3results about "Carbon disulfide" patented technology

This invention discloses a system and method for plasma reduction of sulfide ores to produce metals and carbon disulfide in the fields of non-ferrous metal metallurgy and high-value utilization of sulfur resources. The system includes a raw material preparation and conveying unit, a plasma reaction unit, and a condensation and recovery unit. The method involves mixing sulfide ore powder and carbon powder, which are then fed into a plasma gun by a carrier gas. A rapid reduction reaction occurs under ultra-high plasma temperature, generating molten metal and carbon disulfide gas in one step. The molten metal is collected at the bottom of the furnace and released. The high-temperature flue gas is rapidly cooled, dusted, and deeply condensed before being recovered as a high-purity liquid product. This invention achieves a streamlined process for sulfide ore smelting, recovers sulfur resources in a high-value form, avoids sulfur dioxide pollution, and has the outstanding advantages of high efficiency, low carbon footprint, and good economic benefits.

The application discloses a hydrogen sulfide and methane reforming device, which at least comprises: a reforming unit arranged at the bottom of the device and having a reforming settling zone and a reforming reaction zone; in the reforming reaction zone in the form of a fluidized bed, H2S and CH4 are used as fluidized gas, and H2S and CH4 are converted into H2 and CS2 through a reforming reaction under the action of a sulfidized catalyst; a regeneration unit having a regeneration zone and a regeneration settling zone arranged at the top of the device; the regeneration zone is an internal space of a riser pipe extending upward from the bottom of the device to the regeneration settling zone, and is used for driving the deactivated catalyst from the reforming reaction zone to move upward and be oxidatively regenerated by taking air as fluidized gas; and a sulfidation unit having an upper gas collecting zone for guiding H2S gas to be bended, a sulfidation zone and a lower gas collecting zone; the sulfidation zone is a radial reaction zone, in the sulfidation zone, the oxidized catalyst from the regeneration settling zone moving axially downward is contacted with the radial H2S gas, and the oxidized catalyst is pre-sulfidized by taking H2S as sulfidation gas, so that the sulfidized catalyst is generated and is conveyed downward to the reforming settling zone.

The present application relates to the technical field of waste gas purification, and particularly relates to a spraying cooling mechanism and a carbon disulfide preliminary separation tower comprising the same, which comprises a tower body, an air inlet arranged at the bottom of the tower body, an air outlet arranged at the top of the tower body, a water inlet pipe arranged at one side of the tower body and connected with a spraying head arranged inside the tower body, a positioning plate fixedly arranged inside the tower body and located below the spraying head, a rotating rod rotatably connected with the bottom of the positioning plate, a rotating cylinder fixedly connected with the end of the rotating rod away from the positioning plate, a movable rod arranged in an annular array outside the rotating cylinder and provided in multiple, a fixed frame fixedly arranged at the end of the movable rod away from the rotating cylinder and provided with a groove, and a throwing assembly arranged in the rotating cylinder and used for driving the fixed frame to overturn. The spraying cooling mechanism provided by the present application drives the movable rod and the fixed frame to overturn one circle through the throwing assembly, so that the liquid in the groove is thrown out, and the gas-liquid mixing degree is improved.