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截至11月19日,长炼研发的具有自主知识产权的丙烯双氧水制环氧丙烷技术,获得3项国际专利授权、11项国内专利授权,打破了国外对这一技术的垄断。一直以来,我国约80%的环氧丙烷都是通过传统氯醇法制造,每吨产品废水排放近50吨,废渣排放在2吨以上。2011年,国家原则上停止审批氯醇法生产环氧丙烷新项目。国外少数企业和机构拥有丙烯双氧水法制环氧丙烷技术,但工艺引进难度极大,且价格昂贵。对此,长炼与石科院、长岭石化科技开发公司紧密
As of November 19, Changlian’s proprietary propylene oxide hydroperoxide technology with independent intellectual property rights won three international patents and 11 domestic patents, breaking the monopoly of foreign technology. All along, about 80% of our country’s propylene oxide is manufactured by the traditional chlorohydrin method, with the discharge of nearly 50 tons of waste water per ton of product and the waste residue of 2 tons or more. In 2011, countries in principle stopped approving the new project of producing chlorohydrin propylene oxide. A small number of foreign enterprises and institutions have propylene hydrogen peroxide propylene oxide technology, but the introduction of the process is extremely difficult and expensive. In this regard, long refining and Stone Institute, Changling Petrochemical Technology Development Company close