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  • [发明专利]US19730395013 _ WRIGHT, H. DUDLEY 1973年09月07日
    Air containing a pollutant, such as hydrogen sulfide, sulfur dioxide or an organic compound such as a mercaptan, an aldehyde, an amine, an alcohol, and the like, is contacted with a liquid impermeable module or cell having as a surface thereof a liqui...
  • [发明专利]US19730370086 _ BETZ LABORATORIES, INC. 1973年06月14日
    The present invention relates to certain processes and compositions useful for inhibiting the growth of slime in water and, in particular, water used for industrial purposes; for example, in the manufacture of pulp paper, in the manufacture of paper, ...
  • [发明专利]US19730333808 _ ABCOR INC,US 1973年02月20日
    A process of treating wool-scouring liquor and wool-scouring liquor centrifuge effluent, both containing wool-grease emulsion, by the utilization of membranes to concentrate the liquor before centrifuging, or to eliminate the centrifuging step by conc...
  • [发明专利]US19730415969 _ KENICS CORPORATION 1973年11月15日
    An electrolytic cell comprising an outer conduit electrode structure and an inner electrode structure comprising a series of sheet-like elements extending longitudinally within the outer electrode structure. The cell is adapted to have a fluid electro...
  • [发明专利]US19730369345 _ SOCIETA ITALIANA RESINE S.I.R. S.P.A. 1973年06月12日
    Phenol is extracted from waste waters by reacting formaldehyde, urea and phenol containing waste waters at a basic pH and high ratios of formaldehyde to urea, keeping the product at relatively acidic pH-values for short reaction times, reacting the ob...
  • [发明专利]US19730374211 _ LOWI, JR., ALVIN WRIGHT, CLIFFORD C. 1973年06月27日
    A liquid separation purification system applicable to extracting purified liquids from or concentrating solids in a liquid feed material. The system is particularly useful for extracting potable water from sea water. Cool feed liquid is pumped through...
  • [发明专利]US19730399057 _ BP CHEM LTD,GB 1973年09月20日
    Mercury is recovered from aqueous solutions containing elemental mercury in finely divided or colloidal form or in the form of a soluble inorganic compound by passing a stream of inert gas eg., air or nitrogen through the aqueous solution in the prese...
  • [发明专利]US19730409028 _ MILCHEM INCORPORATED 1973年10月24日
    A product of the process for preparing an acrylic composition which is formed from about 80 to 90 parts by weight acrylic acid, about 7 to 15 parts by weight of 2-mercaptoethanol, and about 1.5 to 5 parts by weight ammonium persulfate. The produced ma...
  • [发明专利]US19730343576 _ AMERICAN CYANAMID COMPANY 1973年03月21日
    Bridged halotriazine compounds of the formula WHERE A represents a group selected from vinylene, phenylene, biphenylene, stilbyl and ethynylenebis(p-phenylene) groups; Z represents a group selected from -O-, -S- or -N(H)-; n is an integer selected fr...
  • [发明专利]US19730341032 _ FMC CORPORATION 1973年03月14日
    An apparatus for pumping and simultaneously separating the liquid and solid components from debris laden wastewater is disclosed which utilizes a screw pump to elevate the liquid and convey the liquid over a separation screen. The liquid component and...
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