Page 171 - Advanced Mine Ventilation

Respirable Dust Control 151

Table 10.5 Dust Collection Efficiency With Various Surfactants

Percent Reduction
Initial Dust Pure Surfactant
3
No. Surfactant Concentration (mg/m ) Water (0.1%)
1 ALFONIC 1012-60 13.4 65.0 75.0
2 ALFONIC 1012-60 12.3 63.0 73.0
3 ALFONIC 1012-60 8.0 65.0 62.0
4 ALFONIC 610-50 10.0 67.0 63.0
5 ALFONIC 1214-70 11.6 66.0 65.0
o
6 ALFONIC 1214-70, at 50 F 16.1 66.0 69.0
o
7 ALFONIC 1214-70, at 78 F 16.1 66.0 64.0
8 Wen-Don Dust 15.3 65.0 64.0
9 Exxon Correxit 170 15.3 65.0 65.0
a
10 Sherox Variquat 638 16.2 57.0 61.0
a
11 Sherox Variquat 66 16.2 57.0 60.0
a
12 Sherox Variquat CE 100 21.2 59.0 60.0
13 Conoco AXS 41.0 81.5 75.5
14 Conoco C-550-LAS 46.5 77.5 87.0
15 Conoco C-650-LAS 36.5 79.0 83.5
16 ALFONIC 810-40 42.5 83.5 90.0
17 ALFONIC 10-40 48.5 80.0 90.0
18 ALFONIC 6-50 45.5 64.0 62.5
19 ALFONIC 8-50 43.5 72.5 83.5
20 ALFONIC 810-50 47.3 82.5 90.5
21 ALFONIC 10-50 37.0 71.0 86.0
22 ALFONIC 12-50 34.0 81.0 89.5
23 ALFONIC 14-50 48.0 84.0 90.5
24 ALFONIC 10-55 43.5 80.0 90.0
25 ALFONIC 10-60 45.5 48.0 59.5
26 ALFONIC 1012-60 49.0 87.0 91.5
27 ALFONIC 10-70 40.0 72.0 76.5
28 ALFONIC 10-80 48.0 75.5 80.5

ALFONIC brands are alcohol ethoxylates. The two numbers following the name show the number of carbon in the alcohol
and the percent ethoxylation respectively. The maximum improvement in dust collection efficiency of 15% is achieved by
ALFONIC 10e50. The cationic surfactants show no improvement over the nonionic surfactants.
a
Cationic.