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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:Lafayette, Lord Cornwallis, and the Duke of York were his565 guests at the dinner-table that day. The king suffered from his exposure, was very feverish, and at an early hour went to bed. The next day he completed his review; and the next day wentround by Neisse, inspection not to be omitted there, though it doubles the distanceto Brieg, a drive of eighty miles, inspection work included.196DESTROYING THE LETTERS.
  • 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:This was in January, 1744. The young lady, with her mother, by express invitation, and with this object in view, visited the Russian court. Sophia embraced the Greek religion, received in baptism the new name of Catharine, and on the 1st of September, 1745, was married to her second cousin Peter. And with invocation of the Russian heaven and Russian earth they were declared to be one flesh, though at last they turned out to be two fleshes, as my reader well knows.171

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

THREE:Each regiment shall take but one baggage-cart for a company. No officer, whoever he may be or whatever his title, shall take with him the least of silver plate, not even a silver spoon. Whoever wants to keep table, great or small, must manage the same with tin utensils, without exception, be he who he will.The queen went to her own apartment to fetch it. I ran in to her there for a moment. She was out of her senses, wringing her hands, crying incessantly, and exclaiming, O God, my son, my son! Breath failed me. I fell fainting into the arms of Madam Sonsfeld. The queen took the writing-desk to the king. He immediately broke it open and tore out the letters, with which he went away. The queen came back to us. We were comforted by the assurance, from some of the attendants, that my brother at least was not dead.
  • 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:While on this journey to Holland the Crown Prince was one day dining with a prince of Lippe-Bückeburg. Freemasonry became one of the topics of conversation at the table. King Frederick William denounced the institution in his usual style of coarse vituperation, as tomfoolery, atheism, and every thing else that was bad. But the Prince of Bückeburg, himself a mason and a very gentlemanly man, defended the craft with such persuasive eloquence as quite captivated the Crown Prince. After dinner the prince took him secretly aside, conversed with him more fully upon the subject, expressed his admiration of the system, and his wish to be admitted into the fraternity: But it was necessary carefully to conceal the step from the irate king. Arrangements were immediately made to assemble at Brunswick a sufficient number of masons from Hamburg, where the Crown Prince, on his return, could be received in a secret meeting into the mystic brotherhood.

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