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TWO:"Doctor Bronson has been there before, hasn't he, father?" said Mary, when the explanation was ended.

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:"Gholson! no! I have it from Lucius Oliver, who had it from his son. He told me carefully, quietly and entirely, in pure spleen, so that I might know that they know--think they know, that is,--why you and--he in front of us yonder--would not shoot his son when--"About every two miles along the way they found little huts or caves, partly dug in the mass of volcanic rubbish, and partly built up, with roofs to protect the interior from the rain. These were intended as refuges for the pilgrims for passing the night or resting during storms, and had no doubt been of great service to those who preceded them. At one of these[Pg 211] they halted for luncheon, which they took from the pack of one of their bearers, and later on they halted at another to pass the night. It is considered too great a journey to be made in a single day, except by persons of unusual vigor and long accustomed to mountain-climbing. The customary plan is to pass a night on the mountain when little more than half way up, and then to finish the ascent, and make the whole of the descent on the second day.
  • 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 aromatic polyimide membrane is highly permeable to water vapor but less permeable to vapors of organic compounds such as alcohol etc.

THREE:"And sure," she said, "and I hope that wretched old Feejee won't be in Japan at all, at all, and the horrid haythens won't roast him.""There is a funny little islandand not so little, after all, as it is three hundred feet highthat stands right in the middle of the river at one place. They call it the Little Orphan Rock, probably because it was never known to have any father or mother. There is a temple in the side of the rock, as if a niche had been cut to receive it. Fred thinks the people who live there ought not to complain of their ventilation and drainage; and if they fell out of the front windows by any accident, they would not be worth much when picked up. Away up on the top of the rock there is a little temple that would make a capital light-house,[Pg 338] but I suppose the Chinese are too far behind the times to think of turning it to any practical use. Great Orphan Rock is farther up the river, or a little out of the river, in what they call Po-yang Lake.
  • 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:Frank had his eye on a sampan that was darting about like an active fish, first in one direction and then in another. It was propelled by a single oar in the hands of a brown-skinned boatman, who was not encumbered with a large amount of superfluous clothing. The oar was in two piecesa blade and a handlelashed together in such a way that they did not form a straight line. At first Frank thought there was something wrong about it; but he soon observed that the oars in all the boats were of the same pattern, and made in the same way. They were worked like sculls rather than like oars. The man kept the oar constantly beneath the water; and, as he moved it forwards and back, he turned it partly around. A rope near his hand regulated the distance the oar could be turned, and also kept it from rising out of the water or going too far below the surface.

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