The name is absent

I !Water in middle oil layer
BB Water at bottom oil layer
^BSolid in oil layer

_WateL
CiriteirSa

Silicate concentration (10^⁴ M)

Adding 200 ppm PR₅

I !Water in middle oil layer
^B Water at bottom oil layer
^BSolid in oil layer

Silicate concentration (1(Γ⁴ M)

Silicate concentration (10^⁴ M)

Adding 200 ppm PR₆

Figure 5.20 Water and solid content in oil layer and solid distribution in different
layers adding 200 ppm PR₅ and PR₆ with different amount of silicate, N∕B 4.0

Fig. 5.21 shows bar diagrams of residual water/ solid content in oil layer and
solid distribution in different layers of 24 hours emulsion (dilution ratio 0.7) using
200 ppm demulsifiers PR₆ to PR₆ with and without Na₆SiO₃. The red and black
dashed lines show the desired residual water and solid content in oil (2.0% and
0.9%, respectively).

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