making process of poly aluminium ferric chloride from Andorra

making process of poly aluminium ferric chloride from Andorra
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  • What is poly aluminum-ferric chloride (PAFC)?
  • See Materials (Basel). 2025 April 25; 15 (9): 3104. Poly aluminum-ferric Chloride (PAFC) is a new type of high efficiency coagulant. In this study, high iron type gangue is used as a main raw material. It is calcined at 675 °C for 1 h and 3% CaF 2 is added to the calcined powder and reacted with 20% hydrochloric acid at 93 °C for 4 h.
  • Is polyaluminum ferric chloride an inorganic coagulant?
  • 1. Introduction Polyaluminum ferric chloride (PAFC) is an efficient inorganic polymeric coagulant [1], [2]. Many studies [3], [4], [5] have demonstrated that inorganic polymeric coagulants were more effective than conventional inorganic coagulating salts in coagulation due to their resistances to the influence of wastewater initial pH.
  • How is calcined aluminum ion reacted with hydrochloric acid?
  • It is calcined at 675 °C for 1 h and 3% CaF 2 is added to the calcined powder and reacted with 20% hydrochloric acid at 93 °C for 4 h. The leaching ratio of aluminum ions is 90% and that of iron ions is 91%. After Fe 2+ ions are oxidized in the filtrate, CaCO 3 is used to adjust the pH of the filtrate to 0.7.
  • How is monomeric aluminum chloride (hexahydrate form) extracted from Ethiopian kaolinite?
  • The monomeric aluminum chloride (hexahydrate form) was extracted from Ethiopian kaolinite using hydrochloric acid and its purity was >98 % [ 28 ]. The PAC samples were synthesized from extracted aluminum chloride solutions using calcium oxide (90 %, Blulux Laboratories Private Limited, India) as basification agent.