Kinetics of sulfation of chalcopyrite with steam and oxygen in the presence of ferric oxide

1996 ◽  
Vol 27 (3) ◽  
pp. 465-474 ◽  
Author(s):  
Sanjay Prasad ◽  
B. D. Pandey ◽  
S. K. Palit
Keyword(s):  
Ferric Oxide ◽  
Kinetics Of

Sorption kinetics of strontium in porous hydrous ferric oxide aggregates

2005 ◽  
Vol 283 (1) ◽  
pp. 18-28 ◽  
Author(s):  
Wendy van Beinum ◽  
Annette Hofmann ◽  
Johannes C.L. Meeussen ◽  
Ruben Kretzschmar
Keyword(s):  
Ferric Oxide ◽  
Sorption Kinetics ◽  
Hydrous Ferric Oxide ◽  
Kinetics Of

scholarly journals Mechanism and kinetics of magnetite oxidation under hydrothermal conditions

RSC Advances ◽  
2019 ◽  
Vol 9 (58) ◽  
pp. 33633-33642 ◽  
Author(s):  
Zimin Li ◽  
Corinne Chanéac ◽  
Gilles Berger ◽  
Sophie Delaunay ◽  
Anaïs Graff ◽  
...  
Keyword(s):  
Ferric Oxide ◽  
Oxidation Kinetics ◽  
Oxide Phase ◽  
Hydrothermal Conditions ◽  
Mechanism And Kinetics ◽  
Kinetics Of

Oxidation kinetics of magnetite into hematite depends on temperature and morphology of the ferric oxide phase.

scholarly journals Photolysis of dicamba (3,6-dichloro-2-methoxybenzoic acid) in aqueous solution and dispersed on solid supports

2000 ◽  
Vol 2 (2) ◽  
pp. 81-86 ◽  
Author(s):  
Jean-Pierre Aguer ◽  
Frédéric Blachère ◽  
Pierre Boule ◽  
Sandrine Garaudee ◽  
Chantal Guillard
Keyword(s):  
Aqueous Solution ◽  
Ferric Oxide ◽  
Solid Phase ◽  
Uv Light ◽  
Solid Supports ◽  
Kinetic Reaction ◽  
Unexpected Product ◽  
Kinetics Of ◽  
Synthetic Clay ◽  
Methoxybenzoic Acid

Dicamba (3,6-dichloro-2-methoxybenzoic acid) was exposed to UV light in aqueous solution. It was also irradiated in the solid phase without support or adsorbed on laponite (a synthetic clay) and ferric oxide.Two main photoproducts (1) and (2) were identified in irradiated aqueous solutions. Both involve the substitution of chlorine by OH. The unexpected product (2) is formed through a kinetic reaction of primary product; it results from an oxidation and it is not formed in the absence of oxygen.A huge number of intermediate products were simultaneously formed when dicamba is irradiated in the solid phase in presence of laponite. They correspond to methylation, decarboxylation, chlorination, dechlorination, and hydroxylation reactions. The latter is probably due to the presence of water in clays, whereas methylation, chlorination and decarboxylation have been attributed to the cage effect and to an energy transfer process. Without support or with ferric oxide, no decarboxylation occurs. The nature of the inorganic support also modify the kinetics of dicamba photolysis.

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