粉状活性炭 meaning in English

powdered activated carbon

Main products ： wood activated carbon ( powdered ) , wood activated carbon ( granular ) , nut shell activated carbon , coal activated carbon
主导产品：木质粉状活性炭、木质颗粒活性炭、果壳类活性炭、煤质活性炭。
At the same time an apparatus of zone melting is designed , the method of zone melting is used to purify the purified product of recrystalizing . after purification , the homogeneity and stability of the purified product of antioxidant d and bht are examined by high performance liquid chromatography ( hplc )
实验研究结果：防老剂d重结晶提纯工艺为：每次取10g工业品防老剂d ，经过碱洗后，去离子水洗涤至中性，溶于100ml乙醇中，同时用粉状活性炭( 1g次)脱色、过滤、母液静置2h后，再放入冰箱结晶2h 。