Abstract: The present disclosure is in the field of chemical sciences. The present disclosure relates to a process for removal of anion from aqueous solution. The process involves removal of sulphate ion from aqueous solution using cation and organic solvent that enables precipitation of the sulphate ion from the aqueous solution. The process is simple, efficient, cost-effective, ecofriendly, enables recovery of sulphate ions, calcium ions as calcium sulphate with high purity and also enables the recovery of organic solvent in the range of about 88% to about 99%.

Abstract: The instant disclosure relates to a composition comprising potassium carbonate and calcium acetate, optionally along with sulfur containing compound. The composition of the present disclosure reduces coke formation during hydrocarbon cracking, particularly reduces surface coke and spalled coke during hydrocarbon cracking when compared to hydrocarbon cracking without the said composition. The disclosure further relates to a method for reducing formation and/or deposition of coke during pyrolysis or cracking of hydrocarbons.

Abstract: The present disclosure is in the field of chemical sciences. The present disclosure relates to a process for removal of anion from aqueous solution. The process involves removal of sulphate ion from aqueous solution using cation and organic solvent that enables precipitation of the sulphate ion from the aqueous solution. The process is simple, efficient, cost-effective, ecofriendly, enables recovery of sulphate ions, calcium ions as calcium sulphate with high purity and also enables the recovery of organic solvent in the range of about 88% to about 99%.