Книга: Akl Awwad and Nida Salem «Zeolitic tuff: water pollution, agriculture, and building applications»

Производитель: "LAP Lambert Academic Publishing"

Methods for production of a colored metal oxides pigment, nano-structured milky calcium and magnesium hydroxides, and nano-structured philipsite and magnesioferrite from zeolitic tuff. The methods comprises the steps of mixing pulverized zeolitic tuff with hydrochloric acid to form an aqueous colored acid solution. Thereafter, the aqueous acid colored solution is separated from the residue of pulverized zeolitic tuff by decantation and filtration. The aqueous acid colored solution is treated with sodium hydroxide solution and adjusts the pH at 5. 0 to form colored precipitate. The colored precipitate is separated and subjected to drying to obtain brown-red metal oxides pigment. The filtrate also treated with sodium hydroxide and adjusted the pH at ... ISBN:9783846545447

Издательство: "LAP Lambert Academic Publishing" (2011)

ISBN: 9783846545447