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TWO:Inside the mausoleum numberless lustres hang from the roof, and fine large standing lamps with crystal pendants burn round two tombs covered with antique hangings and wreathed with jasmine; beneath these lie the two last kings of Oudh. Small models of two famous mosques, one in gold and one in silver, are placed on the tombs, round which a whole regiment of obsequious moollahs and beggars mount guard. On the walls childish paintings, representing scenes of the Anglo-Indian conflict, alternate with mirrors in gilt frames, and silk standards exquisitely faded, embroidered with dim gold and silver, and surmounted by tridents.

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:In the spacious harbour, where a whole fleet of steamships lies at anchor, a swarm of decked boats are moving about, sober in colour, with the bows raised very high in a long peak, and immense narrow sails crossed like a pair of scissors, and resembling a seagull's wings.Flocks of almost tame partridges and wood-pigeons occupying the road did not fly till they were almost under the horses' feet, and all the way as we went, we saw, scampering from tree to tree, the scared little squirrels, grey with black stripes and straight-up bushy tails.
  • 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:"And is that 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:

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