Calcined petroleum coke yɛ mfiridwuma mu nneɛma a ɛho hia na wɔde di dwuma kɛse wɔ nnwuma te sɛ dade, dade a ɛnyɛ{0}}derous, ne electrolytic aluminum mu. Ne anyinam ahoɔden a ɛkɔ mu yiye, ɔhyew a ɛkɔ mu, ne nnuru a ɛma ɛyɛ den no ma ɛyɛ ade a ɛho hia a ɛboa. Nanso, petroleum coke a wɔayam no yiye a wɔde di dwuma yiye no ho hia kɛse na ama wɔatumi ayɛ nneɛma a wɔyɛ no yiye na wɔayɛ no yiye. Afotusɛm titiriw kakraa bi a ɛbɛboa wɔn a wɔde di dwuma no de ne dwumadi adi dwuma yiye ni.
Nea edi kan no, calcination temperature a wɔhwɛ so no ne ade titiriw a ɛma petroleum coke yɛ papa. Wɔ calcination nhyehyɛe no mu no, ɛsɛ sɛ wɔhwɛ ɔhyew no so katee wɔ 1200℃ne 1350 digrii ntam na ama wɔayi mframa a ɛyɛ hyew afi hɔ yiye na ama carbon a ɛwɔ mu no ayɛ kɛse. Ɔhyew a ɛba fam dodo no betumi ama nneɛma a ɛyɛ hyew no atra hɔ na aka sɛnea ade no ho tew; Ɔhyew a ɛkɔ soro dodo no betumi ama obi ayɛ mmerɛw dodo na watew honam fam nneɛma so. Enti, wɔkamfo kyerɛ sɛ fa fononoo a ɛkorɔn-ɔhyew na hwɛ ɔhyew mu nsakrae wɔ bere ankasa mu.
Nea ɛto so abien no, hwɛ baabi a wɔkora nneɛma so no yiye. Ɛsɛ sɛ wɔde petroleum coke a wɔayam no sie wɔ adekoradan a ɛyɛ kusuu a mframa wom mu na amma nsu antɔ anaasɛ ɛne nneɛma a ɛyɛ acid adi nkitaho na amma nnuru no anyɛ adwuma. Long-bere a wɔde kyerɛ baabi a ɛhɔ yɛ nwini no betumi ama ade no ayɛ basaa na aka sɛnea wɔde di dwuma no. Wɔkamfo kyerɛ sɛ wɔmfa nneɛma a wɔde kyekyere nneɛma a wɔatoto mu nni dwuma na hwɛ nneɛma a wɔakora so no tebea mu daa.
Nea ɛto so abiɛsa, wɔ ntease mu no, di ratio a wɔde ka ho no so. Wɔ mfiridwuma mu dwumadie ahodoɔ mu no, ɛhia sɛ wɔyɛ nsakraeɛ wɔ petroleum coke a wɔde ka ho a wɔde ka ho no mu sɛdeɛ nhyehyɛeɛ no mu ahwehwɛdeɛ pɔtee teɛ. Sɛ nhwɛso no, wɔ electrolytic aluminium adwumayɛ mu no, sɛ wɔde ka ho dodo a, ebetumi aka electrolyte no mu nneɛma a ɛkari pɛ no na ama ahoɔden a wɔde di dwuma no akɔ soro. Wɔkamfo kyerɛ sɛ wɔmfa nhwehwɛmu ahorow a eye sen biara no nkyerɛ dodow a eye sen biara na ama wɔanya sikasɛm mu mfaso a eye sen biara.
Nea ɛka ho no, hwɛ sɛnea nneɛma nketenkete no kɛse te. Nneɛma nketenkete a ɛwɔ calcined petroleum coke mu no nya ne reactivity ne ne honam fam su so nkɛntɛnso tẽẽ. Mpɛn pii no, nneɛma nketenkete a ɛyɛ fɛ no yɛ nea ɛyɛ adwuma kɛse, nanso ebetumi ama mfutuma mu efĩ ayɛ kɛse; Nneɛma nketenkete a ɛyɛ mmerɛw no betumi aka sɛnea nneɛma frafra no. Wɔn a wɔde di dwuma no betumi apaw abɔde nketenkete no kɛse a ɛfata sɛnea ahiade ankasa te na wɔasusuw ho sɛ wɔde mfiri a wɔde hwehwɛ nneɛma mu bedi dwuma de ahyɛ mu den.
Ɛnyɛ sɛ petroleum coke a wɔayam no yiye a wɔde di dwuma yiye no betumi ama nneɛma a wɔyɛ no ayɛ papa nko, na mmom ɛbɛtew ka a wɔbɔ wɔ nneɛma a wɔyɛ ho no so nso. Afotu a ɛwɔ atifi hɔ no a wobetumi ayɛ no yiye no bɛboa nnwumakuw ma wɔde mfiridwuma mu nneɛma a ɛho hia yi adi dwuma yiye.
