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AOS Production Process
- Sulfonation: Liquid alpha olefins are reacted with vaporized (diluted with air) in a multi-tube falling film reactor,, which (often requires intense cooling with chilling water at approximately 15°C).
- Aging: The raw sulfonic acid is held to complete the reaction.
- Hydrolysis and Neutralization: The aged acid is mixed with sodium hydroxide () and water to neutralize the acid and hydrolyze the resulting sulfolactones (sultones) into the desired AOS. This step typically involves heating to convert the sultones.
- Bleaching: The product is bleached (e.g., using hydrogen peroxide) to improve color.
Key Plant Features for AOS
- Temperature Control: Precise cooling during sulphonation is crucial to manage the high viscosity and potential discoloration.
- Hydrolysis System:
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Web results
sulphonation plant AOS Alpha Olefins Hydrolysis
WEIXIAN (Nanjing) Science Technology co., ltd
https://www.njweixian.com › sulphonation-plant-aos-alp...
WEIXIAN (Nanjing) Science Technology co., ltd
https://www.njweixian.com › sulphonation-plant-aos-alp...
The Sulfolactone hydrolysis system consists of a boosting pump, three heat exchangers, and a hydrolyzer. After aging, α- Olefin sulfonate is pumped to the ...Read more
Normal Alpha Olefins FAQ
Chevron Phillips Chemical
https://www.cpchem.com › ... › Normal Alpha Olefins
Chevron Phillips Chemical
https://www.cpchem.com › ... › Normal Alpha Olefins
Alkenyl sulfonic acid hydrolysis in refluxing alkaline isopropyl alcohol for six to eight hours eliminates the delta-sultone. Insoluble in isopropanol, the AOS ...Read more
Sulphonation
Phoenix Equipment
https://www.phxequip.com › resource-detail › sulphonati...
Phoenix Equipment
https://www.phxequip.com › resource-detail › sulphonati...
AOS (sodium alpha olefin sulfonate). A supplementary treatment is involved in the production of Sodium Alpha Olefin Sulfonate (AOS), named “hydrolysis”, in ...Read more
Alpha Olefin Sulphonate (AOS) | The Biodegradable ...
STPP Group
https://stppgroup.com › Products › Detergent chemicals
STPP Group
https://stppgroup.com › Products › Detergent chemicals
Neutralization and hydrolysis are carried out in isopropanol instead of water in order to form Alpha olefin sulfonates in solid form. Alpha olefin sulfonate ...Read more
Unit 11 Alpha Olefins Hydrolysis
WEIXIAN (Nanjing) Science Technology co., ltd
https://www.njweixian.com › unit-11-alpha-olefins-hydr...
WEIXIAN (Nanjing) Science Technology co., ltd
https://www.njweixian.com › unit-11-alpha-olefins-hydr...
The Sulfolactone hydrolysis system consists of a boosting pump, three heat exchangers, and a hydrolyzer. After aging, α- Olefin sulfonate is pumped to the ...Read more
Environmental and Human Safety of Major Surfactants
The American Cleaning Institute
https://www.cleaninginstitute.org › research-pdfs
The American Cleaning Institute
https://www.cleaninginstitute.org › research-pdfs
PDF
Alpha olefin sulfonates (ADS) are efficient readily biodegradable cleaning agents that possess a high degree of chemical stability and have good water ...Read more
77 pages
Sulfonation Technology for Anionic Surfactant Manufacture
ACS Publications
https://pubs.acs.org › doi
ACS Publications
https://pubs.acs.org › doi
Therefore in AOS manufacture a high-temperature hydrolysis step is provided after neutralisation. The resulting AOS is predominantly a mixture of alk-2-ene ...Read more
Process for the production of commercial alpha olefin ...
Google Patents
https://patents.google.com › patent
Google Patents
https://patents.google.com › patent
Neutral sulfonate esters hydrolyze to yield alkali metal sulfonates and secondary alcohols, or, possibly, sometimes, olefins, depending on heating conditions.Read more
Sulfonation/Sulfation Processing Technology for Anionic ...
Enviro Wiki
http://www.enviro.wiki › images › 2012-Ortega-S...
Enviro Wiki
http://www.enviro.wiki › images › 2012-Ortega-S...
PDF
Mar 23, 2012 — 2.4 Alfa-olefins sulfonates (AOS). Alfa-olefins ... product of alfa-olefin sulfonation requires hydrolysis to remove the sultones, which are.Read more
28 pages
