Ferrochrome, ma ọ bụferrochromium(FeCr) bụ ụdị ferroalloy, ya bụ, alloy nke chromium na ígwè, na-enwekarị 50 ruo 70% chromium site n'ịdị arọ.

A na-emepụta Ferrochrome site na mbelata carbothermic eletriki nke chromite.A na-emepụta ọtụtụ n'ime mmepụta ụwa na South Africa, Kazakhstan na India, bụ ndị nwere nnukwu akụrụngwa chromite n'ime ụlọ.Ọnụ ego na-abawanye na-abịa site na Russia na China.Mmepụta nke ígwè, karịsịa nke igwe anaghị agba nchara nwere ọdịnaya chromium nke 10 ruo 20%, bụ ndị ahịa kasị ukwuu na ngwa ngwa nke ferrochrome.

Ojiji

Ihe karịrị 80% nke ụwaferrochromea na-etinye n'ọrụ na mmepụta nke igwe anaghị agba nchara.Na 2006, 28 Mt nke igwe anaghị agba nchara.Igwe anaghị agba nchara na-adabere na chromium maka ọdịdị ya na iguzogide corrosion.Nkezi ọdịnaya chrome n'ime igwe anaghị agba nchara bụ ihe ruru.18%A na-ejikwa ya gbakwunye chromium na ígwè carbon.FeCr sitere na South Africa, nke a maara dị ka "charge chrome" ma mepụta site na Cr nwere ore nwere obere carbon ọdịnaya, na-ejikarị emeputa igwe anaghị agba nchara.N'aka nke ọzọ, carbon FeCr dị elu nke sitere na ọla dị elu nke dị na Kazakhstan (n'etiti ebe ndị ọzọ) na-ejikarị eme ihe na ngwa ndị ọkachamara dị ka ígwè ọrụ injinia ebe oke Cr / Fe dị elu na ọkwa kacha nta nke ihe ndị ọzọ (sulfur, phosphorus, titanium wdg). .) dị mkpa na mmepụta nke okokụre ọla na-ewere ọnọdụ na obere ọkụ ọkụ ọkụ ọkụ tụnyere nnukwu ọnụ ọgụgụ mgbawa ọkụ.

Mmepụta

Ferrochrome mmepụta bụ n'ezie ọrụ mbelata carbothermic na-ewere ọnọdụ na oke okpomọkụ.Chromium ore (ihe oxide nke Cr na Fe) na-ebelata site na coal na coke ka ọ bụrụ ígwè-chromium alloy.Okpomọkụ maka mmeghachi omume a nwere ike isi n'ụdị dị iche iche pụta, mana ọ na-abụkarị site na arc eletrik kpụrụ n'etiti ọnụ ọnụ nke electrodes na ala nke ọkụ na ọkụ ọkụ.Arc a na-emepụta okpomọkụ dị ihe dịka 2,800 Celsius (5,070 Celsius F).N'ime usoro mgbaze, a na-eri nnukwu ọkụ eletrik, na-eme ka mmepụta ihe dị oke ọnụ na mba ndị na-akwụ ụgwọ ọkụ.

Ịpị ihe sitere na ọkụ na-eme obere oge.Mgbe ferrochrome gbazere ezuru ezukọta n'ime ọkụ ọkụ, a na-agbawa oghere mgbata ahụ ma mmiri nke igwe a wụrụ awụ na slag na-agbada n'otu ebe a na-asọ asọ n'ime oyi ma ọ bụ ladle.Ferrochrome na-esiwanye ike na nkedo buru ibu nke a na-echipịa maka ọrịre ma ọ bụ megharịa ya ọzọ.

A na-ekewa Ferrochrome n'ozuzu site na ọnụọgụ carbon na chrome ọ nwere.Ihe ka ukwuu n'ime FeCr emepụtara bụ “charge chrome” sitere na South Africa, yana carbon dị elu bụ akụkụ nke abụọ kachasị ukwuu na-esote obere akụkụ nke obere carbon na ihe dị n'etiti.