Ukrainian 10, 20, 30
Explore the processing
of potash ore to create a
finished product.
Indicators for this outcome
| (a) | Identify the chemical components of a potash ore sample. |
| (b) | Describe the two methods (i.e., flotation and evaporation) of removing potash from brine solutions. |
| (c) | Explore the difference between a cooling pond and crystallization processes to evaporate brine and crystallize potash. |
| (d) | Illustrate the steps in processing potash ore into a range of marketable products. |
| (e) | Experiment with processes (i.e., crushing and grinding [desliming], flotation, screening, compaction, evaporation, crystallization and drying) used to separate potash ore into component parts. |
| (f) | Examine how the use of harmful chemicals has changed in potash processing. |
| (g) | Describe the reprocessing of tailings piles. |
| (h) | Summarize the steps in processing potash brine into a range of marketable products. |
| (i) | Describe the difference in processed mineral sizing and colour of final product (pink vs white) and why white potash is often dyed pink. |
| (j) | Analyze the differences in the steps in processing potash ore and brine to determine their cost and production efficiency. |
| (k) | Explain why the moisture content of potash is kept below 0.5% for the finished product. |
| (l) | Explore the advantages and disadvantages of rotary and fluid bed dryers. |
| (m) | Investigate how the finished products from different potash companies may vary in composition (e.g., size distribution and chemistry). |
| (n) | Research how innovations in technology improve the efficiency and safety of the milling process. |
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