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TWO:A BED OF TORTURE. A BED OF TORTURE."'Tis the enemy, I think," he said, "but only scouts, I suppose."

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:Hugh hardly thought about this at all before he answered. It was a perfectly evident proposition.
  • 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 Chinese have a great many gods, and pretty nearly every god has a temple in some part of Pekin. There is a fine temple to Confucius, which is surrounded by some trees that are said to be five hundred years old; the temple has a high roof which is very elaborately carved, and looks pretty both from a distance and when you are close by it. But there are no statues in the temple, as the Chinese do not worship Confucius through a statue, but by means of a tablet on which his name is inscribed. The other deities have their statues, and you may see the god of war with a long beard and mustache. The Chinese have very slight beards, and it is perhaps for this reason that they frequently represent their divinities as having a great deal of hair on their faces, so as to indicate their superiority to mortals. Then they have a god of literature, who is represented standing on the head of a large fish, and waving a pencil in his right hand, while he holds in his left a cap such as is worn by the literary graduates after they have received their degrees.[Pg 368] The god of literature is worshipped a great deal by everybody who is studying for a degree, and by those whose ancestors or other relatives have been successful in carrying away the honors at an examination. Think what it would be to have such a divinity in our colleges and schools[Pg 369] in America, and the amount of worship he would get if the students really believed in him![Pg 73]

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

THREE:Yours faithfully,
  • 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).