2 results about "Realgar" patented technology

The application provides a high-sulfur arsenic carbon refractory gold concentrate boiling roasting system and method, and belongs to the technical field of mineral processing and metallurgy. The system comprises a four-furnace boiling roasting device and a flue gas recovery device. The four-furnace boiling roasting device comprises four furnaces connected in sequence and with decreasing horizontal heights. The bottoms of the four furnaces are respectively provided with four air chambers in communication with the furnaces. The first and fourth air chambers only pass in air, the second air chamber only passes in flue gas generated in the first furnace, and the third air chamber only passes in flue gas generated in the fourth furnace. The flue gas of the second and third furnaces is passed into the flue gas recovery device, which comprises a high-temperature carbon bed reactor, a realgar recovery device, a medium-temperature carbon bed reactor and a sulfur recovery device connected in sequence. The application reasonably designs the process and the equipment to recover sulfur and arsenic in the ore in the form of sulfur and realgar, has a small amount of flue gas emission, is beneficial to environmental protection, and is beneficial to improving the gold leaching rate of the refractory gold concentrate.

The invention provides a processing method and an optimizing method of Tibetan medicine metal ash, and belongs to the technical field of metal sulfide preparation. According to the Tibetan medicine metal ash processing method provided by the invention, overflow of elemental sulfur in a sulfur source is reduced by using an inverted container method in the processing process, so that the contact efficiency of metal and elemental sulfur is improved, and the efficiency of generating metal sulfide by reaction of metal, sulfur and realgar and the purity of sulfide in metal ash are improved; and moreover, the method is carried out in an incompletely closed container only by inversely buckling the container, so that the risk of explosion caused by sharp rise of the internal pressure of the container due to accumulation of volatile gas is prevented.