ここから本文です
TWO:

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:CHAPTER XXIV. THE MEASURE OF PUNISHMENTS.
  • 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:Another principle would serve admirably to draw still closer the important connection between a misdeed and its punishment, and that is, that the latter should as far as possible conform to the nature of the crime. This analogy facilitates marvellously the contrast that ought to exist between the impulse to[188] the crime and the counter-influence of the punishment, the one, that is, diverting the mind and guiding it to an end quite different from that to which the seductive idea of transgressing the law endeavours to lead it.The influence of the predominant French philosophy appears throughout Beccarias treatise. Human justice is based on the idea of public utility, and the object of legislation is to conduct men to the greatest possible happiness or to the least possible misery. The vein of dissatisfaction with life and of disbelief in human virtue is a marked feature of Beccarias philosophy. To him life is a desert, in which a few physical pleasures lie scattered here and there;[5] his own country is only a place of exile, save for the presence of a few friends engaged like himself in a war with ignorance. Human ideas of morality and virtue have only been produced in the course of many centuries and after much bloodshed, but slow and difficult as their growth has been, they are ever ready to disappear at the slightest breeze that blows against them.

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

THREE:[180]This, then, is the way to avoid confounding the relations and invariable nature of things, which, being unlimited by time and in ceaseless operation, confounds and overturns all narrow regulations that depart from it. It is not only the arts of taste and pleasure which have for their universal principle the faithful imitation of nature; but the art of politics itself, at least that which is true and permanent, is subject to this general maxim, since it consists in nothing else than the art of directing in the best way and to the same purposes the immutable sentiments of mankind.
  • 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 knowledge of the true relations between a sovereign and his subjects, and of those between different nations; the revival of commerce by the light of philosophical truths, diffused by printing; and the silent international war of industry, the most humane and the most worthy of rational menthese are the fruits which we owe to the enlightenment of this century. But how few have examined and combated the cruelty of punishments, and the irregularities of criminal procedures, a part of legislation so[119] elementary and yet so neglected in almost the whole of Europe; and how few have sought, by a return to first principles, to dissipate the mistakes accumulated by many centuries, or to mitigate, with at least that force which belongs only to ascertained truths, the excessive caprice of ill-directed power, which has presented up to this time but one long example of lawful and cold-blooded atrocity! And yet the groans of the weak, sacrificed to the cruelty of the ignorant or to the indolence of the rich; the barbarous tortures, multiplied with a severity as useless as it is prodigal, for crimes either not proved or quite chimerical; the disgusting horrors of a prison, enhanced by that which is the cruellest executioner of the miserablenamely, uncertainty;these ought to startle those rulers whose function it is to guide the opinion of mens minds.

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