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English Translations » 氯碱技术圈 » [Soda Ash Knowledge] Daily Question (69) 12.11.2009

[Soda Ash Knowledge] Daily Question (69) 12.11.2009

2009-12-11View Original

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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 Posts that have been edited are not rated. (The topic for this issue is taken from page 6 of \"Technical Worker Training Question Bank – Soda Ash Production Operators.\" An electronic version of this book is available for download in the soda ash information sharing area: http://bbs.hcbbs.com/thread-13140-1-2.html) Short answer questions: 1. What are the important reactions in the process of producing soda ash using the ammonia-soda method? Write the chemical equation.
Reply #22009-12-11
NaCl + NH3 + H2O + CO2 = NaHCO3↓ + NH4Cl 2NaHCO3 = Na2CO3 + H2O + CO2↑ CaO + H2O = Ca(OH)2 2NH4Cl + Ca(OH)2 = CaCl2 + 2NH3↑ + 2H2O
Reply #32009-12-11
There are mainly six reactions: NaCl+NH3+H2O+CO2--NH4Cl+NaHCO3; 2NaHCO3--NaCO3+H2O+CO2; CaCO3--CO2+CaO; CaO+H2O--Ca(OH)2; 2NH4Cl+Ca(OH)2--2NH3+CaCl2+2H2O. 1# chen3jun
Reply #42009-12-11
The main reactions are as follows: NaCl + NH3 + H2O + CO2 === NH4Cl + NaHCO3; 2NaHCO3 === Na2CO3 + H2O + CO2; CaCO3 === CO2 + CaO; CaO + H2O === Ca(OH)2; 2NH4Cl + Ca(OH)2 === 2NH3 + CaCl2 + 2H2O
Reply #52009-12-11
NaCl + NH3 + H2O + CO2 = NaHCO3↓ + NH4Cl 1# chen3jun
Reply #62009-12-11
The 6 main reactions: NaCl + NH3 + H2O + CO2 = NH4Cl + NaHCO3; 2NaHCO3 = Na2CO3 + H2O + CO2; CaCO3 = CO2 + CaO; Ca + H2O = Ca(OH)2; 2NH4Cl + Ca(OH)2 = 2NH3 + CaCl2 + 2H2O
Reply #72009-12-11
There are mainly 6 reactions: NaCl+NH3+H2O+CO2---NH4Cl+NaHCO3; 2NaHCO3---Na2CO3+H2O+CO2; CaCO3---CO2+CaO; CaO+H2O---Ca(OH)2; 2NH4Cl+Ca(OH)2---2NH3+CaCl2+2H2O
Reply #82009-12-11
There are mainly five reactions: NaCl + NH3 + H2O + CO2 —— NH4Cl + NaHCO3; 2NaHCO3 —— Na2CO3 + H2O + CO2; CaCO3 —— CO2 + H2O; CaO + H2O —— Ca(OH)2; 2NH4Cl + Ca(OH)2 —— 2NH3 + CaCl2 + 2H2O. 1# chen3jun
Reply #92009-12-11
There are mainly 5 reactions: NaCl+NH3+H2O+CO2→NH4Cl+NaHCO3; 2NaHCO3→Na2CO3+H2O+CO2; CaCO3→CO2+CaO; CaO+H2O→Ca(OH)2; 2NH4Cl+Ca(OH)2→2NH3+CaCl2+2H2O. 1# chen3jun
Reply #102009-12-11
The main reactions are: NaCl + NH3 + CO2 + H2 → NH4Cl + NaHCO3; 2NaHCO3 → (△) Na2CO3 + CO2 + H2; CaCO3 → (△) CO2 + CaO; CaO + H2 → Ca(OH)2; 2NH4Cl + Ca(OH)2 → CaCl2 + 2H2 + 2NH3
Reply #112009-12-11
1. What are the important reactions in the production of soda ash via the ammonia-alkali process? Write the chemical equation. Answer: NaCl + NH3 + H2O + CO2 → NH4Cl + NaHCO3. 2 NaHCO3 → Na2CO3 + H2O + CO2↑. CaCO3 → CO2 + CaO. CaO + H2O → Ca(OH)2. 2 NH4Cl + Ca(OH)2 → 2 NH3 + CaCl2 + 2H2O

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Translated at 2026-07-23 12:36:34

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