<正>Three process units,i.e.the gasification unit,the syngas purification unit and the methanol unit of the coal-to-olefin project at the Shenhua Baotou Plant a
<正> In August 2008 the caprolactam palletizing section at theShijiazhuang Chemical Fiber Company was put on streamsuccessfully at the first attempt during feed
<正> A national invention patent has been granted to the methodfor preparation of the Cu-Zn-Al system catalyst for gas phasehydrogenation of aldehydes developed