Na ụwa nke gold Ngwuputa, na Cyanide mmịpụta Usoro bụ usoro dị oke egwu a na-eme iji nwetaghachi ọla edo site na ọla. Ọ bụ ezie na ọtụtụ nwere ike ịmara okwu ahụ bụ "cyanide," a na-elegharakarị mgbagwoju anya nke ngwa ya na mmịpụta ọla edo. Edemede a bu n'obi ime ka a mata ihe ọmụma nkịtị gbara ya gburugburu sodium cyanide na ọrụ ya na Usoro mmịpụta ọla edo, n'ịhụ na nghọta zuru oke nke usoro a dị mkpa.
Usoro mwepu ọla edo nke Cyanide
Usoro mmịpụta ọla edo cyanide na-agụnye usoro dị iche iche dị mkpa, nke ọ bụla na-achọ njikwa ziri ezi nke parampat dị iche iche iji hụ na nsonaazụ kacha mma. Ihe ndị bụ isi a ga-enyocharịrị gụnyere mkpokọta cyanide, ntinye oxygen, alkalinity, na oge achọrọ maka mgbaze. Ihe ndị a dị oké mkpa maka imezu àgwà a chọrọ mgbake ọla edo.
nkuzi: Nzọụkwụ mbụ na usoro a bụ leaching, ebe a na-agbaze ọla edo siri ike na ngwọta cyanide nwere oxygen. Ngwọta a na-enye ohere iji wepụ ọla edo site na ọla, na-ekewapụ ya nke ọma na mineral ndị ọzọ.
Na-asa: Na-esote leaching, nzọụkwụ na-esote bụ ịsa ahụ. Usoro a na-agụnye ịweghachi ihe ngwọta nwere ọla edo mgbe ịsachara ma sachapụ ọla edo gbazere n'elu ihe ndị ahụ. Ebumnuche bụ iji nweta nkewa nke mmiri siri ike, hụ na ọla edo dịpụrụ adịpụ nke ọma na ihe fọdụrụ.
Nnọchi: Nzọụkwụ ikpeazụ n'ime usoro mmịpụta bụ ngbanwe, ebe a na-eji zinc ọla eme ihe ngwọta nwere ọla edo. Nzọụkwụ a na-ebelata ma na-ebuli ọla edo, na-enye ohere maka mgbake ya n'ụdị siri ike.
Ngwakọta igodo na mwepu ọla edo Cyanide
Ogige abụọ bụ isi na-arụ ọrụ dị mkpa na usoro mmịpụta ọla edo cyanide: cyanide na alkali nchebe.
1.Cyanide
Cyanide bụ isi nkuku nke usoro leaching. Na ngwa mmepụta ihe, a na-eji ọtụtụ ụdị cyanide eme ihe, gụnyere Potassium cyanide (KCN), sodium cyanide (NaCN), Calcium cyanide [Ca (CN) 2], na Ammonium cyanide (NH4CN). N'ime ndị a, sodium cyanide bụ nke a na-ejikarị eme ihe n'ihi ịdị irè ya na nnweta ya.
Sodium cyanide bụ ntụ ntụ ọcha na-egbu egbu nke a na-arụpụtakarị n'ụdị okirikiri ma ọ bụ mgbochi maka ịdị mfe njikwa. Ikike ya dị ka onye na-agbapụta mmiri na-eme ka ọ bụrụ ihe dị mkpa na usoro mmịpụta ọla edo, mana ọ na-achọkwa usoro nchekwa nchekwa siri ike iji belata ihe egwu ndị metụtara nsi ya.
2. Alkali nchekwa
Ọrụ nke alkali nchebe na usoro mmịpụta ọla edo cyanide enweghị ike ịkọwapụta. Ebumnuche bụ isi nke ịgbakwunye alkali nchebe bụ ịnọgide na-enwe nkwụsi ike nke ngwọta cyanide ma belata ọnwụ nke cyanide site na hydrolysis. Nke a dị mkpa karịsịa n'ịhụ na usoro ịhịa aka n'ahụ na-anọgide na-arụ ọrụ nke ọma ma dị irè.
A na-agbakwunye alkali nchebe n'oge oge ịcha mmiri ma ọ bụ n'oge a na-egwe ọka cyanide. N'ọnọdụ ebe ihe mejupụtara ọla dị mgbagwoju anya ma nwee mineral dị ka pyrrhotite, nke nwere ike imebi usoro cyanide, mgbakwunye nke alkali nchebe na-enyere aka na oxidation ma ọ bụ ọdịda nke mineral ndị a na-emerụ ahụ. Ọ bụghị naanị na nke a na-eme ka arụmọrụ nke usoro mmịpụta ahụ dịkwuo mma kamakwa ọ na-enye aka na nchekwa na nkwado gburugburu ebe obibi nke ọrụ ahụ.
mmechi
Usoro mmịpụta ọla edo cyanide bụ usoro ọkaibe nke chọrọ nghọta miri emi nke mmekọrịta kemịkalụ dị iche iche na oke ọrụ. Sodium cyanide, dị ka akụkụ bụ isi, na-ekere òkè dị mkpa na mgbake ọla edo na ọla. Site n'ịchịkwa ihe ndị dị ka mkpokọta cyanide, ọkwa oxygen, alkalinity, na oge nhazi, ọrụ Ngwuputa nwere ike ịkwalite mbọ ha na-amịpụta ọla edo.
Ọzọkwa, mkpa nke alkali na-echebe na ịkwado ngwọta cyanide na ibelata mmetụta nke mineral ndị na-emerụ ahụ enweghị ike ileghara anya. Ka ụlọ ọrụ na-egwuputa ihe na-aga n'ihu na-etolite, nghọta zuru oke nke usoro na ogige ndị a ga-adị mkpa maka ịhụ na omume mmịpụta ọla edo dị mma, dị mma na gburugburu ebe obibi.
Na nchịkọta, ebe a na-elekarị sodium cyanide site na oghere nke nsi ya, ihe ọ pụtara na usoro mmịpụta ọla edo bụ ihe kacha mkpa. Site n'ịghọta ihe ọmụma a na-ahụkarị gbasara usoro a, ndị na-ahụ maka ọrụ na-egwupụta akụ nwere ike ịnyagharịa mgbagwoju anya nke mgbake ọla edo ma tinye aka na ọganihu na-adịgide adịgide nke omume Ngwuputa.
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