MD2234B1 - Process for regeneration of heavy-basic anionites modified with Cr(III) - Google Patents

Process for regeneration of heavy-basic anionites modified with Cr(III)

Info

Publication number
MD2234B1
MD2234B1 MD20010371A MD20010371A MD2234B1 MD 2234 B1 MD2234 B1 MD 2234B1 MD 20010371 A MD20010371 A MD 20010371A MD 20010371 A MD20010371 A MD 20010371A MD 2234 B1 MD2234 B1 MD 2234B1
Authority
MD
Moldova
Prior art keywords
regeneration
iii
heavy
modified
anionites
Prior art date
Application number
MD20010371A
Other languages
Romanian (ro)
Other versions
MD2234C2 (en
Inventor
Vasile Gutanu
Raisa Druta
Original Assignee
Univ De Stat Din Moldova
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Univ De Stat Din Moldova filed Critical Univ De Stat Din Moldova
Priority to MDA20010371A priority Critical patent/MD2234C2/en
Publication of MD2234B1 publication Critical patent/MD2234B1/en
Publication of MD2234C2 publication Critical patent/MD2234C2/en

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  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

The invention relates to a process for regeneration of heavy-basic anionites with Cr(III) and may be used for regeneration of reticulate ionogenic polymers. The process consists in that the anionites are treated with 1,0...1,5 M H2SO4 solution, within 1,0...1,5 hours, at the boiling point.The result consists in that the exhausted polymer, modified with Cr(III) compounds, is regenerated for recurrent modification or for use on other purposes.Claims: 1
MDA20010371A 2001-11-15 2001-11-15 Process for regeneration of heavy-basic anionites modified with Cr(III) MD2234C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MDA20010371A MD2234C2 (en) 2001-11-15 2001-11-15 Process for regeneration of heavy-basic anionites modified with Cr(III)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MDA20010371A MD2234C2 (en) 2001-11-15 2001-11-15 Process for regeneration of heavy-basic anionites modified with Cr(III)

Publications (2)

Publication Number Publication Date
MD2234B1 true MD2234B1 (en) 2003-08-31
MD2234C2 MD2234C2 (en) 2004-02-29

Family

ID=29267989

Family Applications (1)

Application Number Title Priority Date Filing Date
MDA20010371A MD2234C2 (en) 2001-11-15 2001-11-15 Process for regeneration of heavy-basic anionites modified with Cr(III)

Country Status (1)

Country Link
MD (1) MD2234C2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD106Z (en) * 2008-01-29 2010-06-30 Государственный Университет Молд0 Process for regeneration of ionite with nickel and zinc content
MD107Z (en) * 2009-07-01 2010-06-30 Государственный Университет Молд0 Process for regeneration of ionite with copper content

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD1027G2 (en) * 1997-12-24 2000-01-31 Технический университет Молдовы Process for Cr(III) modification of the ionogene cross-linked polymers, containing R4N+ groups

Also Published As

Publication number Publication date
MD2234C2 (en) 2004-02-29

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Legal Events

Date Code Title Description
KA4A Patent for invention lapsed due to non-payment of fees (with right of restoration)
MM4A Patent for invention definitely lapsed due to non-payment of fees