四氯化碳是破坏臭氧层的物质之一,又是生产更具破坏性氟氯烃的重要原料。按照1990年6月《蒙特利尔公约伦敦修正案》的规定,西方发达国家必须在2000年1月1日前停止生产和销售四氯化碳,发展中国家受限时间可再晚十年,但又规定,为满足其他用途及发展中国家生产氟氯烃的需要, Carbon tetrachloride is one of the substances that destroy the ozone layer and is an important raw material for producing more destructive HCFCs. According to the provisions of the London Amendment to the Montreal Convention of June 1990, Western developed countries must stop production and sales of CTC by January 1, 2000. The limited time for developing countries may be ten years later, but To meet the needs of other uses and HCFC production in developing countries,