公开(公告)号：KR100523291B1

公开(公告)日：2005-10-25

申请号：KR1020030013603

申请日：2003-03-05

Applicant: 한국화학연구원

Inventor： 강윤찬 ,  이교광 ,  박희동

IPC: C01G23/00 ,  B82B3/00

Abstract: 본 발명은 나노크기 입자를 가진 티타네이트계 분말의 제조방법에 관한 것으로서, 더욱 상세하게는 입자가 나노크기를 갖는 티타네이트계 분말 제조를 위한 전구체 용액에 유기카복실산, 글리콜 또는 다가알콜 등의 유기물질들을 적정비율로 첨가하고 분무 열분해법에 의해 액적으로 분무하여 매우 속이 빈 형태의 전구체 분말들을 제조하고, 이를 소성공정 및 밀링에 의한 분쇄공정을 통해 비응집성의 나노 티타네이트계 분말로 대량 합성하는 방법에 관한 것이다.

公开(公告)号：KR1020040078759A

公开(公告)日：2004-09-13

申请号：KR1020030013603

申请日：2003-03-05

Applicant: 한국화학연구원

Inventor： 강윤찬 ,  이교광 ,  박희동

IPC: C01G23/00 ,  B82B3/00

CPC classification number: C01G23/003 ,  C01P2004/64

Abstract: PURPOSE: A method for preparing a nano-sized titanate-based powder and a nano-sized titanate-based powder prepared by the method are provided, to produce a non-cohesive nano-sized titanate-based powder massively. CONSTITUTION: The method comprises the steps of dissolving a titanate-based precursor material, an organic carboxylic acid and an additive selected from a glycol and polyvalent alcohols in a solvent to prepare a titanate-based precursor solution; generating a liquid drop from the titanate-based precursor solution; and drying the liquid drop, sintering the dried one and milling the sintered one to prepare a titanate-based powder. Preferably the titanate-based precursor material is at least one selected from the group consisting of a titanium alkoxide, a titanium chloride, a titanium hydroxide and a titanium oxide; the solvent is water, an alcohol or a weak acid aqueous solution; the glycol is at least one selected from the group consisting of ethylene glycol, propylene glycol, diethylene glycol, dipropylene glycol, polyethylene glycol, polypropylene glycol, triethylene glycol, tetraethylene glycol and butanediol-1,4-hexylene glycol oxylene glycol; the organic carboxylic acid is at least one selected from the group consisting of citric acid, malic acid, mesotartaric acid, pyruvic acid and meconic acid.

Abstract translation: 目的：提供一种制备纳米尺寸钛酸酯基粉末和通过该方法制备的纳米尺寸钛酸酯基粉末的方法，以大量生产非粘性纳米尺寸的钛酸酯基粉末。 方案：该方法包括将钛酸酯基前体材料，有机羧酸和选自二元醇和多元醇的添加剂溶解在溶剂中以制备钛酸酯基前体溶液的步骤; 从钛酸盐前体溶液中产生液滴; 干燥液滴，烧结干燥后的粉末，研磨烧结后的粉末。 钛酸酯类前体材料优选为选自钛醇盐，氯化钛，氢氧化钛和氧化钛中的至少一种; 溶剂为水，醇或弱酸水溶液; 二醇是选自乙二醇，丙二醇，二甘醇，二丙二醇，聚乙二醇，聚丙二醇，三甘醇，四甘醇和丁二醇-1,4-亚己基二醇二醇的至少一种; 有机羧酸是选自柠檬酸，苹果酸，间酒石酸，丙酮酸和肉豆蔻酸中的至少一种。