公开(公告)号：US3825652A

公开(公告)日：1974-07-23

申请号：US20131871

申请日：1971-11-23

申请人： KNAPSACK AG

发明人： PREISLER E ,  GRAPENTIN K ,  HARMSEN E ,  HARNISCH H

IPC分类号： C01G45/00 ,  C01G45/10

CPC分类号： C01G45/00 ,  C01P2006/80

摘要： PRODUCTION OF MANGANESE (11) SALT SOLUTIONS HAVING MINOR PROPORTIONS OF HEAVY METAL CONTAMINANTS THEREIN BY INTRODUCING ONE OR MORE COMMERCIAL MANGANESE (11) COMPOUNDS OR ORES INTO A MINERAL ACID SOLUTION, PRECIPI TATING THE HEAVY MELTS BY MEANS OF A SULFIDE COMPOUND, AND ISOLATING THE RESULTING PERCIPITATE. MORE PARTICULARLY, THE COMMERCIAL MANGANESE (11) COMPOUNDS KOR ORES ARE INTRODUCED INTO THE MINERAL ACID SOLUTION AND, WHILE OMITTING FILTRATION, THE HEAVY METAL SULFIDES ARE PRECIPITATED AT A PH-VALUE OF BETWEEN 3.5 AND 8.2 AND THE PRECIPITATED SULFIDES ARE ISOLATED TOGETHER WITH THE VEIN ORE OF THE COMMERCIAL MANGANESE (11) COMPOUNDS OR ORES, IN A SINGLE STEP OPERATION