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TWO:FROM YOKOHAMA TO TOKIO.

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:
  • 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:He came opposite the house, and his heart leaped, for there was a light behind her window-blind. He had known there would be, and he almost shouted for exultation at the fulfilment of his anticipation. Of course she had not gone: she was waiting just for this.Indeed, its allowed, said Mrs Keeling, but as for Alice smoking, well, that is a good joke. And as for your being too comfortable I call that another joke.

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

THREE:His face suddenly cleared, and all trace of the canine resemblance vanished as if by magic. He got up and took two or three jerk-like strides up and down the room. "Must keep goingwhen I feel like thiseither food or violent stimulusotherwise the confounded thing runs downand there you are.""In the first place, the bowl of plain porcelain is ground, so that the enamel will stick closely, which it would not do if the surface were glazed. Then the artist makes a design, on paper, of the pattern he intends putting on the bowl. When his design is finished, he lays it on a flat surface, and takes little pieces of brass wire which has been passed between rollers so that it becomes flattened; these he bends with pincers, so that they take the shape of the figure he wants to represent. Thus he goes over his whole design until every part of the outline, every leaf, flower, and stemin fact, every line of his drawingis represented by a piece of wire bent to the exact shape. The wire then forms a series of partitions; each fragment of it is a cell, or cloison, intended to retain the enamel in place and keep the colors from spreading or mingling. That is the first step in the work.
  • 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:Still, if Gregg's conjectures were anywhere near the mark, in a very few hours it would be[Pg 114] known all over England that the jaws of the future had opened and disclosed this monstrosity to the eyes of the present. There would be a great stir of excitement; the newspapers would be full of the event. Indeed, the whole course of the world might be altered as a result of this astounding revelation.

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