The Effect of Surface Pretreatment with Polymaleic Acid, Phosphoric Acid, or Oxalic Acid on the Dissolution Kinetics of Calcium Carbonate in Aqueous Acid

2001 ◽  
Vol 242 (2) ◽  
pp. 378-385 ◽  
Author(s):  
Shelley J. Wilkins ◽  
Richard G. Compton ◽  
Heather A. Viles
Keyword(s):  
Calcium Carbonate ◽  
Oxalic Acid ◽  
Phosphoric Acid ◽  
Dissolution Kinetics ◽  
Surface Pretreatment ◽  
Aqueous Acid ◽  
Polymaleic Acid ◽  
Kinetics Of ◽  
Effect Of Surface

The Dissolution Kinetics of Tincal in Phosphoric Acid Solutions

2007 ◽  
Vol 5 (1) ◽  
Author(s):  
Yuksel Abali ◽  
Salih U Bayca ◽  
Ayse E Guler
Keyword(s):  
Particle Size ◽  
Phosphoric Acid ◽  
Dissolution Rate ◽  
Acid Concentration ◽  
Reaction Temperature ◽  
Dissolution Kinetics ◽  
Reaction Model ◽  
Acid Solutions ◽  
Liquid Ratio ◽  
Kinetics Of

In this study, the dissolution kinetics of tincal in phosphoric acid solutions was investigated. The effects of reaction temperature, acid concentration, solid to liquid ratio, particle size and stirring speed were determined in the experiments. The results showed that the dissolution rate increased with increasing acid concentration, reaction temperature, stirring speed and increased with decreasing particle size and solid to liquid ratio. The dissolution rate was found to be based on the first order pseudo homogenous reaction model. The activation energy of the tincal in phosphoric acid solution was determined as 42.28 kJ.mol-1.

Dissolution kinetics of calcium carbonate in equatorial Pacific sediments

1994 ◽  
Vol 8 (2) ◽  
pp. 219-235 ◽  
Author(s):  
William M. Berelson ◽  
Douglas E. Hammond ◽  
James McManus ◽  
Tammy E. Kilgore
Keyword(s):  
Calcium Carbonate ◽  
Dissolution Kinetics ◽  
Equatorial Pacific ◽  
Kinetics Of

Influence of oxalic acid on the dissolution kinetics of manganese oxide

2012 ◽  
Vol 2012 (11) ◽  
pp. 935-941 ◽  
Author(s):  
E. B. Godunov ◽  
I. V. Artamonova ◽  
I. G. Gorichev ◽  
Yu. A. Lainer
Keyword(s):  
Oxalic Acid ◽  
Manganese Oxide ◽  
Dissolution Kinetics ◽  
Kinetics Of

The dissolution of calcite at pH > 7: kinetics and mechanism

1990 ◽  
Vol 330 (1609) ◽  
pp. 47-70 ◽  
Keyword(s):  
Calcium Carbonate ◽  
Solubility Product ◽  
Dissolution Kinetics ◽  
Theoretical Modelling ◽  
Normal Rate ◽  
Bulk Solution ◽  
Rate Law ◽  
Rate Laws ◽  
Ph Conditions ◽  
Kinetics Of

A technique is described that allows an assessment of the various candidate rate laws that have been proposed to predict the dissolution kinetics of calcite under high pH conditions. A combination of theoretical modelling and experimentation allows us to choose the following rate law as that which best fits the observed data: rate ( mol c m − 2 s − 1 ) = k − k ′ [ C a 2 + ] s [ CO 3 2 − ] s ′ , where k ′ = k / K sp and K sp is the solubility product of calcium carbonate. The modelling developed differs from previous studies in that it deals in terms of surface concentrations of reactants, [ Ca 2 + ] s and [ CO 3 2 − ] , as opposed to those present in bulk solution.

An XPS study of the dissolution kinetics of chrysotile in 0.1 N oxalic acid at different temperatures

1977 ◽  
Vol 1 (4) ◽  
pp. 385-398 ◽  
Author(s):  
J. H. Thomassin ◽  
J. Goni ◽  
P. Baillif ◽  
J. C. Touray ◽  
M. C. Jaurand
Keyword(s):  
Oxalic Acid ◽  
Dissolution Kinetics ◽  
Different Temperatures ◽  
Xps Study ◽  
Kinetics Of
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