Nnyocha na Mgbochi Arsenic na Sulfur-Iron Enrichment na Cyanidation Tailings

Okwu Mmalite

Ọdụdụ Cyanidation emepụtara n'oge usoro mmịpụta na ụlọ ọrụ igwe na-ebute nnukwu ihe ịma aka gburugburu ebe obibi n'ihi nnukwu ọdịnaya arsenic ha. Na mgbakwunye na nchegbu gburugburu ebe obibi, ọdụdụ ndị a na-anọchite anya ihe enyemaka nke abụọ nwere ike ime. Ya mere, ọ dị oke mkpa ịzụlite ụzọ dị irè maka ime ka ihe ndị bara uru dị ka sọlfọ na ígwè na-ebelata n'otu oge ma na-ebelata ọdịnaya arsenic. Ọmụmụ ihe a gbadoro ụkwụ na ya Cyanidation ọdụdụ site na smelter, na-achọ imezu ebumnobi ndị a site na usoro ịkwọ ụgbọ mmiri a haziri nke ọma.

Usoro

Ihe Nlereanya

A na-enweta ọdụ ọdụdụ cyanidation nke a na-eji n'ọmụmụ ihe a site na smelter kpọmkwem. Amara ihe nlele mbụ iji ghọta ihe mejupụtara elemental ha na akụrụngwa mineral tupu ha aga n'ihu na nnwale flotation.

Nnwale flotation

Sulfuric acid (H_2SO_4) bụ onye na-arụ ọrụ dị ka onye na-arụ ọrụ sọlfọ. Ejikọtara ngwakọta nke sodium humate na calcium hypochlorite (Ca(ClO)_2) dị ka ihe mgbochi arsenic. Emere nnwale flotation ọtụtụ n'okpuru ọnọdụ ejiri nlezianya chịkwaa. Usoro nnwale ahụ, gụnyere reagent onunu ogwu, njupụta pulp, na oge ịkwọ ụgbọ mmiri, ka emebere ya iji nweta nsonaazụ nkewa kacha mma.

Usoro nyocha

A na-eji nyocha Electron microscope (SEM) na X-ray Diffraction (XRD) nyochaa ngwaahịa flotation. A na-eji SEM mee ihe iji hụ ọdịdị ọdịdị elu na njirimara nke ihe nlele ahụ. Nyocha XRD nyere aka chọpụta usoro nke mineralogical dị na nlele, na-enye nghọta na ọnọdụ arsenic na-eme n'ime ọdụ ọdụ cyanidation.

Results

Nnwale flotation ahụ gosipụtara nsonaazụ dị ịrịba ama. Ọkwa sọlfọ dị na ntinye ruru ihe karịrị 48%, ebe ọkwa arsenic belatara nke ọma ka ọ bụrụ ihe na-erughị 0.2%. Nsonaazụ ndị a na-egosi ịdị irè nke ndị reagents ahọpụtara yana usoro kachasị mma nke flotation iji nweta ebumnuche abụọ nke sọlfọ-ígwè ịba ọgaranya na mwepụ arsenic.

Nkwurịta

Ọnọdụ ọnọdụ nke Arsenic

Site na nyocha SEM na XRD, a na-ekpebi ọnọdụ arsenic na-eme na ọdụ cyanidation. Achọpụtara arsenic na-ejikọta ya na ụfọdụ mineral, nke na-emetụta omume ya n'oge usoro flotation. Ịghọta ọnọdụ ọnọdụ a dị oke mkpa maka ịmepụta atụmatụ nkewa ezubere iche karịa.

Ihe kpatara nkewa siri ike nke sulfur na arsenic

Ọmụmụ ihe ahụ mekwara nyocha mbụ nke ihe kpatara nkewa siri ike nke sọlfọ na arsenic na ọdụ ọdụdụ cyanidation. Ihe ndị dị ka mgbasa ozi ọma nke mineral na-ebu arsenic, mmekọrịta dị n'elu n'etiti mineral dị iche iche, na ihe mgbagwoju anya dị mgbagwoju anya nke ọdụdụ ahụ nyere aka na ihe isi ike a. Ojiji nke (H_2SO_4), sodium humate, na (Ca(ClO)_2) nchikota belatara ihe ịma aka ndị a ruo n'ókè ụfọdụ, dị ka egosipụtara site na ezigbo nsonaazụ flotation.

mmechi

Ọmụmụ ihe a rụpụtara nke ọma usoro ịkwọ ụgbọ mmiri maka ime ka sọlfọ-ígwè na-eme ka ọ baa ọgaranya na iwepụ arsenic na ọdụ ọdụdụ cyanidation. Ojiji nke (H_2SO_4) dị ka sọlfọ activator na ngwakọta nke sodium humate na (Ca (ClO) _2) dị ka arsenic inhibitor gosipụtara irè. Nyocha SEM na XRD nyere nghọta bara uru banyere ọnọdụ ọnọdụ arsenic na ihe kpatara nkewa sọlfọ-arsenic siri ike. Nchọpụta ga-eme n'ọdịnihu nwere ike ilekwasị anya n'ịkwalite usoro ịkwọ ụgbọ mmiri, ịchọpụta ihe ndị ọzọ reagents, na imeziwanye arụmọrụ nke mgbake akụ na nchekwa gburugburu ebe obibi.