RU2008132596A - METHOD FOR PRODUCING PURE GRAPHITE - Google Patents
METHOD FOR PRODUCING PURE GRAPHITE Download PDFInfo
- Publication number
- RU2008132596A RU2008132596A RU2008132596/15A RU2008132596A RU2008132596A RU 2008132596 A RU2008132596 A RU 2008132596A RU 2008132596/15 A RU2008132596/15 A RU 2008132596/15A RU 2008132596 A RU2008132596 A RU 2008132596A RU 2008132596 A RU2008132596 A RU 2008132596A
- Authority
- RU
- Russia
- Prior art keywords
- preforms
- furnace
- temperature
- cleaning reagent
- difluorochloromethane
- Prior art date
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract 3
- 229910002804 graphite Inorganic materials 0.000 title claims abstract 3
- 239000010439 graphite Substances 0.000 title claims abstract 3
- 238000004519 manufacturing process Methods 0.000 title 1
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract 6
- 238000004140 cleaning Methods 0.000 claims abstract 6
- 238000000034 method Methods 0.000 claims abstract 6
- VOPWNXZWBYDODV-UHFFFAOYSA-N Chlorodifluoromethane Chemical compound FC(F)Cl VOPWNXZWBYDODV-UHFFFAOYSA-N 0.000 claims abstract 4
- 238000001816 cooling Methods 0.000 claims abstract 4
- 238000005087 graphitization Methods 0.000 claims abstract 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims abstract 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims abstract 2
- 229910052801 chlorine Inorganic materials 0.000 claims abstract 2
- 239000000460 chlorine Substances 0.000 claims abstract 2
- 229910052731 fluorine Inorganic materials 0.000 claims abstract 2
- 239000011737 fluorine Substances 0.000 claims abstract 2
- 238000010438 heat treatment Methods 0.000 claims abstract 2
Landscapes
- Battery Electrode And Active Subsutance (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
1. Способ получения чистого графита в печах графитации, включающий нагревание заготовок в зоне высокой температуры, в атмосфере фтора и хлора, во время работы печи и при последующем охлаждении в течении 3-4 ч после отключения печи с равномерным почасовым расходом очистного реагента 0,7-0,8% от массы заготовок, а после 3-4 ч охлаждения при почасовом расходе очистного реагента 0,1-0,5% от массы заготовок до температуры заготовок 1800-1900°С, отличающийся тем, что в качестве очистного реагента берут дифторхлорметан. ! 2. Способ по п.1, отличающийся тем, что обработку заготовок дифторхлорметаном начинают при температуре заготовок 2100-2200°С. ! 3. Способ по п.1,2, отличающийся тем, что печь графитации отключают при температуре заготовок 2700-2800°С.1. A method of producing pure graphite in graphitization furnaces, comprising heating preforms in a high temperature zone, in an atmosphere of fluorine and chlorine, during operation of the furnace and with subsequent cooling for 3-4 hours after turning off the furnace with a uniform hourly flow rate of the cleaning reagent 0.7 -0.8% by weight of the preforms, and after 3-4 hours of cooling at an hourly flow rate of the cleaning reagent 0.1-0.5% of the mass of preforms to the temperature of the preforms 1800-1900 ° C, characterized in that they take as a cleaning reagent difluorochloromethane. ! 2. The method according to claim 1, characterized in that the treatment of the preforms with difluorochloromethane begins at a temperature of the preforms of 2100-2200 ° C. ! 3. The method according to p. 1,2, characterized in that the graphitization furnace is turned off at a workpiece temperature of 2700-2800 ° C.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2008132596/15A RU2394758C2 (en) | 2008-08-08 | 2008-08-08 | Method of obtaining pure graphite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2008132596/15A RU2394758C2 (en) | 2008-08-08 | 2008-08-08 | Method of obtaining pure graphite |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU2008132596A true RU2008132596A (en) | 2010-02-20 |
| RU2394758C2 RU2394758C2 (en) | 2010-07-20 |
Family
ID=42126610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2008132596/15A RU2394758C2 (en) | 2008-08-08 | 2008-08-08 | Method of obtaining pure graphite |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU2394758C2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108821277A (en) * | 2018-08-29 | 2018-11-16 | 辽宁新瑞碳材料科技有限公司 | A kind of preparation method of diamond raw material |
| CN115140729A (en) * | 2022-07-18 | 2022-10-04 | 株洲弗拉德科技有限公司 | Preparation method of high-purity carbon material |
| CN119018889A (en) * | 2024-08-19 | 2024-11-26 | 中南大学 | High-purity graphite above 4N and its continuous gas phase preparation method and application |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN115182154B (en) * | 2022-07-22 | 2024-01-26 | 江苏米格新材料股份有限公司 | Ultra-high-purity viscose-based graphite felt and preparation method and application thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1047179B (en) * | 1957-10-25 | 1958-12-24 | Siemens Planiawerke Ag | Process for the production of pure graphite which can be used as a reactor material |
| US3416895A (en) * | 1966-10-12 | 1968-12-17 | Ultra Carbon Corp | Method of purifying graphite |
| RU2071935C1 (en) * | 1993-08-06 | 1997-01-20 | Акционерное общество открытого типа "Московский электродный завод" | Method of purifying a carbon material |
-
2008
- 2008-08-08 RU RU2008132596/15A patent/RU2394758C2/en not_active IP Right Cessation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108821277A (en) * | 2018-08-29 | 2018-11-16 | 辽宁新瑞碳材料科技有限公司 | A kind of preparation method of diamond raw material |
| CN115140729A (en) * | 2022-07-18 | 2022-10-04 | 株洲弗拉德科技有限公司 | Preparation method of high-purity carbon material |
| CN119018889A (en) * | 2024-08-19 | 2024-11-26 | 中南大学 | High-purity graphite above 4N and its continuous gas phase preparation method and application |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2394758C2 (en) | 2010-07-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20110809 |