Sodium lauryl ether sulfate manufacturers
Sodium laureth sulfate Sodium laureth sulfate, abbreviated: AES, is a white or light yellow gel paste or colorless or light yellow liquid. Commonly used in liquid washing, meal washing, shampoo, bath washing and other daily chemical industry, but also used in textile, paper, leather, machinery, oil mining and other industries. National standard: GB/T 13529-2003 Classification: High concentration products: Type 70. Low concentration product: Type 28. Appearance: Type 70: at 25℃, white or light yellow gel paste. Type 28: Colorless or light yellow liquid at 25 ° C. Odor: No abnormal odor. Properties: Soluble in water, with excellent decontamination, emulsification, foaming properties and hard water resistance, good biodegradability.
SLES 70 uses: Raw material of cosmetic, personal care and household products such as shampoo, bubble bath, detergent, showing foam stability and low rritation of skin. These series products are suitable for viscosity adjustment.
Sodium lauryl ether sulfate manufacturers production methodprocess
The preparation of this product includes five process steps: condensation of lauryl alcohol and ethylene oxide, sulfation of the condensation product, neutralization, pressure filtration, residue removal, filtrate distillation and dealcoholization. 452 kg of lauryl alcohol (hydroxyl value 275-320) was put into the reactor, and 5kg of potassium hydroxide was put into the mixing tank to prepare 50% aqueous solution and put into the reactor. Vacuum, control the vacuum degree at 13.3kPa, and gradually heat up to about 120℃ for dehydration. After the dehydration is completed, nitrogen is used to replace the air, and after the air is driven out, the temperature is raised to 140 ~ 150℃, and the stirring is started, and 324kg ethylene oxide is injected at 3 kPa. Then gradually reduce the kettle temperature to about 5℃. Sulfuric acid was added for acidification reaction, and neutralized with sodium hydroxide and alcohol solution for 1h. After neutralizing and pressing filtration to remove the filter residue, the filtrate dealcoholizes to get the finished product.
