| 摘要 |
<p>834,778. Mixing liquids in flow. SEPARATOR A. B. Dec. 5, 1958 [Dec. 12, 1957], No. 39291/58. Class 86 To facilitate the separation of the components of a product; the separation of tall oil from the rest of a water-diluted sulphate soap is one of the examples described; substances which act as emulsion stabilizers and hinder the separation, are destroyed by a reagent which is added continuously to a circulating flow of the product and reagent before the treated product is passed continuously to the separator. As shown, the product is introduced at 7 and mixes in the line 4 with product and reagent already circulating. The mixture passes to a reaction tank 2 and from thence through a pump 5 and line 3 to a reaction tank 1. In the treatment of sulphate soap, 1000 Kg of soap, diluted with water, is introduced per hour at 7, the dilution being such that the tall oil content is 50%. The reagent is sulphuric acid, about 70 Kg per hour being introduced at 6, the quantity being regulated by a pH-meter 10 connected at 11 for automatic control to a dosing device 12. The pH-meter is adjacent the withdrawal line 8 leading to the centrifugal separator 9. The large excess of acid in the tank 1 ensures the precipitation of impurities, especially lignine which emulsifies tall oil, and the lignine is not redissolved when it mixes with the freshly introduced soap, provided that the pH- value is kept below 4. Other examples are the separation of soap stock from peanut oil and the separation of fatty material from finely ground fish, e.g. herrings.</p> |
