Dabarun Leaching Cyanidation don Babban Sulfur da Babban Arsenic Gold Ores

Maganin babban sulfur da ma'adinan zinari mai arsenic ya daɗe yana fuskantar kalubale a fannin sarrafa ma'adinai. Saboda hadadden tsarin ma'adinai da babban abun ciki na ƙazanta, hanyoyin cyanidation na gargajiya sau da yawa suna gwagwarmaya don fitar da zinari da azurfa yadda ya kamata. Wannan labarin zai ba da cikakken bayani game da hanyoyin leaching da yawa da suka dace da manyan sulfur da manyan arsenic na zinariya, da nufin taimakawa masu aikin hakar ma'adinai su fahimci da amfani da waɗannan fasahohin.

Halayen High-sulfur da High-Arsenic Gold Ores

Manyan sulfur da manyan arsenic na zinariya yawanci sun ƙunshi adadi mai yawa na sulfides da arsenides. Waɗannan ƙazanta ba wai kawai suna shafar ingancin leaching na zinari da azurfa ba har ma suna haifar da babbar barazana ga muhalli. Sabili da haka, lokacin da ake hulɗa da irin wannan ma'adinai, ana buƙatar tsari na musamman don inganta yawan dawo da zinariya da azurfa da kuma rage tasirin muhalli.

Hanyar Roating Oxidative

Hanyar gasawar Oxidative hanya ce da aka saba amfani da ita don magance babban sulfur da manyan ma'adinan zinare na arsenic. Wannan hanya tana sanya sulfur da arsenic a cikin ma'adinan zuwa gaseous ko daskararrun oxides ta hanyar gasa mai zafi, ta haka ne ke cire datti. Bayan gasa, tsarin ma'adinan ya zama sako-sako, wanda ya fi dacewa ga leaching na zinariya da azurfa.

Takamaiman matakai na hanyar gasawar oxidative sune kamar haka:

1. Ana yin gasa mai zafi mai zafi a kan babban sulfur da babban arsenic na zinariya da aka samu ta hanyar iyo don cire sulfur da arsenic.

2. Gasasshen ma'adinan ana shayar da shi mai yawan acid pretreatment wanka don narkar da mafi yawan ƙazanta.

3. Sannan ana yin amfani da sinadarin cyanidation wajen cire sinadarin, inda ake narkar da zinare da azurfa ta hanyar cyanide sannan a shiga cikin ruwan.

Hanyar Leaching Thiourea

Hanyar leaching na thiourea wani tsari ne mai tasowa mai ƙarancin guba, musamman don magance ma'adinan gwal tare da babban abun ciki na arsenic da sulfur. Thiourea a cikin maganin acidic zai iya narkar da zinariya da azurfa da sauri, yana da ƙananan guba, kuma yana da sauƙi don sake farfadowa. Idan aka kwatanta da hanyar cyanidation na gargajiya, hanyar thiourea ba ta da hankali ga abubuwan ma'adinai irin su antimony, arsenic, jan karfe, da sulfur. Don haka, yana da fa'ida a bayyane yayin da ake kula da ma'aunin sulfur da manyan arsenic na zinariya.

Takaitattun matakai na hanyar leaching na thiourea sune kamar haka:

1. Sulfide mai ɗauke da zinari yana samuwa ta hanyar iyo.

2. An ɗora ma'auni na iyo tare da maganin thiourea don dawo da zinariya da azurfa.

3. Zinare da azurfa a cikin ruwan da ke fitar da ruwa suna shaƙa ta hanyar resin ion ko Carbon da aka kunna sannan a yi musu magani daga baya.

Hanyar Leaching Heap

Hanyar zubar da ruwa ta Heap hanya ce ta zubar da ruwa mai ƙarancin farashi da kuma sauƙin aiki, wadda ta dace da maganin ma'adinan zinariya masu ƙarancin sulfur da arsenic masu yawan gaske. Wannan hanyar ta ƙunshi tara ma'adinan a wurin da aka riga aka shirya da kuma fesawa ko kuma rufe shi da maganin cire ruwa mai cyanide, wanda ke ba da damar maganin ya ratsa ta cikin ma'adinan ya kuma samar da tasirin cire ruwa.

Takamammen matakai na hanyar leaching heap sune kamar haka:

1. Ana murƙushe ma'adinan zuwa wani ƙayyadaddun ƙwayar ƙwayar cuta sannan a tattara su akan wurin.

2. Ana fesa ma'adinin ko kuma a shafe shi tare da maganin leaching cyanide, kuma maganin yana ratsa cikin takin don samar da tasirin leaching.

3. Ana tattara ruwan da ke fitar da ruwa, sannan a samo zinare da azurfa ta hanyar amfani da resins na musayar ion, ko kuma amfani da carbon da aka kunna , ko kuma maye gurbin zinc.

Hanyar Leaching Mai Rushewa

Hanyar leaching da aka zuga ita ce ingantacciyar hanyar leaching wacce ta dace da kula da ma'adinan da ba a so ko sulfide tama calcines. Wannan hanyar tana amfani da maganin sulfuric acid mai daɗaɗɗa sosai don fitar da ma'adinan a cikin tankin leaching sanye take da na'urar motsa jiki. Saboda isasshen motsawa, saurin leaching yana da sauri, kuma yawan leaching yana da yawa.

Takamaiman matakan hanyar leaching da aka zuga sune kamar haka:

1. Ana murƙushe ma'adinan zuwa ƙananan barbashi (-75um yana lissafin kashi 90%) sannan a saka shi cikin tankin leaching.

2. Ana yin leaching mai ruɗi tare da ingantacciyar hanyar sulfuric acid. Matsakaicin jan ƙarfe a cikin maganin leaching yana da girma sosai kuma ana iya amfani dashi kai tsaye don samun wutar lantarki ta jan ƙarfe.

3. Maganin leaching yana fuskantar magani na gaba don dawo da zinare da azurfa.

Kammalawa

Maganin sulfur mai girma da arsenic na zinariya yana buƙatar ɗaukar nauyin tsari na musamman don inganta yawan dawo da zinariya da azurfa da kuma rage tasirin muhalli. Hanyar gasasshiyar iskar oxygen, Hanyar leaching na thiourea, hanyar tudun ruwa, da hanyar zuga duk hanyoyin magani ne masu inganci.