RU2010142809A - METHOD FOR PRODUCING HIGH PURITY SYNTHETIC SILICON DIOXIDE - Google Patents

METHOD FOR PRODUCING HIGH PURITY SYNTHETIC SILICON DIOXIDE Download PDF

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Publication number
RU2010142809A
RU2010142809A RU2010142809/05A RU2010142809A RU2010142809A RU 2010142809 A RU2010142809 A RU 2010142809A RU 2010142809/05 A RU2010142809/05 A RU 2010142809/05A RU 2010142809 A RU2010142809 A RU 2010142809A RU 2010142809 A RU2010142809 A RU 2010142809A
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Russia
Prior art keywords
ammonium
water
silicon dioxide
high purity
purified
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RU2010142809/05A
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Russian (ru)
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RU2458006C2 (en
Inventor
Владимир Михайлович Борщев (RU)
Владимир Михайлович Борщев
Александр Николаевич Дьяченко (RU)
Александр Николаевич Дьяченко
Роман Иванович Крайденко (RU)
Роман Иванович Крайденко
Дмитрий Дмитриевич Щербаков (RU)
Дмитрий Дмитриевич Щербаков
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Дмитрий Дмитриевич Щербаков (RU)
Дмитрий Дмитриевич Щербаков
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Priority to RU2010142809/05A priority Critical patent/RU2458006C2/en
Publication of RU2010142809A publication Critical patent/RU2010142809A/en
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Abstract

Метод получения синтетического диоксида кремния высокой чистоты, включающий взаимодействие кварцсодержащего сырья с фторидами аммония при нагревании, растворение фторсиликата аммония в воде, обработку раствора аммиачной водой с последующим отделением синтетического диоксида кремния, отличающийся тем, что взаимодействие исходного кварцсодержащего сырья проводят с фторидом, гидродифторидом аммония или их смесью, полученный кремнефторид аммония очищают от примесей металлов сублимационной перегонкой, раствор кремнефторида аммония в воде очищают от примесей неметаллов экстракцией. A method for producing synthetic silica of high purity, including the interaction of quartz-containing raw materials with ammonium fluorides when heated, dissolving ammonium fluorosilicate in water, processing a solution of ammonia water with subsequent separation of synthetic silicon dioxide, characterized in that the interaction of the starting quartz-containing raw materials is carried out with fluoride, ammonium hydrofluoride or with their mixture, the obtained ammonium silicofluoride is purified from metal impurities by sublimation distillation, a solution of ammonium silicofluoride in water is purified from impurities of non-metals by extraction.

Claims (1)

Метод получения синтетического диоксида кремния высокой чистоты, включающий взаимодействие кварцсодержащего сырья с фторидами аммония при нагревании, растворение фторсиликата аммония в воде, обработку раствора аммиачной водой с последующим отделением синтетического диоксида кремния, отличающийся тем, что взаимодействие исходного кварцсодержащего сырья проводят с фторидом, гидродифторидом аммония или их смесью, полученный кремнефторид аммония очищают от примесей металлов сублимационной перегонкой, раствор кремнефторида аммония в воде очищают от примесей неметаллов экстракцией. A method for producing synthetic silica of high purity, including the interaction of quartz-containing raw materials with ammonium fluorides when heated, dissolving ammonium fluorosilicate in water, processing a solution of ammonia water with subsequent separation of synthetic silicon dioxide, characterized in that the interaction of the starting quartz-containing raw materials is carried out with fluoride, ammonium hydrofluoride or with their mixture, the obtained ammonium silicofluoride is purified from metal impurities by sublimation distillation, a solution of ammonium silicofluoride in water is purified from impurities of non-metals by extraction.
RU2010142809/05A 2010-10-19 2010-10-19 Method of producing high-purity synthetic silicon dioxide RU2458006C2 (en)

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RU2458006C2 RU2458006C2 (en) 2012-08-10

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107686114A (en) * 2017-08-16 2018-02-13 张旭 The apparatus and method for preparing white carbon or high-purity silicon dioxide

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2747934C1 (en) * 2020-10-15 2021-05-17 федеральное государственное автономное образовательное учреждение высшего образования «Национальный исследовательский Томский политехнический университет» Method for producing synthetic silicon dioxide of high purity
WO2022124923A1 (en) 2020-12-10 2022-06-16 Замир Исакович БЕКБОЕВ Method for producing ultra-high purity amorphous silicon dioxide

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1859998A (en) * 1927-12-23 1932-05-24 Clay Reduction Company Hydrated silica
US5266289A (en) * 1989-11-16 1993-11-30 Nissan Chemical Industries Ltd. Process for producing high-purity silica by reacting crude silica with ammonium fluoride
RU2097321C1 (en) * 1996-02-20 1997-11-27 Институт химии Дальневосточного отделения РАН Method for producing ammonium hexafluorosilicate
RU2357925C1 (en) * 2007-12-07 2009-06-10 Государственное образовательное учреждение высшего профессионального образования Томский политехнический университет Silicon dioxide process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107686114A (en) * 2017-08-16 2018-02-13 张旭 The apparatus and method for preparing white carbon or high-purity silicon dioxide

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Effective date: 20121020