Sökning: "sodium carbonate"
Visar resultat 1 - 5 av 28 avhandlingar innehållade orden sodium carbonate.
1. Sodium Salt Scaling in Black Liquor Evaporators
Sammanfattning : Sodium salt scaling has long been recognized as a problem in the recovery cycle of kraft pulp mills, especially in black liquor evaporators. In the black liquor evaporation, as the black liquor becomes more concentrated, the sodium salts, particularly sodium carbonate and sodium sulfate, will saturate and precipitate from the solution. LÄS MER
2. The Formation and Dissolution of Sodium Salt Scales in Black Liquor Evaporators
Sammanfattning : .... LÄS MER
3. Model for activity coefficients and solubilities of Na2CO3 and Na2SO4 in high-temperature solutions
Sammanfattning : Scaling of sodium sulfate and sodium carbonate double salts has long been recognized as a problem in the black liquor evaporation process. These salts are abundant in black liquor and often tend to precipitate on heat transfer areas, thereby significantly decreasing the heat transfer efficiency. LÄS MER
4. Carbonate Ions and Gastric Cancer
Sammanfattning : Nearly one million new cases of gastric cancer are diagnosed annually throughout the world. Even though the incidence has fallen dramatically in recent decades, this disease is still the second leading cause of cancer death in a global perspective. LÄS MER
5. Black Liquor Scaling Propensity - Experimental Investigation in a Pilot Evaporator
Sammanfattning : Scaling in the recovery cycle of kraft pulp mills has long been recognised as a problem, especially in black liquor evaporators. Most problems are connected with the precipitation of sodium salts. LÄS MER