Operation steps:
A cylindrical carbon, operation steps
1, take 100g samples, the varieties of size regulations minimum layer sieve standard sieve, vibration sieve machine in screening 5min,
Take the screen sample at 140± 10℃constant temperature drying box for drying to constant weight.
2, dosage of cylinder measuring 50mL drying sample, and weighing, into the No. 2 steel tube, into the 5 ball, with a tight lid, actuate apparatus, at the same time clock, running 5 ± 0.08min.
3, remove the steel cylinder, the cylinder cover is opened, pouring steel ball, the sample to the original standard sieve, vibration sieve machine for screening 5min.
4, collected in the sieve layer on specimen, called its quality.
Two, amorphous carbon particles steps
1, take 100g samples, the varieties of size regulations minimum layer sieve standard sieve, vibration sieve machine in screening 5min, take the screen sample at 140± 10℃constant temperature drying box for drying to constant weight.
2, dosage of cylinder measuring 50mL drying sample, and weighing, into the No. 1 steel tube, into the 10 ball, lid lid, actuate apparatus, at the same time clock, running 5 ± 0.08min.
3, remove the steel cylinder.
4, the cylinder cover is opened, pouring steel ball, the sample to the original standard sieve, vibration sieve machine for screening 5min.
5, collected in the sieve layer on specimen, called its quality.
Three, synthesis of vinyl acetate catalyst support activated carbonThe determination of particles retained by 32~35 specimen in 130~150 ℃drying 5h, after being cooled to room temperature after weigh 50g ( called quasi to 0.01g), placed in the drum, and the drum is added to 14mm diameter steel ball 10, tighten the drum cover, placing the transmission device, with 66 r/min axial horizontal rotation speed 15min. The specimen is removed, placed 35 objective standard sieve, vibration sieve machine vibration sieve in 5 min, and retained in the 35 mesh sieve on sample weight.