Aluminium hydroxide gel

摘要: The invention relates to a method for producing stable aluminium hydroxide gel on the basis of sodium aluminate lye which is obtained during production Al2O3 according BAYER method. caustic mol ratio (Na2Ofree/Al2O3) containing adjusted smaller than 1.6. treated with carboxylic acid anhydride, whereby precipitated at temperature below approximately 40 °C, pH value ranges from 8 12. precipitation product and are separated one another. washed dried, amorphous structure obtained.