Experimental study on beneficiation of high-iron-potassium feldspar

A study was conducted to investigate the beneficiation of high-iron-potassium feldspar. The study aimed to develop a new process that would selectively separate iron-bearing minerals from potassium feldspar. Here are the key findings of the study:

1. During the initial stage of the study, XRD and chemical analysis were conducted, which revealed that the high-iron-potassium feldspar contained iron-bearing minerals such as magnetite and hematite.

2. Flotation experiments using different collectors revealed that anionic collector (sodium oleate) is effective in separating iron-bearing minerals from potassium feldspar.

3. Sodium oleate was found to have a higher selectivity for magnetite than hematite, which allowed for the selective separation of magnetite from potassium feldspar.

4. The flotation conditions were optimized for the separation of magnetite from potassium feldspar, which included adjusting the pH of the solution, the collector dosage, and the conditioning time.

5. A flowsheet was developed based on the optimized conditions, which resulted in a concentrate with a K2O content of 12.69% and an Fe2O3 content of 0.09%.

In conclusion, the study demonstrated that anionic flotation using sodium oleate is an effective method for separating iron-bearing minerals from high-iron-potassium feldspar. The optimized conditions resulted in a concentrate with a high potassium content and low iron content. The results of the study may have practical applications in the beneficiation of high-iron-potassium feldspar ore.

Here is a table summarizing the key findings of the experimental study on beneficiation of high-iron-potassium feldspar:

|Experiment/Process Step|Method|Results|

|---|---|---|

|Initial Analysis|XRD and chemical analysis|Identified the presence of iron-bearing minerals such as magnetite and hematite in the high-iron-potassium feldspar.|

|Flotation|Anionic flotation using sodium oleate|Selective separation of iron-bearing minerals from potassium feldspar. Sodium oleate has a higher selectivity for magnetite than hematite, resulting in the selective separation of magnetite from potassium feldspar.|

|Optimization|Adjustment of pH, collector dosage, and conditioning time|Optimized the flotation conditions for separation of magnetite from potassium feldspar.|

|Flowsheet Development|Developed a flowsheet based on optimized conditions|Resulted in a concentrate with a K2O content of 12.69% and an Fe2O3 content of 0.09%.|

The above table summarizes the key findings of the experimental study on beneficiation of high-iron-potassium feldspar. The study used XRD and chemical analysis to identify the presence of iron-bearing minerals in the high-iron-potassium feldspar. Anionic flotation using sodium oleate was found to be an effective method for selective separation of iron-bearing minerals from potassium feldspar. The flotation conditions were optimized to produce the best results, which were used to develop a flowsheet resulting in a concentrate with high potassium content and low iron content. These findings may have potential practical applications in the beneficiation of high-iron-potassium feldspar ore.