34results about How to "Reduce the burden of separation" patented technology

The invention relates to a process for extracting nickel-cobalt from laterite by using resin-in-pulp adsorption technology. The process comprises the following steps of: milling the laterite, and adding sulfuric acid into the milled laterite to perform high-pressure leaching; pouring the ore pulp after the leaching into a reaction kettle for neutral impurity removal; directly pouring the ore pulp after the impurity removal into an adsorption tank to perform resin adsorption; adopting multilevel counter current absorption to perform desorption on the loaded resin so as to obtain pure nickel and cobalt mixed solution; and performing extraction separation to obtain a nickel-cobalt product. The resin can be used repeatedly after regeneration, the damaged resin is less, the service life of the resin is long, the desorption of the loaded resin and the regeneration of a poor resin are performed at normal temperature and normal pressure and are simple and easy to operate without a pressure vessel and heat regeneration device, thereby saving energy resources and reducing equipment investment. The ore pulp after adsorption is uniformly neutralized to reduce the tailings treating cost. The process shortens the technological process, reduces the liquid-solid separation burden, and reduces a great number of washing and filtering process steps, thereby reducing the production energy consumption and reducing the production cost. The process is simple, and the recovery rate of nickel and cobalt is over 90 percent.

The invention belongs to the field of waste incineration equipment and particularly relates to a flue-gas purifying system of an incineration furnace applicable to treating flue gas from incineration of the incineration furnace. The flue-gas purifying system at least comprises a flue-gas leading-out pipe and a treating chamber, wherein a water curtain part is arranged at the treating chamber, and the water discharging direction of the water curtain part is vertical to or intersected with the moving direction of the flue gas at the outlet of the flue-gas leading-out pipe; a precipitate deslagging port is arranged at the bottom part of the treating chamber; the treating chamber is internally provided with a communicating pipe for communicating with an external inner-circulation reservoir and a steam discharging pipeline; a gas discharging pipe of a water-steam separating component extends towards the tail end of a flue and penetrates into an inner cavity of the flue; and a water discharging pipe of the water-steam separating component is communicated with the external inner-circulation reservoir. The flue-gas purifying system also comprises a carbon-powder distributor and a lime distributor. The flue-gas purifying system can provide a basic hardware platform for treating the flue gas of the current high-efficiency incineration furnace, is high in flue-gas treating efficiency and good in working reliability, and can be well qualified for the need of high-efficiency, harmless and rapid treatment of the flue gas from incineration of various current incineration furnaces.