Manganese ore acceptors for hydrogen sulfide

Claim 1

IN A PROCESS FOR REMOVING SULFUR FROM SULFUR-CONTAINING PARTICULATE CARBONACEOUS SOLIDS WHICH COMPRISES PREPARING AN INTIMATE ADMIXTURE OF SAID CARBONACEOUS SOLIDS AND OF PARTICULATE SOLID ACCEPTORS CONSISTING ESSENTIALLY OF A MANGANESE OXIDE ORE CONTAINING LESS THAN ABOUT 20 PERCENT OF ALUMINA, SILICA, CALCIUM AND IRON, SUBJECTING SAID ADMIXTURE TO TREATMENT AT A TEMPERATURE ABOVE 1100*F. IN THE PRESENCE OF HYDROGEN GAS TO REMOVE SULFUR FROM SAID CARBONACEOUS SOLIDS AS HYDROGEN SULFIDE WHICH IS ABSORBED BY SAID ACCEPTORS TO FORM MANGANESE SULFIDE, FOLLOWED BY OXIDIZING THE MANGANESE SULFIDE TO MANGANESE OXIDE BY REACTION WITH OXYGEN TO PROVIDE REGENERATED ACCEPTORS FOR REUSE IN THE PROCESS, WHEREIN THE ACCEPTORS IN ADMIXTURE WITH THE CARBONACEOUS SOLIDS SUFFER A DECREASE IN STRENGTH, THE IMPROVEMENT WHICH MINIMIZES LOSS OF THE ACCEPTORS'' STRENGTH UNDER PROCESS CONDITIONS COMPRISING INITIALLY PREPARING AN INTI MATE ADMIXTURE OF CARBONACEOUS SOLIDS AND PARTICULATE SOLID ACCEPTORS WHEREIN SAID MANGANESE OXIDE ORE IS A MEMBER SELECTED FROM THE CLASS CONSISTING OF (1) A NATURALLY OCCURRING CRUSHED, SCREENED FRACTION OF SELECTED PARTICLESIZE DISTRIBUTION CONSISTING ESSENTIALLY OF RAMSDELLITE AND (2) FINELY DIVIDED PARTICLES CONSISTING ESSENTIALY OF PYROLUSITE, SAID PYROLUSITE PARTICLES BEING OBTAINED BY BRIQUETING THE ORE TO PRODUCE BRIQUETS OF SELECTED PARTICLE-SIZE DISTRIBUTION AND THEN CALCINING THE RESULTING BRIQUETS TO PRODUCE SUITABLE SOLID ACCEPTORS.