Precipitating agent for water purification processes,and a method of preparing same

Abstract

Abstract THE PRESENT INVENTION RELATES TO AN AGENT FOR PURIFICATION OF WATER BY PRECIPITATION, AND A METHOD FOR PREPARING THIS PRECIPITATING AGENT. THE WATER SHALL BE PURIFIED TO SUCH AN EXTENT THAT RAW WATER BECOMES POTABLE AND SUITABLE FOR COOKING AND FOOD PREPARING, AND SEWAGE MUST BE CLEANSED SO THAT IT CAN BE RELATED INTO RECIPITENTS WITHOUT CAUSING HARM OR INCONVENIENCE. THE SUBSTANCES TO BE REMOVED ARE PRIMARILY IRON, MANGANESE, ALUMINIUM AND VARIOUS PHOSPHATES, BUT THE WATER MAY ALSO CONTAIN COPPER, LEAD AND MERCURY. THE PRECIPITATING AGENT ACCORDING TO THE INVENTION COMPRISES A MIXTURE OF MINERALS WHICH AFTER A PREVIOUS BURNING HAVE DIFFERENT SOLUBILITY PRODUCTS, WHICH MIXTURE HAS A MOLE RATIO OF 1.0-5.0 BETWEEN BASIC AND ACID OXIDES, AND CONTENT OF 5-40% SIO2, 515% AL2O3, 3-12% FE2O3, 15-70% CAO AND 0.1-20% MGO IN AN IGNITED SAMPLE. IN THE PREPARATION OF THE PRECIPITATING AGENT THE STARTING MATERIALS ARE BLENDED IN SUCH PROPORTION AND BURNT AT SUCH TEMPERATURE THAT SUFFICIRNT MINERAL FORMATION IS OBTAINED AND SO THAT THE BURNT MIXTURE CONTAINS MINERALS OF DIFFERENT SOLUBILITY PRODUCTS HAS A MOLE RATIO BETWEEN BASIC AND ACID OXIDES OF 1.0-5.0 AND THE ABOVE MENTIONED ANALYSIS DATA. THE PRODUCT IS SUBSEQUENTLY GROUND TO A POWDER HAVING A FINENESS OF 10-20% BY WEIGHT GREATER THAN 60 UM. AND 0-2% BY WEIGHT GREATER THAN 90 UM.

Inventors

• 👤 K Kawert

Bibliographic Details