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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:"Gholson, s'e, 'I done as I done, sir, from my highest sense o' duty. This ain't Lieutenant Helm's own little private war, Lieutenant Quinn, nor mine, nor yours.'"
  • 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:There was another person present at the cricket match to whom the appearance of the strange figure upon the hill seemed an unusual circumstance, only in his case it provided rather an agreeable diversion than an irritating[Pg 7] disturbance. It had been something to look at, and much more interesting than cricket. All the afternoon Arthur Withers had been lying in the long grass, chewing bits of it at intervals and hoping against hope that something would happen to prevent his having to go out to the pitch and make a fool of himself. He knew perfectly well that Tanner, the demon bowler of the opposing team, would get him out first ball. He might linger at the seat of operations whilst one or two byes were run; but there were few quests more unwarranted and hopeless than that excursion, duly padded and gloved, to the scene of instant disaster. He dreaded the unnecessary trouble he was bound to give, the waiting while he walked with shaking knees to the wicket; the careful assistance of the umpire in finding centre for him; all the ceremony of cricket rehearsed for his special and quite undeserved benefit. And afterwards he would be put to field where there was a lot of running to do, and only dead balls to pick up. Of course, he wasn't funking; that wouldn't be cricket. But he had been very miserable. He sometimes wondered why he paid a subscription in order to take part in a game that cost him such agony of mind to play. But it was the privilege that mattered as much as anything. Just to be allowed to play.

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

THREE:The batsman at the other end was a stout, rather plethoric individual. He missed the first two balls, and the third struck him full in the stomach. There was a sympathetic pause whilst Mr. Bumpus, who was well known and respected in the town, rubbed this rather prominent part of his anatomy to the accompaniment of fish-like gaspings and excusable ejaculations. Mr. Bumpus was middle-aged and bald as well as corpulent, and although he did his best to endure the mishap with sportsman-like stoicism, the dismay written upon his perspiring features was certainly an excitant to mirth. Some of the fielders turned their heads for a few moments as though to spare themselves a difficult ordeal; but on the whole there was discreet silence.In a couple of days the steamer was ready for the return to Shanghai. The time had been well employed in visiting the streets and shops and temples of Han-kow, and learning something of its importance as a centre of trade. The return journey was begun with a feeling of satisfaction that they had taken the trouble and the time for the ascent of the Yang-tsu and made themselves acquainted with the internal life of the country.
  • 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:I see, he said. Well then, Miss Propert, you must cross out what I have dictated to you about it. Please read the letter through.... Yes, cross out from the sentence beginning, Re the payment for carriage of goods. Dear me, it is nearly one: what a lot of time we have spent over that. The booking-clerk would have done it much more quickly."You will find, the more you know the Japanese, that they cannot be excelled in their kindnesses to each other. They have great reverence and respect for their parents; and their affection for brothers and sisters, cousins, aunts, and all relatives, is worthy of admiration. If you inquire into the circumstances of the laboring-men, whose daily earnings are very small, and with whom life is a most earnest struggle, you will find that nearly every one of them is supporting somebody besides himself, and that many of their families are inconveniently large. Yet they accept all their burdens cheerfully, and are always smiling, and apparently happy. Whether they are really so has been doubted; but I see no good reason to call their cheerfulness in question.

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