Antiflocculation additive

Table 6.2. Effect of antiflocculation additive (CrStj) on sedimentation stability of water-Diesel fuel emulsions stabilised by nonionics...

One can see that surfactants like esters of monobasic alcohols and higher acids give water-in-hydrocarbon emulsions the sedimentation stability of which is 3—5 minutes. Application of an antiflocculation additive leads to a significant increase in sedimentation stability of up to 10 hours. Note that emulsions stabilised by a nonionic like Span have a high coalescence stability there is no aqueous serum separated as a continuous layer within several months. 

Table 6.2 presents data on the sedimentation stability of emulsions stabilised by some typical nonionics as an example of efficiency of flocculation inhibition using chromium stearate additives as antiflocculant. 

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