公开(公告)号：US20180305789A1

公开(公告)日：2018-10-25

申请号：US15959251

申请日：2018-04-22

Applicant: American Zinc Recycling Corp.

Inventor： John PUSATERI ,  Rege ZAGROCKI

IPC: C22B19/36 ,  C22B1/04 ,  C22B19/08

CPC classification number: C22B19/36 ,  C22B1/04 ,  C22B19/08

Abstract: A method and recovering method of recovering zinc oxides and other metal oxides having an injection chamber where a mixture of natural gas and oxygen is formed and then ignited to form high temperature combustion gases of greater than 2000° C. with a high concentration of carbon monoxide. Then, the mixture is transported through a quiescent chamber to a feed chamber where the ignited high temperature combustion gases are mixed with finely divided material, including EAF dust. The mixture is transported to a reaction chamber, wherein zinc vapor and other metal vapors and molten slag particles are formed. The zinc vapor and other metal vapors are separated from the molten slag particles and transported to an insulated plenum. Zinc vapor and other metal vapors are mixed with air and become airborne zinc oxide and other metal oxides. The airborne zinc oxide and other metal oxides are collected.