项目介绍（简介、技术特点、应用范围、市场前景、效益分析及对投资者要求）

   (中文) 混合二元酸（DBA）又名尼龙酸，是己二酸生产过程产生的副产物。由于其含杂质、水分多，颜色呈绿色或黄褐色，难以回收利用。国外一般将其送进污水处理装置作焚烧或填埋处理；国内有采用重结晶法回收，但回收率低，废水量大。同时，二元醇应用广泛，需求量在逐年上升，传统的生产方法是二羧酸酯加氢.研发的混合二元酸一步直接加氢制二元醇替代传统的二元醇生产方法，具有催化剂易于制备和储存、活性高、寿命长等优点，并且无需酯化所需的特种设备。本项目的研究既可解决混合二元酸的利用问题，又简化了二元醇的制备方法，达到充分利用工业废料，保护环境的目的。采用自制催化剂加氢混合二元酸，各种酸的转化率在100%，对应的二元醇的收率在80%以上。

  (英文).The mixed dibasic acids,which are also called nylon acids,are byproducts of the production process of adipic acid.Because they contion some impurity and a lot of water,they are hard to employ.Generally they are sent to sewage-treatment devices for buning or landfill at abroad;they are recovered by recrystallization method in China,but the recovery rate is low.Diols are very important compounds which are widely used as raw materials for polyester resins, urethane foams,

urethane coating materials, adhesives and the like in various industrial fields. Diols are commercially produced in large amounts.The production of diols is conducted mainly by a method which comprises subjecting a dicarboxylic diester to hydrogenation.There can be mentioneda method in which a dicarboxylic acid (but not an ester thereof) is directly subjected to hydrogenation using a catalyst which can maintain its catalytic activity even in the presence of an acid, to thereby obtain a diol.The Conversion Rate of The mixed dibasic acids is 100% in our reserch,and the yield of the correspondent diol is above 80%.