[Soda ash knowledge] Daily question (68) 2009.12.10
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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 6 of "Technical Workers Job Training Question Bank - Soda Ash Production Operator". The electronic version of the book is available for download in the soda ash information sharing area. http://bbs.hcbbs.com/thread-13140-1-2.html ) Fill in the blanks 11. The process of carbonation of ammonia solution into sodium bicarbonate precipitation is carried out in ( ). 12. The process of absorbing ammonia from NaCl aqueous solution to produce ammonia salt water is completed in ( ). 13. The NaHCO3 obtained after carbonation of ammonia salt water is separated by filtration, sent to ( ), and calcined at a high temperature above ( ) ° C to obtain ( ). 14. In the calciner, the gas produced after the decomposition of NaHCO3 and NH4HCO3 is called ( ). After removing ammonia through ( ) and ( ), it is compressed and returned to the carbonation tower.
11. Carbonation tower 12. Ammonia absorption tower 13. Calcining furnace, 160, soda ash 14. Furnace gas, cooling, absorption
11.Carbonation tower； 12. Ammonia absorption tower ； 13. Calcining furnace, 160, soda ash ； 14. Furnace gas, cooling, absorption
11. The process of carbonation of ammonia water into sodium bicarbonate precipitation is carried out in (carbonation tower). 12． The process of absorbing ammonia from NaCl aqueous solution to produce ammonia salt water is completed in the (ammonia absorption tower). 13. The NaHCO3 obtained after carbonation of ammonia salt water is separated by filtration and then sent to a (calcining furnace) to be calcined at a high temperature above (160) ℃ to obtain (soda ash). 14. In the calciner, NaHCO3 and NH4HCO3 decompose to produce a gas called (furnace gas). After (absorption) and (cooling) removal of ammonia, it is compressed and returned to the carbonation tower.
11. Carbonation tower 12. Ammonia absorption tower 13. Calcining furnace, 160, soda ash 14. Furnace gas, cooling, absorption
11. Carbonation tower 12. Ammonia absorption tower 13. Calcining furnace 160 Soda ash 14. Furnace gas cooling and absorption
11 Carbonation tower 12 Ammonia absorption tower 13 Calcining furnace 160 Soda ash 14 Furnace gas cooling and absorption
11. Carbonation tower 12. Ammonia absorption tower 13. Calcining furnace, 160, soda ash 14. Furnace gas, cooling, absorption 1# chen3jun
11. The process of carbonation of ammonia water into sodium bicarbonate precipitation is carried out in (sulfation tower). 12． The process of absorbing ammonia from NaCl aqueous solution to produce ammonia salt water is completed in the (ammonia absorption tower). 13． The NaHCO3 obtained after carbonation of ammonia salt water is separated by filtration and then sent to a calcining furnace to be calcined at a high temperature above (160)°C to obtain (soda ash). 14. In the calciner, NaHCO3 and NH4HCO3 decompose to produce a gas called (furnace gas). After (cooling) and (absorption) ammonia removal, it is compressed and returned to the carbonation tower.
11. The process of carbonation of ammonia salt water into sodium bicarbonate precipitation is carried out in (carbonation tower). 12． The process of absorbing ammonia from NaCl aqueous solution to produce ammonia salt water is completed in the (ammonia absorption tower). 13． The NaHCO3 obtained after the carbonation of ammonia salt water is separated by filtration and then sent to a (calcining furnace) to be calcined at a high temperature above (160) ℃ to obtain (soda ash). 14. In the calciner, NaHCO3 and NH4HCO3 decompose to produce a gas called (furnace gas). After removing ammonia (cooling) and (absorption), it is compressed and returned to the carbonation tower.
11. Carbonation tower 12. Ammonia absorption tower 13. Calcining furnace 160 soda ash 14. Furnace gas cooling and absorption