METHOD FOR PRODUCING TICL4 AND METHOD FOR PRODUCING SPONGE TITANIUM

• Main Authors: YAMANAKA SATORU, MURAYAMA RYOJI, YAMAMOTO HITOSHI
• Format: Patent
• Language: English; Japanese
• Published: 10.10.2019
• Subjects: CHEMISTRY; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F; FERROUS OR NON-FERROUS ALLOYS; INORGANIC CHEMISTRY; METALLURGY; PRETREATMENT OF RAW MATERIALS; PRODUCTION AND REFINING OF METALS; TREATMENT OF ALLOYS OR NON-FERROUS METALS

To prevent deterioration of rectification performance of a rectification tower.SOLUTION: A method for producing TiClis provided that includes: a crude TiClgas generation step of generating a crude TiClgas in a chlorination furnace; a liquefaction step of liquefying generated crude TiClgas to obtain a crude TiClliquid; a preheating step of preheating the crude TiClliquid; a degasification step of degasifying the preheated crude TiClliquid; and a rectification step of rectifying the crude TiClliquid in a rectification tower, and the crude TiClliquid is heated to 90 to 130°C in the preheating step.SELECTED DRAWING: Figure 1 【課題】精留塔の精留能力劣化を防止すること。【解決手段】ＴｉＣｌ4の製造方法であって、前記ＴｉＣｌ4の製造方法は塩化反応炉において粗ＴｉＣｌ4ガスを生成する粗ＴｉＣｌ4ガス生成工程と、生成した前記粗ＴｉＣｌ4ガスを液化して粗ＴｉＣｌ4液を得る液化工程と、前記粗ＴｉＣｌ4液を予備加熱する予備加熱工程と、予備加熱した前記粗ＴｉＣｌ4液を脱気する脱気工程と、及び、精留塔にて前記粗ＴｉＣｌ4液を精留する精留工程と、を含み、前記予備加熱工程では前記粗ＴｉＣｌ4液を９０〜１３０℃に加熱するＴｉＣｌ4の製造方法。【選択図】 図１