PURPOSE:To improve dispersibility of calcium carbonate in food, especially in milky by adding water to calcium carbonate powder having specified physical properties, pulverizing the powder in a wet state, and then adding a specified emulsifier to treat the calcium carbonate. CONSTITUTION:Water is ...
The addition of alkanolamide 6502 during the crystallization process was conductive to form vaterite, and the particle size of calcium carbonate was more uniform. Meanwhile, alkanolamide 6502 can change the surface properties of the product from hydrophilic to hydrophobic, preventing the agglomeration. ...
Preparation of Calcium Carbonate (CaCO3) CaCO3is produced by the use of carbon dioxide and slaked lime as raw materials. When carbon dioxide passes through the slaked lime, it obtains the calcite. Another approach used to produce calcite is the addition of sodium carbonate to calcium chloride....
专利名称:PREPARATION OF SPHERICAL CALCIUM CARBONAT E 发明人:OZAWA TOSHUKI,UJIIE TAKASHI,TAMURA KAZ UT OSH I 申请号:JP16558380 申请日:19801125 公开号:J P S624 0289B 2 公开日:19870827 摘要:PURPOSE:To prepare spherical calcium carbonate stable even in the presence of water, and suitable as an...
Calcium carbonate/cellulose fiber composites combining natural polymers and inorganic particles are promising materials for preparing fluff pulp. In this study, calcium carbonate (CaCO3) particles were in-situ precipitated on cellulose fiber surfaces to decrease the level of hydrogen bonding. The results...
A method for the preparation of a calcium carbonate powder of which the particles have a platelet-like particulate configuration and which is useful as a pigment or filler in various products with superiority to kaolin clays and mica powders. The method is a two-step carbonation method of a mi...
Selective formation of monodisperse spherical vaterite calcium carbonate (CaCO3) precipitate using glycine (Gly) in calcium hydroxide(Ca(OH)2)-Carbon dioxide (CO2) reaction system at room temperature and atmospheric pressure has been reported. Crystalline products were examined by scanning electron micros...
Also, vitamin D deficit has been linked to reduced muscle function and increased risk of falling. Calcium from carbonate is the most common form, due to its cost-effectiveness profile, of calcium supplement for choice. Calcium lactate and gluconate are less concentrated forms of calcium and are ...
A calcite film is fabricated on a silicon wafer by a controlled phase transformation of amorphous calcium carbonate film at 120 °C, which is used as a substrate to induce the deposition of the aragonite layer with the addition of magnesium ion. We demonstrated the importance of the transition...
PURPOSE:To prepare calcium carbonate pigment useful as a paint pigment, without increasing the amount of binders, by mixing an aqueous solution of a specific polymer with calcium carbonate or its aqueous dispersion. CONSTITUTION:An aqueous solution of a water-soluble polymer having one or more group...