公开(公告)号：KR1020000026019A

公开(公告)日：2000-05-06

申请号：KR1019980043371

申请日：1998-10-16

Applicant: 한국과학기술연구원

Inventor： 한경섭 ,  배동식 ,  노준석 ,  최상흘 ,  조승범

IPC: C01G49/00

CPC classification number: C01G49/08 ,  C01P2002/72 ,  C01P2004/04 ,  C01P2004/32 ,  C01P2004/41 ,  C01P2004/61 ,  C01P2004/62

Abstract: PURPOSE: Provided are methods for synthesizing iron oxide powder in which the shapes and sizes of particles can be easily regulated. CONSTITUTION: Dried α-FeOOH precursor with final concentration of 0.1-0.5 mol per liter is added to reactor containing glycol solvent such as ethylene glycol, propylene glycol, or mixture of them, which regulators for shape and size of particles, while H2O, itaconic acid, or HNO3 are used as regulators; the mixture is blended by ultrasonic disperser at 150-300°C and with pressure of 3-30 kg per centimeter square for 1-48 hours; then, recrystallized particles are gained by centrifugation. The shape and size of particles are controlled by what kind and what concentration of a regulator is used. Produced iron oxide particles have spherical, octahedral, tetradecahedral, or intermediary polygonal shape and 0.05-5.0 micrometer particle size.

Abstract translation: 目的：提供合成氧化铁粉末的方法，其中可以容易地调节颗粒的形状和尺寸。 构成：将最终浓度为0.1-0.5mol / l的干燥的α-FeO​​OH前体加入到含有二醇溶剂如乙二醇，丙二醇或它们的混合物的反应器中，这些调节剂用于形成和尺寸的颗粒，而H 2 O，衣康酸 酸或HNO 3用作调节剂; 该混合物通过超声波分散机在150-300℃和3-30kg / cm 2的压力下共混1-48小时; 然后通过离心获得重结晶的颗粒。 颗粒的形状和尺寸由使用什么样的浓度的调节剂控制。 产生的氧化铁颗粒具有球形，八面体，十四面体或中间多边形，粒径为0.05-5.0微米。