The invention relates to a method for removing iron and whitening for iron-containing attapulgite clay, comprising the following steps of: (1) selecting ore the content of attapulgite of which is more than 40%, crashing the attapulgite clay, and screening the attapulgite clay by a 100-mesh
sieve,
roasting and activating the attapulgite clay for 1 hour at the temperature of 300 to 700 DEG C; (2) acidulating the attapulgite clay after
roasting treatment by 3 to 8%
sulfuric acid , wherein the
mass ratio of the
sulfuric acid solution to the attapulgite clay is 8:1; placing the attapulgite clay in the
sulfuric acid, stirring and soaking for 4 hours at the temperature of 60 DEG C, then washing for many times by utilizing
distilled water, controlling the pH value to be 6.0 to 7.0,
drying at the temperature of 105 DEG C, and then
grinding, screening by a 80 to 120 mesh
sieve; and (3) preparing the attapulgite clay after acidification to 10 to 30% ore
slurry, placing the ore
slurry into a reaction vessel, adding
oxalic acid with the concentration of 0.5 to 1.5 mol / L and 3 to 5%
titanium trichloride, heating reaction vessel for 8 to 150 minutes, acidulating for 40 to 50 minutes, and centrifuging, washing and filtering after reaction, and
drying at the temperature of 105 DEG C to obtain the white attapulgite clay.