EP1301267A2 - Procede de production de substances diamantines et utilisations desdites substances - Google Patents

Procede de production de substances diamantines et utilisations desdites substances

Info

Publication number
EP1301267A2
EP1301267A2 EP01957717A EP01957717A EP1301267A2 EP 1301267 A2 EP1301267 A2 EP 1301267A2 EP 01957717 A EP01957717 A EP 01957717A EP 01957717 A EP01957717 A EP 01957717A EP 1301267 A2 EP1301267 A2 EP 1301267A2
Authority
EP
European Patent Office
Prior art keywords
diamond
substance
mixture
reaction products
sintering
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.)
Withdrawn
Application number
EP01957717A
Other languages
German (de)
English (en)
Inventor
Volodymyr Padalko
Kostyantyn Kirilin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Carbo-Get GmbH
Original Assignee
Carbo-Get GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Carbo-Get GmbH filed Critical Carbo-Get GmbH
Publication of EP1301267A2 publication Critical patent/EP1301267A2/fr
Withdrawn legal-status Critical Current

Links

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
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
    • 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
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • 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
    • B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
    • B01J3/06—Processes using ultra-high pressure, e.g. for the formation of diamonds; Apparatus therefor, e.g. moulds or dies
    • B01J3/062—Processes using ultra-high pressure, e.g. for the formation of diamonds; Apparatus therefor, e.g. moulds or dies characterised by the composition of the materials to be processed
    • 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
    • B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
    • B01J3/06—Processes using ultra-high pressure, e.g. for the formation of diamonds; Apparatus therefor, e.g. moulds or dies
    • B01J3/08—Application of shock waves for chemical reactions or for modifying the crystal structure of substances
    • 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
    • B01J2203/00—Processes utilising sub- or super atmospheric pressure
    • B01J2203/06—High pressure synthesis
    • B01J2203/0605—Composition of the material to be processed
    • B01J2203/062—Diamond
    • 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
    • B01J2203/00—Processes utilising sub- or super atmospheric pressure
    • B01J2203/06—High pressure synthesis
    • B01J2203/0605—Composition of the material to be processed
    • B01J2203/0625—Carbon
    • 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
    • B01J2203/00—Processes utilising sub- or super atmospheric pressure
    • B01J2203/06—High pressure synthesis
    • B01J2203/065—Composition of the material produced
    • B01J2203/0655—Diamond
    • 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
    • B01J2203/00—Processes utilising sub- or super atmospheric pressure
    • B01J2203/06—High pressure synthesis
    • B01J2203/0675—Structural or physico-chemical features of the materials processed
    • B01J2203/0685—Crystal sintering

Definitions

  • the invention relates to processes for producing diamond-like substances, various diamond-like substances and uses of such diamond-like substances.
  • the diamond phase of the carbon is a compact spheroid with a diameter of about 7 nm.
  • Metric analyzes provided the following reflection values in the intermediate levels:
  • AI diamond-containing substances consist of carbon, hydrogen, nitrogen, oxygen and non-combustible admixtures.
  • the mass ratio in mass% of the carbon in cubic modification is preferably 30.0 to 75.0 for these diamond-containing substances, while the X-ray amorphous carbon phase is 10.0 to 15.0.
  • the object of the present invention is to provide improved processes for the production of such diamond-like substances as well as new diamond-like substances and new uses of such substances.
  • This object is achieved with a method for producing diamond-like substances, in which a mixture with carbon, oxygen, hydrogen, Nitrogen and non-combustible admixtures are treated by detonative reactions of explosives with negative oxygen balance in a closed volume in an inert gas atmosphere and the reaction products are cooled and cleaned and sintered at pressures of 4 to 12 Gpa and temperatures of 1000 to 3000 ° C.
  • the process described results in diamond-like substances with different characteristics which are advantageous for the most varied of uses.
  • the resulting material is a powder with a dark gray color.
  • the starting mixture preferably has 86 to 96% by mass of carbon, 1 to 6% by mass of oxygen, 0.1 to 1% by mass of hydrogen, 0.5 to 2% by mass of nitrogen and up to 2% by mass of additives.
  • the reaction products are chemically cleaned before sintering. Depending on the application, the reaction products are crushed after sintering. It is advantageous if, after comminution, the particles have dimensions in the micrometer range and the reaction products are chemically cleaned again after sintering. Ultimately, the reaction products can be classified into divided grain sizes.
  • the object on which the invention is based is also achieved with a diamond-like substance which has at least 85% a polycrystalline structure.
  • the object is achieved with such a diamond-like substance, preferably produced by the method according to the invention, which has a porous structure and preferably a specific weight of less than 3 g / cm 3 .
  • a diamond-like substance has pore dimensions of 12 to 100 A.
  • the material particles have rounded shapes, on the surface of which open pores are localized.
  • the dimensions of the pores were determined by BET.
  • the specific weight is 2.3 to 3 g / cm 3 , which corresponds to the value of 65 to 85% of the specific weight of diamond.
  • microelectronograms of a material according to the invention differ from those of the ultradisperse diamond system produced in the detonation synthesis by a broadened line (111), but also by the presence of well-developed local reflections, which means that the sintering process takes place by means of partial recrystallization. to which isolated graphite phases refer.
  • the outstanding properties of the diamond material include the extraordinarily high values of the specific surface, which are in an interval of 50 to 200 m 2 / g.
  • the specific surface values e.g. B. a diamond powder (grain size 0 to 1 micron) from the classic static synthesis are in comparison about 13.5 m 2 / g.
  • These values of the specific surface are based on special surface reliefs of the individual particles, the pronounced porosity and the maintenance of an active hyperstructure on which functional groups are attached, which are characteristic of the starting product of the detonation systems.
  • the particle size of the diamond-like substance is preferably in the interval between 1 and 100 microns.
  • diamond particles with grain sizes of up to 100 ⁇ m were obtained. It is therefore advantageous if the grain sizes are between 20 and 100 ⁇ m.
  • the X-ray phase analysis fixes a single phase peak, the cubic modification of the carbon (diamond).
  • the elementary analysis of the polycrystalline diamond system produced shows the following values in mass%: carbon 89-96, oxygen 1 to 6, hydrogen 0.1 to 1.0, nitrogen 0.5 to 2.0 and non-combustible admixtures up to 2, 0th
  • the elementary inventory also contains traces of metal components such as Ti, Cr, Mn, Fe, Ni, W, K, Ca and non-metals such as P and S.
  • the IR spectral analyzes carried out show the addition of carboxyl, Carbonyl and hydroxyl groups on the surface.
  • the particles of the polycrystalline diamond material When used for surface processing, the particles of the polycrystalline diamond material have a lateral spallation mechanism (micro-crack formation) as well as a multitude of direction-independent cutting edges with minimal cutting edges, which have the same strength, hardness and pressure resistance in all directions.
  • the particles are self-sharpened during the polishing process, since only tiny microcrystallites split off when exposed, which expose further cutting edges. In this way, ultra-precise machining of hard and superhard materials is possible. Therefore, the use of such a material for surface treatment of materials, in particular for polishing, is proposed.
  • the hyperstructured surface and the presence of internal surfaces which can take values of up to 450 J / g for a material fraction from 0 to 1 ⁇ m, allow use in the form of active filters or sorbents.
  • the use of a diamond-like substance for cleaning liquids or gases is therefore proposed.
  • a particularly advantageous use of diamond-like substances according to WO 00/78674 AI or the present application lies in the use of this material as a component of composite materials, in particular in the addition to rubber mixtures.
  • such diamond-like substances are suitable for improving the physical-mechanical properties of rubber compounds.
  • diamond-containing substances produced in this way show the following particle structure: In the center of the particle, a diamond core is positioned, around which a X-ray amorphous carbon phase is grouped passes into the crystalline carbon phase. There are chemical residual groups on the surface of the crystalline carbon phase. The relationships between the individual phases of carbon and the chemical groups on the surface created by the rapid cooling enable this material to be used as a component of highly effective composite materials, especially as an additive to improve the physico-mechanical and other applications - characteristics of rubber compounds.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

L'invention concerne un procédé de production de substances diamantines, selon lequel un mélange de carbone, d'oxygène, d'hydrogène, d'oxyde d'azote et d'additifs ininflammables est traité par mise en réaction explosive de substances explosives à bilan d'oxygène négatif dans un volume fermé et en atmosphère inerte. Les produits de la réaction sont ensuite refroidis, purifiés puis frittés à des pressions de 4 à 12 Gpa et à des températures comprises entre 1000 DEG C et 3000 DEG C. On obtient ainsi une substance diamantine polycristalline convenant, entre autres, au traitement de surface, à la purification de fluides et à l'absorption de fréquences radio.
EP01957717A 2000-07-21 2001-07-20 Procede de production de substances diamantines et utilisations desdites substances Withdrawn EP1301267A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
UA2000074416 2000-07-21
UA00074416 2000-07-21
PCT/DE2001/002661 WO2002007871A2 (fr) 2000-07-21 2001-07-20 Procede de production de substances diamantines et utilisations desdites substances

Publications (1)

Publication Number Publication Date
EP1301267A2 true EP1301267A2 (fr) 2003-04-16

Family

ID=34390991

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01957717A Withdrawn EP1301267A2 (fr) 2000-07-21 2001-07-20 Procede de production de substances diamantines et utilisations desdites substances

Country Status (4)

Country Link
EP (1) EP1301267A2 (fr)
AU (1) AU2001279564A1 (fr)
DE (1) DE10192906D2 (fr)
WO (1) WO2002007871A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109806811A (zh) * 2019-03-25 2019-05-28 河南省力量钻石股份有限公司 一种八面体金刚石合成用复合衬管及其制备方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7378468B2 (en) * 2003-11-07 2008-05-27 The Goodyear Tire & Rubber Company Tire having component of rubber composition containing a carbonaceous filler composite of disturbed crystalline phrases and amorphous carbon phases
JP5553991B2 (ja) * 2005-12-30 2014-07-23 フェデラルノエ ゴスダールストヴェンノエ ウチレゼデニエ“フェデラルノエ アゲンツトヴォ ポ プラヴォヴォイ ザシテ レズルタトフ インテレクチュアルノイ デヤテルノスティ ヴォエンノゴ，スペツィアルノゴ イ ドヴォイノゴ ナズナチェニヤ”プリ ミニステルストヴェ ユシティツィイ ロシイスコイ フェデラツィイ ナノダイヤモンド及びその製造方法
TWI632024B (zh) * 2012-09-29 2018-08-11 戴蒙創新公司 在硏磨期間具有微破裂特徵之單晶ｃｂｎ

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3816085A (en) * 1971-01-29 1974-06-11 Megadiamond Corp Diamond-nondiamond carbon polycrystalline composites
CH650999A5 (en) * 1980-07-31 1985-08-30 Inst Khim Fiz An Sssr Process for preparing diamond and/or diamond-like modifications of boron nitride
RU2051092C1 (ru) * 1991-12-25 1995-12-27 Научно-производственное объединение "Алтай" Алмазсодержащее вещество и способ его получения
RU2041165C1 (ru) * 1993-02-12 1995-08-09 Научно-производственное объединение "Алтай" Алмазоуглеродное вещество и способ его получения

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0207871A3 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109806811A (zh) * 2019-03-25 2019-05-28 河南省力量钻石股份有限公司 一种八面体金刚石合成用复合衬管及其制备方法

Also Published As

Publication number Publication date
WO2002007871A3 (fr) 2002-09-12
DE10192906D2 (de) 2002-10-10
WO2002007871A2 (fr) 2002-01-31
AU2001279564A1 (en) 2002-02-05

Similar Documents

Publication Publication Date Title
DE69212820T2 (de) Synthetischen diamant enthaltendes material sowie verfahren zu seiner herstellung
DE112005003808B4 (de) Nanodiamant und Verfahren zu seiner Herstellung
AT389884B (de) Verfahren zur herstellung eines gesinterten schleifmaterials auf der basis von alpha-al2o3
DE69530161T2 (de) Diamant-Einkristall mit niedriger Fehlerdichte und Verfahren zu dessen Herstellung
DE69208329T2 (de) Verfahren zur Herstellung von Metallcarbiden mit erhöhter spezifischer Oberfläche aus aktivierten Kohleschaumstoffen
DE69113966T2 (de) Verbundpulver aus aluminiumoxyd/metall, cermets daraus und verfahren zu ihrer herstellung.
EP0518106B1 (fr) Oxydes d'aluminium de transition, en partie cristallines, procédé de leur préparations et utilisation pour obtenir des objets moulés qui contiennent principalement de l'alumine gamma
DE102014111329A1 (de) Verfahren zur Herstellung von hochwertigen Aktivkohlen sowie nach dem Verfahren hergestellte Aktivkohlen
CH436096A (de) Verbundstoffkörper und Verfahren zu seiner Herstellung
EP0042130A1 (fr) Corps façonné en céramique contenant des constituants de structure eutectique et procédé pour sa préparation
CH459159A (de) Katalysator zum Reformieren von Kohlenwasserstoffen, Verfahren zu dessen Herstellung und Verwendung des Katalysators
WO2007121931A2 (fr) Procédé de production d'un corps en métal dur, poudre servant à la production d'un métal dur et corps en métal dur
EP3374129B1 (fr) Élément abrasif céramique fritté, polycristallin, de forme plate et d'une certaine structure géométrique, procédé de fabrication dudit élément et son utilisation
DE3347676C2 (fr)
DE1218415B (de) Verfahren zur Herstellung gebundener kristalliner Metallaluminosilicat-Zeolithe
DE68921246T2 (de) Gesinterte, oberflächenveredelte Legierung mit und ohne Hartbeschichtung sowie Verfahren zur Herstellung der Legierung.
EP0126425A2 (fr) Catalyseur à base d'oxyde de fer et d'oxyde de chrome pour la conversion de CO à haute température
DE949884C (de) Verfahren zur Herstellung von Glasskelett-Katalysatoren in Form gesinterter Aggregrate
EP0630288A1 (fr) Support de catalyseur resistant a l'abrasion.
EP0659507B1 (fr) Poudre métallique de cobalt ainsi que produit composite fritte obtenu avec cette poudre
EP1301267A2 (fr) Procede de production de substances diamantines et utilisations desdites substances
DE2700208A1 (de) Polykristalliner siliziumnitrid- koerper und verfahren zu dessen herstellung
DE69427325T2 (de) Verfahren zur Erhöhung der Festigkeit von künstlichen Diamanten
DE2056075A1 (de) Warmgepresste, feste Losung und ihre Herstellung
DE19721082A1 (de) Verfahren zur Herstellung von kubischem Bornitrid

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20030121

AK Designated contracting states

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

RIC1 Information provided on ipc code assigned before grant

Ipc: 7B 01J 3/08 B

Ipc: 7B 01J 3/06 A

17Q First examination report despatched

Effective date: 20040618

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20041029