如何用真空蒸发结晶法制取无水硫酸钠的方法.txt

, ( , 030051) , . , 1 . 1 1 2 . , d tb ( - ) 豸 . . 1 ( 1 ) , . 1 , 3 a , b , c , b 32. 4 . t 32. 4 , 1 , . f ig. 1t he p ha se equ ilib rium of n a 2so 4 2h 2o . 2 d tb , , , : 2000208231 : (1973- ) , , . : . : d tb 1 . . . : d tb ; ; ; : o 653: a 58 2001 1 , . . d tb : , , , , , , , , , 彫, , . . , , 1 , , , . , . , , , d tb . 3鷽 2 . ( 1) , n a 2 so 4 . . , , ph 9, , , ph 7, . ( 2 ) , . , , , 2 h . , , . ( 3 ) 32. 4 , . 10 , . , 0. 1% . 10 , , 50 , , . , . ( 4) , . 140 , 1 h, . 1- ; 2- ; 3- ; 4- ; 5- ; 6- ; 7- ; 8- ; 9- ; 10- 2 f ig. 2t he equ ipm en t fo r crysta lliza tion of n a 2 so 4 4鷽 : . , , - . 1 . ( 75 ) ( ) 1- . tab 1 t he tab le of facto rs and levels 59 1 2 a b c d e f 60 70 100 r m in 80 r m in 1. 5 m o l l 2. 0 m o l l 6h 8h 0. 06 m pa 0. 04 m pa 2 . 2 , , : e - a (d ) - c - b ( f ). a d , b f , , : a 2b 1c 2d 2 e 2 f 2. 2 . tab 2t he tab le of o rthogona l exp eri en t m 1 2 3 4 5 6 7 8 1 a 2 b 3 c 4 d 5 e 6 mm f 1 1 1 1 2 2 2 2 1. 35 1. 85 r 0. 50 1 1 2 2 1 1 2 2 1. 65 1. 55 r 0. 10 1 1 2 2 2 2 1 1 1. 40 1. 80 r 0. 40 1 2 1 2 1 2 1 2 1. 35 1. 85 r 0. 50 1 2 1 2 2 1 2 1 1. 30 1. 90 r 0. 6 1 2 2 1 2 1 1 2 1. 55 1. 65 r 0. 10 0. 10 0. 50 0. 30 0. 45 0. 50 0. 55 0. 45 0. 35 (gb 6009- 85) 3 . 3 . tab 3t he op ti a l resu lt of exp eri en ta l p roduct m m (n a 2 so 4 ) 100 98. 2- 98. 5 涨 98. 0 0. 30 0. 50 100 100 0. 03- 0. 07 0. 35- 0. 63 涨 0. 1 0. 70 73 ( ) 100 0. 07- 0. 25 100 0. 1- 0. 4 5 5. 1 , , , , , ; , , , . 70 3 . 5. 2 , , , 60 2001 1 , . 5. 3 , , . . , 0. 04 m pa . 5. 4 , , , 轰 . , 轰, , , . , , 80 r m in . 5. 5 , , , ; , . , , . 5. 6 , , , 4 . , , . 6 ( 1) : 70 , . 0. 04 m pa, 80 r m in, , 8 h, 1. 5 m o l l. ( 2) d tb , . : 1 . . m . : , 1981. 286, 297. 2 e b. m . : , 1990. 255. 3 , . j . , 1997, 17 ( 2) : 106. 4 , . m . : , 1985. 181. using vacuum evapora tion crysta l iza tion to get anhydrous sod ium sulfa te (d ep t. of chem ica l engineering, n o rth ch ina in stitu te of t echno logy, t a iyuan 030051, ch ina ) abstract: a i t he techno log ica l cond it ion requ ired to get anhyd rou s sod ium su lfa te from m the indu st ria l coa rse m irab ilite is d iscu ssed. m ethodsv acuum evapo ra t ion crysta llza t ion is u sed. resultst he influence on g ranu la rity and qua lity of the p roduct under d ifferen t cond i2 t iona l standa rd. d rou s sod ium su lfa te t ion s is stud ied. conclus ion t he p roduct acco rd s w ith the second cla ss criterion of the n a 2 key word: d tb crysta lliza to r; vacuum evapo ra t ion crysta lliza to r; sod ium su lfa te; anhy 2 l i shu 2 ing, l i you 2zh i p u 1lzhly1010 pdfwap鲻txt 2001 22 1 ( 75 ) jo urnal o f no rth ch ina inst itute o f technolo gy . v o l 22n o. 12001 ( sum n o. 75) : 100625431 ( 2001) 0120057204 , ( , 030051) , . , 1 . 1 1 2 . , d tb ( - ) 豸 . . 1 ( 1 ) , . 1 , 3 a , b , c , b 32. 4 . t 32. 4 , 1 , . f ig. 1t he p ha se equ ilib rium of n a 2so 4 2h 2o . 2 d tb , , , : 2000208231 : (1973- ) , , . : . : d tb 1 . . . : d tb ; ; ; : o 653: f 60 70 100 r m in 80 r m in 1. 5 m o l l 2. 0 m o l l 6h 8h 0. 06 m pa 0. 04 m pa 2 . 2 , , : e - a (d ) - c - b ( f ). a d , b f , , : a 2b 1c 2d 2 e 2 f 2. 2 . tab 2t he tab le of o rthogona l exp eri en t m 1 2 3 4 5 6 7 8 1 a 2 b 3 c 4 d 5 e 6 mm f 1 1 1 1 2 2 2 2 1. 35 1. 85 r 0. 50 1 1 2 2 1 1 2 2 1. 65 1. 55 r 0. 10 1 1 2 2 2 2 1 1 1. 40 1. 80 r 0. 40 1 2 1 2 1 2 1 2 1. 35 1. 85 r 0. 50 1 2 1 2 2 1 2 1 1. 30 1. 90 r 0. 6 1 2 2 1 2 1 1 2 1. 55 1. 65 r 0. 10 0. 10 0. 50 0. 30 0. 45 0. 50 0. 55 0. 45 0. 35 (gb 6009- 85) 3 . 3 . tab 3t he op ti a l resu lt of exp eri en ta l p roduct m m (n a 2 so 4 ) 100 98. 2- 98. 5 涨 98. 0 0. 30 0. 50 100 100 0. 03- 0. 07 0. 35- 0. 63 涨 0. 1 0. 70 73 ( ) 100 0. 07- 0. 25 100 0. 1- 0. 4 5 5. 1 , , , , , ; , , , . 70 3 . 5. 2 , , , 60 2