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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:On her right hand rode her husband, clad in a tunic of fine cloth, in colour resembling the habit of his lady, and mounted on a dark, fiery charger, which with difficulty he could rein in to the slow pace of the palfrey. On the left of the lady Isabella was her brother, young Robert de Vere, and though but a boy, one might have read much in the lines of that countenance, of his future destiny. His smooth, dimpled chin, was small and round, and his mouth possessed that habitual smile, that softly beaming expression, which won for him in after years the regard of the superficial Richard; while there shone a fire in the full dark eyes, which betokened the ambitious spirit that was to animate the future lord of Dublin, and sovereign of Ireland.
  • 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:"And is this thy counsel, father John?" said Tyler, reproachfully: "but, by St. Nicholas! this robber of the high altar shall not depart scatheless. Kentish men!my horse, my horse!" and he stamped his armed heels upon the pavement.

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

THREE:Chapter 12Reuben cursed the base trucksters who had brought it forward, and he cursed the scummy versifier who was its laureatewhose verses appeared daily on six-foot hoardings, and were sung by drunken Radicals to drown his speeches. No one knew who the Radical poet was, for his party kept him a mystery, fearful, no doubt, lest he should be bribed by the other side. Some said that he was a London journalist, sent down in despair by the Liberals at head-quarters. If so they must have congratulated themselves on their forlorn hope, for the tide of events changed completely.
  • 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:She stole out of the kitchen into the peace of the dark house, ran up the stairs, and found the right door in the unlighted passage. The bedroom was very big and cold, and on the threshold she wrinkled up her nose at a strange scent, something like hay and dry flowers.But Richard did not enjoy the supper as much as the shearing, for most of the men over-ate themselves, and all of them over-drank. Also the pretty serving-girl forsook him for Albert, who on one occasion was actually seen to put his arm round her waist, and hold it there till a scowl from his father made him drop it.

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