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TWO:"Yes. But how much is this?"

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:As we stood up there the caravan for Cabul came in sight on the road below, and slowly disappeared wrapped in dust, with mechanical steadiness and[Pg 250] without a sound. After that came the other train of travellers from Peshawur, singing to the accompaniment of mule-bells, every sound swelled by the echo. Children's laughter came up to our ears, the scream of an elephant angry at being stoppedeven at a distance we could still hear them a littleand then silence fell again under the flight of the eagles soaring in circles further and further away as they followed the caravan.Japanese girls, too, in every possible hue, with piles of tinsel and flowers above their little flat faces all covered with saffron and white paint; little fidgeting parrakeets flitting from window to window, and calling to the people in the street in shrill, nasal tones.
  • 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:Ekkas, and chigrams closed with thick curtains, came galloping past with loud cries from within. All was noise and a shifting of many colours, seeming more foolish here, in this large island, with its deserted avenues of tall trees, than anywhere else.

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

THREE:We saw the Jasmine tower from a corner of the garden in the glow of sunset. With its gilt cupola blazing in the low beams, its amber-hued walls as transparent as melting wax, and its pierced screen-work, it looked so diaphanous, so fragile, that it might be carried away by the evening breeze. And beyond the pavilion, above the ramparts carved with huge elephants, lies the old Hindoo palace, deserted by Jehangir for his house of pale marblesan endless palace, a labyrinth of red buildings loaded to the top with an agglomeration of ornament supporting flat roofs. And pagodas that have lost their doors, a work of destruction begun by Aurungzeeb. One court is still intact, overhung by seventy-two balconies, where the zenana could look on at the dancing of bayadres. Perfect, too, is the queen's private apartment, with two walls between which an army kept guard by day and by night.From the top of the observatory, where instruments, all out of order, are to be seen on the deserted terraces, a staircase in a half-circle of stonework leads straight up to the open sky, and there the eye is dazzled by the view of Benares, all spread out below: the vast city of yellow stone, the cupolas of its temples, and its palaces stretching far along the Ganges, which slowly rolls its milky green waters under a sky of almost pearly whiteness; and in the distance the grassy plain of bright emerald green, lost on the horizon that throbs with the heat. Everything was wrapped in a halo rather than a haze, faintly blue with the smoke that went up from the funeral piles of the Hindoo dead.
  • 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).