ここから本文です
TWO:

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:"Where did Mr. Winchape see him?" broke in Allingham, abruptly."Young lady, listen to me. I know your story is nearly all true. I know some good things about you which you have modestly left out; one of the rebels who stopped where you did last night and rode with you this morning was brought to me a prisoner half an hour ago. But he said your name was Rothvelt. How's that?"
  • 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:Nara is about thirty miles from Osaka, and is famous for some ancient temples and fine groves of trees. The park containing the latter is quite extensive, and supports a considerable number of deer, so tame that they will feed from the hand of a stranger. As they are the stock sights of the place, there are plenty of opportunities to spend a few pennies for cakes to be given to the deer. The cakes are sold by some old women, who call the pets from the shelter of the trees, and bring them bounding to your side. The trees in the park are very old, and among the finest in Japan. There are few lovelier spots in the country than this; and as our friends reclined on the veranda of the little hotel to which John had led the way, and looked upon the smiling valley that spread before them, they pronounced the picture one of the prettiest they had ever seen.

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

THREE:The Federal expanded with surprise and then with austere pleasure. He glanced toward his five men galloping back to him having found no enemy, and then at his column, which had just halted. Frowning, he motioned the advance guard to the road again and once more hailed Ferry while he pointed at me. He straightened and swelled still more as he began his question, but as he finished it a smile went all over him. "Is that your entire present force?"He broke off and struggled with some queer kind of mechanical emotion. "And now they play games with us. They wind us up and make us do all sorts of things, just for fun. They try all sorts of experiments with us, and we can't help ourselves because we're in their power; and if they like they can stop the clock, and then we aren't anything at all."
  • 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:"There's where you don't understand the science of storms," said the captain smiling. "In the northern hemisphere typhoons, cyclones, and[Pg 316] hurricanesthey are all the samewhirl from left to right, that is, they turn like the hands of a watch, while in the southern hemisphere their motion is exactly the reverse. When we think we are in the sweep of a typhoon in these waters, we run with the wind on our starboard, or right hand, and that course will take us away from the centre. In the southern hemisphere we run with the wind on the port, or left hand, with the same result. But we'll go to dinner now and be happy, for the danger is over."

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