RU2011132964A - METHOD FOR PRODUCING THERMAL EXTENDED GRAPHITE AND FOIL ON ITS BASIS - Google Patents
METHOD FOR PRODUCING THERMAL EXTENDED GRAPHITE AND FOIL ON ITS BASIS Download PDFInfo
- Publication number
- RU2011132964A RU2011132964A RU2011132964/05A RU2011132964A RU2011132964A RU 2011132964 A RU2011132964 A RU 2011132964A RU 2011132964/05 A RU2011132964/05 A RU 2011132964/05A RU 2011132964 A RU2011132964 A RU 2011132964A RU 2011132964 A RU2011132964 A RU 2011132964A
- Authority
- RU
- Russia
- Prior art keywords
- graphite
- nitric acid
- compounds
- intercalated
- intercalated graphite
- Prior art date
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract 25
- 229910002804 graphite Inorganic materials 0.000 title claims abstract 11
- 239000010439 graphite Substances 0.000 title claims abstract 11
- 238000004519 manufacturing process Methods 0.000 title 1
- 238000000034 method Methods 0.000 claims abstract 15
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims abstract 12
- 229910017604 nitric acid Inorganic materials 0.000 claims abstract 12
- 238000010438 heat treatment Methods 0.000 claims abstract 5
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract 4
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract 4
- 238000002360 preparation method Methods 0.000 claims abstract 4
- 230000035939 shock Effects 0.000 claims abstract 3
- 239000002253 acid Substances 0.000 claims abstract 2
- -1 amide derivatives of carbonic acid Chemical class 0.000 claims abstract 2
- 229910021529 ammonia Inorganic materials 0.000 claims abstract 2
- 150000003863 ammonium salts Chemical class 0.000 claims abstract 2
- 230000002687 intercalation Effects 0.000 claims abstract 2
- 238000009830 intercalation Methods 0.000 claims abstract 2
- 230000003472 neutralizing effect Effects 0.000 claims abstract 2
- 230000003647 oxidation Effects 0.000 claims abstract 2
- 238000007254 oxidation reaction Methods 0.000 claims abstract 2
- 239000000126 substance Substances 0.000 claims abstract 2
- 239000011888 foil Substances 0.000 claims 1
Landscapes
- Carbon And Carbon Compounds (AREA)
Abstract
1. Способ получения терморасширенного графита, характеризующийся тем, что включает следующие стадии:(a) получение интеркалированных соединений графита путем взаимодействия графита с концентрированной азотной кислотой;(b) нейтрализацию избытка азотной кислоты на поверхности полученных в соответствии со стадией (а) интеркалированных соединений графита, в условиях, обеспечивающих, по существу, неизменность фазового состава упомянутых интеркалированных соединений графита путем их обработки, по меньшей мере, одним реагентом, выбранным из группы, включающей безводные аммониевые производные угольной кислоты, безводные амидные производные угольной кислоты и газообразный аммиак;(c) последующий нагрев обработанных в соответствии со стадией (b) интеркалированных соединений графита в режиме термоудара с получением терморасширенного графита.2. Способ по п.1, характеризующийся тем, что стадии (а) и (b) ведут при выполнении следующих соотношений: М: М: М=1:(0,4-0,8):(0,1-0,3), где M- масса графита, мас.ч; М- масса азотной кислоты, мас.ч; М- масса реагента, мас.ч.3. Способ по п.1, характеризующийся тем, что получение интеркалированных соединений графита на стадии (а) осуществляют путем химического интеркалирования.4. Способ по п.3, характеризующийся тем, что используют 80-98% азотную кислоту.5. Способ по п.1, характеризующийся тем, что получение интеркалированных соединений графита на стадии (а) осуществляют путем анодного окисления.6. Способ по п.5, характеризующийся тем, что используют 58-98% азотную кислоту.7. Способ по п.1, характеризующийся тем, что перед нагревом на стадии (с) интеркалированные соединения графита, обработанные в соответствии со ст1. A method of producing thermally expanded graphite, characterized in that it comprises the following steps: (a) obtaining intercalated graphite compounds by reacting graphite with concentrated nitric acid; (b) neutralizing the excess nitric acid on the surface obtained in accordance with stage (a) of intercalated graphite compounds , under conditions that ensure essentially the unchanged phase composition of the said intercalated graphite compounds by treating them with at least one reagent selected from groups including anhydrous ammonium derivatives of carbonic acid, anhydrous amide derivatives of carbonic acid and gaseous ammonia; (c) subsequent heating of the graphite compounds intercalated in accordance with step (b) in thermal shock mode to obtain thermally expanded graphite. 2. The method according to claim 1, characterized in that stage (a) and (b) are carried out when the following relationships are fulfilled: M: M: M = 1: (0.4-0.8) :( 0.1-0.3 ), where M is the mass of graphite, wt.h; M is the mass of nitric acid, wt.h; M is the mass of the reagent, parts by weight of 3. The method according to claim 1, characterized in that the preparation of intercalated graphite compounds in stage (a) is carried out by chemical intercalation. The method according to claim 3, characterized in that 80-98% nitric acid is used. The method according to claim 1, characterized in that the preparation of intercalated graphite compounds in stage (a) is carried out by anodic oxidation. The method according to claim 5, characterized in that 58-98% nitric acid is used. The method according to claim 1, characterized in that prior to heating in step (c), intercalated graphite compounds processed in accordance with
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2011132964/05A RU2480406C2 (en) | 2011-08-08 | 2011-08-08 | Method of producing thermally expanded graphite and foil based thereon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2011132964/05A RU2480406C2 (en) | 2011-08-08 | 2011-08-08 | Method of producing thermally expanded graphite and foil based thereon |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU2011132964A true RU2011132964A (en) | 2013-02-27 |
| RU2480406C2 RU2480406C2 (en) | 2013-04-27 |
Family
ID=49119888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2011132964/05A RU2480406C2 (en) | 2011-08-08 | 2011-08-08 | Method of producing thermally expanded graphite and foil based thereon |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU2480406C2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112351952A (en) * | 2018-06-29 | 2021-02-09 | 优尼基泰克联合股份公司科学与生产协会 | Graphite foil, sheet material based thereon, seal and manufacturing method |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2561074C1 (en) * | 2014-03-26 | 2015-08-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Ивановский государственный химико-технологический университет"(ФГБОУ ВПО "ИГХТУ") | Method of obtaining oxidised graphite |
| RU2610596C1 (en) * | 2015-10-15 | 2017-02-14 | Закрытое акционерное общество "Институт новых углеродных материалов и технологий" (ЗАО "ИНУМиТ") | Method of producing thermally expanded graphite |
| RU2702431C1 (en) * | 2018-07-23 | 2019-10-08 | Акционерное общество "УНИХИМТЕК" (АО "УНИХИМТЕК") | Carbon heat-distributing plate for production of ceiling and wall heating and air conditioning systems |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2118941C1 (en) * | 1997-04-16 | 1998-09-20 | Общество с ограниченной ответственностью "ГраЭН" | Method of production of oxidized graphite |
| RU2377223C1 (en) * | 2008-06-25 | 2009-12-27 | Закрытое акционерное общество "Институт новых углеродных материалов и технологий" (ЗАО "ИНУМиТ") | Method to produce composite carbon materials |
| RU2415078C1 (en) * | 2009-10-05 | 2011-03-27 | Институт новых углеродных материалов и технологий (Закрытое акционерное общество), (ИНУМиТ (ЗАО)) | Method of producing intercalated graphite |
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2011
- 2011-08-08 RU RU2011132964/05A patent/RU2480406C2/en active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112351952A (en) * | 2018-06-29 | 2021-02-09 | 优尼基泰克联合股份公司科学与生产协会 | Graphite foil, sheet material based thereon, seal and manufacturing method |
| CN112351952B (en) * | 2018-06-29 | 2024-04-26 | 优尼基泰克联合股份公司科学与生产协会 | Graphite foil, sheet material based thereon, seal and manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2480406C2 (en) | 2013-04-27 |
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