摘要
本文以硅藻土和氢氧化钠为原料,在常压下用湿法制备了模数为1.78的水玻璃。用碱溶法制备水玻璃所剩的硅藻土渣经适当酸活化后对油品具有优良的脱色性能。为考察活性渣在工业上应用的可能性,进行了模拟工业生产的脱色和压滤试验,获得满意的结果,达到了硅藻土的全利用目的。
In this paper, the water glass having a mole ratio of SiO_2: Na_2O of about 1.78 has been prepared by the wet-reaction between the diatomaceous earth and sodium hydroxide at atmospheric pressure. The experiments show that the diatomaceous earth residue remained in the reaction is an excellent decolorizing agent for oil, if it is treated with acid before use.The specific surface area of the residue is 125m^2/g, and the decolorization power is 190.
出处
《化学工程师》
CAS
1991年第1期37-40,31,共4页
Chemical Engineer
