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TWO:Then, another day, the air was leaden, too heavy to breathe. The mountains of the gem-like hues had lost their glory; they were of one flat tone of dusky grey, and further away were lost to view, invisible in the dead monotony of the colourless sky. The silence was oppressive; there was not a bird in the air, and a strange uneasiness scared the beasts, all seeking a shady refuge.

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:A native judge is sitting cross-legged on a little mat in his house. A petitioner appears of the lowest caste, a Sudra. The judge, quite motionless, watches the man unfasten his sandals, rush up to him, and with a profound bow touch his feet in sign of submission. For a man of higher caste, a Vaysiya, the ceremonial is the same, only instead of running forward the visitor walks up to the judge and merely pretends to touch his slippers. Then comes a kshatriya advancing very slowly; the judge rises to meet him half-way, and they both bow.
  • 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:At night the sound of a remote tom-tom attracted me to a large square shaded by giant trees. In a very tiny hut made of matting, a misshapen statue of Kali, bedizened with a diadem, a belt, nanparas, and bangles made of beads and gold tinsel, stood over a prostrate image in clay of Siva, lying on his back. In front of this divinity, under an awning stretched beneath the boughs of a banyan tree, two nautch-girls in transparent sarees were dancing a very smooth sliding step to the accompaniment of two bagpipes and some drums. The Hindoo spectators sat in a circle on the grounda white mass[Pg 142] dimly lighted by a few lanternsand sang to the music a soft, monotonous chant.

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

THREE:From the open loggia at the end of the vast reception-room, lined with white marble and hung with thick carpets, there was an extensive view over the green plain inundated with water and sunshine to the holy city of dazzling domes that looked as if they had just risen from the Ganges. The air was full of heady fragrance; the Rajah described the springtide festivals, barges carrying troupes of dancing bayadres on the Ganges sparkling with a myriad lights.
  • 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).