公开(公告)号：US3592586A

公开(公告)日：1971-07-13

申请号：US3592586D

申请日：1969-02-17

申请人： FRANKE PLATING WORKS ,  LEWIS F SCOTT

发明人： SCOTT LEWIS F

IPC分类号： C01C3/10 ,  B01J1/00

CPC分类号： C01C3/10 ,  Y10S210/904

摘要： A METHOD AND APPARATUS FOR CONVERTING CYANIDE WASTES INTO SODIUM CYANIDE IN WHICH SAID WASTES ARE HEATED AND PUMPED INTO A FIRST TANK CONTAINING AN ACID SOLUTION TO PRODUCE HYDROGEN CYANIDE. THE HYDROGEN CYANIDE IS THEN PASSED THROUGH A FIRST TOWER OF SODIUM HYDROXIDE AND A SECOND TANK CONTAINING A FIRST SOLUTION OF SODIUM HYDROXIDE AND SODIUM CYANIDE. THE MATERIALS IN SAID SECOND TANK ARE RECYCLED THERETHROUGH AND THROUGH SAID FIRST TOWER TO PRODUCE THE SODIUM CYANIDE REACTION PRODUCT WHICH IS THEN WITHDRAWN FROM SAID SECOND TANK. DURING SAID RECIRCULATION, VAPORIZED HYDROGEN CYANIDE IS WITHDRAWN FROM SAID SECOND TANK AND PASSED AND RECYCLED THROUGH A SECOND TOWER OF SODIUM HYDROXIDE AND A THIRD TANK TO PRODUCE A SECOND SOLUTION OF SODIUM HYDROXIDE AND SODIUM CYANIDE WHICH IS PUMPED INTO SAID SECOND TANK AT THE START OF THE NEXT CONVERSION CYCLE TO FORM SAID FIRST SOLUTION THEREIN.

公开(公告)号：US3744977A

公开(公告)日：1973-07-10

申请号：US3744977D

申请日：1971-03-05

申请人： FRANKE PLATING WORKS

发明人： SCOTT L

IPC分类号： C01C3/10 ,  B01J1/00

CPC分类号： C01C3/10 ,  Y10S204/13 ,  Y10S210/904 ,  Y10S588/90

摘要： AN APPARATUS FOR CONVERTING CYANIDE WASTES INTO SODIUM CYANIDE IN WHICH A HEAT EXCHANGER IS INTERCONNECTED BETWEEN A PLURALITY OF REACTION TANKS AND A FIRST TOWER ADAPTED TO HOLD A CHARGE OR SODIUM HYDROXIDE. SAID TOWER IS INTERCONNECTED TO ONE COMPARTMENT OF A CHAMBERED TANK, AND A SECOND COMPARTMENT IN SAID TANK IS CONNECTED TO A SECOND TOWER ADAPTED TO HOLD A CHARGE OF SODIUM HYDROXIDE. A PUMPING ASSEMBLY IS PROVIDED FOR WITHDRAWING THE SODIUM CYANIDE FROM THE FIRST COMPARTMENT AND FOR RECYCLING THE REACTION MIXTURE THROUGH THE TOWERS AND THE COMPARTMENTED TANK.