Ukadaulo Waukulu Wakutayira Kopanda Vuto kwa Zotsalira za Cyanide za Golide

Njira yochotsera golide kuchokera ku cyanidation, yomwe yakhala ikuchitika kwa zaka zoposa 100, ikupitilizabe kugwira ntchito m'mafakitale opanga golide omwe alipo masiku ano. Kutchuka kwake kumachokera ku kuphweka kwake komanso kuchuluka kwa golide komwe kumabwezedwa. Komabe, njira imeneyi imapanga golide wambiri. Kutulutsa kwa cyanide kuchokera ku golide wambiri kwakhala kukuwonjezeka chaka chilichonse. Ziwerengero zikusonyeza kuti makampani opanga golide mdziko muno amatulutsa matani pafupifupi 80 miliyoni mpaka 100 miliyoni a cyanide chaka chilichonse.

Kusunga zotsalira za cyanide izi kwa nthawi yayitali kumabweretsa mavuto ambiri. Choyamba, zimakhala m'malo ambiri. Kachiwiri, ma cyanide oopsa kwambiri omwe ali m'zotsalira amatha kutulutsa mpweya woopsa ndikupanga madzi otayira acid. Kuphatikiza apo, ma ayoni osiyanasiyana achitsulo amatha kuipitsa madzi ozungulira ndi nthaka kudzera m'madzi apamwamba kapena pansi pa nthaka, zomwe zimaika pachiwopsezo thanzi la anthu. Chodabwitsa n'chakuti, zotsalira za cyanide kuchokera ku golide zimakhala ndi zinthu zamtengo wapatali monga Cu, Pb, Zn, Fe, Au, S, ndi Si zomwe sizikupezekanso. Chifukwa chake, kusiyanitsa mosamala zinthu za poizoni, kulekanitsa bwino ndikubwezeretsa zinthu zamtengo wapatali, komanso kugwiritsa ntchito kwambiri zinthu zopanda cyanide kwakhala zinthu zofunika kwambiri pa kafukufuku wapadziko lonse lapansi komanso zovuta.

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

Poyankha mavutowa, United Chemical Co., Ltd. anayambitsa pulojekiti ya "Kafukufuku ndi Kugwiritsa Ntchito Makiyi Ofunika Kwambiri pa Kutaya Mopanda Vuto ndi Kugwiritsa Ntchito Zida Zotsalira za Cyanide Kuchokera ku Gold Concentrates".

Gradient - Controlled De - cyanidation ndi Flotation Recovery

"Tekinoloje Yatsopano ya Gradient - Controlled De - cyanidation and Flotation Recovery of Valuable Elements" idalandiridwa kuti ipezenso Cu, Pb, ndi Zn kuchokera kuzitsulo za golide za cyanidation. Chotsatira chake chinali chakuti mitovu ichulukidwe ndi kuyika mkuwa.

Pyrite Interface Activation and Combined Processing for Iron and Gold Recovery

Kenaka, "Tekinoloje Yatsopano ya Pyrite Interface Activation ndi Combined Mineral Processing ndi Metallurgy for Iron and Gold Recovery" inakhazikitsidwa. Tekinoloje iyi idalekanitsa bwino ndikubwezeretsa Fe ndi Si kuchokera ku michira ya de - cyanidated flotation, kutulutsa sulfure imakhazikika komanso ma silicon apamwamba kwambiri.

Sulfuric Acid ndi Iron Pellet Production

Mafuta a sulfure ankagwiritsidwa ntchito popanga sulfuric acid yochuluka kupyolera mu kuotcha mpweya wofooka. Wokazinga sulfure slag anali pellets. Pambuyo pake, "High - Temperature Iron - Gold Separation Technology" idagwiritsidwa ntchito kuti ipange ma pellets achitsulo ndi matope a golide opangidwa ndi Cu, Pb, ndi Zn.

High - Silicon Tailings Recycling

"Tekinoloje Yatsopano ya Gawo - Kusintha Malamulo ndi Zokwanira - Zobwezeretsanso Zapamwamba - Zovala za Silicon" zinathandiza kusintha masitayilo apamwamba a silicon kukhala matailosi a ceramic olowera ku Europe.

Kupita patsogolo kwaukadaulo ndi kafukufuku

Ntchitoyi idathana ndi "zovuta zinayi" zomwe zimalumikizidwa ndi zotsalira za sianidi kuchokera ku golide: kumvetsetsa bwino zinthu zapoizoni, kuwongolera ndikulekanitsa machitidwe awo, kubwezeretsanso zinthu zofunika, ndikubwezeretsanso zitsulo. Idayambitsa njira yatsopano yolumikizirana, kuphatikiza ma mineral processing, metallurgy, ndi sayansi yachilengedwe. Kafukufukuyu adatenga gawo lonse lazatsopano, kuyambira pakuvumbulutsa zomwe asayansi amapanga mpaka pakupanga matekinoloje owongolera ndikuchita ziwonetsero zaukadaulo.

Kutsogolo kwa sayansi ndi umisiri, idavumbulutsa mwadongosolo momwe zinthu zapoizoni zimachitikira mu cyanide - zomwe zimakhala ndi zinyalala zoopsa kwambiri. Pamlingo wogwiritsa ntchito, idapanga matekinoloje odzipatula motetezeka ndikutaya zinthu zapoizoni mokhazikika, kutulutsa kogwirizana kwa zigawo zamtengo wapatali, komanso kugwiritsa ntchito kwamtengo wapatali kwa zinthu zotsalira.

Zotsatira Zochititsa chidwi za Industrial Application

Pambuyo pa ntchito ya pulojekitiyi m'mafakitale, kuchuluka kwa zitsulo zamtengo wapatali zomwe zinapezeka kuchokera ku zotsalira za cyanide za golide wokhuthala kunapitirira 90%. Kupambana kumeneku kunapangitsa kuti zinthu za cyanide zitayidwe mosavuta komanso kuti zinthu zonse zomwe zinagwiritsidwa ntchito pogwiritsa ntchito zinthuzi zigwiritsidwe ntchito mokwanira . Chaka chilichonse, pulojekitiyi inkapanga matani pafupifupi 8.000 a lead concentrate ndi copper concentrate, matani oposa 300.000 a high-sulfur concentrate, matani oposa 200.000 a concentrated sulfuric acid ndi oxidized pellets, pafupifupi 700 kg ya golide, ndi matailosi opitilira 90 miliyoni olumikizana a ku Europe. Mwachionekere, pulojekitiyi yabweretsa phindu lalikulu pazachuma, zachilengedwe, komanso chikhalidwe cha anthu.