FR938492A - Process for the preparation of synthetic gemstones - Google Patents

Process for the preparation of synthetic gemstones

Info

Publication number
FR938492A
FR938492A FR938492DA FR938492A FR 938492 A FR938492 A FR 938492A FR 938492D A FR938492D A FR 938492DA FR 938492 A FR938492 A FR 938492A
Authority
FR
France
Prior art keywords
preparation
synthetic gemstones
gemstones
synthetic
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
Other languages
French (fr)
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.)
Linde Air Products Co
Original Assignee
Linde Air Products Co
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 Linde Air Products Co filed Critical Linde Air Products Co
Application granted granted Critical
Publication of FR938492A publication Critical patent/FR938492A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B11/00—Single-crystal growth by normal freezing or freezing under temperature gradient, e.g. Bridgman-Stockbarger method
    • C30B11/04—Single-crystal growth by normal freezing or freezing under temperature gradient, e.g. Bridgman-Stockbarger method adding crystallising materials or reactants forming it in situ to the melt
    • C30B11/08—Single-crystal growth by normal freezing or freezing under temperature gradient, e.g. Bridgman-Stockbarger method adding crystallising materials or reactants forming it in situ to the melt every component of the crystal composition being added during the crystallisation
    • C30B11/10—Solid or liquid components, e.g. Verneuil method

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
FR938492D 1943-09-21 1946-12-09 Process for the preparation of synthetic gemstones Expired FR938492A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US938492XA 1943-09-21 1943-09-21

Publications (1)

Publication Number Publication Date
FR938492A true FR938492A (en) 1948-09-16

Family

ID=22241181

Family Applications (1)

Application Number Title Priority Date Filing Date
FR938492D Expired FR938492A (en) 1943-09-21 1946-12-09 Process for the preparation of synthetic gemstones

Country Status (1)

Country Link
FR (1) FR938492A (en)

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