At present, most of domestic producers of chlorinated rubber(CR) use carbon tetrachloride(CTC) as process agent, which results in a large amount of CTC emission to the air.

• 目前，我国的氯化橡胶生产厂家绝大多数采用四氯化碳溶剂法生产工艺，每年发散大量的四氯化碳溶剂。