Process of acidic attack of arseniureted ores, particularly of cobalt and/or of nickel

Claim 1

A PROCESS FOR TREATING ARSENIURETED ORES CONTAINING VARIOUS METALS INCLUDING AT LEAST ONE METAL FROM THE GROUP CONSISTING OF COBALT, NICKEL, IRON AND GOLD, WHICH CONSISTS SUBSTANTIALLY OF DIFFUSING CHLORINE GAS INTO AN AQUEOUS SUSPENSION OF CRUDE ARSENIURETED ORE UNTIL A LARGE PORTION OF THE ARSENIC AND METAL IN THE ORE HAS BEEN DISSOLVED, SAID CHLORINE FORMING HYDROCHLORIC ACID BY ITS ACTION ON THE CRUDE ORE, THEREAFTER ADDING PREVIOUSLY ROASTED AND OXIDIZED ARSENIURETED ORE TO THE SUSPENSION IN AN AMOUNT CORRESPONDING SUBSTANTIALLY TO THE AMOUNT REQUIRED TO REACT WITH SAID HYDROCHLORIC ACID IN SOLUBILIZING ANY OXIDIZED ELEMENTS IN THE ROASTED ORE, SAID HYDROCHLORIC ACID DIRECTLY ATTACKING THE ROASTED ORE, AND CONTINUING THE DIFFUSION OF CHLORINE GAS INTO THE SUSPENSION UNTIL SUBSTANTIALLY ALL THE ARSENIC AND METALS IN THE CRUDE AND ROASTED ORES HAVE BEEN DISSOLVED.