摘要 |
A flocculant composition comprises an aqueous solution of a mixture of titanyl sulfate or titanium tetrachloride with a water-soluble, neutral alkali or alkaline earth metal salt at a titanium to alkali or alkaline earth metal salt ratio calculated as TiO2 of from 0.25:1 to 0.0002:1 by weight. The flocculant composition may further contain a water soluble iron salt at a titanium to iron ratio calculated as TiO2 and Fe2O3 of from 1:1 to 40:1 by weight, or a water-soluble zirconium salt at a titanium to zirconium ratio calculated as TiO2 and ZrO2 of from 1:1 to 40:1 by weight, or a water soluble aluminum salt at a titanium to aluminum ratio calculated as TiO2 and Al2O3 of from 1:1 to 40:1 by weight. A water-clarifying method comprises the addition of an aqueous solution of titanyl sulfate or titanium tetrachloride to raw water in combination with a water-soluble, neutral alkali or alkaline earth metal with or without further combination with a water soluble iron, zirconium or aluminum salt.
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申请人 |
TAYCA CORPORATION;TAIMEI CHEMICALS CO., LTD.;HINOMARU KOGYO CORPORATION;IWANE, NOBUO;AOE, TERUO;MIYAZAWA, TAKUMA;ARUGA, SHIGEMI;TANAKA, MINORU;TANAKA, YOSHITARO |
发明人 |
IWANE, NOBUO;AOE, TERUO;MIYAZAWA, TAKUMA;ARUGA, SHIGEMI;TANAKA, MINORU;TANAKA, YOSHITARO |