CALCIUM CARBONATE FOR USE IN

Brand Owner (click to sort) Address Description
CULLNEU CULLIGAN INTERNATIONAL COMPANY 9399 West Higgins Road Rosemont IL 60018 CALCIUM CARBONATE FOR USE IN THE TREATING AND CONDITIONING OF WATER;
PFINYL MINERALS TECHNOLOGIES INC. 622 Third Avenue, 38th Floor New York NY 10017 Calcium Carbonate for Use in Plastics;
 

Where the owner name is not linked, that owner no longer owns the brand

    
Technical Examples
  1. Water containing dissolved salts, such as calcium sulfate, calcium chloride, magnesium sulfate, magnesium chloride, sodium carbonate, sodium chloride, sodium sulfate, calcium bicarbonate, and mixtures thereof, is treated to reduce the concentration of those salts. About 0.1 to about 60 g/L of sodium hydroxide, sodium carbonate, potassium hydroxide, potassium carbonate, calcium hydroxide, calcium carbonate, aluminum hydroxide, aluminum sulfate, aluminum potassium sulfate, and mixtures thereof is added to the water, whereby a precipitate forms in the water. The precipitate is separated from said water and the water is desalinated using reverse osmosis, flash evaporation, or another method. The process is preferably performed by first adding calcium oxide or calcium hydroxide, separating the precipitate that forms, then adding sodium hydroxide and sodium carbonate to form a second precipitate.