[Soda Ash Knowledge] One Question per Day (52) 09.11.24
Thread Content
Please hide replies; otherwise, no scoring will be given in principle. Specific hiding method: http://bbs.hcbbs.com/viewthread.php?tid=492556&highlight=%D2%FE%B2%D8 Posts that have been edited are not rated. (The questions in this issue are taken from page 74 of \"Technical Worker Training Question Bank – Soda Ash Production Operators.\" An electronic version of this book is available for download at the soda ash information sharing site: http://bbs.hcbbs.com/thread-13140-1-2.html) Fill-in-the-blank questions: 11. Based on the differences among various indicators, the silver quantitation method can be further divided into ( ), ( ) and ( ). 12. When analyzing the components of kiln gas using an austenometer, sodium pyrogallate, an absorbent, is used to absorb ( ), an ammonium cuprous chloride solution in alkaline medium is used to absorb ( ), and sodium hydroxide solution is used to absorb ( ). 13. The formula for calculating the burning rate of heavy alkalis is ( ). 14. The formula for calculating the α value of AI in the combined alkali process is ( ). 15. The TCL- concentration in the mother liquor is 100 tt; its equivalent value in g/l is ( ).
11. Mohr method, Volhard method, Fajans method； 12、O2\CO\CO2 ； 13. Burning rate % = Na2CO3% + NaCl%; 14. α = FNH3(tt) : CO2(tt); 15. 172.3 grams/liter 1# chen3jun
11. Mohr method, Volhard method, Fajans method 12. Oxygen, carbon monoxide, carbon dioxide 13. Calcination rate % = %Na2CO3 + %NaCl 14. a = FNH3(tt)/CO2(tt) 15. 172.3 g/L
11. Based on the differences among various indicators, the silver quantification methods can be further divided into (Mohr method), (Volhard method) and (Fajans method). 12. When analyzing the components of kiln gas using an austenometer, sodium pyrogallate, an absorbent, is used to absorb oxygen; an ammonium cuprous chloride solution in alkaline medium is used to absorb carbon monoxide; and sodium hydroxide solution is used to absorb carbon dioxide. 13. The formula for calculating the burning rate of heavy alkalis is (Burning rate % = Na2CO3% + NaCl%). 14. The formula for calculating the a-value of AI in the caustic soda process is (a = FNH3(tt)/CO2(tt)). 15. The TCL- concentration in the mother liquor is 100 tt, which is equivalent to 172.3 g/l.
11. Mohr method, Volhard method, Fajans method 12. O2, CO, CO2 13. Calcination rate % = %Na2CO3 + %NaCl 14. α = FNH3(tt)/CO2(tt) 15. 172.3 g/L
11. The silver quantitation method can be further divided into (Mohr method), (Volhard method) and (Fajans method), depending on the different indicators used. 12. When analyzing the components of kiln gas using an austenometer, sodium pyrogallate, an absorbent, is used to absorb (O2), an ammonium cuprous chloride solution in an alkaline medium is used to absorb (CO), and a sodium hydroxide solution is used to absorb (CO2). 13. The formula for calculating the burning rate of heavy alkalis is (Burning rate % = NaCO3% + NaCl%). 14. The formula for calculating the a value of AI in the combined alkali process is (a = FNH3(tt)/CO2(tt)). 15. When the concentration of TCL- in the mother liquor is 100 tt, its equivalent value in g/L is 172.3 g/L
This post was last edited by lxq700918 on 2009-11-24 09:04. 11. The silver quantitation methods can be further divided into (Mohr method), (Volhard method), and (Fajans method) depending on the different indicators used. 12. When analyzing the components of kiln gas using an austenometer, sodium pyrogallate, an absorbent, is used to absorb oxygen; an ammonium cuprous chloride solution in alkaline medium is used to absorb carbon monoxide; and sodium hydroxide solution is used to absorb carbon dioxide. 13. The formula for calculating the burning rate of heavy alkalis is (Burning rate % = Na2CO3% + NaCl%). 14. The formula for calculating the a-value of AI in the combined alkali process is (a = FNH3(tt) / CO2(tt)). 15. The TCL- concentration in the mother liquor is 100 tt, which is equivalent to (172.3 g/l). 1# chen3jun
11. Mohr method, Volhard method, Fajans method 12. O2, CO, CO2 13. Burning rate % = Na2CO3% + NaCl% 14. а = FNH3(tt)/CO2(tt) 15. 172.3 g/l
11. The silver quantitation method can be further divided into (Mohr method), (Volhard method), and (Fajans method) depending on the different indicators used. 12. When analyzing the components of kiln gas using the Orsat apparatus, sodium pyrogallate as an absorbent absorbs (O2); ammoniacal ammonium cuprous chloride solution absorbs (CO); and sodium hydroxide solution absorbs (CO2). 13. The calculation formula for the calcination rate of sodium bicarbonate is (Calcination rate % = Na2CO3% + NaCl%). 14. The formula for calculating the α value of AI in the caustic soda process is (α=FNH3(tt)/CO2(tt)). 15. The TCL- concentration in the mother liquor is 100 tt, which is equivalent to 172.3 g/L.
11. Mohr method, Volhard method, Fajans method 12. O2, CO, CO2 13. Burning rate % = %Na2CO3 + %NaCl 14. α = FNH3(tt) / CO2(tt) 15. 172.3 g/L
1. Mohr method, Volhard method, Fajans method 2. Oxygen, carbon monoxide, carbon dioxide 3. Burning rate = sodium carbonate + sodium chloride 4. FNH3/CO2 5. 172.3