Assertion: copper sulfate's form | /r/SimilarTo | the leaching process
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Source sentences:
text: The CESL process  is based on chloride-accelerated oxidation pressure leaching with the control of the amount of the acid to ensure that copper is transferred to the basic cupric sulphate salts, iron to haematite and sulphur to the elemental form, which is similar to the leaching process developed by Noranda in the 70s.