ここから本文です
TWO:[See larger version]

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:[557]
  • 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:[See larger version]

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

THREE:The condition of Washington was inconceivably depressing. The time for the serving of the greater part of the troops was fast expiring; and numbers of them, despite the circumstances of the country, went off. Whilst Washington was, therefore, exerting himself to prevail on them to continue, he was compelled to weaken his persuasions by enforcing the strictest restraint on both soldiers and officers, who would plunder the inhabitants around them on the plea that they were Tories. Sickness was in his camp; and his suffering men, for want of hospitals, were obliged to lie about in barns, stables, sheds, and even under the fences and bushes. He wrote again to Congress in a condition of despair. He called on them to place their army on a permanent footing; to give the officers such pay as should enable them to live as gentlemen, and not as mean plunderers. He recommended that not only a good bounty should be given to every non-commissioned officer and soldier, but also the reward of a hundred or a hundred and fifty acres of land, a suit of clothes, and a blanket. Though Congress was loth to comply with these terms, it soon found that it must do so, or soldiers would go over to the royal army.Telford, under the commission for Scotland, thoroughly revolutionised the roads of that country. From Carlisle to the extremity of Caithness, and from east to west of Scotland, he intersected the whole country with beautiful roads, threw bridges of admirable construction over the rivers, and improved many of the harbours, as those of Banff, Peterhead, Fraserburgh, Fortrose, Cullen, and Kirkwall. The extent of new road made by him was about one thousand miles, and he threw one thousand two hundred bridges over rivers, some of them wild mountain torrents.
  • 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:The affairs of Ireland had been entrusted in the House of Commons to the vigorous hands of Mr. Stanley (afterwards Earl of Derby), who had been sent over as Chief Secretary with Lord Anglesey, and whom, from his firmness in administering the law, Mr. O'Connell denounced as "scorpion Stanley." On the 24th of March Mr. Stanley moved the first reading of the Bill to amend the representation of Ireland. A long and a violent debate ensued, in which Ireland was not so much thought of as the vast general interests involved in the impending revolution. In the meantime Ministers had done what they could to make the king comfortable with regard to his revenue. They proposed 510,000 a year for the Civil List, instead of 498,480, as recommended by the committee, while the liberal jointure of 100,000 a year was settled upon Queen Adelaide. This gratified his Majesty in the highest degree, and reconciled him to the dissolution, his decision being hastened by the attempt of the Tories to stop supplies. When the royal carriages were not ready to take him to the House of Lords, the king said, "Then call a hackney coach."

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