo o 0.21%, a ma waena o lākou ka cyanideʻO ka maʻiʻo keleawe hiki ke hoʻoheheʻe ʻia he 0.12%.

Kaʻina Hana Cyanidation CIP

Hoʻokomo ʻia nā huelo lele i ka cyanidation carbon-in-pulp. Ma keia hana, ʻO Sodium cyanide ʻO ka hoʻohana ʻana he 3.1 kg / t. Ua hiki i ka 74.71% ka nui o ka leaching gula. ʻO ka nui o ka hoʻihoʻi ʻana o ke gula ma o ka hui ʻana o ka flotation a me ka leaching he 88.26%, a ʻo ka helu hoʻihoʻi keleawe he 62.16%.

Nā hopena a me nā pono

Ke noi o ka CIP cyanidation kaʻina hana i huelo keleawe i kēia hihia ua loaʻa nā hopena kupaianaha. ʻO ka mea mua, ua hoʻihoʻi maikaʻi ʻo ia i ke gula mai nā huelo, e hoʻonui ana i ka hana gula holoʻokoʻa o ka maina. ʻO ka lua, ua hoʻomaikaʻi ke kaʻina hana i ka nui o ka hoʻohana ʻana i nā kumuwaiwai keleawe, e hōʻemi ana i ka pau ʻole o nā metala waiwai. Eia kekahi, ke hoʻohālikelike ʻia me kekahi mau ʻano lapaʻau kuʻuna tailings, ʻo kēia kaʻina hana he haʻahaʻa haʻahaʻa ka hoʻohana ʻana i ka ikehu a me ka hana maʻalahi, ʻo ia ka mea e kūpono ai i ka mālama kumu kūʻai a me ka mālama ʻana i ke kaiapuni.

Panina

Hōʻike kēia haʻawina hihia i ke kaʻina hana carbon-in-pulp cyanidation he ala kūpono a kūpono no ka hoʻihoʻi ʻana i ke gula mai nā huelo keleawe. Ma ka hoʻonui ʻana i ke kahe o ke kaʻina hana a me nā ʻāpana, hiki ke hoʻomaikaʻi hou ʻia ka helu hoʻihoʻi o nā metala waiwai, e hāʻawi ana i kahi kuhikuhi no nā mines like i ka hoʻihoʻi waiwai a me ka hoʻomohala hoʻomau.s

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