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  • 1.
    [发明专利]JP19720127591 _ 1972年12月19日
    1380979 Animal feed FLOYD RUSH CORP 9 Nov 1972 [29 Dec 1971] 51774/72 Heading A2B [Also in Divisions B2 and C1] An apparatus for drying and compressing garbage, comprises lower hot plate means, upper hot plate means and means for moving said upper and...
  • [发明专利]US19720268595 _ INTERNATIONAL TELEPHONE AND TELEGRAPH CORPORATION 1972年07月03日
    Polyphenolic components of coniferous tree barks are reacted with a concentrated aqueous solution containing ammonia and sulfur dioxide to produce aminated sulfite reaction products having high nitrogen contents. The products have a number of valuable...
  • [发明专利]US19720255726 _ MAVROVIC I,US 1972年05月22日
    Urea is prilled by spraying urea droplets downwardly into a solidification zone where it is contacted with a substantially inert gas. Prills are directed into a collector by diverting their flow by directing a gas through a perforated, inverted cone o...
  • [发明专利]USD3738821 _ RESERVE OIL AND GAS CO,US 1972年05月18日
  • [发明专利]US19720278706 _ INTERNATIONAL MINERALS & CHEMICAL CORPORATION 1972年08月08日
    An animal feed supplement is prepared from fluorine-containing phosphate rock by introducing the phosphate rock in finely divided form into a reactor wherein a temperature above the melting point of the phosphate rock and a steam atmosphere are mainta...
  • [发明专利]US19720299360 _ OESTERR STICKSTOFFWERKE AG,OE 1972年10月20日
    Granules of fertiliser based on ammonium nitrate are conditioned to make them non-dusting and non-caking by applying to the surface of the granules a protective coating of a substituted s-triazine derivative.
  • [发明专利]USD3785797 _ CHEM CONSTRUCTION CORP,US 1972年09月05日
  • [发明专利]US19720318424 _ HANOVER RES CORP,US 1972年12月26日
    Process and apparatus for recovering residual oil from solids previously substantially dehydrated by a process wherein a slurry of water-wet solids in oil is subjected to a heat evaporation step to substantially remove the water. The oil is then large...
  • [发明专利]US19720297821 _ WILLCHEMO INC,US 1972年10月16日
  • [发明专利]US19720268996 _ NCR,US 1972年07月05日
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