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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:"Yes, Captain." As I wiped the brow again I heard the tread of two horses down in front of the house; they were Gholson's, and Ned Ferry's for Charlotte. "Captain, may I go and bring her--tell her what you say, and bring her?"
  • 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:This conversation occurred while the boys were in front of the hotel, and waiting for the Doctor, whom they expected every moment. When he came, the three went out for a stroll, and returned in good season for breakfast. While they were out they took a peep into a Japanese house, where the family were at their morning meal, and thus the boys had an opportunity of comparing their own ways with those of the country they were in."If you like," admitted Gregg, "only it does help them to understand, just as all our scientific knowledge helps us to understand, the future."
  • 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:"Looking through the hatch, we could see them grouped together and engaged in earnest conversation. Two were dead or dying, and from one of them there was a stream of blood slowly oozing. A coolie who appeared to be a ringleader among them dipped his pen in the blood and wrote on a sheet of paper:Late in the evening of the day on which I had conducted the Harpers to Squire Wall's I had received a despatch ordering me to board the next morning's train at Brookhaven with my horse. On it I should find a number of cases of those shoes I had seen at Hazlehurst. At Tangipahoa I was to transfer them to one or two army-wagons which would by that time have reached there, and bring them across to Clinton, where a guard would meet and join me to conduct the wagons to camp. And thus I had done, bearing with me a sad vision of dear dark Miss Harper fluttering her handkerchief above her three nieces' heads, one of whom refrained until the opportunity had all but gone, to wave good-bye to the visibly wretched author of "Maiden passing fair, turn away thine eyes." My lucky Cricket had gone three nights and two whole days with no harness but his halter, and to-night, beside the Yankee's horse, that still bore Ned Ferry, he was as good as new. My leader and I talked of Charlotte. In the middle of this day's forenoon Gholson had come into camp reporting at the General's tent the long ride she had made on Monday; as good a fifty miles as Ferry's own. We called it, now, Ferry and I, a most clever achievement for a woman. "Many women," he said, "know how to ride, but she knows how to march."

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