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TWO:Legends have gathered round the Taj Mahal as about every old building in India, and this one seems to me not impossible in its barbarity.RAMPOOR

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 guardian fakirs who watch the sacred flag sat under a tree in front of the temple. One of these, quite young, was beautiful beyond words. He had taken a vow always to stand. Leaning on a long pole he rocked himself without ceasing; for an instant he allowed his rapt eyes to rest on the bystanders, and then looked up again at the plume of white horse-hair that crowns the flagstaff. His legs were rather wide apart and evidently stiff; he walked without bending his knees, and then as soon as he stood still he rested his chin on his long cane, and swayed his body as before.
  • 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 fog seemed to turn to solid smoke, impenetrably black, wrapping us in darkness which was suddenly rent by a red flash, blood-red, ending in a green gleam. The mist retained a tint of sulphurous copper for some time; then a second flash, and far away among the lurid clouds we had a glimpse of the Himalayas, pallid purple with green shadows against an inky sky. The[Pg 254] thunder, deadened by the masses of snow and very distant, rolled to and fro with a hollow sound, frightening the horses which struggled uphill at a frantic pace. And the dense fog closed round us once more, a dark green milkiness streaked with snow, which was falling in large flakes formed of four or five clinging together like the petals of flowers. Then it hailed, which completely maddened the horses, and then again snow, and it was literally night at ten in the morning when at last we reached this spot and the shelter of a bungalow.

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

THREE:LUCKNOWMore and yet more palaces; remains of marble porticoes and columns, walls covered with tiles glittering in the blazing sunshine like topaz and emerald; and over all the peace of dust and death, the only moving thing those vultures, in shades of dull grey almost indistinguishable from the colour of the stones.
  • 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:[Pg 157]

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