- Under this condition, the decolouring ratio of activated clay is up to 90%.
- The activated process conditions,such as acidity,temperature,time,the ration of liquid to solid,soaking time on the decoloring capacity of activated clay are studied.
- Data illustrated that the optimum reaction conditions of TAED were as follow: The microwave power and time are 530w, 35min. the catalyst is activated clay.
- In this paper, 4A molecular sieves,activated clay and aluminum sulfate were prepared with the exhausted acid and alkali in the process of 4A molecular sieves by bentonite.
- In this paper , active clay was applied to adsorb Pb2+ and Cr(VI) in solution.
- The activated clay is the best decolourization reagent to the crude product, and 95% methanol is the best solvent for recrystallization. The 4 MDBT with 96.1% in purity and 61.6% in yield was obtained.
粗产品经活性白土脱色及在 - 2 0℃下用 95%25甲醇重结晶 2次后 ;产品纯度达 96 .;1%25;产率为6 1 6%25。