3results about How to "Speed up distillation" patented technology

The invention discloses a safe toluene recovery device for p-tolyl isocyanate production. The safe toluene recovery device comprises a bottom plate, a recovery assembly, a solution mixing assembly and a cleaning assembly. According to the safe toluene recovery device for p-tolyl isocyanate production, the liquid carrying box can reciprocate in the vertical direction, so that the liquid carrying box carries a stock solution on the lower middle portion to the upper portion, meanwhile, the circulating liquid pipe rotates to drive the L-shaped stirring rod to rotate, the stock solution located at the bottom passes through the water pump and the circulating liquid pipe, the stock solution is fed into the liquid collecting box and the branch pipe, and then the stock solution is recycled. And the toluene gas is uniformly scattered on the filter plate through the liquid discharge holes in the branch pipes, so that the stock solution is heated more uniformly, the distillation speed of the stock solution is increased, and the distilled toluene gas is collected. Besides, an annular sliding rail reciprocates left and right to drive a mounting plate and a cleaning brush to move, so that the cleaning brush cleans the filter plate, the filtering effect of the filter plate is improved, the purity of the stock solution is higher, and the recycling effect of the methylbenzene gas is further improved.

This invention discloses a distillation apparatus for processing high-QI needle coke feedstock, relating to the field of high-QI needle coke feedstock processing technology. It includes a heating furnace, a vacuum distillation column, and a fractionation column. The heating furnace is connected to the lower end of the vacuum distillation column. The top of the vacuum distillation column is a waste oil discharge end, the middle section is a mid-section oil collection system, and the lower end is a heavy phase pitch collection end. The waste oil discharge end is connected to a top vacuum pump. The mid-section oil collection system is connected to the lower end of the fractionation column. The fractionation column, from top to bottom, consists of a first fraction collection system, a second fraction collection system, and a third fraction collection system. This invention pre-treats needle coke feedstock by combining vacuum distillation and fractionation, significantly increasing the yield of needle coke feedstock.

The invention relates to the technical field of resin distillation, in particular to an automatic waste discharge resin distillation reaction kettle. The invention provides a resin distillation reaction kettle capable of automatically discharging waste, which can discharge bubbles generated in a resin distillation process and improve the distillation purity of resin. A resin distillation reaction kettle capable of automatically discharging waste comprises a plurality of supporting seats, a reaction barrel, a heating jacket and the like, the reaction barrel is connected among the supporting seats, and the heating jacket is connected to the outer side of the reaction barrel. Bubbles generated on the surface of a pine resin raw material are introduced into the mounting cylinder through the guide plate, the pine resin raw material rotates and drives the driving frame to rotate, so that the auger rotates, the auger conveys the bubbles to a liquid inlet pipe of the waste discharge pump, the waste discharge pump is started, and the bubbles enter the waste discharge pump from the liquid inlet pipe to be discharged; the effects of discharging the bubbles generated in the resin distillation process and improving the distillation purity of the resin are achieved.