Abstract The present research deals with the study of the possibility to prepare Dicalcium Phosphate (animal feed grade) from crude phosphoric acid (produced at The State Company of phosphate after Purification from : ...

Abstract This research study is concerned with seeking routs to recover the chromiom concentrations of the leather tanning waste water in order to prepare highly pure chromic oxide as well as chromium metal by aluminothermic ...

.The report deals with experimemental work to extract Cr3+ from industrial-water of leather –tanning industry in order to control the concentrations discharged to the environment . The extraction tests were carried out ...