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Application filed by Univ De Stat Din MoldovafiledCriticalUniv De Stat Din Moldova
Priority to MDA20010371ApriorityCriticalpatent/MD2234C2/en
Publication of MD2234B1publicationCriticalpatent/MD2234B1/en
Publication of MD2234C2publicationCriticalpatent/MD2234C2/en
Solid-Sorbent Or Filter-Aiding Compositions
(AREA)
Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications
(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
MDA20010371A2001-11-152001-11-15Process for regeneration of heavy-basic anionites modified with Cr(III)
MD2234C2
(en)
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Removing oxygen from water by treating the water with an oxygen scavenger in the presence of catalyst comprises using a transition metal complex as the catalyst
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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