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# c19) United States c12) Patent Application Publication 

# Carlson et al. 

# (54) COMPOSITION AND METHOD FOR REGENERATING CATION EXCHANGE RESINS 

(71) Applicant: Tygrus, LLC, Troy, MI (US) 

(72) Inventors: Lawrence Carlson, Troy, MI (US); Andrew M. Yaksic, Brighton, MI (US) 

(73) Assignee: Tygrus, LLC, Troy, MI (US) 

(21) Appl. No.: 16/818,271 

(22) Filed: Mar. 13, 2020 

(60) Provisional application No. 62/819,196, filed on Mar. 15, 2019. 

## Related U.S. Application Data 

<img src='content_image/935447.jpg'>

(51) Int. Cl. 

(52) U.S. Cl. CPC ......... BOJJ 49175 (2017.01); C02F 2001/425 (2013.01); C02F 1142 (2013.01); BOJJ 49153 (2017.01) 

## (57) ABSTRACT 

A method for regeneration of ion exchange material employed in a water softening or conditioning system. The method includes the step of contacting the ion exchange material with an aqueous process fluid to yield a regenerated ion exchange material. At least one target material associ› ated with the resin is removed. The target material includes at least one of the following: metal ions such as those that have been extracted from a source of hard water, ionically soluble organic compounds, active water borne pathogens. 

US 20200290034Al 

# c10) Pub. No.: US 2020/0290034 Al 

# (43) Pub. Date: Sep. 17, 2020 

## Publication Classification 

<img src='content_image/935466.jpg'>

