SU1328986A1 - METHOD OF DESORPTION OF SILICON COMPOUNDS WITH ANIONITE - Google Patents

METHOD OF DESORPTION OF SILICON COMPOUNDS WITH ANIONITE

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Publication number
SU1328986A1
SU1328986A1 SU3941879/26A SU3941879A SU1328986A1 SU 1328986 A1 SU1328986 A1 SU 1328986A1 SU 3941879/26 A SU3941879/26 A SU 3941879/26A SU 3941879 A SU3941879 A SU 3941879A SU 1328986 A1 SU1328986 A1 SU 1328986A1
Authority
SU
USSR - Soviet Union
Prior art keywords
silicon
desorption
suspension
sodium hydroxide
stirring
Prior art date
Application number
SU3941879/26A
Other languages
Russian (ru)
Inventor
Б.Н. Ласкорин
Л.И. Водолазов
В.Г. Литвиненко
Н.Б. Команецкий
В.В. Мукминов
Л.Н. Фастова
Original Assignee
Б.Н. Ласкорин
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Б.Н. Ласкорин filed Critical Б.Н. Ласкорин
Priority to SU3941879/26A priority Critical patent/SU1328986A1/en
Application granted granted Critical
Publication of SU1328986A1 publication Critical patent/SU1328986A1/en

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Abstract

1. Способ десорбции соединений кремния с анионитов, включающий обработку анионита раствором минеральной соли и введение в суспензию гидроксида натрия при перемешивании, отличающийся тем, что, с целью снижения расхода гидроксида натрия, более полной десорбции кремния и повышения механической прочности регенерированного анионита, гидроксид натрия вводят в суспензию до pH среды 12,8 - 13,0, перемешивание ведут до концентрации кремния в суспензии (в расчете на диоксид кремния) 10 - 15 г/л и мольного отношения натрия, введенного со свободной щелочью, к кремнию 1,3 - 1,6, после чего уменьшают количество вводимого гидроксида натрия до pH среды 11,0 - 12,4, а перемешивание ведут до концентрации кремния в суспензии (в расчете на диоксид кремния) 40 - 50 г/л и мольного отношения натрия к кремнию 0,4 - 1,0.2. Способ по п.1, отличающийся тем, что при десорбции анионитов с содержанием в них кремния выше 40% (в расчете на диоксид кремния) процесс ведут при 35 - 40C.1. The method of desorption of silicon compounds from anion exchangers, including the treatment of anion exchanger with a solution of mineral salt and the introduction of sodium hydroxide into the suspension with stirring, characterized in that, in order to reduce the consumption of sodium hydroxide, more complete desorption of silicon and increase the mechanical strength of the regenerated anion exchange resin, sodium hydroxide is injected in suspension until the pH of the medium is 12.8 - 13.0, stirring is carried out until the concentration of silicon in the suspension (based on silicon dioxide) is 10-15 g / l and the molar ratio of sodium introduced with free alkali, silicon 1.3 - 1.6, then reduce the amount of sodium hydroxide added to a pH of 11.0 - 12.4, and stirring is carried out to a concentration of silicon in suspension (calculated on silica) 40 to 50 g / l and molar the relationship of sodium to silicon is 0.4 - 1.0.2. The method according to claim 1, characterized in that during desorption of anion exchangers with silicon content in them above 40% (calculated on silicon dioxide), the process is carried out at 35 - 40C.

SU3941879/26A 1985-06-07 1985-06-07 METHOD OF DESORPTION OF SILICON COMPOUNDS WITH ANIONITE SU1328986A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU3941879/26A SU1328986A1 (en) 1985-06-07 1985-06-07 METHOD OF DESORPTION OF SILICON COMPOUNDS WITH ANIONITE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU3941879/26A SU1328986A1 (en) 1985-06-07 1985-06-07 METHOD OF DESORPTION OF SILICON COMPOUNDS WITH ANIONITE

Publications (1)

Publication Number Publication Date
SU1328986A1 true SU1328986A1 (en) 1999-08-27

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ID=60534931

Family Applications (1)

Application Number Title Priority Date Filing Date
SU3941879/26A SU1328986A1 (en) 1985-06-07 1985-06-07 METHOD OF DESORPTION OF SILICON COMPOUNDS WITH ANIONITE

Country Status (1)

Country Link
SU (1) SU1328986A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2448042C1 (en) * 2010-08-20 2012-04-20 Государственное образовательное учреждение высшего профессионального образования "Национальный исследовательский Томский политехнический университет" Method of silicone desorption from anionites
RU2456237C2 (en) * 2010-08-20 2012-07-20 Государственное образовательное учреждение высшего профессионального образования "Национальный исследовательский Томский политехнический университет" Method for desorption of silicon from anionites

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2448042C1 (en) * 2010-08-20 2012-04-20 Государственное образовательное учреждение высшего профессионального образования "Национальный исследовательский Томский политехнический университет" Method of silicone desorption from anionites
RU2456237C2 (en) * 2010-08-20 2012-07-20 Государственное образовательное учреждение высшего профессионального образования "Национальный исследовательский Томский политехнический университет" Method for desorption of silicon from anionites

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