The use of sulfolane
1. Petrochemical field
Aromatic hydrocarbon extraction: The sulfolane extraction process (UOP certified) is used for aromatic hydrocarbons in gasoline, aviation kerosene, and special boiling point solvents. It includes liquid-liquid extraction and extractive distillation to recover high-purity aromatic hydrocarbons from reformate or cracked hydrogenated gasoline. Using sulfolane to achieve minimal consumption and capital investment, increase factory capacity, reduce usage consumption, and improve product purity.
Gas purification: The sulfolane process (Shell process) is used to purify acidic gas streams or remove compounds such as hydrogen sulfide, carbon disulfide, and acidic sulfur.
2. Fine chemical industry field
Pesticide: Sulfolane can be used in the synthesis of pesticides, insecticides, and fungicides, mainly because sulfolane, a polar solvent, has the advantages of non reactivity and high temperature resistance.
Dyes: Used for quickly decomposing dye colors on synthetic fibers that are not easily wetted by water, as a reinforcing agent.
Electronics: As a component of electrolytic solutions with lithium or similar light metals, sulfolane provides higher efficiency to batteries compared to previous electrolytic solutions.
Extraction distillation: Sulfolane can be used as a fluid to effectively separate compounds with similar boiling points.
Fractionation: In the initial liquid stage, extraction with sulfolane allows fatty acids to be broken down into saturated and unsaturated compounds.
Medicine: Sulfolane is a high-purity, multifunctional, polar, inert solvent used in comprehensive reactions of raw materials and intermediates or as a full process solvent. It can be miscible with water and aromatic hydrocarbons, and has excellent chemical properties and thermal stability. Sulfolane can be recycled.
Aggregation products: As a polymerization reaction solvent, sulfolane can be applied in certain systems, such as refining water-soluble polysaccharide polymers from glucose solutions using sulfolane and phosphoric acid catalysts.
Sulfolane, as a plasticizer, is beneficial for acetate fibers and lactams
Printing ink: Contains sulfolane spray printing ink, which has good storage stability, does not block the printer nozzle, and has good printing effect (not easily volatile).
Reaction solvent: Sulfolane is an efficient solvent tested in numerous reactions, especially in fields that require anhydrous and polar solvents.
Textile: Sulfolane is used as a spinning and casting solvent to improve the properties of synthetic fibers and fabrics.
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