发明名称 Milk of lime and/or milk of magnesium hydroxide, solid phase and process for preparing thereof
摘要 In the present invention there is disclosed a milk with dry matter content above 60 percent by weight and viscosity up to 15 Pa.s contains anion selected from SOi4e2- and Cle- and a polyanion being represented by a polymer or a copolymer containing monomeric anion units being selected from a group of a monomer group comprising acrylic acid and salts thereof, methacrylic acid and salts thereof, vinylbenzyl sulfonic acid and salts thereof, akrylamino-2-methylpropane sulfonic acid and salts thereof and 2-sulfoethyl-methacrylate and salts thereof. Such milk solid phase obtained by separation of the phases is formed by micro-flakes of calcium and/or magnesium hydroxide with thickness up to 0.5 micrometers, whereby the micro-flake bottom and upper surfaces are parallel to each other and said surfaces area is up to 200 square micrometers. In the present invention there is also claimed a process for preparing the milk, whereby the preparation process is characterized by slaking calcium and/or magnesium oxide in an aqueous solution containing Cle- or SOi4e2- anion, whereby prior slaking, during slaking or after slaking the above specified polyanion is added in said aqueous solution.
申请公布号 CZ287356(B6) 申请公布日期 2000.11.15
申请号 CZ19930000112 申请日期 1993.01.29
申请人 LHOIST RECHERCHE ET DEVELOPPEMENT S.A. 发明人 LANGELIN HENRI-REN•
分类号 C01F5/16;C01F11/00;C01F11/02;C04B2/06;(IPC1-7):C01F5/16 主分类号 C01F5/16
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