[Soda Ash Knowledge] Daily Question (81) 2009.12.23
Thread Content
Fill-in-the-blank question 10. When selecting limestone, in addition to paying attention to the main content of CaCO3, one should also ensure that the total content of iron, aluminum, and silicon oxides is below ( ). 11. The exhaust pressure at the top of the kiln should be maintained at ( ), to prevent ( ) from leaking in and reducing the CO2 concentration; however, excessively high pressure will affect the ( ) of CaCO3. 12. The content of CaCO3 in limestone should reach ( ) at the first level, and the fixed carbon content in coke should reach ( ) at the first level. Please hide the reply; no scoring will be given in principle if it is not hidden. Specific hiding method: http://bbs.hcbbs.com/viewthread.php?tid=492556&highlight=%D2%FE%B2%D8
10. 5.0% 11. 50–300 Pa, air – decomposition rate 12. 90% 70%
10. 5.0% 11. 50–300 Pa, air, decomposition rate 12. 90%, 70%
10 50% 11 50-300Pa Air Decomposition rate 12 90% 70%
10 5.0% 11 50-300Pa Air Decomposition rate 12 90% 70% 1# chen3jun
Fill-in-the-blank question 10. When selecting limestone, in addition to paying attention to the main content of CaCO3, one should also ensure that the total content of iron, aluminum, and silicon oxides is less than (5.0%). 11. The exhaust pressure at the top of the kiln should be maintained at (50–300 Pa) to prevent air from leaking in and reducing the CO2 concentration; however, excessively high pressure will affect the (decomposition rate) of CaCO3. 12. The content of CaCO3 in limestone should preferably reach (90%), and the fixed carbon content in coke should preferably reach (70%). 1# chen3jun
10. 5.0% 11. 50–300 Pa, air, decomposition rate 12. 90%, 70%
1.5.0% 2.50–300 Pa, air, decomposition rate 3.90%, 70%
10. When selecting limestone, in addition to paying attention to the main content of CaCO3, it is also necessary to ensure that the total content of iron, aluminum, and silicon oxides is below 5%. 11. The exhaust pressure at the top of the kiln should be maintained at (50–300 Pa) to prevent air from leaking in and reducing the CO2 concentration; however, excessively high pressure will affect the (decomposition rate) of CaCO3. 12. The content of CaCO3 in limestone should preferably reach (90%), and the fixed carbon content in coke should preferably reach (70%).
10. 5.0% 11. 50~300Pa, air, decomposition rate 12. 90%, 70%
5%. 1 kilogram, air, synthetic. 80%, 87%.