Beneficiation method for iron removing and impurity reducing combined process of feldspar ore

The invention discloses a beneficiation method for an iron removing and impurity reducing combined process of feldspar ore. The method comprises the following steps: crushing and grinding the crude ore, wherein the fineness of 65 percent thereof is required to be 0.074mm and the grading overflow concentration is 30 percent; and producing high-grade feldspar raw material by the combined beneficiation process of secondary flotation, permanent magnetic separation and high-gradient strong magnetic separation, wherein the technical indexes are that the product yield is 89 percent, the product contains 0.11 percent of Fe2O3 and the whiteness is 62 percent. Thus, the combined process has low requirement on the quality of the feldspar crude ore, high utilization ratio of resources, high product quality and broad market prospect.