| abstract |
The present invention relates to a novel Mg-Ti-Al composite metal hydroxide of Formula 1 and a method for preparing the same, wherein the Mg-Ti-Al composite metal hydroxide particles constitute the Mg-Ti-Al composite metal hydroxide of Formula 1 It can be obtained by sonicating a solution containing magnesium salt and titanium salt in the proportion of metal elements and reacting the solution containing aluminum salt at high temperature and high pressure, and has excellent halogen trapping ability. Excellent effect. [Formula 1] Mg a Ti b Al c (OH ) d (A 1 n-) e (A 2 m-) f · xH 2 O Wherein A 1 n- and A 2 m- are n and m valent anions, respectively, a / c is 1 to 5, and b, c, d and x are 0 <b <5, 0 <c≤5, 0 <d, 0≤x <5, and e and f are numbers satisfying the condition of 1≤ne + mf≤5. |