Method for preparing adsorbent and curing agent from white clay and oil shale ash

A method for preparing an adsorbent and a curing agent from white clay and oil shale ash comprises the steps as follows: white clay and oil shale ash are mixed and calcined and then subjected to ultrasonic extraction with hydrochloric acid, remaining hydrochloric acid is recovered, and a hydrotalcite-like compound is prepared; filter residues and NaOH are mixed, calcined and placed in a calcined white clay prepared calcium solution; tobermorite is prepared. The white clay serves as an activating agent during activation, an acid recovery agent during acid recovery and a calcium source during synthesis, thus, the waste has multiple purposes. Compared with an original technology, sodium chloride during activation is omitted, recovery of remaining hydrochloric acid is realized, chlorine and alkali liquor are reduced, and no other raw materials are added as compared with the original technology. The limit of sodium chloride recovery is avoided in the actual continuous production process. 种白泥和油页岩灰制备吸附剂和固化剂的方法，制备方法为