ここから本文です
TWO:

Membrane separation type solvent dehydration system

Great attention is recently being paid to global environmental issues, and it is now conceivable that companies will need to treat used solvents themselves. In consideration of this kind of social issue, we have developed a “membrane separation type solvent dehydration system,” which uses a polyimide membrane with superior dehydration properties developed by Ube Industries, Ltd. in combination with our own distillation and concentration technology that has resulted in solvents being more easily recovered.

THREE:In the forecourt a cast-metal nymph presides over a sham-bronze fountain.
  • 1Under the distillation system, even in case of azeotropic solvent compositions, this system which remove water vapor by the polyimide membrane will easily dehydrate.
  • 2In comparison with the distillation system, it significantly saves on use of steam.
  • 3Dehydration can be performed through merely supplying evaporated vapor to the membrane module and maintaining the differential pressure between the permeable side and the impermeable side.
  • 4Solvent purity of 99.9% or more can be achieved by carrying out dehydration with a polyimide membrane only.
  • 5The polyimide membrane has superior heat and solvent resistance. Therefore, the vapor permeation system reduces contamination of the membrane and thus extends its life.
THREE:The attendants threw water on the pauper's pyre, and then with their long bamboos pushed the mass of burnt wood and flesh into the Ganges, where it looked like some enormous black frog with a white patch for the head.In the sacred tank, where Vishnu bathes when[Pg 165] he comes on earth, an old woman was standing pouring the stagnant green water over her body, while others of the faithful, seated on the steps, were piously drinking the stuff from a coco-nut that they handed round. In one corner of this pool was an exquisite bower of floating wreathsyellow, white, and violeta splash of bright colour on the squalid water.

The aromatic polyimide membrane is highly permeable to water vapor but less permeable to vapors of organic compounds such as alcohol etc.

THREE:The servant who came to tell me that dinner was served went barefoot, like all native servants, in spite of his liverya sash and a shoulder-belt arranged over the Indian costume, and bearing the arms of England, and a monogram placed in his turban.
  • 1 Recovery of the detergent solvent Recovery of the cleaning solvent such as electronic parts industry, precision instrument industry.
  • 2Solvent recovery and the refinement Solvent recovery and the refinement such as chemical industry, an industry of medical supplies, food industry, the fermentation industry.
THREE:On the road the people bowed low as we passed, almost to the earth. The women, in token of respect, turned their backs and crouched down.

Acetone, ethanol, methyl ethyl ketone, butanol, isopropyl alcohol, ethyl acetate, methyl isobutyl ketone, others (including hexane and toluene).