CN100396371C - Carbonizing-body diamond catalyst and preparing method - Google Patents
Carbonizing-body diamond catalyst and preparing method Download PDFInfo
- Publication number
- CN100396371C CN100396371C CNB2007100132212A CN200710013221A CN100396371C CN 100396371 C CN100396371 C CN 100396371C CN B2007100132212 A CNB2007100132212 A CN B2007100132212A CN 200710013221 A CN200710013221 A CN 200710013221A CN 100396371 C CN100396371 C CN 100396371C
- Authority
- CN
- China
- Prior art keywords
- cementite
- diamond
- powder
- graphite
- iron
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Catalysts (AREA)
Abstract
This invention relates to a diamond shape carburizing catalyst and preparation methods, by weight of each component in terms of cementite 38-69, iron 26-41, nickel 5-15, and graphite 1-8.4. The preparation method of synthetic diamond shape carburizing catalyst: A. the powder of carburization, iron, nickel powder, and graphite mixed uniform drying the damp according to the aforementioned weight; B. Mixed powder cold molding remaining in the 620-pressure; C. shaping, surface cleaning, removing dirt. This invention used cementite, iron, nickel and graphite as a catalyst to compose synthetic diamond, can provide a lot of cementite in the process of synthesis to supplement the consumed cementite in the diamond growth process, thereby diamond formation and growth continue to be maintained, in order to provide material source of obtaining high-grade, high-yield, the big diamond particles.
Description
Technical field
The present invention relates to metal material field, especially for carbonizing-body diamond catalyst that synthesizes high-grade, bulky diamond monocrystalline and preparation method thereof.
Background technology
We know that graphitic carbon and diamond are respectively the different expression forms of carbon, belong to the isomer of carbon.Artificially synthesizing diamond, its essence is exactly under manual intervention, the graphite of carbon is constructed be transformed into the diamond structure.669 pages of 2002 " Science Bulletin " the 47th the 9th phases of volume have delivered people such as Xu Bin and have been entitled as " growth of the structure of metal coating and Fe base catalyst diamond synthesis " achievement in research, found transformational relation between graphitic carbon, cementite and the diamond from microstructure in the literary composition, proved by graphitic carbon to be transformed into the process that rearranges that diamond is not a simple carbon atom, but needed through a series of intermediate link.Wherein, the γ of cementite in catalyst-(Fe, under attraction Ni), with carbon atom group with the intermediate structure of sheet form from Fe
3Precipitation among the C, last, this carbon atom group is stacked on the diamond plane surface.Obviously, as the raw material of diamond synthesis, cementite is compared with graphite, and cementite is more near the adamantine raw material of final products.
For a long time, extensively adopt catalyst metal to add the graphite diamond synthesis both at home and abroad, in this process, though also can produce cementite, but along with growth of diamond, to produce a large amount of consumption to cementite, owing to due to physics, chemistry and the metallurgy environment in the reaction melt, be can not get replenishing by the used up cementite of growth of diamond, therefore, adamantine continuation forms and grows for want of cementite and stagnate, so the diamond grade of produced in conventional processes is low, granularity is little.
Summary of the invention
The present invention provides a kind of cost low for overcoming above-mentioned the deficiencies in the prior art, and production technology is simple, can ensure carbonizing-body diamond catalyst of the cementite that diamond film is required and preparation method thereof.
The objective of the invention is to adopt following technical proposals to realize: a kind of carbonizing-body diamond catalyst, each component by weight, cementite 38-75 part, iron 26-41 part, nickel 5-15 part, graphite 1-8.4 part.
Each component by weight, 48 parts of cementites, 40 parts of iron, 7 parts in nickel, 5 parts in graphite.
The preparation method of carbonizing-body diamond catalyst:
A. cementite powder, iron powder, nickel powder, graphite powder are mixed by aforementioned weight, moisture is removed in oven dry;
B. be sheet with mixed powder cold moudling under 620-750MPa pressure;
C. shaping, removing surface, remove crude removal.
The present invention adopts cementite, iron, nickel and graphite as the diamond synthesis catalyst, a large amount of cementites can be provided in building-up process, to replenish diamond used up cementite in growth course, be maintained thereby make diamond continue to form and grow, for acquisition high-grade, high yield, bulky diamond monocrystalline provide the material source.
Description of drawings
The diamond scanning mirror image pattern that accompanying drawing utilizes the present invention to produce as catalyst for embodiment 1.
The specific embodiment
Embodiment 1: each component by weight, 38 parts of cementites, 26 parts of iron, 5 parts in nickel, 1 part in graphite.
The preparation method:
A. cementite powder, iron powder, nickel powder, graphite powder are mixed by aforementioned weight, moisture is removed in oven dry;
B. be sheet with mixed powder cold moudling under 620MPa pressure;
C. shaping, removing surface, remove crude removal.
With the diamond of above-mentioned Catalyst Production as shown in drawings.
Embodiment 2: each component by weight, 48 parts of cementites, 40 parts of iron, 7 parts in nickel, 5 parts in graphite.
The preparation method:
A. cementite powder, iron powder, nickel powder, graphite powder are mixed by aforementioned weight, moisture is removed in oven dry;
B. be sheet with mixed powder cold moudling under 680MPa pressure;
C. shaping, removing surface, remove crude removal.
Embodiment 3: each component by weight, 56 parts of cementites, 35 parts of iron, 10 parts in nickel, 6 parts in graphite.
The preparation method:
A. cementite powder, iron powder, nickel powder, graphite powder are mixed by aforementioned weight, moisture is removed in oven dry;
B. be sheet with mixed powder cold moudling under 700MPa pressure;
C. shaping, removing surface, remove crude removal.
Embodiment 4: each component by weight, 75 parts of cementites, 41 parts of iron, 15 parts in nickel, 8.4 parts in graphite.
The preparation method:
A. cementite powder, iron powder, nickel powder, graphite powder are mixed by aforementioned weight, moisture is removed in oven dry;
B. be sheet with mixed powder cold moudling under 750MPa pressure;
C. shaping, removing surface, remove crude removal.
Claims (3)
1. carbonizing-body diamond catalyst is characterized in that: each component by weight, cementite 38-75 part, iron 26-41 part, nickel 5-15 part, graphite 1-8.4 part.
2. a kind of carbonizing-body diamond catalyst according to claim 1 is characterized in that: each component by weight, 48 parts of cementites, 40 parts of iron, 7 parts in nickel, 5 parts in graphite.
3. the preparation method of a kind of carbonizing-body diamond catalyst according to claim 1 and 2, it is characterized in that: A. mixes cementite powder, iron powder, nickel powder, graphite powder by aforementioned weight, and moisture is removed in oven dry;
B. be sheet with mixed powder cold moudling under 620-750MPa pressure;
C. shaping, removing surface, remove crude removal.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2007100132212A CN100396371C (en) | 2007-01-16 | 2007-01-16 | Carbonizing-body diamond catalyst and preparing method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2007100132212A CN100396371C (en) | 2007-01-16 | 2007-01-16 | Carbonizing-body diamond catalyst and preparing method |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101024156A CN101024156A (en) | 2007-08-29 |
CN100396371C true CN100396371C (en) | 2008-06-25 |
Family
ID=38742982
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2007100132212A Expired - Fee Related CN100396371C (en) | 2007-01-16 | 2007-01-16 | Carbonizing-body diamond catalyst and preparing method |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN100396371C (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104772144A (en) * | 2015-03-24 | 2015-07-15 | 河南黄河旋风股份有限公司 | Carbon fiber containing diamond catalyst powder and making method |
CN106270484B (en) * | 2016-08-18 | 2019-01-15 | 中南钻石有限公司 | A kind of diamond synthesis preparation method of graphite stem |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02233511A (en) * | 1989-03-08 | 1990-09-17 | Honda Motor Co Ltd | Production of diamond |
CN1109577C (en) * | 2000-01-31 | 2003-05-28 | 山东工业大学 | Iron-base alloy catalyst and its preparing method |
CN1182913C (en) * | 2003-01-14 | 2005-01-05 | 湖南三一新材料有限公司 | Ferrous-nickel base catalyst alloy for synthesizing artificial diamond |
WO2006129155A1 (en) * | 2005-05-31 | 2006-12-07 | Element Six (Production) (Pty) Ltd | Method of cladding diamond seeds |
-
2007
- 2007-01-16 CN CNB2007100132212A patent/CN100396371C/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02233511A (en) * | 1989-03-08 | 1990-09-17 | Honda Motor Co Ltd | Production of diamond |
CN1109577C (en) * | 2000-01-31 | 2003-05-28 | 山东工业大学 | Iron-base alloy catalyst and its preparing method |
CN1182913C (en) * | 2003-01-14 | 2005-01-05 | 湖南三一新材料有限公司 | Ferrous-nickel base catalyst alloy for synthesizing artificial diamond |
WO2006129155A1 (en) * | 2005-05-31 | 2006-12-07 | Element Six (Production) (Pty) Ltd | Method of cladding diamond seeds |
Non-Patent Citations (4)
Title |
---|
当前我国新触媒的研究和应用. 方啸虎,洪涌等.超硬材料与宝石(特辑),第15卷第4期. 2003 |
当前我国新触媒的研究和应用. 方啸虎,洪涌等.超硬材料与宝石(特辑),第15卷第4期. 2003 * |
渗碳体高温高压金刚石化的显微分析. 李洪岩,许斌,李木森等.金刚石与磨料磨具工程,第2期. 2006 |
渗碳体高温高压金刚石化的显微分析. 李洪岩,许斌,李木森等.金刚石与磨料磨具工程,第2期. 2006 * |
Also Published As
Publication number | Publication date |
---|---|
CN101024156A (en) | 2007-08-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101314483B (en) | Method for synthesizing alpha-Fe2O3 nano-particle with controllable shape size | |
WO2005022120A3 (en) | Process for producing nanocrystals and nanocrystals produced thereby | |
US10226756B2 (en) | Catalytic composition for synthesizing carbon nanotubes | |
CN110124691B (en) | Preparation method of pollen carbon framework supported growth rhenium disulfide photoelectric material | |
CN103214006B (en) | Preparation method of composite zeolite with core/shell structure | |
CN108383136B (en) | Preparation method of SSZ-13@ Nano SSZ-13 molecular sieve with core-shell structure | |
CN113070056B (en) | General synthesis method of three-dimensional ordered net-shaped tantalum pentoxide photocatalytic material | |
JP6890187B2 (en) | Catalyst for mass production of multiwalled carbon nanotubes | |
CN100396371C (en) | Carbonizing-body diamond catalyst and preparing method | |
CN110844900A (en) | Method for preparing carbon nano tube by taking waste tire as raw material | |
CN111252890B (en) | Carbon source-sulfur composite material for autotrophic denitrification and denitrification, preparation method and application | |
CN108264018A (en) | The method of the high power capacity storage hydrogen material of ferrum-based catalyst modification three-dimensional grapheme confinement | |
CN103566830B (en) | Synthesis method of octahedron diamond | |
CN106967476B (en) | A kind of preparation method of sheet line borate/poly-dopamine composite particles | |
CN102233251B (en) | Abrasive-level diamond nucleating agent | |
CN103285873B (en) | Accelerant for synthesizing polycrystalline diamonds and preparation method thereof | |
CN103801307B (en) | Precipitated iron catalyst used for Fischer-Tropsch synthesis and preparation method thereof | |
Wang et al. | Synthesis of monodisperse and high-purity α-Si3N4 powder by carbothermal reduction and nitridation | |
CN102580747A (en) | Composite catalyst for diamond synthesis and preparation method | |
CN108201893B (en) | FeSxThin film, hydrazinophenylene compound, and deposition method and preparation method thereof | |
CN101624289B (en) | Production method of macrocrystalline Cr3C2 ceramic powder | |
CN108579615A (en) | A kind of protokaryon implantation improves the synthesis technology of single-crystal diamond per unit area yield | |
CN1109577C (en) | Iron-base alloy catalyst and its preparing method | |
CN109957859B (en) | Silicon carbide fiber and preparation method thereof | |
CN101284671A (en) | Process for preparing L- molecular sieve membranes on different carriers |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080625 Termination date: 20120116 |