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    • 101. 发明授权
    • Method of laundering items and purifying waste water therefrom
    • 洗涤物品并从中净化废水的方法
    • US5529696A
    • 1996-06-25
    • US504777
    • 1995-07-20
    • Dave Tibbitts
    • Dave Tibbitts
    • B01D17/05C11D3/02C11D3/12C11D11/00
    • C11D11/0076C11D3/046C11D3/1213
    • A method of laundering oily items comprises laundering said items in a wash solution which includes a surfactant system and a source of alkalinity. The source of alkalinity is an alkali metal aluminate preferably sodium aluminate at a concentration effective to have at least about 25 ppm of the alkali aluminate present in the wash solution measured as alumina. The wash solution is then separated from the laundered items and its pH reduced to about 9 or less. A destabilizing polymer such as diallyldimethyl ammonium chloride can be added. This combination causes the oil and grease to separate from the wash solution and float to the surface along with the sodium aluminate. If the concentration of the sodium aluminate is above about 100 ppm preferably about 250 ppm, there is no need to add the destabilizing polymer. This does not affect the overall efficiency of the detergent, yet significantly improves the ability to separate the oil and grease from the waste wash solution.
    • 洗涤油性物品的方法包括在包括表面活性剂体系和碱度源的洗涤溶液中洗涤所述物品。 碱度的来源是碱金属铝酸盐,优选铝酸钠,其浓度有效地以氧化铝的形式测量洗涤溶液中至少约25ppm的碱金属铝酸盐。 然后将洗涤溶液与洗涤物品分离,并将其pH降低至约9或更小。 可以加入去稳定的聚合物如二烯丙基二甲基氯化铵。 这种组合使得油和油脂与洗涤液分离并与铝酸钠一起漂浮到表面。 如果铝酸钠的浓度高于约100ppm,优选约250ppm,则不需要添加不稳定的聚合物。 这不会影响洗涤剂的整体效率,而且显着提高了从废洗涤溶液中分离油脂的能力。
    • 106. 发明授权
    • Treatment of emulsions
    • 乳液处理
    • US5453205A
    • 1995-09-26
    • US150138
    • 1994-03-29
    • Geoffrey R. Browne
    • Geoffrey R. Browne
    • B01D17/02B01D17/05C02F1/52C02F1/56
    • C02F1/5236B01D17/0202C02F1/52Y10S210/909
    • A process for separating the components of an emulsion. The process comprises, adjusting the pH of the emulsion to 4 less, adding a coagulant to the emulsion, forming a substantially uniform dispersion of inert particulate carrier in the emulsion adding a polyelectrolyte flocculent either during or after the step of forming the substantially uniform dispersion of inert particulate carrier in the emulsion to form floccs of the inert particulate carrier, the dispersed liquid phase, and the contaminants, allowing the floccs to settle, and separating the relatively clarified continuous liquid phase from the settled floccs.
    • PCT No.PCT / AU92 / 00250 Sec。 371日期:1994年3月29日 102(e)1994年3月29日PCT PCT 1992年5月29日PCT公布。 出版物WO92 / 21421 日期1992年12月10日。一种用于分离乳液组分的方法。 该方法包括:将乳液的pH调节到4以下,向乳液中加入凝结剂,在乳液中形成基本均匀的惰性颗粒载体分散体,在形成基本上均匀的分散体的步骤期间或之后,加入聚电解质絮凝剂 惰性颗粒载体,以形成惰性颗粒载体,分散液相和污染物的絮状物,使絮状物沉降,并将相对澄清的连续液相与沉降的絮凝物分离。