[Soda ash knowledge] Daily question (75) 2009.12.17
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Multiple choice questions 1. The decomposition reaction of limestone mainly occurs in ( ) A. Preheating zone B. Calcination zone C. Cooling zone 2. Limestone begins to decompose around ( ), when the CO2 partial pressure is 101KPa A. 300℃ b． 600℃ C. 890℃ 3. Generally, the limestone calcination temperature is controlled at ( ) A. 940--1200℃ B. 1000--1300℃ C. 1100--1400℃ 4. Among the following options, the factors that do not affect the production capacity of the lime kiln are ( ) A. Fuel burning rate B. Limestone degree C. Please hide the reply for the single bell cap on the top of the kiln. If you don't hide it, no rating will be given in principle. Specific hiding methods: http://bbs.hcbbs.com/viewthread.php?tid=492556&highlight=%D2%FE%B2%D8
1. The decomposition reaction of limestone is mainly in (B) A. Preheating zone B. Calcination zone C. Cooling zone 2. Limestone begins to decompose around (C), when the CO2 partial pressure is 101KPa A. 300℃ b． 600℃ C. 890℃ 3. Generally, the limestone calcination temperature is controlled at (A) A. 940--1200℃ B. 1000--1300℃ C． 1100--1400℃ 4． Among the following options, the factors that do not affect the production capacity of the lime kiln are (C) A. Fuel burning rate B. Limestone degree C. Kiln top single bell cap