TWO:The second epoch of history consists in the hard and terrible transition from errors to truth, from the darkness of ignorance to the light. The great clash between the errors which are serviceable to a few men of power and the truths which are serviceable to the weak and the many, and the contact and fermentation of the passions at such a period aroused, are a source of infinite evils to unhappy humanity. Whoever ponders on the different histories of the world, which after certain intervals of time are so much alike in their principal episodes, will therein frequently observe the sacrifice of a whole generation[248] to the welfare of succeeding ones, in the painful but necessary transition from the darkness of ignorance to the light of philosophy, and from despotism to freedom, which result from the sacrifice. But when truth, whose progress at first is slow and afterwards rapid (after mens minds have calmed down and the fire is quenched that purged a nation of the evils it suffered), sits as the companion of kings upon the throne, and is reverenced and worshipped in the parliaments of free governments, who will ever dare assert that the light which enlightens the people is more injurious than darkness, and that acknowledging the true and simple relations of things is pernicious to mankind?It is incomparably better to prevent crimes than to punish them.
THREE: Whosoever disturbs the public peace, or obeys not the laws, that is, the conditions under which men bear with and defend one another, ought to be excluded from society, that is, to be banished from it.Others again measure crimes rather by the rank of the person injured than by their importance in regard to the public weal. Were this the true measure of crimes, any act of irreverence towards the Supreme Being should be punished more severely than the assassination of a monarch, whereas the superiority of His nature affords an infinite compensation for the difference of the offence.
THREE: As soon as the proofs of a crime and its reality are fully certified, the criminal must be allowed time and opportunity for his defence; but the time allowed must be so short as not to interfere with the speediness of his punishment, which, as we have seen, is one of the principal restraints from crime. A false philanthropy seems opposed to this shortness of time; but all doubt will vanish, on reflection that the more defective any system of law is, the greater are the dangers to which innocence is exposed.
THREE:
THREE:My occupation is to cultivate philosophy in peace, and so to satisfy my three strongest passions, the love, that is, of literary fame, the love of liberty, and pity for the ills of mankind, slaves of so many errors. My conversion to philosophy only dates back five years, and I owe it to my perusal of the Lettres Persanes. The second work that completed my mental revolution was that of Helvetius. The latter forced me irresistibly into the way of truth, and aroused my attention for the first time to the blindness and miseries of humanity.DAlembert, Diderot, Helvetius, Buffon, Hume, illustrious names, which no one can hear without emotion! Your immortal works are my continual study, the object of my occupation by day, of my meditation in the silence of night. Full of the truth which you teach, how could I ever have burned incense to worshipped error, or debased myself to lie to posterity? I find myself rewarded beyond my hopes[6] in the signs of esteem I have received from these celebrated persons, my masters. Convey to each of these, I pray you, my most humble thanks, and assure them that I feel for them that profound and true respect which a feeling soul entertains for truth and virtue.
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.
- 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.
The aromatic polyimide membrane is highly permeable to water vapor but less permeable to vapors of organic compounds such as alcohol etc.
- 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.
Acetone, ethanol, methyl ethyl ketone, butanol, isopropyl alcohol, ethyl acetate, methyl isobutyl ketone, others (including hexane and toluene).
- Product guide
- Alcohol distillation
- Distillation equipment
- High-purity distillation system
- Membrane separation type solvent dehydration system
- Reactor
- Evaporative concentration equipment
- Coulter spray dryer
- Microwave treatment system
- Filter dryer
- OS filter (continuous vacuum rotating filter)
- Hydrocyclone (liquid cyclone)
- Thermal oil heater (heat medium boiler)
- Process air heater (air heater)
- Ammonia treatment system
- Catalytic deodorizing equipment for ammonia and VOC gas
- Stationary cryogenic storage tank
- Portable cryogenic container
- Cryogenic liquefied gas evaporator