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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:Whilst these indignant sentiments were uttering, the petitions for economical reform were pouring in from all parts of the country in such numbers that the table of the House appeared buried under them. The House went into committee upon the subject, and then Dunning rose and introduced his famous motion for a resolution in these words:"That it is the opinion of this committee that the influence of the Crown has increased, is increasing, and ought to be diminished." Dunning declaimed in language bold and unsparing, and expatiated at great length on the alarming influence of the Crown, purchased by the lavish expenditure of the people's money, the people thus being made the instruments of their own slavery. He censured in stinging terms the treatment of the economical plans of Burke, the treacherous terms of approbation with which Ministers had received them, and then had trodden on them piecemeal till they[265] had left of them the merest shred. He trusted the nation would still resent this audacious mockery of reformthis insult to the most distinguished patriots. This was the way, he contended, that this Administration had again and again actedadding ridicule to oppression. Dunning's motion was carried, at a late hour of the night, by two hundred and thirty-three votes against two hundred and fifteen.
  • 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:The success of the Waverley Novels turned the main force of the genius and literary resources of the country into the ever widening channel of prose fiction. Many names of note appeared before the public as novel writers about that time. In Scotland, under the immediate shadow of the author of "Waverley," came John Galt, Mrs. Johnstone, Miss Ferrier, the Ettrick Shepherd, Allan Cunningham, Gibson Lockhart, Picken, Moir. In Ireland, and of Irish birth, there were Colley, Grattan, Crofton Croker, Banim, Gerald Griffin, Samuel Lover, and last, though not least, William Carleton. In England, and chiefly of English birth, were Mrs. Shelley, Peacock, Thomas Hope, Theodore and James Hook, Morier, Lister, Ward, Gleig, Horace Smith, Miss Mitford, Mrs. Gore, Mrs. Trollope, Captain Marryat, and Mr. James.
  • 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:Meanwhile the war had continued, and with the commencement of 1841 fortune began to favour the British. The Chinese position at the mouth of the Canton river was forced, and the Emperor was compelled to send a Commissioner, Keshin by name, to treat with the "outer barbarians." Keshin cunningly transferred the scene of negotiations to Canton, in order to secure time to strengthen the forts and prepare for defence. He accordingly employed the interval busily in erecting new batteries at the Bogue, barricading the bars in the river by sinking boats laden with stones, throwing up breastworks near Canton, and levying troops. The British Commissioner, wearied and irritated by these proceedings, gave directions to Commodore Bremer to proceed at once to compulsory methods of bringing the Chinese to reason. On the 7th of January, therefore, he opened fire on the Bogue forts, on two of which the British flag very soon floated. Next morning, when everything was ready to attack the principal fort, Annughoy, a flag of truce was sent by the Chinese, and hostilities were suspended. Keshin offered to adjust matters immediately, and on the 20th a circular appeared, signed by Captain Elliot, and dated Macao, addressed to "Her Britannic Majesty's subjects," stating that her Majesty's plenipotentiary had to announce the conclusion of preliminary arrangements between the Imperial Commissioner and himself, involving the following conditions:1st. The cession of the harbour and island of Hong Kong to the British Crown. 2nd. An indemnity to the British Government of 6,000,000 dollars, to be paid in annual instalments in six years. 3rd. Direct official intercourse between the two countries upon equal footing. It was quite evident that her Majesty's plenipotentiary did not understand the sort of people he had to deal with; otherwise, he would not have arrested the operations of Commodore Bremer till he had all the principal forts in his possession. In fact he was completely duped by Keshin.

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