摘要

FIELD: chemistry. SUBSTANCE: invention can be used in production of pigment titanium oxide for food and cosmetic industry. Method of synthesis of titanium oxide with phase modification of anatase involves preparation of aqueous solution of titanyl chloride and hydrolysis of said solution with addition of ammonia to form a precipitate. Hydrolysis is carried out at pH in range from 4.7 to 5.3 so that pH value during hydrolysis remains constant. Precipitate is separated from the mother solution, then dried and roasted in an air atmosphere. Said residue is dried to constant weight at temperature of 20–140 °C, and annealing at temperature not higher than 800 °C for 0.5–24 hours. After the hydrolysis step, an additional step of washing the residue with water is carried out. EFFECT: invention enables to obtain titanium oxide having high sedimentation resistance in aqueous and aqueous-organic media.
投稿的翻译标题Titanium oxide synthesis method: patent of invention
源语言Russian
专利号2709093
IPCC01G 23/053
归档日期28/11/2018
Published - 13 十二月 2019

指纹

探究 'Способ синтеза оксида титана: патент на изобретение' 的科研主题。它们共同构成独一无二的指纹。

引用此