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2000年,全球氯乙酸的总产能为60万-70万t/a,西欧产能最大,为30万t/a。我国绝大多数氯乙酸生产企业采用以硫磺粉为催化剂的间歇氯化生产工艺,而国外大都采用连续化氯化反应器,以醋酐为催化剂。今年6月,阿克苏在泰兴建成投产2.5万t/a氯乙酸装置,提高了我国氯乙酸的生产水平。今后市场对高纯度氯乙酸产品的需求将保持旺盛,含量在98%以下的低纯度产品市场将日益缩减。作者认为,国内企业不应将氯乙酸作为精细化学品来生产,而应作为基础化工产品;为提高产品的竞争力,应从提高产品质量、降低生产成本、提高生产技术等方面入手。
In 2000, the total global chloroacetic acid production capacity was 600,000-700,000 t/a and the largest in Western Europe was 300,000 t/a. The vast majority of chloroacetic acid production enterprises in China use intermittent chlorination production process using sulfur powder as a catalyst, and most of them use continuous chlorination reactors with acetic anhydride as a catalyst. In June this year, Aksu completed and put into production of 25,000 t/a chloroacetic acid plant in Taixing, which increased the production of chloroacetic acid in China. In the future, the market demand for high-purity chloroacetic acid products will remain strong, and the market for low-purity products with content below 98% will gradually shrink. The author believes that domestic companies should not use chloroacetic acid as a fine chemical, but should be used as a basic chemical product. To improve the competitiveness of a product, it should start with improving product quality, reducing production costs, and improving production technology.