염화암모늄을 새로운 염소원으로서 사용할 수 있는 가능성을 조사하고자 함티탄자철광과 염화암모늄의 반응을 추구하였다. 이 반응에서 함티탄자철광의 성분중 철산화물만이 선택적으로 염소화되었으며 적정반응 조건은 함티탄자철광에 대한 염화암모늄의 무게비 3.5, 반응온도 325℃, 반응시간 50min., N₂가스의 유량 30㎤/min(반응관의 ID-2.8㎝), 함티탄자철광의 입도 - 140mesh였다. 이 조건하에서 함티탄자철광중의 철산화물은 Fe(III)산화물이 94.8%, Fe(II)산화물이 25.2% 철염화물로 전화되었으며 이 염소화된 철분을 물로 침출, 제거하므로서 얻어진 잔사는 X-선회절분석결과 TiO₂ 함량 45.18%의 ilmenite였다.

The reaction between titaniferous magnetite and NH₄Cl was experimentally investigated in order to find the possility of NH₄Cl being an alternative chlorine source. Iron oxides among the components of titaniferous magnetite was selectively chlorinated in this reaction. The optimum conditions for this chlorination were that NH₄Cl weignt ratio to the titaniferous magnetite 3.5, reaction temperature 350℃, reaction time 50min., N₂ gas flow rate 30 ㎤/min (reactor size: ID=2.8 ㎝) and particle size of titaniferouse magnetite -140mesh. Under above mentioned conditions, the conversions of iron oxide to iron chloride were 94.8% for iron (III) oxide and 25.2% for iron (II) oxide, respectively. The analysis of the residues left after the water leaching of the chlorinated product at these reaction conditions showed that the content of TiO₂ was 45.18 % and the x-ray diffraction pattern showed ilmenite.