The invention discloses a method for preparing
selenium-coated basic
cupric chloride and an application thereof. The method comprises the following steps: a. crystalline phase basic
cupric chloride, water and a stabilizer are added to a reactor and added with
sodium hydroxide solution while stirring;
discharge, washing and negative pressure suction
filtration are carried out after reaction to obtain hydroxyl-modified crystalline phase basic
cupric chloride; b. the hydroxyl-modified crystalline phase basic cupric
chloride and water are added to the reactor, and added with
selenious acid while stirring, after reaction, added with
chalcanthite for reaction, discharged, washed and negative pressure suction
filtration are carried out to obtain the
selenium-coated basic cupric
chloride containing the crystalline phase basic cupric
chloride, basic cupric selenite and basic cupric
sulfate. The
selenium-coated basic cupric chloride prepared by the method can be taken as a
trace mineral supplement of animal feeds and has the advantages of no absorption of
moisture and no agglomeration, good fluidity, stable chemical properties, good cooperation with the feeds, low price, low addition cost, soluble subacidity, easy absorption and application, etc.