GB837268A - Improvements in or relating to the purification of sodium - Google Patents

Improvements in or relating to the purification of sodium

Info

Publication number
GB837268A
GB837268A GB2801958A GB2801958A GB837268A GB 837268 A GB837268 A GB 837268A GB 2801958 A GB2801958 A GB 2801958A GB 2801958 A GB2801958 A GB 2801958A GB 837268 A GB837268 A GB 837268A
Authority
GB
United Kingdom
Prior art keywords
sodium
gas
calcium
oxygen
volume
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
GB2801958A
Inventor
David Frederick Altimier
Charles Harold Lemke
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and 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 EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Priority to GB2801958A priority Critical patent/GB837268A/en
Publication of GB837268A publication Critical patent/GB837268A/en
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
    • C22B26/00—Obtaining alkali, alkaline earth metals or magnesium
    • C22B26/10—Obtaining alkali metals

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Gas Separation By Absorption (AREA)

Abstract

Sodium is treated to remove any residual calcium content by intimately mixing a gas mixture with molten sodium at a temperature below 300 DEG C., the gas mixture containing at least 98% by volume of an inert gas such as nitrogen and 2% or less by volume of oxygen. The gas mixture, the volume of which is preferably at least 20 times that of the sodium treated, may be introduced into the melt by bubbling or by means of a turbomixer. The gas may be continuously recirculated and replenished with an oxygen-containing gas such as air to maintain the concentration of oxygen. Calcium is then separated by allowing the melt to settle or by filtration. The process is effective in removing calcium from sodium containing up to 1,000 parts per million of calcium.
GB2801958A 1958-09-01 1958-09-01 Improvements in or relating to the purification of sodium Expired GB837268A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2801958A GB837268A (en) 1958-09-01 1958-09-01 Improvements in or relating to the purification of sodium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2801958A GB837268A (en) 1958-09-01 1958-09-01 Improvements in or relating to the purification of sodium

Publications (1)

Publication Number Publication Date
GB837268A true GB837268A (en) 1960-06-09

Family

ID=10268960

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2801958A Expired GB837268A (en) 1958-09-01 1958-09-01 Improvements in or relating to the purification of sodium

Country Status (1)

Country Link
GB (1) GB837268A (en)

Similar Documents

Publication Publication Date Title
GB1348399A (en) Process for treating molten aluminum
GB1521166A (en) Process for the treatment of water with ozone
GB1103329A (en) Refining of silicon
GB1033235A (en) A process for the production of gases containing sulphur dioxide
GB1515971A (en) Growing silicon crystals
US1989004A (en) Purification of gases
IN160952B (en)
GB837268A (en) Improvements in or relating to the purification of sodium
GB903682A (en) An improved method for the manufacture of chlorine by the oxidation of hydrochloric acid
GB1119958A (en) Process for the preparation of hydroperoxides
GB1284249A (en) Purification of spent sulphuric acid
GB1370678A (en) Process for the removal of oxidisable gases from a gas stream
GB1251925A (en)
GB1255005A (en) Improvements in or relating to the treatment of fibrous carbon
GB1072897A (en) A process for the purification of aluminium
GB876494A (en) Process for separating acetylene from gaseous mixtures containing it
GB915510A (en) Improvements in or relating to the production of trialkyladipic acids
GB1370552A (en) Process for treating sulphuric acid sludge
DE3070731D1 (en) Process and apparatus for continuous elimination of nitrogen oxides from nitrous gases
JPS5644091A (en) Treating method of hydrazine content waste fluid
FR2264770A1 (en) Purifying hydrochloric acid contaminated with organic matter - by inert gas blowing opt. followed by absorption on active carbon
GB771411A (en) Method of purifying raw materials containing alumina
GB790987A (en) A process for separating benzene hydrocarbons and naphthalene from gases containing the same
GB849138A (en) Process for stabilizing and refining tung oil and product thereof
GB1027601A (en) Method and apparatus for producing steel from pig iron