Theoretical energy consideration of the gas-phase polymerization of sodium acrylate

Simple item page
dc.contributor.authorSanderson R.D.
dc.contributor.authorRotimi Sadiku E.
dc.date.accessioned2011-05-15T15:59:27Z
dc.date.available2011-05-15T15:59:27Z
dc.date.issued2003
dc.description.abstractThe kinetics of the spray polymerization of sodium acrylate were investigated. The technique in which the heat of polymerization was used for solvent removal showed better energy efficiency than the solution or emulsion polymerization methods for preparing sodium polyacrylate. The monomer solution was injected into the nozzle of the spray machine via a venturi effect to siphon up the solution. Two siphon tubes feeding through two control valves into a mixing chamber before the spray operation resulted in separate feeds of a sodium hydroxide solution and a mixture of acrylic acid, water, and a catalyst. These two feeds generated the heat of neutralization of sodium acrylate. This heat raised the temperature of the monomer solution to the reaction temperature, thereby initiating the exothermic polymerization reaction. Theoretical calculations of these energy sources were compared with the energy required to give a dry product. The results revealed that the energy cost for spray polymerization was 4783.5 kJ kg-1, whereas the energy cost was 7830.4 kJ kg-1 for the conventional system. © 2003 Wiley Periodicals, Inc.
dc.description.versionArticle
dc.identifier.citationJournal of Applied Polymer Science
dc.identifier.citation88
dc.identifier.citation4
dc.identifier.issn218995
dc.identifier.other10.1002/app.11732
dc.identifier.urihttp://hdl.handle.net/10019.1/11184
dc.subjectCatalysts
dc.subjectCosts
dc.subjectEmulsions
dc.subjectEnergy efficiency
dc.subjectMonomers
dc.subjectOrganic acids
dc.subjectSodium compounds
dc.subjectSpray polymerization
dc.subjectPolymerization
dc.subjectcost
dc.subjectenergy consumption
dc.subjectpolymerization
dc.subjecttheoretical analysis
dc.titleTheoretical energy consideration of the gas-phase polymerization of sodium acrylate
dc.typeArticle
Files
Collections
Stellenbosch University - Scopus Publications