Patent · US Active

Method for the production of diamond

US8685360B2 · kind B2 · utility

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4Claims
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Key dates

Filing dateFeb 7, 2008
Grant dateApr 1, 2014
Priority date
Expiry dateJul 12, 2031

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB01J2219/1281
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

This invention is to provide a method for the production of diamond at a high rate and in a high efficiency using in-liquid plasma. The present invention is a method for the production of diamond using electromagnetic waves irradiated to a liquid containing carbon, hydrogen and oxygen in which the ratio of hydrogen atoms to the sum of carbon atoms and hydrogen atoms is from 0.75 to 0.82 and the ratio of carbon atoms to the sum of carbon atoms and oxygen atoms is from 0.47 to 0.58 so as to generate plasma in the liquid.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.