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1311641 Synthetic diamonds UKRAINSKY ORDENA TRUDOVOGO KRASNOGO ZNAMENI NAUCHNO - ISSLEDOVATELSKY KONSTRUKTORSKO TEKHNOLOGICHESKY INSTITUT SINTETICHESKIKH SVERKHTVERDYKH MATERIALOV I INSTRUMENTA GOSPLANA UKRAINSKOI SSR 6 Jan 1971 [19 Jan 1970] 649/71 Heading C1A In preparing diamond, a material which...

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Hauptverfasser:	KATSEI MARGARITA YAKOVLEVNA, SHULZHENKO ALEXANDR ALEXANDROVICH, PRIKHNA ALEXEI IOSIFOVICH
Format:	Patent
Sprache:	ger
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING
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Zusammenfassung:	1311641 Synthetic diamonds UKRAINSKY ORDENA TRUDOVOGO KRASNOGO ZNAMENI NAUCHNO - ISSLEDOVATELSKY KONSTRUKTORSKO TEKHNOLOGICHESKY INSTITUT SINTETICHESKIKH SVERKHTVERDYKH MATERIALOV I INSTRUMENTA GOSPLANA UKRAINSKOI SSR 6 Jan 1971 [19 Jan 1970] 649/71 Heading C1A In preparing diamond, a material which yields free carbon under the conditions used, e.g. graphite, is heated to a temp. not less than 1150C. under a pressure not less than 40 R bars in the presence of a catalyst consisting of a metal having graphite crystallites dispersed therein. The metal may be an alloy, and may be Mn and/or Mi, or Co, FeCr, Ta, Ru, Rh, Pd, Os, Ir, Pt or alloy thereof. The catalyst may be produced by the controlled cooling of a melt of the metal which is saturated with carbon.