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TWO:The fourteen hundred and fifty-two gods of the Ja?n paradise are represented on a sculptured pyramid under a pagoda: little tadpoles of white stone crowded together, two black dots showing for eyes in the middle of the round featureless faces; on one side a more important god, sitting alone, has a rather less elementary countenance.

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:And side by side with history a pleasing legend tells that King Anang-Pal yearned to atone for his faults and redeem the earth from sin. So by the[Pg 220] counsels of a wise Brahmin he caused this vast iron spike to be forged by giants, to be driven into the earth and pierce the serpent Sechnaga, who upholds the world. The deed was done, but because certain disbelieving men denied that the monster was dead, the king caused the weapon to be pulled up, and at the end of it behold the stain of blood; so the iron beam was driven in again. But the spell was brokenthe creature had escaped. The column remained unstable, prefiguring the end of the dynasty of Anang, and the serpent still works his wicked will."And is that all?"
  • 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:All the sick were sudras, Hindoos of the lowest caste. All the rest, Brahmins, Kshatriyas, Vaisiyas, would rather die at home, uncared for, than endure the promiscuous mixture of caste at the hospital, and contact with their inferiors. Even the sudras are but few. There is an all-pervading dread of a hospital, fostered by Indian bone-setters and sorcerers, stronger even than the fear of the pestilence; the people hide themselves to die, like[Pg 33] wounded animals, and their relations will not speak of an illness for fear of seeing anybody belonging to them taken to the hospital.

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

THREE:
  • 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:

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