发明名称 |
TITANIUM DIOXIDE PIGMENT PRODUCTION PROCESS |
摘要 |
FIELD: varnish-and-paint industry. ^ SUBSTANCE: process of producing titanium dioxide pigment according to chloride technology comprises oxidation of titanium tetrachloride with oxygen or oxygen-containing gas in plasmachemical reactor followed by cooling of reaction products in tempering chamber and subsequent multistep fine grinding of intermediate product, titanium dioxide, by way of affection with supersonic gas flow at 100-500°C and ratio of gas mass intake to titanium dioxide mass intake = 0.2. In the first step of titanium dioxide fine grinding, treatment of titanium dioxide is performed with a dry gas supplemented by vapor of organic or organosilicon modifier having in its molecule at least one of the following functional groups: -OH, -NH2, NH, SH at mass intake of modifier representing 0.1-2.0% of the mass intake of titanium dioxide. ^ EFFECT: improved quality of titanium dioxide pigment and simplified process of production thereof. ^ 1 dwg, 1 tbl |
申请公布号 |
RU2314257(C1) |
申请公布日期 |
2008.01.10 |
申请号 |
RU20060117084 |
申请日期 |
2006.05.18 |
申请人 |
GOROVOJ MIKHAIL ALEKSEEVICH;GOROVOJ JURIJ MIKHAJLOVICH;KLJAMKO ANDREJ STANISLAVOVICH;PRANOVICH ALEKSANDR ALEKSANDROVICH;VLASENKO VIKTOR IVANOVICH;KORZHAKOV VLADIMIR VIKTOROVICH |
发明人 |
GOROVOJ MIKHAIL ALEKSEEVICH;GOROVOJ JURIJ MIKHAJLOVICH;KLJAMKO ANDREJ STANISLAVOVICH;PRANOVICH ALEKSANDR ALEKSANDROVICH;VLASENKO VIKTOR IVANOVICH;KORZHAKOV VLADIMIR VIKTOROVICH |
分类号 |
C01G23/07;C09C1/36;C09C3/04;C09C3/08;C09C3/12 |
主分类号 |
C01G23/07 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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