| 摘要 |
978,120. Distillation apparatus; separating fractions of a liquid mixture for chemical analysis. TECHNICON INSTRUMENTS CORPORATION. Nov. 5, 1962 [Nov. 13, 1961], No. 41672/62. Heading B1B. Liquid to be distilled is fed through tube 90 into the end of a helical passage 14 formed along the inner surface of a horizontal cylindrical vessel 12 which is rotated about its longitudinal axis on rollers 24. The lower portion of the vessel is heated by electrical heater 20. Discrete elements of the liquid pass along the vessel in the lowest sections of the helical passage. The vapours evolved from the heated liquid are drawn into tube 56 through holes 60, and then flow through line 65 into condenser 64, by the action of a vacuum pump connected to the outlet 79 of the condenser. The condensate collects in receptacle 80. The residual undistilled liquid reaching the left-hand end of vessel 12 discharges into outlet cap 44, and leaves the apparatus through outlet 52. For the separation of a liquid mixture, a number of separate vapour tubes 62, Fig. 3, are located within the tube 56, each tube 62 being connected to one of the holes 60 in tube 56 and leading to a separate condenser. The components of the liquid mixture vaporize in sequence in vessel 12, and the vapour fractions are withdrawn via the separate tubes 62. The apparatus may be used for the separation of samples for chemical analysis, e.g. in the determination of the alcohol content of beer, or the phenol content of plant effluent. Specifications 774,711, 783,649 and 834,635 are referred to. |
