Patent · US Expired

Insoluble adsorber resin suitable for treating drinking water and sewage

US4025705A · kind A · utility

4Cited by
3References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 20, 1975
Grant dateMay 24, 1977
Priority date
Expiry dateOct 20, 1995

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S210/916
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

The invention relates to a process for removing oleophilic odor- and tasteproducing substances from water by treating the water with an insoluble, macroporous adsorber resin comprising a matrix based on a crosslinked organic polymer containing aromatic nuclei, the polymer containing chloromethyl groups as substituents; some of the chlorine atoms in the chlormethyl groups can be reacted with ammonia or amines; furthermore, the invention relates to the adsorber resins to be used in the claimed process.

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