Assertion: carbon black | /r/CapableOf | begin as byproduct
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Source sentences:
text: Carbon black begins as a byproduct of what is referred to as partial oxidation, a process during which crude oil residues, such as vacuum residues from crude oil distillation or residues from the thermic cracking process, split due to the effects of the mixture of oxygen and water steam under high temperatures around 1,300 °C.