Preparation method and application of phosphate salt

• Main Authors: CHEN SHENGHUAN, ZHANG YONG, XIE ZHIKAI, LIU ZHENHUA
• Format: Patent
• Language: Chinese; English
• Published: 30.06.2023
• Subjects: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM; ADHESIVES; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; DYES; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC CHEMISTRY; PAINTS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; POLISHES; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention relates to a preparation method and application of phosphate salt, and belongs to the technical field of surfactants. The MIL-101 series metal-organic framework material containing more Lewis acid sites and a porous structure is used as a catalyst, and meanwhile, phosphorus pentoxide is pre-dispersed in high-content phosphate ester to form paste or an emulsion with certain flowability; according to the preparation method disclosed by the invention, the selectivity of esterification reaction on phosphomonoester can be improved, the content of monoester in phosphate ester salt can be increased, the color of a product can be relatively light, and the problems of byproducts caused by pre-dispersion by adopting a traditional organic solvent and darkening of the color of the product caused by local carbonization are solved; the application of the product in the preparation of the surfactant is facilitated. Besides, the MIL-101 series metal-organic framework material is a solid catalyst, can be recycle