The invention discloses a process method for extracting
potassium from
seawater through a
zeolite process. The process method comprises the following steps that clean natural
zeolite with the
diameter size being 0.8 mm-2 mm is selected; the selected
zeolite is boiled through saturated
salt water for 2 h and remained for standby application, and the
solid-
liquid ratio of the zeolite to the saturated
salt water is 1:10; the treated zeolite is put into reaction tanks, the
seawater with the temperature being 8 DEG C-10 DEG C is uniformly sent into the reaction tanks, and the
seawater passing through the reaction tanks is circularly sent into the reaction tanks again; an
ammonium chloride solution with the concentration being 80%-90% is added into the reaction tanks to serve as eluents; and the solution is cooled,
potassium chloride crystals are precipitated, and the residual solution is sent into the step c to be recycled. According to the process method for extracting the
potassium from the seawater through the zeolite process, the natural zeolite serves as an adsorbing agent, an alkali-filtered deaminized mother solution serves as the eluents at a normal temperature, and extraction of the potassium from the seawater and combination of hot-method and alkali making are combined, so that
heat consumption in potassium extraction part is reduced, the resource is wide, the cost is low,
pollution is not caused, and the economical benefit is high.