Patent ID: 9302249
Filing Date: 2016-04-05
CPC Classification: B01J,C01B

Claim Text:
1. A method for preparing composite sulfur-modified powdered activated carbon, comprising the following steps: (a) providing a powdered activated carbon; (b) proceeding a drying step on the powdered activated carbon; (c) proceeding a liquid-phase sulfur modification step on the dried powdered activated carbon, wherein the liquid-phase sulfur modification step includes immersing the dried powdered activated carbon in a sulfur-containing solution, and the sulfur-containing solution is a sodium sulfide (Na (d) proceeding a granulation step, so as to obtain a granular activated carbon from the sulfur-modified powdered activated carbon; and (e) proceeding a heating step on the granular activated carbon, so as to form the composite sulfur-modified powdered activated carbon.