Liquid purification or separation – Processes – Ion exchange or selective sorption
Patent
1991-07-29
1993-03-02
Cintins, Ivars
Liquid purification or separation
Processes
Ion exchange or selective sorption
210660, B01D 1500
Patent
active
051906627
ABSTRACT:
Aqueous alkanolamine solution containing iron sulfide particles is passed through a bed of contact materials having openings greater than the size of the iron sulfide particles and the iron sulfide particles adhere to the contact material. The contact material is regenerated to sequentially remove alkanolamine and iron sulfide particles by contacting it with water.
REFERENCES:
patent: 3732669 (1973-05-01), Chambers
patent: 4206049 (1980-06-01), Stana et al.
patent: 4350590 (1982-09-01), Robinson
patent: 4370236 (1983-01-01), Ferguson
patent: 4933071 (1990-06-01), Heyse
Cummings Arthur L.
Keller Alfred E.
Severson Regina A.
Thompsen James C.
Veatch Fred C.
Cintins Ivars
Conoco Inc.
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