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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:[See larger version]
  • 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.
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The aromatic polyimide membrane is highly permeable to water vapor but less permeable to vapors of organic compounds such as alcohol etc.

THREE:This naturally roused the States, who made a very different statement; contending that, by the treaties, every ally was bound to do all in its power to bring the common enemy to terms; that England, being more powerful than Holland, ought to bear a larger share of the burden of the war; yet that the forces of Holland had been in the Netherlands often upwards of a hundred thousand, whilst those of England had not amounted to seventy thousand; that this had prevented the Dutch from sending more soldiers to Spain; and that, whilst England had been at peace in her own territory, they (the Dutch) had suffered severely in the struggle. To this a sharp answer was drawn up by St. John, and despatched on the 8th of March, of which the real gist was that,[3] according to the Dutch, England could never give too much, or the United Provinces too little. Nothing could exceed the bitterness of tone which existed between England and the Allies, with whom it had so long manfully contended against encroaching France; for the whole world felt how unworthily the English generally were acting under the Tory Ministry, and this did not tend to forward the negotiations, which had been going on at Utrecht since the 29th of January. To this conference had been appointed as the British plenipotentiaries, the new Earl of Straffordwhom Swift, a great partisan of the Tory Ministry, pronounced a poor creatureand Robinson, Bishop of Bristol, Lord Privy Seal. On the part of France appeared the Marshal d'Uxelles, the Abb de Polignac, and Mesnager, who had lately been in England settling the preliminaries. On the part of the Dutch were Buys and Vanderdussen; and, besides these, the Emperor, the Duke of Savoy, and the lesser German princes had their representatives.At the commencement of the Session a notice of a motion of want of confidence in the Ministry was given by Sir John Yarde Buller. He assigned as reasons for bringing forward the motion the disturbed and unsatisfactory state of the country, which he ascribed to the system of popular agitation, "nurtured and fostered," as he alleged, by the Ministers during the preceding two years. After a debate of four consecutive nights the motion was rejected by 308 votes to 287. The division was fairly satisfactory, and another source of gratification to the Ministry was the passing of the Irish Municipal Bill, which became law in spite of a characteristic protest from Bishop Phillpotts, who regarded the measure "as a deliberate and wilful abandonment of the cause of true religion which had provoked the justice of Almighty God and given too much reason to apprehend the visitation of Divine vengeance for this presumptuous act of national disobedience." In this Session Sir Robert Peel at last terminated the scandals connected with election committees by a plan which authorised the Speaker to appoint a general committee of elections, with the duty of selecting election committees to try each particular[471] case. Sir Francis Baring's Budget was a considerable improvement upon those of his indifferent predecessor, Mr. Spring-Rice, whose careless finance had produced no less than four successive deficits. He acknowledged a deficit of 850,000, and asked for a vote of credit. He further imposed an additional tax of 4d. a gallon on spirits, increased the customs and excise by 5 per cent., and the assessed taxes by 10 per cent.
  • 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:"I have had great satisfaction in giving my assent to the measures which you have presented to me from time to time, calculated to extend commerce, and to stimulate domestic skill and industry, by the repeal of prohibitory and the relaxation of protective duties.

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