GB1315778A - Synthesis of diamond - Google Patents

Synthesis of diamond

Info

Publication number
GB1315778A
GB1315778A GB3793871A GB3793871A GB1315778A GB 1315778 A GB1315778 A GB 1315778A GB 3793871 A GB3793871 A GB 3793871A GB 3793871 A GB3793871 A GB 3793871A GB 1315778 A GB1315778 A GB 1315778A
Authority
GB
United Kingdom
Prior art keywords
reactor
compounds
mixture
graphite
temperature
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
Application number
GB3793871A
Inventor
A A Shulzhenko
A F Getman
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.)
UK N I KONSTRUK TORSK T I SINT
Original Assignee
UK N I KONSTRUK TORSK T I SINT
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 UK N I KONSTRUK TORSK T I SINT filed Critical UK N I KONSTRUK TORSK T I SINT
Publication of GB1315778A publication Critical patent/GB1315778A/en
Expired 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
    • 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
    • B01J2203/00—Processes utilising sub- or super atmospheric pressure
    • B01J2203/06—High pressure synthesis
    • B01J2203/0605—Composition of the material to be processed
    • B01J2203/061—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
    • 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
    • B01J2203/068—Crystal growth

Abstract

1315778 Diamonds UKRAINSKY ORDENA TRUDOVOGO KRASNOGO ZNAMENI NAUCHNO - ISSLEDOVATELSKY KONSTRUKTORSKO - TEKHNOLOGICHESKY INSTITUT SINTETICHESKIKH SVERKHTVERDYKH MATERIALOV I INSTRUMENTA GOSPLANA UKRAINSKOI SSR 12 Aug 1971 [12 Aug 1970 17 Nov 1970(2)] 37938/71 Heading C1A Diamonds are made by subjecting carbon, preferably graphite, or a material capable of yielding free carbon under the reaction conditions, in contact with a compound of In, Tl, Ga, Ba, Be or an alkali metal to a temperature of at least 1800‹ C. and a pressure corresponding to this temperature within the range of diamond stability as defined in the graphite/diamond equilibrium system. The contact may arise by (1) forming a homogeneous mix of the carbon material and one or more of the compounds, (2) placing discs of the carbon material and of the compounds alternately in the reactor, or (3) disposing the compounds adjacent the ends of the reactor. Exemplified compounds in the form of a mix with graphite, preferably of spectral purity are Tl 2 O, Tl 2 CO 3 , In 2 O, Ga 2 O, a mixture of Tl 2 O and Tl 2 CO 3 , BaCO 3 , BeCO 3 , BeO, a mixture of BaO and BaCO 3 , LiO 2 , Li 2 CO 3 , Na 2 CO 3 , Na 2 O, K 2 CO 3 , K 2 O, a mixture of Li 2 O and Li 2 CO 3 , and Li 2 C 2 . The reaction is effected in conventional apparatus and the temperature in the reactor controlled by measuring changes in the electrical resistance of metals under pressure in the reactor.
GB3793871A 1970-08-12 1971-08-12 Synthesis of diamond Expired GB1315778A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SU1468619 1970-08-12
SU1486687 1970-11-17
SU1486689 1970-11-17

Publications (1)

Publication Number Publication Date
GB1315778A true GB1315778A (en) 1973-05-02

Family

ID=27356197

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3793871A Expired GB1315778A (en) 1970-08-12 1971-08-12 Synthesis of diamond

Country Status (8)

Country Link
BE (1) BE771233A (en)
CA (1) CA958309A (en)
CH (1) CH562162A5 (en)
DE (1) DE2140139C3 (en)
FR (1) FR2131189A5 (en)
GB (1) GB1315778A (en)
IE (1) IE35509B1 (en)
SE (1) SE377327B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100484871C (en) * 2002-11-15 2009-05-06 中国科学技术大学 Process for producing diamond, mixture of diamond and graphite
CN116239111A (en) * 2023-05-12 2023-06-09 北方工业大学 Method for low-pressure synthesis of PDC powder precursor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2721644C3 (en) * 1977-05-13 1981-11-05 Woermann, Eduard, Prof.Dr., 5100 Aachen Process for the synthesis of diamonds

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100484871C (en) * 2002-11-15 2009-05-06 中国科学技术大学 Process for producing diamond, mixture of diamond and graphite
CN116239111A (en) * 2023-05-12 2023-06-09 北方工业大学 Method for low-pressure synthesis of PDC powder precursor

Also Published As

Publication number Publication date
CH562162A5 (en) 1975-05-30
CA958309A (en) 1974-11-26
IE35509B1 (en) 1976-03-03
DE2140139B2 (en) 1978-02-09
DE2140139C3 (en) 1978-09-21
BE771233A (en) 1972-02-14
FR2131189A5 (en) 1972-11-10
IE35509L (en) 1972-02-12
DE2140139A1 (en) 1972-03-16
SE377327B (en) 1975-06-30

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee