Hydrous oxide activated charcoal
Creators
Description
This patent describes a process for preparing of an ion exchanger, comprising: treating an ionically inert activated charcoal porous support with an aqueous solution of metal oxychloride selected from the group consisting of zirconium and titanium oxychlorides so as to impregnate the pores of the support with the solution; separating the treated support from excess metal oxychloride solution; converting the metal oxychloride to a hydrous metal oxide precipitate in the pores of the support at a pH above 8 and above the pH whereat the hydrous metal oxide and activated charcoal support have opposite zeta potentials and sufficient to hydrolyze the metal oxychloride. It also describes a process for preparing an ion exchanger comprising: treating granulated activated charcoal with a concentrated solution of a metal oxychloride from the group consisting of zirconium and titanium oxychlorides, degassing the mixture; and treating the resultant mixture with a base selected from the group consisting of ammonium hydroxide and alkali metal hydroxides so as to precipitate the oxychloride within the pores of the activated carbon granules as hydrous metal oxide at a pH above 8 and above the pH whereat the hydrous metal oxide and activated charcoal have opposite zeta potentials
Availability note (English)
U.S. Commissioner of Patents, Washington, D.C. 20231, USA, $.50.Additional details
Publishing Information
- Imprint Pagination
- vp.
- IPC:
- Int. Cl. B01J 20/20; B01J 20/10; B01J 20/08.
- IPC
- Int. Cl. B01J 20/20; B01J 20/10; B01J 20/08.
- Patent number
- US patent document 4,692,431/A/
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 19026484
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Resource subtype / Literary indicator
- Non-conventional Literature
- Descriptors DEI
- ACTIVATED CARBON; ALKALI METAL COMPOUNDS; AMMONIUM HYDROXIDES; AQUEOUS SOLUTIONS; CHARCOAL; CHEMICAL COMPOSITION; CHEMICAL PREPARATION; DEGASSING; GRANULAR MATERIALS; HYDROLYSIS; ION EXCHANGE; MICROSTRUCTURE; ORGANIC ION EXCHANGERS; OXYCHLORIDES; PH VALUE; POROSITY; PRECIPITATION; SEPARATION PROCESSES; TITANIUM COMPOUNDS; ZIRCONIUM COMPOUNDS
- Descriptors DEC
- ADSORBENTS; AMMONIUM COMPOUNDS; CARBON; CHEMICAL REACTIONS; CHLORINE COMPOUNDS; CRYSTAL STRUCTURE; DECOMPOSITION; DISPERSIONS; ELEMENTS; HALOGEN COMPOUNDS; HOMOGENEOUS MIXTURES; HYDROGEN COMPOUNDS; HYDROXIDES; ION EXCHANGE MATERIALS; MATERIALS; MIXTURES; NONMETALS; OXYGEN COMPOUNDS; SOLUTIONS; SOLVOLYSIS; SYNTHESIS; TRANSITION ELEMENT COMPOUNDS