METHOD OF REGENERATION OF LOW-ACID CARBOXYLIC CATIONITES Russian patent published in 2005 - IPC

Abstract RU 2257265 C1

FIELD: water treatment.

SUBSTANCE: invention relates to regeneration of cationites used on water-softening plants. In this process, of low-acid carboxylic cationites are converted into their H-Na form by consecutively passing (i) acid in stoichiometric proportion until pH 3.9-4.3 is achieved and (ii) 1.0-1.5% sodium chloride solution through cationite layer.

EFFECT: reduced consumption of reagent for the same degree of transformation.

4 tbl, 3 ex

Similar patents RU2257265C1

Title	Year	Author	Number
PROCESS FOR DESALINATING AND SOFTENING WATER	0	Fejziev Gasan Kulu	SU939398A1
METHOD OF DECARBONIZATION OF NATURAL WATER	0	Abdullaev Kamal Mikhman Ogly Malakhov Igor Aleksandrovich Poletaev Leonid Nikolaevich Mammet Abel Pavlovich Garakhanov Ararat Balakhanovich	SU1498713A1
METHOD OF TREATMENT OF HEAT-SUPPLY SYSTEM MAKE-UP WATER WITHOUT DRAINAGE	0	Fejziev Gasan Kulu Ogly Safiev Eldar Abdulovich Kuliev Ali Mamed Ogly Dzhalilov Mardan Faradzh Ogly	SU1701639A1
WATER TREATMENT PROCESS	1999	Mamchenko Aleksej Vladimirovich Stavitskij Viktor Vasil'Evich	RU2163568C1
WATER TREATMENT PROCESS	1999	Mamchenko Aleksej Vladimirovich Stavitskij Viktor Vasil'Evich	RU2163569C1
METHOD OF DEEP CHEMICAL DESALINIZATION OF WATER	0	Fejziev Gasan Kulu	SU812726A1
METHOD OF REMOVING BORON-CONTAINING CONCENTRATE AT NUCLEAR POWER STATIONS	2014	Vinnitskij Vadim Aleksandrovich Nechaev Aleksandr Fedorovich Chugunov Aleksandr Sergeevich	RU2594420C2
METHOD FOR DESALINATING WATER	0	Malakhov Igor Aleksandrovich Garakhanov Ararat Balakhan Ogly Poletaev Leonid Nikolaevich	SU1131836A1
METHOD OF DESALTING WATER	1991	Mamchenko A.V. Jakimova T.I. Sur S.V. Novozhenjuk M.S. Pilipenko I.V. Kravets E.D. Zherebilov E.I.	RU2072326C1
METHOD OF PRODUCING MINERAL SUBSTANCES OF SEA WATER	1992	Mironova L.I. Khamizov R.Kh.	RU2006476C1

RU 2 257 265 C1

Authors

Dobrin B.I.

Petrov S.V.

Borodin A.B.

Dates

2005-07-27—Published

2004-02-26—Filed