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  • [发明专利]JP19780137533 _ MITSUBISHI HEAVY IND LTD 1978年11月08日
  • 2.
    [发明专利]JP19780049360U _ 1978年04月17日
  • [发明专利]WO1978US00133 _ MALLINCKRODT INC 1978年10月27日
    Granular, free-flowing, slow release plant nutrient compositions suitable for use in growth media are prepared by treating granules of a calcined clay, such as montmorillonite, attapulgite, sepiolite chlorite or vermiculite, with one or more solutions...
  • [发明专利]US19780898159 _ GESELLSCHAFT ZUR ERRICHTUNG VON UNWELTSCHUTZANLAGEN MBH 1978年04月20日
    A first thermally insulated hollow cylinder is mounted for rotation about its longitudinal axis and a second hollow cylinder is mounted within the first cylinder for conjoint rotation therewith. The ends of the cylinders are closed to define a first a...
  • [发明专利]US19780930045 _ TROUILLARD, CHARLES 1978年08月01日
    Apparatus for dehydrating organic waste material in a rotary oven. The oven is within an insulated chamber and the oven is heated by a burner. The waste gases from the oven are recycled and burnt in the burner. The dried product is usable for soil enr...
  • [发明专利]US19780870451 _ TRIOMF FERTILIZERS 1978年01月18日
    A water soluble mixed fertilizer composition in solid form and a method of producing the fertilizer composition. The fertilizer comprises a mixture of urea, phosphoric acid and at least one potassium salt selected from the class comprising potassium s...
  • [发明专利]US19780935962 _ BOYKO, MICHAEL 1978年08月22日
    A solar chemical process for converting sewer sludge from a gelatinous mass into a manageable product suitable for fertilizer includes the manufacture of a carbonaceous product by treating cellulose waste such as newspaper with sulfuric acid and heati...
  • [发明专利]US19780911928 _ UHDE, FRIEDRICH GMBH 1978年06月02日
    Magnesium-bearing phosphate rock in small grain size is converted into phosphoric acid so that no by-products, which are difficult to dispose of are produced. The crushed rock is mixed with water and subsequently acidified with nitric acid, the reacti...
  • [发明专利]US19780868287 _ ETHERINGTON, ALFRED B 1978年01月10日
  • [发明专利]US19780970964 _ PROCTER, DONALD 1978年12月19日
    A process for the production of dehydrated foodstuffs, feedstuffs or plant fertilizers includes the following steps: (a) preparing protein-containing animal matter to a particulate size acceptable to homogenizing equipment; (b) subjecting the comminut...
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