ES205320A1 - Un método de purificar germanio - Google Patents

Un método de purificar germanio

Info

Publication number
ES205320A1
ES205320A1 ES0205320A ES205320A ES205320A1 ES 205320 A1 ES205320 A1 ES 205320A1 ES 0205320 A ES0205320 A ES 0205320A ES 205320 A ES205320 A ES 205320A ES 205320 A1 ES205320 A1 ES 205320A1
Authority
ES
Spain
Prior art keywords
germanium
purifying
purifying germanium
temperature
vacuum
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
ES0205320A
Other languages
English (en)
Spanish (es)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of ES205320A1 publication Critical patent/ES205320A1/es
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B41/00—Obtaining germanium
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C1/00—Dental machines for boring or cutting ; General features of dental machines or apparatus, e.g. hand-piece design
    • A61C1/08—Machine parts specially adapted for dentistry
    • A61C1/14—Tool-holders, i.e. operating tool holders, e.g. burr holders
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C3/00—Dental tools or instruments
    • A61C3/06—Tooth grinding or polishing discs; Holders therefor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Manufacturing & Machinery (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Manufacture And Refinement Of Metals (AREA)
ES0205320A 1951-09-13 1952-09-10 Un método de purificar germanio Expired ES205320A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL163975 1951-09-13

Publications (1)

Publication Number Publication Date
ES205320A1 true ES205320A1 (es) 1952-11-01

Family

ID=19750532

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0205320A Expired ES205320A1 (es) 1951-09-13 1952-09-10 Un método de purificar germanio

Country Status (7)

Country Link
BE (1) BE514120A (OSRAM)
CH (1) CH311304A (OSRAM)
DE (1) DE976458C (OSRAM)
ES (1) ES205320A1 (OSRAM)
FR (2) FR1062839A (OSRAM)
GB (1) GB703606A (OSRAM)
NL (2) NL163975B (OSRAM)

Also Published As

Publication number Publication date
BE514120A (OSRAM)
FR1062839A (fr) 1954-04-27
NL163975B (nl)
GB703606A (en) 1954-02-03
NL83988C (OSRAM)
FR1062889A (fr) 1954-04-28
DE976458C (de) 1963-09-12
CH311304A (de) 1955-11-30

Similar Documents

Publication Publication Date Title
NL168882B (nl) Warmteregenerator.
ES205320A1 (es) Un método de purificar germanio
FR1082270A (fr) Procédé de crêpage
BE522096R (fr) PROCEDE DE PREPARATION DE DISPOSITIFS UTILISANT DES COUCHES DE TRANSITION ENTRE SEMI-CONDUCTEURS DES TYPES P. et N.
SU69255A2 (ru) Способ упаковки листового стекла
FR1101618A (fr) Nouvelles mérocyanines, procédé de préparation et applications
FR1035220A (fr) Biberon thermomètre
FR1052260A (fr) Procédé de lubrification en horlogerie, notamment des roues d'échappement
CH278282A (de) Gasflasche.
FR1073116A (fr) Procédé de préparation de fluoro-esters, fluoro-éthers et fluoro-acétals
FR1071038A (fr) Procédé de préparation d'hydrates de carbone par action bactériologique et enzymatique
CA481401A (en) Thermal treatment of adsorbents
GR13499B (el) Μεθοδος δια την ν - διχλωρακετυλιωσιν αριλαμινοαλκοολων.
CA479070A (en) Thermal treatment
CA479068A (en) Thermal treatment
ES195518A1 (es) UN PROCEDIMIENTO DE PREPARACIoN DE MONOALCOILPIPERAZINAS
CA487912A (en) Treatment of impurity-containing solutions
AU154778B2 (en) Improvements in or relating to amplifiers employing semiconductors
AU154673B2 (en) Improvements in or relating to amplifiers employing semiconductors
CA478457A (en) Heat engines
AU159443B2 (en) Improvements in or relating tothe production of unsaturated and saturated organic halogen compounds
BE522257A (fr) Procede de production de pyrrol et de pyrrols substitues en c et en n.
FR1017783A (fr) Nouvelle méthode de préparation du p.nitrophényl-1 dichloracétylamino-2 propanediol-1, 3
CA472027A (en) Thermal power plants
CA475381A (en) Methods of heat treating