GB1300543A - Process for preparation of diamond - Google Patents

Process for preparation of diamond

Info

Publication number
GB1300543A
GB1300543A GB4637768A GB4637768A GB1300543A GB 1300543 A GB1300543 A GB 1300543A GB 4637768 A GB4637768 A GB 4637768A GB 4637768 A GB4637768 A GB 4637768A GB 1300543 A GB1300543 A GB 1300543A
Authority
GB
United Kingdom
Prior art keywords
diamond
reduction
preparation
dispersed
greenhalgh
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
GB4637768A
Inventor
Geoffrey Harvey Grenhalgh
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB4637768A priority Critical patent/GB1300543A/en
Publication of GB1300543A publication Critical patent/GB1300543A/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
    • B01J2203/065—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

Landscapes

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

Abstract

1300543 Diamond synthesis G H GREENHALGH 30 Dec 1969 [30 Sept 1968] 46377/68 Heading C1A Synthetic diamond is produced by reducing a carbon compound which is substantially free of hydrogen at 500-1500‹ K. and 20,000- 70,000 atmospheres. Reduction of hexachloro - ethane with sodium metal dispersed on NaCl and reduction of hexachlorobenzene with lithium dispersed on LiCl are exemplified.
GB4637768A 1968-09-30 1968-09-30 Process for preparation of diamond Expired GB1300543A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4637768A GB1300543A (en) 1968-09-30 1968-09-30 Process for preparation of diamond

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4637768A GB1300543A (en) 1968-09-30 1968-09-30 Process for preparation of diamond

Publications (1)

Publication Number Publication Date
GB1300543A true GB1300543A (en) 1972-12-20

Family

ID=10441005

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4637768A Expired GB1300543A (en) 1968-09-30 1968-09-30 Process for preparation of diamond

Country Status (1)

Country Link
GB (1) GB1300543A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1066417C (en) * 1997-11-05 2001-05-30 中国科学技术大学 Thermal reduction process of metal solvent to synthesize diamond and other material with similar structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1066417C (en) * 1997-11-05 2001-05-30 中国科学技术大学 Thermal reduction process of metal solvent to synthesize diamond and other material with similar structure

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years