水溶液中硅酸溶解和胶结的实验研究

EXPERIMENTAL RESEARCH ON SOLUTION AND CEMENTATION OF SILICIC ACIDIN AQUEOUS SOLUTION

本文研究了几种不同酸pH值对硅酸胶结的影响。结果表明,草酸浓度增大时,硅酸胶结速度变缓,至pH3～4时,硅酸不再胶结;而HCl浓度增大,虽然胶结速度变缓,但最终仍胶结。

ABSTRACT: This paper undertakes the research of the effect of acids with various PH val-ues on silica cementation. The results show that the rate of silica cementation slowed when increasing the concentration of oxalic acid and remained stable at pH = 3-4.However,though cementation rate slowed when increasing the concentration of hydrochloric acid,silica cemen-tated finally.