US 2014/0196753 A1Published application

Regeneration of ion exchange resin and recovery of regenerant solution

AssigneeRayne Dealership Corporation

InventorsH. Martin JESSEN, Eric John DOLE, David MORGAN

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Abstract

An apparatus and method for regenerating spent ion exchange resin and recovering regenerant fluid is described. A regeneration system has a regeneration vat, a regeneration solution tank, a regenerant recovery tank, a chemical dispenser, a solids separator, a pH adjuster and a pump. The regeneration vat holds the spent resin and is connected to the regeneration solution tank to allow transfer of regenerant solution into the regeneration vat. Spent regenerant fluid travels to the regenerant recovery tank, where it is treated with chemicals provided from the chemical dispenser. The solids separator receives the treated regenerant liquid and separates precipitate flocs from the treated regenerant liquid. The concentration of chloride ions in the separated regenerant solution can be adjusted by the pH adjuster to form fresh regenerant solution. The pump pumps the fresh regenerant solution to the regenerant solution tank to regenerate additional spent cation exchange resin.

Claims11

Dependent claims

A resin regeneration system comprising:

(a) a regeneration vat for holding spent cation exchange resin;
(b) a regenerant solution tank for holding fresh regenerant solution, the regenerant solution tank is connected to the regeneration vat to allow transfer of the regenerant solution into the regeneration vat to regenerate the spent cation exchange resin to form fresh cation exchange resin and spent regenerant solution;
(c) a regenerant recovery tank comprising (i) a fluid inlet to receive the spent regenerant solution, and (ii) a fluid outlet to release treated regenerant liquid;
(d) a chemical dispenser to dispense a regenerant treatment composition into the spent regenerant solution in the regenerant recovery tank to form a treated regenerant liquid and precipitate flocs;
(e) a solids separator to receive the treated regenerant liquid and separate the precipitate flocs from the treated regenerant liquid to form a separated regenerant solution;
(f) a pH adjuster to adjust the concentration of chloride ions in the separated regenerant solution to form fresh regenerant solution;
and
(g) a pump to pump the fresh regenerant solution to the regenerant solution tank to regenerate additional spent cation exchange resin.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/046,958Filed 5 Oct 2013
Priority: 14 Jul 2006
Published: 17 Jul 2014
Term ends: Not estimatedThe source records don’t support an estimate.

Classification20 codes

B01J 49/06
Of fixed beds: containing cationic exchangers
B01J 49/53
Characterised by the regeneration reagents: for cationic exchangers
C02F 1/5245
Using inorganic agents: using basic salts, e.g. of aluminium and iron
C02F 1/001
Treatment of water, waste water, or sewage: processes for the treatment of water whereby the filtration technique is of importance

Family

Application60/807,369Us provisional application · filed 14 Jul 2006
Application11/778,265Continuation in part · filed 16 Jul 2007
Application61/305,945Us provisional application · filed 18 Feb 2010
Application12/889,350Division · filed 23 Sep 2010
Application14/046,958Division
Application12/889,350Continuation in part
US 2008/0067131 A1Published application
US 2011/0077144 A1Published application
US 8,017,001 B2Related patent
US 8,585,906 B2Related patent
US 9,186,665 B2Related patent
US 2014/0196753 A1This patent

From the US filing history. Foreign family members aren’t listed.

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