发明名称 |
METHOD OF PREPARING TITANIUM DIOXIDE |
摘要 |
preparation of titanium dioxide by vapor phase oxidation of halides. SUBSTANCE: titanium tetrachloride is heated to 200-240 C. Natural gas is burned up in the air. Combustion products are added into water to from gas-vapor mixture. Gal-vapor mixture is admitted into reactor perpendicularly to stream of titanium tetrachloride vapors. Titanium tetrachloride to gas-vapor ratios is 1:(1-4). Additive is simultaneously added into reactor. Additive containing aluminum chloride in admixture with lower titanium chlorides or containing aluminum chloride solution in titaniumtetrachloride is directed at angle of 50-55 to motion of titanium tetrachloride vapors. Potassium chloride solution containing additive is fed perpendicularly to motion of gas-vapor mixture. EFFECT: titanium dioxide with improved pigmenting properties due to preparing spherical particles. 6 cl, 2 ex
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申请公布号 |
RU2169119(C1) |
申请公布日期 |
2001.06.20 |
申请号 |
RU19990126397 |
申请日期 |
1999.12.15 |
申请人 |
OTKRYTOE AKTSIONERNOE OBSHCHESTVO "AVISMA TITANO-MAGNIEVYJ KOMBINAT" |
发明人 |
LAUKART N.F.;FIRSTOV G.A.;SHUNDIKOV N.A.;POTEKHA S.I. |
分类号 |
C01G23/07;(IPC1-7):C01G23/07 |
主分类号 |
C01G23/07 |
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