RU2006144783A - METHOD FOR CLEANING GRAPHITE PRODUCTS - Google Patents

METHOD FOR CLEANING GRAPHITE PRODUCTS Download PDF

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Publication number
RU2006144783A
RU2006144783A RU2006144783/15A RU2006144783A RU2006144783A RU 2006144783 A RU2006144783 A RU 2006144783A RU 2006144783/15 A RU2006144783/15 A RU 2006144783/15A RU 2006144783 A RU2006144783 A RU 2006144783A RU 2006144783 A RU2006144783 A RU 2006144783A
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RU
Russia
Prior art keywords
vacuum
carried out
products
torr
cooling
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RU2006144783/15A
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Russian (ru)
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RU2333152C1 (en
Inventor
Сергей Константинович Брантов (RU)
Сергей Константинович Брантов
Андрей Александрович Колчин (RU)
Андрей Александрович Колчин
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Институт Физики Твердого Тела Ран (Ru)
Институт физики твердого тела РАН
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Priority to RU2006144783/15A priority Critical patent/RU2333152C1/en
Publication of RU2006144783A publication Critical patent/RU2006144783A/en
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Publication of RU2333152C1 publication Critical patent/RU2333152C1/en

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Abstract

Способ очистки графитовых изделий, включающий нагрев графитовых изделий в вакууме, подачу хладона-12 и охлаждение в вакууме либо в среде инертного газа, отличающийся тем, что нагрев проводят до температуры 2000°C, затем откачку прекращают, а в зону вводят пары четыреххлористого углерода класса ОСЧ до давления 50 Торр, далее после выдержки в течение 30 мин, проводят откачку реакционных продуктов через азотную ловушку, затем повышают температуру до 2100°C, прекращают откачку и вводят в зону хладон-12 до давления 30 Торр, далее после выдержки в течение 30 мин проводят откачку реакционных продуктов через азотную ловушку, затем осуществляют изотермическую выдержку при 2100°C в вакууме в течение 2 ч, охлаждение проводят в вакууме либо в среде инертного газа.A method of cleaning graphite products, including heating graphite products in vacuum, supplying HFC-12 and cooling in vacuum or in an inert gas medium, characterized in that the heating is carried out to a temperature of 2000 ° C, then pumping is stopped, and carbon tetrachloride vapors of the class are introduced into the zone TSP to a pressure of 50 Torr, then after holding for 30 minutes, pump the reaction products through a nitrogen trap, then increase the temperature to 2100 ° C, stop pumping and introduce HFC-12 to a pressure of 30 Torr, then after holding for 3 0 min. The reaction products are pumped out through a nitrogen trap, then isothermal exposure is carried out at 2100 ° C in vacuum for 2 hours, cooling is carried out in vacuum or in an inert gas medium.

Claims (1)

Способ очистки графитовых изделий, включающий нагрев графитовых изделий в вакууме, подачу хладона-12 и охлаждение в вакууме либо в среде инертного газа, отличающийся тем, что нагрев проводят до температуры 2000°C, затем откачку прекращают, а в зону вводят пары четыреххлористого углерода класса ОСЧ до давления 50 Торр, далее после выдержки в течение 30 мин, проводят откачку реакционных продуктов через азотную ловушку, затем повышают температуру до 2100°C, прекращают откачку и вводят в зону хладон-12 до давления 30 Торр, далее после выдержки в течение 30 мин проводят откачку реакционных продуктов через азотную ловушку, затем осуществляют изотермическую выдержку при 2100°C в вакууме в течение 2 ч, охлаждение проводят в вакууме либо в среде инертного газа.A method of cleaning graphite products, including heating graphite products in vacuum, supplying HFC-12 and cooling in vacuum or in an inert gas medium, characterized in that the heating is carried out to a temperature of 2000 ° C, then pumping is stopped, and carbon tetrachloride vapors of the class are introduced into the zone TSP to a pressure of 50 Torr, then after holding for 30 minutes, pump the reaction products through a nitrogen trap, then increase the temperature to 2100 ° C, stop pumping and introduce HFC-12 to a pressure of 30 Torr, then after holding for 3 0 min. The reaction products are pumped out through a nitrogen trap, then isothermal exposure is carried out at 2100 ° C in vacuum for 2 hours, cooling is carried out in vacuum or in an inert gas medium.
RU2006144783/15A 2006-12-15 2006-12-15 Method of graphite articles purification RU2333152C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2006144783/15A RU2333152C1 (en) 2006-12-15 2006-12-15 Method of graphite articles purification

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Application Number Priority Date Filing Date Title
RU2006144783/15A RU2333152C1 (en) 2006-12-15 2006-12-15 Method of graphite articles purification

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RU2006144783A true RU2006144783A (en) 2008-06-20
RU2333152C1 RU2333152C1 (en) 2008-09-10

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113603085A (en) * 2021-03-19 2021-11-05 哈尔滨理工大学 Method for efficiently purifying graphite
CN116332173A (en) * 2023-05-29 2023-06-27 江苏金亚隆科技有限公司 High-temperature purification method of graphite product

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101983917B (en) * 2010-11-02 2012-11-07 黑龙江省牡丹江农垦奥宇石墨深加工有限公司 Preparation method of high purity graphite
RU2612713C1 (en) * 2016-03-17 2017-03-13 Акционерное общество "Научно-исследовательский институт конструкционных материалов на основе графита "НИИграфит" Method for producing high purity natural graphite

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113603085A (en) * 2021-03-19 2021-11-05 哈尔滨理工大学 Method for efficiently purifying graphite
CN116332173A (en) * 2023-05-29 2023-06-27 江苏金亚隆科技有限公司 High-temperature purification method of graphite product
CN116332173B (en) * 2023-05-29 2023-08-22 江苏金亚隆科技有限公司 High-temperature purification method of graphite product

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Publication number Publication date
RU2333152C1 (en) 2008-09-10

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Effective date: 20131216