Nā ʻenehana koʻikoʻi no ka hoʻopau ʻole ʻana i ke koena o ke gula concentrate cyanide

ʻO ke kaʻina hana cyanidation no ka ʻohi gula, kaena ʻana i ka mōʻaukala o nā makahiki 100, ke lanakila mau nei i ka hana ʻoihana gula o kēia manawa. ʻO kona kaulana mai kona maʻalahi a me ke kiʻekiʻe o ka hoʻihoʻi gula. Eia naʻe, hana kēia kaʻina hana i ka nui o nā huelo gula. ʻO ka hoʻopuka o cyanide ke piʻi aʻe nei nā koena o ke gula concentrates i kēlā me kēia makahiki. Hōʻike nā helu helu ʻo ka ʻoihana gula aupuni e hoʻopau ma kahi o 80 miliona a 100 miliona mau toni o nā koena cyanide i kēlā me kēia makahiki.

ʻO ka hoʻopaʻa ʻana i ka wā lōʻihi o kēia mau koena cyanide e hana i nā pilikia he nui. ʻO ka mea mua, he nui ka ʻāina. ʻO ka lua, ʻo ka mea ʻawaʻawa loa cyanides i nā koena hiki ke hoʻokuʻu i nā kinoea ʻawaʻawa a hana i ka wai ʻawaʻawa. Eia hou, hiki ke hoʻohaumia i nā kino wai a me ka lepo ma o ka wai ʻili a i ʻole ka wai lepo, e hoʻopilikia ana i ke olakino kanaka. ʻO ka mea hoʻohālikelike, loaʻa i nā koena cyanide mai nā koina gula nā kumuwaiwai waiwai e like me Cu, Pb, Zn, Fe, Au, S, a me Si i koe i lalo - hoʻihoʻi. No laila, ʻo ka hoʻokaʻawale pono ʻana i nā mea ʻawaʻawa, ka hoʻokaʻawale ʻana a me ka hoʻihoʻi ʻana i nā kumuwaiwai waiwai, a me ka hoʻohana nui ʻana i nā huelo de-cyanided ua lilo i mea nui i ka noiʻi honua a me nā pilikia.

United Chemical Co., Ltd.'s Solution: A Holistic Project

I ka pane ʻana i kēia mau pilikia, United Chemical Co., Ltd. ua hoʻomaka i ka papahana "Nā noiʻi a me ka hoʻohana ʻana i nā ʻenehana koʻikoʻi no ka hoʻokuʻu ʻole ʻana a me ka hoʻohana ʻana i nā kumuwaiwai o nā koena Cyanide mai Gold Concentrates".

Gradient - Manaʻo De - cyanidation a me Flotation Recovery

Ua ʻae ʻia ka "ʻenehana hou no ka Gradient - Controlled De - cyanidation and Flotation Recovery of Valuable Elements" no ka hoʻihoʻi piha ʻana iā Cu, Pb, a me Zn mai nā huelo cyanidation gula. ʻO ka hopena, ua hoʻokumu ʻia nā concentrates kepau a me nā concentrates keleawe.

Pyrite Interface Activation and Combined Processing for Iron and Gold Recovery

A laila, ua hoʻokō ʻia ka "New Technology for Pyrite Interface Activation and Combined Mineral Processing and Metallurgy for Iron and Gold Recovery". Ua hoʻokaʻawale maikaʻi kēia ʻenehana a hoʻihoʻi hou iā Fe a me Si mai nā huelo flotation de-cyanidated, me ka hāʻawi ʻana i nā ʻeke sulfur concentrates a me nā huelo silika kiʻekiʻe.

ʻAka Sulfuric a me ka Iron Pellet Production

Ua ho'ohana 'ia ka sulfur concentrates no ka hana 'ana i ka waikawa sulfuric concentrated ma o ka ho'omo'a 'ana i ka oxygen. Ua hoʻopalapala ʻia ka sulfur slag i kālua ʻia. Ma hope mai, ua hoʻohana ʻia ka "High - Temperature Iron - Gold Separation Technology" e hana i nā pellet hao a me ka lepo gula i hoʻonui ʻia me Cu, Pb, a me Zn.

Kiʻekiʻe - Silicon Tailings Recycling

ʻO ka "ʻenehana hou no ka Phase - Hoʻololi Hoʻoponopono a piha - Component Recycling of High - Silicon Tailings" i hiki ai ke hoʻololi i nā huelo silika kiʻekiʻe i loko o ka ʻano ʻEulopa.

Nā Kūlana ʻenehana a me ka noiʻi

Ua hoʻoponopono kēia pāhana i nā "paʻakikī ʻehā" pili i nā koena cyanide mai nā koina gula: hoʻomaopopo pono i nā mea ʻawaʻawa, hoʻoponopono a hoʻokaʻawale pololei i kā lākou mau ʻano, hoʻihoʻi i nā mea waiwai, a me ka hana hou ʻana i nā huelo. Ua hoʻokomo i kahi ala interdisciplinary hou, hoʻohui i ka hoʻoili mineral, metallurgy, a me ka ʻepekema kaiapuni. Ua holo ka noiʻi i ke kaulahao holoʻokoʻa, mai ka wehe ʻana i nā kumu ʻepekema a hiki i ka hoʻomohala ʻana i nā ʻenehana hoʻomalu a me ka hana ʻana i nā hōʻikeʻike ʻenekinia.

Ma ke alo o ka ʻepekema a me ka ʻenehana, ua hōʻike ʻo ia i ke ʻano o nā ʻano mea ʻawaʻawa i loko o ka cyanide - loaʻa nā ʻōpala pōʻino loa. Ma ka pae noi, ua hoʻomohala ʻia nā ʻenehana no ka dissociation palekana a me ka hoʻokuʻu paʻa ʻana o nā mea ʻawaʻawa, ka hoʻohui ʻia ʻana o nā mea waiwai, a me ka hoʻohana kiʻekiʻe o ka waiwai o nā kumu waiwai huelo.

Nā hualoaʻa noiʻi ʻenehana

Ma hope o ka hoʻohana ʻana i ka ʻenehana i nā hoʻokō o ka papahana, ʻoi aku ka nui o ka hoʻihoʻi ʻana o nā metala waiwai mai nā koena cyanide o nā concentrates gula ma mua o 90%. Ua ike keia hana i ka Hoʻopau pōʻino a piha - ʻāpana Māhana hoʻohana o na koena cyanide mai na mea gula. I kēlā me kēia makahiki, hana ka papahana ma kahi o 8.000 tons o kēlā me kēia o ke alakaʻi concentrates a me ke keleawe concentrates, ma luna o 300.000 tons o ka kiʻekiʻe - sulfur concentrates, ma luna o 200.000 tons o ka sulfuric acid concentrated a me nā pellets oxidized, ma kahi o 700 kg o ke gula, a ʻoi aku ma mua o 90 miliona mau tile ʻEulopa. ʻIke ʻia, ua lawe mai ka papahana i nā pōmaikaʻi hoʻokele waiwai, kaiapuni, a me ka pilikanaka.