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    AI Overview
    Full article: Temperature control of sulfonation reaction in ...
    A sulfation reactor, typically a multi-tube falling film reactor, is industrial equipment used to produce surfactants by reacting organic feedstocks (like fatty alcohols or LAB) with sulfur trioxide (
    SO3cap S cap O sub 3
    𝑆𝑂3
    ) gas. These reactors maintain high product quality through precise, uniform liquid distribution and efficient, high-heat-removal cooling, often utilizing a multi-tube design with 1 to 240+ tubes for capacities up to 10 t/h. 
    Key Features and Technology 
    • Falling Film Technology: The organic liquid flows down the inside of vertical tubes (typically 6m long, 25mm diameter) as a thin film, while
      SO3cap S cap O sub 3
      𝑆𝑂3
       gas travels concurrently, allowing for rapid reaction and efficient heat removal.
    • Capacity and Scale: Modern plants, such as those from WEIXIAN, use multi-tube reactors that can produce LABSA, SLES, and AOS, with capacities ranging from 1 to 240 tubes.
    • Temperature Control: Because the reaction is highly exothermic, reactors utilize water cooling in the shell to manage heat.
    • Types: Popular types include the Annular Falling Film Reactor (AFFR) and the Turbo-Tube Reactor for high-viscosity materials. 
    Main Applications 
    • Surfactant Production: Producing Linear Alkyl Benzene Sulfonic Acid (LABSA), Sodium Lauryl Ether Sulfate (SLES), and Alpha Olefin Sulfonate (AOS) for detergents.
    • Industrial Processes: Manufacturing lubricants, pesticides, and other specialized chemical products. 
    Key Suppliers and Systems 
    • Chemithon: Offers sulfuric acid sulfonation systems and falling film reactors for the surfactant industry.
    • WEIXIAN: Specializes in multi-tube falling film sulfonators with high capacity, achieving up to 7.5t/h per unit.
    • Reactor Resources: Specializes in catalyst sulfiding services and sulfur chemicals. 
    Other Types 
    • Aquarium Sulfation: A separate type of device used to reduce nitrates in closed aquarium systems using sulfur beads. 
    • Chemithon Detergents
      Plants can be configured to produce single products such as Linear Alkyl Benzene Sulfonic Acid (LAS/LABSA) or Methyl Ester Sulfona...
      Chemithon Enterprises
    • Sulfonation/Sulfation Processing Technology for Anionic ...
      Mar 23, 2012 — Sulfonation is the term that identifies an electrophilic chemical reaction where a sulfonic group SO3H is incorporated into a mole...
      Enviro Wiki
    • Customized Sulphonation/Sulfonation Reactor, Sulphonation ...
      Other Technical advantages of our sulfonator 6.1 Extended operation period: LABSA continuous production period reaches 40+ days; 6...
      4:05
      WEIXIAN (Nanjing) Science Technology co., ltd·WEIXIAN NANJING SCIENCE TECHNOLOGY CO.,LTD
    Show all
    • Chemithon Detergents
      Plants can be configured to produce single products such as Linear Alkyl Benzene Sulfonic Acid (LAS/LABSA) or Methyl Ester Sulfona...
      Chemithon Enterprises
    • Sulfonation/Sulfation Processing Technology for Anionic ...
      Mar 23, 2012 — Sulfonation is the term that identifies an electrophilic chemical reaction where a sulfonic group SO3H is incorporated into a mole...
      Enviro Wiki
    • Customized Sulphonation/Sulfonation Reactor, Sulphonation ...
      Other Technical advantages of our sulfonator 6.1 Extended operation period: LABSA continuous production period reaches 40+ days; 6...
      4:05
      WEIXIAN (Nanjing) Science Technology co., ltd·WEIXIAN NANJING SCIENCE TECHNOLOGY CO.,LTD
    • Chemithon Detergents
      SULFONATION/SULFATION SYSTEMS. Overview. The largest Chemithon division emerged from the company's invention of the continuous ole...
      Chemithon Enterprises
    • Falling film reactor modelling for sulfonation reactions
      Dec 1, 2019 — Abstract. Falling film reactors represent the actual technology to run sulfonation reaction at pilot and industrial scale. The rea...
      ScienceDirect.com
    • Sulfonation Technology for Anionic Surfactant Manufacture
      The basic principle of a film reactor is that a stream of gaseous sulfur trioxide, diluted with air, is passed through a vertical ...
      ACS Publications
    • Intro to Surfactant Sulfation and Sulfonation
      Jul 9, 2025 — then that is a sulfonate. if the attachment is via one of the oxygen atoms on the SO3 an ether linkage. then that makes it a sulfa...
      1m
      YouTube·Neil Burns
    • WEIXIAN Sulfonator Introduction | njweixian.com
      Jun 26, 2024 — Sulphonation Reactor: Sulfonator is the core equipment of a sulphonation plant, WEIXIAN Reactor adopts multi-tube falling film typ...
      WEIXIAN (Nanjing) Science Technology co., ltd
    • Home - Reactor Resources Sulfiding Services
      Reactor Resources (RxR) is a supplier of sulfur chemicals and sulfiding services for a variety of applications. RxR was founded in...
      www.reactor-resources.com
    • Sulfur Reactor - Pacific Sun EU
      The Pacific Sun Sulfur Reactor is a device that reduces nitrate in closed aquarium systems. It uses sulfur beads to convert nitrat...
      Pacific Sun EU
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    Web results

    Sulphonation/Sulfonation Reactor


    WEIXIAN (Nanjing) Science Technology co., ltd
    https://www.njweixian.com › sulphonationsulfonation-re...
    WEIXIAN (Nanjing) Science Technology co., ltd
    https://www.njweixian.com › sulphonationsulfonation-re...
    WEIXIAN sulfonator adopts multi-tube falling film reactor. Capacity range is from 1-tube to 240-tube (10t/h). Since 1995, WEIXIAN has supplied hundreds of ...Read more

    Sulfonation and Sulfation Processes


    Chemithon Enterprises
    https://www.chemithon.com › Technical_papers
    Chemithon Enterprises
    https://www.chemithon.com › Technical_papers
    PDF
    The sulfonator is the heart of a sulfonation plant. Sulfonic acid forms in the sulfonator when an SO3-in-air mixture is injected into the reactor simultaneously ...Read more
    36 pages
    Videos
    Intro to Surfactant Sulfation and Sulfonation
    YouTube · Neil Burns
    Jul 9, 2025
    YouTube · Neil Burns
    4:42
    Sulfonates attach via sulfur, sulfates via oxygen. Both are anionic surfactants, over half the global market.
    Sulphonation Process: Unit 03 Sulphonation & Sulphation
    YouTube · WEIXIAN NANJING SCIENCE TECHNOLOGY CO.,LTD
    Jan 17, 2024
    YouTube · WEIXIAN NANJING SCIENCE TECHNOLOGY CO.,LTD
    3:16
    SO3 gas reacts with organic materials like linear alkyl Benzene & dodosil Benzene in a multi-tube falling film reactor.
    WEIXIAN NANJING SCIENCE TECHNOLOGY CO.,LTD
    YouTube·
    Jan 18, 2024

    Sulphonation Process: Unit 03 Sulphonation & Sulphation

    YouTube·WEIXIAN NANJING SCIENCE TECHNOLOGY CO.,LTD·Jan 18, 2024
    YouTube
    Weixian's Sulphonation Reactor
    YouTube · PLATTECH _Harry
    Nov 19, 2022
    YouTube · PLATTECH _Harry
    2:12
    View all

    Web results

    Sulfonation Technology for Anionic Surfactant Manufacture


    ACS Publications
    https://pubs.acs.org › doi
    ACS Publications
    https://pubs.acs.org › doi
    This paper presents an overview of reactor technology and reaction chemistry for surfactant manufacture via sulfonation with sulfur trioxide.

    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 — Sulfonation reactions can be carried out in different configurations, either liquid-liquid contact, or gas-liquid contact reactors, and a ...Read more
    28 pages

    Sulfonation reactor and use method thereof


    Google Patents
    https://patents.google.com › patent
    Google Patents
    https://patents.google.com › patent
    The present invention discloses a sulfonation reactor and a use method thereof, and belongs to the field of sulfonation reaction equipment.Read more
    Missing: Sulfation ‎| Show results with: Sulfation

    Falling film reactor modelling for sulfonation reactions


    ScienceDirect.com
    https://www.sciencedirect.com › article › abs › pii
    ScienceDirect.com
    https://www.sciencedirect.com › article › abs › pii
    by V Russo · 2019 · Cited by 27 — Falling film reactors represent the actual technology to run sulfonation reaction at pilot and industrial scale.Read more

    Chemithon Detergents


    Chemithon Enterprises
    https://www.chemithon.com › sulfonation
    Chemithon Enterprises
    https://www.chemithon.com › sulfonation
    The versatile Impact Jet Reactor is ideal for producing high molecular weight anionic surfactants used in the lubricating oil additives business sector. Our ...Read more
    People also ask
    What is the process of sulfation?
    Sulfation - an overview | ScienceDirect Topics
    4.2.

    Sulfation refers to the esterification of hydroxyl groups in the polysaccharides with sulfuric acid. Sulfation, a widely used modification, is reported to increase water solubility and improve the biological activity of polysaccharides (Andrew & Jayaraman, 2021; Wang et al., 2010; Yang, Jia, et al., 2012).

    Sulfation - an overview | ScienceDirect Topics


    ScienceDirect.com
    https://www.sciencedirect.com › topics › sulfation
    ScienceDirect.com
    https://www.sciencedirect.com › topics › sulfation
    What is sulfonation used for?
    Sulfonation is among the frequently used surface modification methods to endow new surface properties on polymer fibers. Direct sulfonation is the simplest chemical modification via incorporation of sulfonate functional groups onto fibers' surfaces at ordinary conditions.

    The correlation of sulfonation reaction kinetics with the degree of ... - PMC


    PMC - NIH
    https://pmc.ncbi.nlm.nih.gov › articles › PMC9844126
    PMC - NIH
    https://pmc.ncbi.nlm.nih.gov › articles › PMC9844126
    What is the difference between sulfation and sulfonation?
    An error has occurred. Please try again later.
    What is sulfation reaction?
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    Ask anything in AI Mode

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    Web results

    Sulphonation Plants


    Technithon
    https://www.technithon.com › sulphonation-plants
    Technithon
    https://www.technithon.com › sulphonation-plants
    Technithon offers solutions and expertise to deliver: Continuous Air+ SO3 sulfonation plants with falling film reactors for both water and oil soluble ...Read more

    Linear Alkylbenzenes Sulfonation: Design of Film Reactor and ...


    AOCS Publications
    https://aocs.onlinelibrary.wiley.com › doi › abs › jsde
    AOCS Publications
    https://aocs.onlinelibrary.wiley.com › doi › abs › jsde
    by E Ivanchina · 2020 · Cited by 10 — The current method for industrial production of ABSA includes sulfonation of linear alkylbenzene (LAB) with sulfur trioxide in tubular falling film reactors.Read more
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