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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:Frederick, having cantoned his troops at Freiberg and its vicinity, on the 27th of November wrote again to the Countess of Camas:Wilhelminas purse was generally empty, and she was often in great want of money. Her penurious father had married her below her rank that he might escape settling upon her a dowry. Though her husband was heir to the marquisate of Baireuth, his father was still living. That father was a drunkard and a miser. It seems that the son received but little more than his wages as colonel in the army. Wilhelmina records that one day her brother Fritz came to her and said,
  • 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:The seventh day after our accession to the throne of all the Russias we received information that the late emperor, Peter III., was attacked with a violent colic. That we might not be wanting in Christian duty, or disobedient to the divine command by which we are enjoined to preserve the life of our neighbor, we immediately ordered that the said Peter should be furnished with every thing that might be judged necessary to restore his health by the aids of medicine. But, to our great regret and affliction, we were yesterday evening apprized that, by permission of the Almighty, the late emperor departed this life.The selfish rapacity of the King of Prussia gave the signal to his neighbors. His example quieted their sense of shame. The whole world sprang to arms. On the head of Frederick is all the blood which was shed in a war which raged during many years, and in every quarter of the globethe blood of the column of Fontenoy, the blood of the brave mountaineers who were slaughtered at Culloden. The evils produced by this wickedness were felt in lands where the name of Prussia was unknown. In order that he might rob a neighbor whom he had promised to defend, black men fought on the coast of Coromandel, and red men scalped each other by the great lakes of North America.

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

THREE:
  • 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:We have now reached the year 1726. The Emperor of Germany declares that he can never give his consent to the double marriage with the English princes. Frederick William, who is not at all fond of his wifes relatives, and is annoyed by the hesitancy which his father-in-law has manifested in reference to it, is also turning his obstinate will against the nuptial alliance. A more imperative and inflexible man never breathed. This year the unhappy wife of George I. died, unreconciled, wretched, exasperated, after thirty years captivity in the castle of Ahlden. Darker and darker seemed the gloom which enveloped the path of Sophie Dorothee. She still clung to the marriages as the dearest hope of her heart. It was with her an ever-present thought. But Frederick William was the most obdurate and obstinate of mortals.

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