Amịkpọ pyrite na-emepụta ọtụtụ mba

Pyrite - aha nke ìgwè nke minerals, nke bụ ogige nke ọla si ìgwè nke tin, nickel, ígwè, cobalt, platinum. The ogige nwere ike dị ka sọlfọ na arsenic, na antimony-selenium ma ọ bụ.

Calcination pyrite-atụ aro na feedstock bụ ìhè na agba, dara luster, ekweghị ekwe nke si 3 ka 7. The ígwè ma ọ bụ ígwè pyrite (FeS2 usoro), a makwaara dị ka pyrite, bụ a bara uru ulo oru ngwaọrụ site na nke sọlfọ dioxide (na mmepụta mkpụrụ ndụ). Anya, na ịnweta bụ a uka nke obere kristal nke ziri ezi ọdịdị nke na-acha ntụ ntụ na agba na a ekweghị ekwe nke 6-6.5. Mejupụtara ọcha pyrite mejupụtara banyere 47 percent ígwè na banyere 53 percent sọlfọ ahụ.

Calcination pyrites esonyere Itie a ọnụ ọgụgụ nke chemical Jeremaya mere, nke mbụ nke nke na-enye maka mmụba nke ịnweta ígwè sulfide na sọlfọ na Alụlụụ ala (okpomọkụ banyere 500 C). Mgbe ahụ sọlfọ vapors na-combusted, na-enye sọlfọ dioxide, na ígwè oxide ma ọ bụ sulfide enye mbuaha oxide. Ebe sulphide na-ọkụ incompletely, akpụ a "oriọna," nke pụrụ ịgụnye fayalite na ndị ọzọ na bekee, dabere na-adịghị na feedstock.

Calcination pyrites nwere ike na-emepụta na gas na-adọ a ụfọdụ ego nke SO3, admixed na SO2. Nke a na umi-eme na ụzọ ngwá corrosion, otú iji belata SO3 gas okpomọkụ na tinyekwa nke oku akụrụngwa kwesịrị banyere 850S, na mgbe ahụ ngwa ngwa dobe ka 400C.

Amịkpọ pyrite na-eme n'ọtụtụ mba, dị ka A ihe bụ nke ndị nkịtị. Na Russia, a ịnweta na-mined na Soymenskoy mba, Kalitvinskom ubi, banyere Kushva, nkà mmụta okpukpe osisi na Caucasus, na Ryazan na Smolensk n'ógbè, na n'ebe ndị ọzọ. Ná mba ọzọ, karịsịa ma ama Spanish ego (karịsịa Aguas Tenidas ebe ihe anaghị nwere ọla kọpa, ma nwere elu sọlfọ ọdịnaya) E emegbu na mmepe nke US, France, Norway, Sweden. Na igirigi ibu sulphuric pyrites na ọdịdị mgbe admixed arsenic umu nke umi, nke na-enye a ukwuu na-emerụ ọcha na mmepụta na mkpụrụ ndụ. Ya mere, na-emepụta na-agbalị iji dị ọcha ngwaọrụ. Ka ihe atụ, Russian ụlọ mmepụta ihe na St. Petersburg, na-arụ ọrụ na Swedish pyrites.

Amịkpọ ígwè pyrites (na sọlfọ) bụ na e mere ite-ọku uku, ebe akụrụngwa nri site na ịghasa ma ọ bụ nozulu. Ọzọkwa, ọ na-agwakọta ya na uka nke siri ike ihe onwunwe nke bụ ugbua na nchịkọta (na a fluidized bed na grate, n'okpuru nke ikuku na-ọnọ si n'okpuru), mgbe nke ahụ chemical Jeremaya mere ga-eme, na-enye gas (wepụrụ) na kandụl (wụsara obere pụrụ iche ọkpọkọ). Ọzọkwa si ọkụ ngafe okpomọkụ wepụrụ mmiri jụrụ ọcha.

Calcination pyrite ga-aga nke ọma ma ọ bụrụ na kọntaktị n'elu na ikuku oriri bụ ya zuru ezu elu. Ya mere, ịnweta mgbe esichara n'ime a bibiri ala (na kwesịrị ekwesị ite-ọku uku), mgbe na urughuru size dị nnọọ nta nke ndị oxygen mfe penetrates n'ime uka nke umi. Ke adianade do, okpomọkụ akara dị mkpa n'ihi na minerals na klas a na-emekarị sintered na okpomọkụ n'elu 900 C. Iji dozie nsogbu a na-eji dị ka a nhazi ájá-air ngwakọta, nke na-enye ohere na-amalite ihe na-esure mgbe okpomọkụ ruo 1000 C, nke mma mmepụta arụmọrụ.