US 12,168,218 B1
Method of preparing adsorbent from date pit and a polymer
Junaid Saleem, Doha (QA); Sk Safdar Hossain, Hofuf (SA); Zubair Khalid Baig Moghal, Doha (QA); and Gordon McKay, Doha (QA)
Assigned to KING FAISAL UNIVERSITY, Al-Ahsa (SA)
Filed by KING FAISAL UNIVERSITY, Al-Ahsa (SA)
Filed on Oct. 11, 2023, as Appl. No. 18/378,826.
Int. Cl. B01J 20/24 (2006.01); B01J 20/26 (2006.01); B01J 20/28 (2006.01); B01J 20/30 (2006.01); C02F 1/28 (2023.01); C02F 101/30 (2006.01)
CPC B01J 20/3078 (2013.01) [B01J 20/24 (2013.01); B01J 20/261 (2013.01); B01J 20/28016 (2013.01); B01J 20/28061 (2013.01); B01J 20/305 (2013.01); C02F 1/285 (2013.01); C02F 1/286 (2013.01); C02F 2101/308 (2013.01)] 14 Claims
 
1. A method for preparing an adsorbent from date pit char and a polymer, comprising:
obtaining date pits;
pyrolyzing the date pits to provide a date pit char;
activating the date pit char to provide an activated date pit char;
dissolving at least one polymer in an organic solvent to obtain a polymer solution;
dispersing the activated date pit char in the polymer solution to provide a mixture;
extracting the organic solvent from the mixture to provide a composite; and
annealing the composite to provide the adsorbent;
wherein the organic solvent is p-cymene;
wherein dissolving the at least one polymer in the organic solvent comprises:
heating the organic solvent containing the polymer to a temperature ranging from about 120° C. to about 140° C.; and
stirring the organic solvent containing the polymer for about 20 minutes to about 40 minutes.