[Soda ash knowledge] Daily question (7) 2009.10.10
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Please hide the reply. If you do not hide it, you will not be graded in principle. Specific hiding methods: http://bbs.hcbbs.com/viewthread.php?tid=492556&highlight=%D2%FE%B2%D8 Edited posts are not graded. (The title of this issue is taken from page 60 of "Technical Worker Job Training Question Bank - Soda Ash Production Operator". The electronic version of the book can be downloaded in the Soda Ash Information Sharing Area. http://bbs.hcbbs.com/thread-13140-1-2.html ) True or False Question 1. Process I refers to the process of producing Na2CO3. ( ) 2. The effective conversion rate of the raw materials of the joint alkali plant is higher than that of ammonia alkali. ( ) 3. In a broad sense, joint alkali production simply refers to the combination of soda ash production and ammonium chloride production. ( ) 4. Most of the Ca and Mg impurities in joint alkali production are removed in the AII clarification barrel. ( ) 5. The greater the washing water volume, the greater the chlorine difference. ( ) 6. The amount of water added to the alkali car is equal to the theoretical water amount to maintain the system material-liquid balance. ( ) 7. Because the carbon dioxide gas used to synthesize ammonia contains hydrogen sulfide, sodium sulfide does not need to be added during joint alkali production. ( )
1. Process I refers to the process of producing Na2CO3. (True) 2. The effective conversion rate of the raw materials of the joint alkali plant is higher than that of ammonia-alkali. (Wrong) 3. In the broad sense, joint alkali production simply refers to the combination of soda ash production and ammonium chloride production. (Correct) 4. Most of the Ca and Mg impurities in joint alkali production are removed in the AII clarification barrel. (Wrong) 5. The greater the washing water volume, the greater the chlorine difference. (True) 6. If the amount of water added to the alkali car is equal to the theoretical water amount, the system's material-liquid balance can be maintained. (Wrong) 7. Because the carbon dioxide gas used to synthesize ammonia contains hydrogen sulfide, sodium sulfide does not need to be added during joint alkali production. ( wrong)
1, √ 2, × 3, √ 4, × 5, √ 6, × 7,×
1. Process I refers to the process of producing Na2CO3. (T) 2. The effective conversion rate of the raw materials of the joint alkali plant is higher than that of ammonia alkali. (F) 3. In a broad sense, joint alkali production simply refers to the combination of soda ash production and ammonium chloride production. (T) 4. Most of the Ca and Mg impurities in joint alkali production are removed in the AII clarification barrel. (F) 5. The greater the washing water volume, the greater the chlorine difference. (T) 6. The amount of water added at the alkali car is equal to the theoretical water amount to maintain the system material-liquid balance. (F) 7. Because the carbon dioxide gas used to synthesize ammonia contains hydrogen sulfide, sodium sulfide does not need to be added during joint alkali production. (F)
F,T,F,F,TF,F,
Reference answers 1. Process I refers to the process of producing Na2CO3. (True) 2. The effective conversion rate of the raw materials of the joint alkali plant is higher than that of ammonia and alkali. (Wrong) 3. In the broad sense, joint alkali production simply refers to the combination of soda ash production and ammonium chloride production. (Correct) 4. Most of the Ca and Mg impurities in joint alkali production are removed in the AII clarification barrel. (Wrong) 5. The greater the washing water volume, the greater the chlorine difference. (Correct) 6. The amount of water added to the alkali car is equal to the theoretical water amount to maintain the system's material-liquid balance. (False) 7. Because the carbon dioxide gas used to synthesize ammonia contains hydrogen sulfide, sodium sulfide does not need to be added during joint alkali production. ( wrong)
1. True 2. False 3. True 4 False 5. True 6. False 7. False