| 摘要 |
<p>Scrap rubber, such as used tyres, inner tubes and belts, is dissolved or suspended in a residue from the processing of crude oil (such as a vacuum distillation residue) and submitted to thermal cracking at 450 to 580 DEG C and a pressure of from 0.5 to 11 atmospheres gauge. The solution or suspension can be produced by extracting particulate rubber with the oil at 100-500 DEG C and the extract subjected to a delayed coking process.</p> |
