Patent · US Expired

Mixed bed deionizer

US4329225A · kind A · utility

12Cited by
7References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 29, 1980
Grant dateMay 11, 1982
Priority date
Expiry dateDec 29, 2000

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB01J49/09
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

A mixed bed deionizer unit which provides in situ regeneration through the use of two compact multi-valve assemblies and an intermediate manifold which are automatically controlled to supply backwash water, chemical draw for cleansing both cation and anion resins simultaneously and rinsing water in a sequentially controlled manner. An internal water and chemical distribution system in the mixed bed tank is provided which has both input distribution and output drainage capabilities.

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