Search Results

You are looking at 1 - 1 of 1 items for

  • Author or Editor: Habib Shlewit x
  • Refine by Access: All Content x
Clear All Modify Search

Abstract  

Phosphate rocks were leached with hydrochloric acid; and radium was removed by co-precipitation with BaSO4. Uranium and lanthanides were extracted by di(2-ethyl hexyl) phosphoric acid and tributyl phosphate. Phosphoric acid was then separated from calcium chloride solution and other impurities by extraction using undiluted iso-amyl alcohol. Gypsum was precipitated by sulfuric acid to regenerate hydrochloric acid for recycling. Fluorine was precipitated from the initial leach solution as Na2SiF6.

Restricted access