Document pBYO5N5LB23mMK4Eq0kaG6zKk
076683 t.
Condition 1 (control) 2
3 4
$ Clay 4 1 1 1
$ Asbestos
3 3 3
$ Ti02 8.25 7.0 6.0 6.0
$ Glue 0.25 0.25 0.25
Opacity 89.5 92.5 91. 91.
In another trial, on a 37 lb bond paper, 2$ asbestos was used for a corresponding amount of clay. Titanium dioxide amounting to 2.5$ of the furnish was also going into this sheet for opacity. A summary of these results follows:
Condition
Opacity
Pre-trial
82.5
2$ Asbestos Aided Post Trial
83-5 82.0
PAPER ANALYSIS
$ Ti02 1.64 2.20 1.75
$ Ash 12.0
13.9 12.2
$ Ti02 Retention 65.5 88. 70.
These data show an Improvement in T102 retention from about 68$ to 88^ with a 2$ asbestos addition.
In addition, the saveall effluent was monitored during both the control and trial periods. The average solids content during the pre-trial and post trial period was 2.3 pounds per 1000 gallons. During the trial the solids con tent was reduced to 1.5 lbs per 1000 gallons. Due to the improved efficiencyresulting from the asbestos, a 35$ reduction in solids loss was realized.
It is not unusual to expect saveall efficiencies improvement during these trials. In one trial, particular attention was paid to the saveall unit since it had been operating under a heavy load with a low efficiency. In this instance both the influent and effluent were monitored. A summary of these data follows: