Coal pitch, dị mkpụmkpụ maka coal tar pitch, coal tar distillation nhazi mgbe mwepụ nke mmiri mmiri distillate fọdụrụnụ, bụ nke a ụdị artificial asphalt, n'ozuzu maka viscous mmiri mmiri, ọkara siri ike ma ọ bụ siri ike, nwa na onwunwu, n'ozuzu nwere carbon 92 ~ 94%, hydrogen banyere 4 ~ 5%. Coal tar pitch bụ isi ngwaahịa na nhazi nke coal tar na bụ ihe na-enweghị ike dochie anya maka mmepụta carbon.
Ebumnuche nke mgbasa tar bụ itinye uche na ogige ndị nwere isi ihe na-esi esi na tar ka ọ bụrụ akụkụ ndị kwekọrọ maka nhazi na nkewa nke ngwaahịa monomer. Ihe fọdụrụ na mmịpụta distillate bụ coal tar pitch, na-aza 50% ~ 60% nke coal tar.
Dị ka ihe dị nro dị iche iche si dị, a na-ekewa asphalt coal n'ime obere okpomọkụ asphalt (asphalt dị nro), ọkara okpomọkụ asphalt (nkịtị asphalt), nnukwu okpomọkụ asphalt (asphalt siri ike) atọ, ụdị nke ọ bụla nwere akara nke 1 na nke 2.
A na-ejikarị bitumen coal eme ihe n'ubi ndị a:
* Mmanụ: Enwere ike ịgwakọta ihe siri ike na mmanụ dị arọ ma ọ bụ mee ka ọ bụrụ slurry, nwere ike rụọ ọrụ nke dochie mmanụ dị arọ.
Agba: Agba nke na-agbakwunye rosin ma ọ bụ turpentine na ihe ndị na-ejuputa mgbe ị na-esi mmanụ maka ụlọ ma ọ bụ ọkpọkọ mmiri. Ọ dabara maka nhazi nchara n'èzí, ihe mkpuchi na akwa mkpuchi mmiri na oyi akwa mkpuchi, enwere ike ịse ya na-ese ya na ụlọ okpomọkụ.
* Owuwu okporo ụzọ, ihe eji arụ ụlọ: a na-agwakọta ya na asphalt petroleum, coal asphalt na petroleum asphalt tụnyere, enwere ọdịiche dị mma doro anya na ogologo ịdịte aka. Igwe asphalt nke coal adịghị mma na plastik, adịghị enwe nkwụsi ike nke okpomọkụ, na-agbaji n'oge oyi, na-adị nro n'oge okpomọkụ, na ịka nká ngwa ngwa.
* Ihe nchikota: Mee electrode, tapawa anode na ngwaahịa carbon ndị ọzọ na-ekekọta, asphalt a na-agbanwekarị. N'ozuzu, a na-akwado asphalt a gbanwere site na asphalt okpomọkụ. Na China, a na-anabatakarị usoro ikpo ọkụ kettle, a na-ejikwa gas dị ka mmanụ ọkụ iji kpoo asphalt na reactor. N'ikpeazụ, a na-enweta asphalt siri ike gbanwere site na nkewa na granulation.
* Asphalt coke: ihe fọdụrụ siri ike nke coal asphalt mgbe oke okpomoku meghariri ma ọ bụ na-egbu oge coking. A na-ejikarị asphalt coke eme ihe dị ka akụrụngwa maka ihe carbon pụrụ iche, nke dị mkpa maka imepụta semiconductor na akụrụngwa mmepụta nke anyanwụ. A na-eji ya eme ihe dị ka ihe elektrọn maka nnụcha aluminom, ihe carbonized maka igwe ọkụ eletrik na igwe ngwaahịa carbon pụrụ iche maka semiconductor.
* coke agịga: asphalt a nụchara anụcha dị nro site na pretreatment akụrụngwa, coking na-egbu oge, usoro ikpo ọkụ dị elu, nke a na-ejikarị na nrụpụta electrode na ngwaahịa carbon pụrụ iche. A na-eji ngwaahịa ndị sitere na akụrụngwa ya mara obere resistivity, ọnụọgụ mgbasawanye ọkụ dị ala, nguzogide okpomọkụ siri ike, ike igwe dị elu na nguzogide oxidation dị mma.
* Carbon fiber: eriri pụrụ iche nwere ihe karịrị 92% carbon ọdịnaya enwetara site na asphalt site n'ịnụcha, ịtụgharị, pre-oxidation, carbonization or graphitization.
* Mmanụ nwere mmetụta, carbon na-arụ ọrụ, carbon ojii na ojiji ndị ọzọ.
Oge nzipu: Nov-30-2022