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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:Frank asked why it was the whale "spouted," or blew up, the column of spray. Captain Spofford explained that the whale is not, properly speaking, a fish, but an animal. "He has warm blood, like a cow or horse," said the Captain, "and he must come to the surface to breathe. He takes a certain amount of water into his lungs along with the air, and when he throws it out, it makes the spray you have seen, and which the sailors call a spout." CHAPTER FIVE
  • 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:Fred admitted that there might be some ground for Frank's enthusiasm, and, in fact, he was not long in sharing it, and thinking it was a very good thing that they were going to Enoshima, and intending to see Dai-Boots on the way.Then the Clockwork man raised a hand slowly to his face, and Arthur knew that he was repeating his former meditative action, finger to nose. He remained in that position for another minute, as though the problem of which way to turn was almost too much for him. Finally, he turned sharp to the right and began to walk again.

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

THREE:From the railway station our travellers went to the Nihon Bashi, in order to begin their journey from the centre of the empire. A more[Pg 116] practical reason was a desire to see the river, and the great street leading to it, as they would get a good idea of the extent of the city by taking this route, and would obtain numerous glimpses of Japanese street life. They found the streets full of people, and it seemed to the boys that the whole population must be out for an airing. But the Doctor informed them that the sight they were witnessing was an every-day affair, as the Japanese were essentially an outdoor people, and that many of the industries which in other countries would be conducted under a roof were here seen in progress out of doors. The fronts of the Japanese houses are quite open to the view of the public, and there is hardly anything of what we call privacy. It was formerly no uncommon sight to see people bathing in tubs placed in front of their door-steps; and even at the present time one has only to go into the villages, or away from the usual haunts of foreigners, to see that spectacle which would be unknown in the United States. The bath-houses are now closed in front in all the cities, but remain pretty much as before in the smaller towns. Year by year the country is adopting Western ideas, and coming to understand the Western views of propriety."Ah, no, Lieutenant, this is bad enough. Lieutenant, there is one matter--"
  • 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:But there was no accounting for the activities of the Clockwork man. At a distance of about a yard from the barrier his whole body took off from the ground, and he literally floated in space over the obstacle. It was not jumping; it was more like flying. He landed lightly upon his feet, without the least difficulty; and, before the onlookers could recover from their amazement, this extraordinary personage had shot like a catapult, straight up the path along which he had travelled so precariously half an hour before. In a few seconds his diminutive figure passed into the horizon, leaving a faint trail of dust and the dying echo of that appalling noise.He lookee plenty ice more high,

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