The invention relates to a preparation method for a
wax removing agent, and belongs to the technical field of
metal cleaning. The method comprises the steps that firstly oil-tea-cake middle
grease is removed by utilizing
petroleum ether, dried and degreased oil-tea-cake is obtained through filtering and
drying, then the dried and degreased oil-tea-cake and water are mixed, heated and rotated and evaporated till the oil-tea-cake is dried, and modified aqueous-extract oil-tea-cake
powder is obtained;
calcium oxide and
graphite are mixed, ball-milled and calcined, mixed modified
powder is obtained, then
sepiolite particles are taken as raw materials, and
sepiolite fiber serous fluid is prepared and obtained; and the
sepiolite fiber serous fluid and the modified aqueous-extract oil-tea-cake are mixed and heated,
oleic acid is added and
ammonium hydroxide is added drop by drop, separation is conducted, after lower layer
sediment is grinded and dried, the lower layer
sediment and the mixed modified
powder are mixed and ball-milled, and then the
wax removing agent can be obtained. According to the preparation method for the
wax removing agent, the wax removing efficiency of the wax removing agent prepared by the method is high, wax scale can be effectively removed, any
corrosion substance is not generated in the using process, non-corrosiveness to
metal workpieces is achieved, and the using range of the wax removing agent prepared by the method is widened.