potassium lauryl mono (or di) phosphate - Names and Identifiers
potassium lauryl mono (or di) phosphate - Physico-chemical Properties
| Physical and Chemical Properties | Chemical properties This product is a white uniform paste at room temperature. Easily soluble in water and general organic solvents. Can ionize oily charged anions. Easy to be decomposed by acid and alkali, not resistant to hard water. It has certain antistatic, emulsifying, smooth, soft and wetting properties. |
| Use | Use for the preparation of polyester short fiber drawing oil agent. It is also widely used in softeners, antistatic agents, etc. |
potassium lauryl mono (or di) phosphate - Production method
P> put lauric acid alcohol into the reaction kettle, add 0.2% ~ 0.3% phosphorous acid under stirring, slowly add phosphorus oxychloride [lauryl alcohol: phosphorus oxychloride = 3: 2 (mol)], and control the temperature at 34~36 ℃ during the dropping process. After dropping, the temperature is gradually increased to 70~75 ℃ for 4 h. After the reaction is completed, nitrogen is used to remove the by-product HCl, and 5% water is added to make the chlorophosphate ester water become phosphate ester.
The phosphate ester is transferred to a neutralization kettle and neutralized with aqueous solution until the pH value is 6.5~7.0. Heat to about 100 ℃, pass nitrogen, vacuum dehydrate until the water content is less than 0.5%. Add 1% hydrogen peroxide and 1% diatoms and filter while hot. discharge.
Add 20% hot water to the dehydrated phosphate and let it stand at 80 ℃ for 2~3 hours. Take the upper product. The lower dilute acid is released. Finally, the finished product is neutralized with 50% NaOH aqueous solution to a pH value of about 8.
Last Update：2024-04-10 22:29:15