目前世界聚醚生产主要掌握在几家大型跨国公司手中,装置规模普遍较大。2005年世界聚醚总产能754.3万吨,总产量578万吨。我国约有聚醚生产厂家30多家,总生产能力超过100万吨。尽管产能逐年提高,但由于原料的供应不足,开工率一直很低,一般维持在40%-60%,因此国内总产量不高,对进口的依赖性较强。 The current world production of polyether mainly in the hands of several large multinational corporations, the device size is generally larger. In 2005, the world total polyether production capacity was 7.543 million tons with a total output of 5.78 million tons. There are about 30 polyether manufacturers in China, with a total production capacity of more than 1 million tons. Although production capacity has been increasing year by year, operating rates have been very low at 40% -60% due to insufficient supply of raw materials. As a result, domestic output is not high and its dependence on imports is strong.