Main purpose: This product is designed for the production of antibiotics and some medicine production process developed special bleaching refining alumina. China is now mainly used for the production of cefazolin, cefotaxime sodium masonry, cephradine, celery and other cephalosporin antibiotics and medicine to flavonoids, notoginsenoside matrine and other production processes bleaching, chromatography. In the bleaching refining effect, regeneration capacity, service life, and the permeation rate and other imported products tested under the same conditions, the same results compare performance, superior to the imported products in the individual indicators. Further, in the chromatography, the drying process is also widely used.