Influence of impurities on stainless steels corrosion in wet process phosphoric acid

1990 ◽  
Vol 26 (1-3) ◽  
pp. 281-289 ◽  
Author(s):  
P. Barraco ◽  
G. Chiaro ◽  
A. Barbera
Author(s):  
K. Chandra ◽  
A. P. Singh ◽  
Amrita Mahanti ◽  
Niraj Kumar ◽  
Vicky Gautam ◽  
...  

1954 ◽  
Vol 26 (6) ◽  
pp. 1060-1061 ◽  
Author(s):  
J. A. Brabson ◽  
W. D. Wilhide

2013 ◽  
Vol 20 (0) ◽  
pp. 183-195 ◽  
Author(s):  
Xuhong JIA ◽  
Jun LI ◽  
Yang JIN ◽  
Jianhong LUO ◽  
Baoming WANG ◽  
...  

2018 ◽  
Vol 57 (20) ◽  
pp. 6968-6979
Author(s):  
Hang Ma ◽  
Xiao Feng ◽  
Chun Deng

2013 ◽  
Vol 781-784 ◽  
pp. 560-566
Author(s):  
Jie Xu ◽  
De Jun Fei ◽  
Jian Xun Wu ◽  
Ya Gu Dang

A non-ionic copolymer PAMA which has two functions of flocculation and surface activity was synthesized in aqueous solution. The copolymer was also characterized by means of infrared spectroscopic and unclear magnetic. The application performance of PAMA were studied, and the results show that the filtration rate of the phosphoric acid can be increased by about 3.8 times,the water content of the filter cake can be reduced by about 9.8%. Meanwhile, PAMA may increase the cake porosity by 25.82%,increase the mean void area about 7 times ,increase the surface contact angle of phophogypsum by 9.8°and decrease the surface tension by 7.4 mN·m-1 according to the SEM photos and hydrophobic experiment. All this confirms that PAMA is useful for vacuum filter system of wet process phosphoric acid.


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