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TWO:AHMEDABAD[Pg 270]

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:The Rajah's residence, of plaster like the rest of the town, is pink too outside, but the interior is aggressive with paint of harsh colours. In the living rooms is shabby furniture, gilt chairs turned one over the other, as on the day after a ball. The curtains over the doors and windows are of silk,[Pg 214] but frayed and threadbare. In the shade of a marble court with carved columns, clerks are employed in counting moneyhandsome coins stamped with flowers and Indian characters, laid out in rows. They count them into bags round which soldiers mount guard.
  • 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:In another building is the hall where the dastours say the last prayers over the dead in the presence of the relations; the body is then stripped in a consecrated chamber and abandoned to the mysteries of the tower.

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

THREE:MADRASFurther away, in another quite small temple, a young Brahmin robed in white, and very handsome, was reading the Ramayana to two women; the three quite filled the little building. The entrance was screened by a curtain composed of jasmine flowers threaded on fine string, and behind this veil of flowers the three figures looked like the creatures of a legend. Outside the sanctuary, seated on the steps and flagstones and obstructing the street, were a score or so of women redolent of lemon and[Pg 178] sandal-wood, and listening to the scripture distinctly chanted out by the young priest.
  • 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:This native regiment, after many victories, was presented by the Empress Queen with a sort of mace. A little shrine contains two crossed knives, and is surmounted by three Ghoorkhas bearing a royal crown in silver. This object is preserved in a case in the ammunition store. An officer is appointed to guard it, and the soldier who took it out to show me touched it really as if it had been the Host. And it is a fact that on high festivals the soldiers come to sacrifice goats before the house where this fetish is treasured.

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