Steam Activated Carbon

Our Powder activated carbon is manufactured using pure pine wood which is an excellent base for manufacturing activated carbons with good adsorption power.

The steam activated process is done by activating the charcoal in a rotary kiln by heating at high temperatures by steam. The activated carbon that comes out from the kiln is called unwashed activated carbon. These unwashed activated carbon has higher ash and iron content. This is reduced by washing the unwashed activated carbon with acid (HCl / H2SO4) and purified water. This results in reduction of ash content to as low as 1% and iron as low as 50 ppm.

The gradation of different qualities of activated carbon is done on the basis of Methylene blue value and iodine value. The iodine value is a better test as the particle size of iodine molecule is small enough to penetrate the smallest of pores. We can relate the iodine value of activated carbon directly to its surface area because of the above fact.

Given below are our standard technical specifications of our different washed and unwashed grades of steam activated carbon. You are requested to select your grade and let us know of your requirement.

Technical Specification of Activated Carbon (Unwashed grade) :

Properties	Grade
	DC-15	DC-21	DC-31	DC-41
Methylene Blue Value min (mg/gm)	150	200	250	300
Iodine Value min (mg/gm)	500	600	750	900
Moisture (%) Max	5	5	5	5
ph	9	9	9	9
Ash (%) Max	15	15	15	15
Ironppm Max	500	500	500	500
Acid Soluble Matter (%)	10	10	10	10
Water Soluble Matter (%)	7	7	5	5
Particle Size through 200 mesh (%)	90	90	90	90

Technical Specification of activated carbon (Acid washed) :

Properties	Grade
	DCW-21	DCW-31	DCW-41	DCW-51
Methylene Blue Value min (mg/gm)	220	250	300	350
Iodine value min (mg/gm)	600	750	900	1050
Moisture (%) Max	5	5	5	5
Ash (%)Max	4	3.5	1.5	1.25
Ironppm Max	200	200	100	70
ph	6.5-7.5	6.5-7.5	6.5-7.5	6.5-7.5
Chlorides ppm Max	1800	1800	1300	1000
Sulphate ppm Max	700	700	400	300
Acid Soluble Matter (%)	2	1	0.5	0.5
Water Soluble Matter (%)	1.5	0.8	0.2	0.1
Partical Size Through 200 Mesh (%)	90	90	90	90

Applications of Steam Activated Carbon Powder :

• » It is mainly used in the decolorisation of active pharmaceutical ingredients.
• » Decolorisation of plasticizers, drugs intermediates, dyes and dye intermediates, food colors, glycerine and fine chemicals.
• » Used also as a drug in capsules and tablet forms for stomach ailments and applications.
• » Used to purify intravenous fluid and injections.
• » Used by the pesticides and insecticides industry for decolorisation.