CA2163221A1 - Process and apparatus for the purification of graphite - Google Patents
Process and apparatus for the purification of graphiteInfo
- Publication number
- CA2163221A1 CA2163221A1 CA002163221A CA2163221A CA2163221A1 CA 2163221 A1 CA2163221 A1 CA 2163221A1 CA 002163221 A CA002163221 A CA 002163221A CA 2163221 A CA2163221 A CA 2163221A CA 2163221 A1 CA2163221 A1 CA 2163221A1
- Authority
- CA
- Canada
- Prior art keywords
- reactor
- graphite
- chlorine
- wall
- maintained
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title abstract 3
- 229910002804 graphite Inorganic materials 0.000 title abstract 3
- 239000010439 graphite Substances 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 3
- 238000000746 purification Methods 0.000 title 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract 3
- 239000000460 chlorine Substances 0.000 abstract 3
- 229910052801 chlorine Inorganic materials 0.000 abstract 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 abstract 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 2
- 239000007789 gas Substances 0.000 abstract 2
- 229910052786 argon Inorganic materials 0.000 abstract 1
- 238000009792 diffusion process Methods 0.000 abstract 1
- 239000001307 helium Substances 0.000 abstract 1
- 229910052734 helium Inorganic materials 0.000 abstract 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
- 238000010408 sweeping Methods 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/14—Production of inert gas mixtures; Use of inert gases in general
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/20—Graphite
- C01B32/21—After-treatment
- C01B32/215—Purification; Recovery or purification of graphite formed in iron making, e.g. kish graphite
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00008—Controlling the process
- B01J2208/00017—Controlling the temperature
- B01J2208/00106—Controlling the temperature by indirect heat exchange
- B01J2208/00168—Controlling the temperature by indirect heat exchange with heat exchange elements outside the bed of solid particles
- B01J2208/00176—Controlling the temperature by indirect heat exchange with heat exchange elements outside the bed of solid particles outside the reactor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00008—Controlling the process
- B01J2208/00539—Pressure
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- Inorganic Chemistry (AREA)
- Carbon And Carbon Compounds (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
A process for the use of elemental chlorine, as a gas, in high temperature processes consists in circulating chlorine in a graphite reactor which has a double wall chamber. In the space defined by the double wall, a pressure of either nitrogen, argon or helium is maintained at a value higher than the pressure inside the reactor. In so doing, a radial diffusion of the gas within the wall towards the lower pressure zone inside the reactor is maintained through the graphite wall, thus sweeping to the inside of the reactor any chlorine that would otherwise diffuse radially outward and corrode rapidly the outer metallic shell of the reactor.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CA1993/000219 WO1994027909A1 (en) | 1993-05-21 | 1993-05-21 | Process and apparatus for the purification of graphite |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2163221A1 true CA2163221A1 (en) | 1994-12-08 |
| CA2163221C CA2163221C (en) | 2001-10-30 |
Family
ID=4172973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002163221A Expired - Fee Related CA2163221C (en) | 1993-05-21 | 1993-05-21 | Process and apparatus for the purification of graphite |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU4057593A (en) |
| CA (1) | CA2163221C (en) |
| WO (1) | WO1994027909A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109336104A (en) * | 2018-11-23 | 2019-02-15 | 北京航空航天大学 | A kind of low temperature graphite purification method |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101817523B (en) * | 2009-03-19 | 2011-09-28 | 株洲弗拉德科技有限公司 | Graphite purification and graphitizable high temperature vertical continuous induction heating furnace |
| CN102745681B (en) * | 2012-07-19 | 2014-07-09 | 武汉工程大学 | Method and device for purifying graphite |
| CN106145104A (en) * | 2016-08-31 | 2016-11-23 | 无锡东恒新能源科技有限公司 | A kind of integration graphite purification equipment |
| TWI607966B (en) * | 2016-12-22 | 2017-12-11 | 國家中山科學研究院 | Method for making graphite structure of different phases |
| CN107539982A (en) * | 2017-10-31 | 2018-01-05 | 湖南国盛石墨科技有限公司 | A kind of high-purity micro crystal graphite production system and its production technology |
| EP3514130A1 (en) | 2018-01-18 | 2019-07-24 | Heraeus GMSI LLC | Process for manufacturing a silicon carbide coated body |
| EP3514257A1 (en) | 2018-01-18 | 2019-07-24 | Heraeus GMSI LLC | Process for manufacturing a silicon carbide coated body |
| EP3514129A1 (en) | 2018-01-18 | 2019-07-24 | Heraeus GMSI LLC | Process for manufacturing a silicon carbide coated body |
| EP3514128A1 (en) | 2018-01-18 | 2019-07-24 | Heraeus GMSI LLC | Process for manufacturing a silicon carbide coated body |
| EP3514259A1 (en) | 2018-01-18 | 2019-07-24 | Heraeus GMSI LLC | Process for manufacturing a silicon carbide coated body |
| EP3514127A1 (en) | 2018-01-18 | 2019-07-24 | Heraeus GMSI LLC | Process for manufacturing a silicon carbide coated body |
| EP3626865A1 (en) | 2018-09-20 | 2020-03-25 | Heraeus GMSI LLC | Susceptor and method for manufacturing the same |
| CN109437186A (en) * | 2018-11-23 | 2019-03-08 | 湖南顶立科技有限公司 | A kind of graphite powder and its denitrification process |
| CN111362263A (en) * | 2020-04-07 | 2020-07-03 | 佛山瑞之进智汇科技有限公司 | Preparation method of high-purity graphite material |
| CN111841286A (en) * | 2020-08-28 | 2020-10-30 | 上海岚玥新材料科技有限公司 | Novel graphite purification residual waste gas treatment device and process |
| CN112320793B (en) * | 2020-10-22 | 2022-04-05 | 中钢新型材料股份有限公司 | Preparation process of high-purity graphite powder for synthesizing semiconductor-grade SiC powder |
| CN112340726A (en) * | 2020-11-18 | 2021-02-09 | 湖南顶立科技有限公司 | Preparation method of high-purity graphite crucible |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2914383A (en) * | 1951-11-16 | 1959-11-24 | Graphitwerk Kropfmuhl Ag | Process of purifying graphite |
| JPS61101408A (en) * | 1984-10-19 | 1986-05-20 | Hitachi Chem Co Ltd | Purification of graphite and apparatus therefor |
| JPH0645446B2 (en) * | 1988-09-19 | 1994-06-15 | 東海カーボン株式会社 | Method for producing high-purity graphite fine powder |
-
1993
- 1993-05-21 AU AU40575/93A patent/AU4057593A/en not_active Abandoned
- 1993-05-21 CA CA002163221A patent/CA2163221C/en not_active Expired - Fee Related
- 1993-05-21 WO PCT/CA1993/000219 patent/WO1994027909A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109336104A (en) * | 2018-11-23 | 2019-02-15 | 北京航空航天大学 | A kind of low temperature graphite purification method |
Also Published As
| Publication number | Publication date |
|---|---|
| AU4057593A (en) | 1994-12-20 |
| CA2163221C (en) | 2001-10-30 |
| WO1994027909A1 (en) | 1994-12-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |