Patent · US Expired

Microporous crystals and synthesis schemes

US6949238B2 · kind B2 · utility

0Cited by
4References
13Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 5, 2003
Grant dateSep 27, 2005
Priority date
Expiry dateApr 26, 2023

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S423/30
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

Novel zeolites are produced by combining a polar solute, a silicon or phosphorous source, and a structure directing agent. Surfactants and a hydrophobic solvent are added to the previously mixed three species and shaken to disperse the surfactants. The reverse microemulsion is stirred overnight, at about room temperature and then iced for five to ten minutes. A metal source is added vigorously shaken for about two minutes. The mixture is then aged for about two hours at about room temperature. A mineralizer is added and the resultant mixture aged for about two hours at about room temperature. The mixture is heated to about 180° C., for a suitable time period. The final novel product is then isolated.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.