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公开(公告)号：US3817711A
公开(公告)日：1974-06-18
申请号：US20525071
申请日：1971-12-06
Applicant: LONZA AG
Inventor： KUGLER T , SILBIGER J
CPC classification number: B82Y30/00 , B01J15/00 , C01B33/182 , C01P2004/62 , C01P2004/64 , C01P2006/80 , H05H1/3405 , H05H2001/3452
Abstract: A LIQUID STABILIZED PLASMA BURNER HAVING A CATHODE AND AN ANODE SPACED THEREFROM, TOGETHER WITH CHARGING MEANS INCLUDING STABILIZING LIQUID MEDIUM INLET PORTS FOR FEEDING A LIQUID STABILIZING MEDIUM TO THE PLASMA BURNER, AND WITHDRAWING MEANS INCLUDING OUTLET PORTS FOR WITHDRAWING LIQUID STABILIZING MEDIUM FROM THE BURNER TOGETHER WITH A GASEOUS PORTION THAT IS EVAPORATED AND DECOMPOSED IN THE ARC ZONE OF THE BURNER IS PROVIDED WITH AN INPUT CONDUIT IN THE VICINITY OF THE ANODE CONNECTED WITH A PNEUMATIC POWDER CONVEYER INTO WHICH IS FED COARSE PARTICULATE SILICON DIOXIDE AND THE GASEOUS EVAPORATED STABILIZING MEDIUM FROM THE WITHDRAWING MEANS USED TO CONVEY THE PARTICULATE SILICON DIOXIDE TO THE PLASMA ARC, THE OUTLET PORTS OF THE PLASMA BURNER CONNECTED TO CONVEY THE EVAPORATED AND LIQUID STABILIZING MEDIUM TO A SEPARATING DEVICE FROM WHICH LIQUID STABILIZING MEDIUM IS RECYCLED BACK TO THE INLET PORTS OF THE PLASMA BURNER AND THE EVAPORATED STABILIZING MEDIUM IS CONVEYED MEDIUM, AN PNEUMATIC POWDER CONVEYOR FOR CONVEYING MEDIUM, AN INSULATED VESSEL HAVING AN AXIALLY DIRECTED REACTION SPACE POSITIONED OUTWARDLY OF THE ANODE AND IN ALIGNMENT WITH THE CATHODE AND BOUNDED IN THE RADIAL DIRECTION AND A QUENCHING DEVICE POSITIONED IN AXIAL ALIGMENT THEREWITH AND CONTAINING A QUENCHING SPRAY THEREIN TO FORM FINELY PARTICULATE SILICON MONOXIDE. A REOXIDATION VESSEL HAVING A REOXIDATION SPACE AXIALLY POSITIONED BETWEEN THE INSULATED VESSEL AND A QUENCHING DEVICE MAY BE UTILIZED WITH A REOXIDATION SPRAY THEREIN FOR PRODUCING SILICON DIOXIDE.
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公开(公告)号：US3733387A
公开(公告)日：1973-05-15
申请号：US3733387D
申请日：1971-12-06
Applicant: LONZA AG
Inventor： KUGLER T , SILBIGER J
CPC classification number: B82Y30/00 , B01J15/00 , C01B33/113 , C01B33/182 , C01P2004/62 , C01P2004/64 , C01P2006/80 , C22C19/053 , H05H1/3405 , H05H1/42 , H05H2001/3452
Abstract: FINELY PARTICULATE SILICON OXIDES ARE PRODUCED FROM COARSE PARTICULATE SILICON DIOXIDE USING A LIQUID STABLISHED PLASMA BURNER. HYDROCARBONS ARE USED AS THE STABILISING LIQUID, AND THE COARSE PARTICULATE SILICON DIOXIDE IS REDUCED BY THE HYDROCARBON PLASMA JET LEAVING THE PLASMA BURNER, AND A PART OF THE HYDROCARBON WHICH WITH IS EVAPORATED AND DECOMPOSED IN THE ARC ZONE IS WITHDRAWN TOGETHER WITH THE LIQUID HYDROCARBON STABILISING MEDIUM, WHICH IS RE CYCLED, SEPARATED FROM THE LIQUID, AND USED AS CARRIER GAS FOR FEEDING THE COARSE PARTICULATE SILICON DIOXIDE. FINELY PARTICULATE SILICON MONOXIDE IS INITIALLY FORMED, AND MAY
BE RECOVERED AS SUCH, OR OXIDIZED AT THE ANODE OF THE PLASMA BURNER TO SILICON DIOXIDE.
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