52 yuan. The raw material price of one ton of quicklime is 80 yuan/ton, the fuel price is 1.200 yuan/ton, the production electricity cost is 1.2 kwh, and the rest miscellaneous expenses are 1 yuan/hour. The total production cost is 298 yuan/ton, and the price is 350 yuan/ton, so the profit of one ton of quicklime is 52 yuan. Lime with calcium oxide as the main component is usually made of natural rocks with calcium carbonate as the main component by high temperature calcination, which can be decomposed into carbon dioxide and calcium oxide.