METHOD FOR RECOVERING TITANIUM COMPONENTS, METHOD FOR PRODUCING TITANIUM DIOXIDE, METHOD FOR PRODUCING ALKALI TITANATE, METHOD FOR PRODUCING FRICTION MATERIALS, AND METHOD FOR PRODUCING TITANIUM TETRACHLORIDE RAW MATERIALS

• Main Authors: TANI SEIICHIRO, HORIKAWA MATSUHIDE
• Format: Patent
• Language: English; Japanese
• Published: 06.07.2023
• Subjects: CHEMISTRY; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F; FERROUS OR NON-FERROUS ALLOYS; INORGANIC CHEMISTRY; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PRETREATMENT OF RAW MATERIALS; PRODUCTION AND REFINING OF METALS; SEPARATION; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

To provide a method for recovering titanium components capable of reducing the chlorine content in recovered titanium components.SOLUTION: A method for recovering titanium components includes: a primary step of supplying a suspension containing the acid-treated titanium hydroxide aggregate into the space in a compression section of a filter press apparatus, filling the suspension containing the acid-treated titanium hydroxide aggregate in the compression section, and compressing the compression section and the suspension at 0.10 to 1.00 MPa by a pressurized filtration chamber to remove water from the suspension to obtain a primary pressed material; a through washing step of performing through washing on the primary pressed material to obtain a through-washed product; and a secondary pressing step of pressing the compression section and the through-washed product through the pressurized filtration chamber to remove water from the through-washed product to obtain an acid-treated cake of titanium hydroxide aggregates.SELECTED DRAWING: Figure 2 【解決課題】回収チタン成分中の塩素分の含有量を低下させることが可能なチタン成分の回収方法を提供する。【解決手段】フィルタープレス装置の圧縮部内の空間に、水酸化チタン凝集物の酸処理物を含む懸濁液を送り、該圧縮部内に該水酸化チタン凝集物の酸処理物を含む懸濁液を充填し、次いで、該加圧式のろ過室によって該圧縮部および該懸濁液を０．１０～１．００ＭＰａで圧搾して該懸濁液から水分を除去し、１次圧搾物を得る１次圧搾工程と、該１次圧搾物を貫通洗浄し、貫通洗浄物を得る貫通洗浄工程と、該加圧式のろ過室によって該圧縮部および該貫通洗浄物を圧搾して該貫通洗浄物から水分を除去して水酸化チタン凝集物の酸処理物のケーキを得る２次圧搾工程と、を有することを特徴とするチタン成分の回収方法。【選択図】図２