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TWO: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.

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:Less dangerous personally than the theological criticism, but more pernicious to reform, was the hostile criticism that at once appeared from the thick phalanx of professional lawyers, the sound-thinking practical men. From whom only two short extracts need be rescued from oblivion, as illustrations of the objections once raised against ideas which have since become the common groundwork of all subsequent legislation, in America as well as in Europe. The first extract is from a work on criminal justice by a lawyer of Provence, who in 1770 wrote as follows:
  • 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:Penalties of infamy ought neither to be too common, nor to fall upon too many persons at a time; not too common, because the real and too frequent effects of matters of opinion weaken the force of opinion itself; not too general, because the disgrace of many persons resolves itself into the disgrace of none of them.

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

THREE:What is the political object of punishments? The intimidation of other men. But what shall we say of the secret and private tortures which the tyranny of custom exercises alike upon the guilty and the innocent? It is important, indeed, that no open crime shall pass unpunished; but the public exposure of a criminal whose crime was hidden in darkness is utterly useless. An evil that has been done and cannot be undone can only be punished by civil society in so far as it may affect others with the hope of impunity. If it be true that there are a greater number of men who either from fear or virtue respect the laws than of those who transgress them, the risk of torturing an innocent man should be estimated according to the probability that any man will have been more likely, other things being equal, to have respected than to have despised the laws. This useless prodigality of punishments, by which men have never been made any better, has driven me to examine whether the punishment of death be really useful and just in a well organised government. What kind of right can that be which men claim for the slaughter of their fellow-beings? Certainly not that right which is the source of sovereignty and of laws. For these are nothing but the sum-total of the smallest portions of individual liberty, and represent the general will, that is, the aggregate of individual wills. But who ever wished to leave to other men the option of killing him? How in the least possible sacrifice of each mans liberty can there be a sacrifice of the greatest of all goods, namely, of life? And if there could be that sacrifice, how would such a principle accord with the other, that a man is not the[170] master of his own life? Yet he must have been so, could he have given to himself or to society as a body this right of killing him.
  • 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: It is better to prevent crimes than to punish them. This is the chief aim of every good system of legislation, which is the art of leading men to the greatest possible happiness or to the least possible misery,[243] according to calculation of all the goods and evils of life. But the means hitherto employed for this end are for the most part false and contrary to the end proposed. It is impossible to reduce the turbulent activity of men to a geometrical harmony without any irregularity or confusion. As the constant and most simple laws of nature do not prevent aberrations in the movements of the planets, so, in the infinite and contradictory attractions of pleasure and pain, disturbances and disorder cannot be prevented by human laws. Yet this is the chimera that narrow-minded men pursue, when they have power in their hands. To prohibit a number of indifferent acts is not to prevent the crimes that may arise from them, but it is to create new ones from them; it is to give capricious definitions of virtue and vice which are proclaimed as eternal and immutable in their nature. To what should we be reduced if everything had to be forbidden us which might tempt us to a crime? It would be necessary to deprive a man of the use of his senses. For one motive that drives men to commit a real crime there are a thousand that drive them to the commission of those indifferent acts which are called crimes by bad laws; and if the likelihood of crimes is proportioned to the number of motives to commit them, an increase of the field of crimes is an increase of the likelihood of their commission. The majority of laws are nothing but[244] privileges, or a tribute paid by all to the convenience of some few.

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