GB519199A - Process for the manufacture of anhydrous metal flourides free from oxide - Google Patents

Process for the manufacture of anhydrous metal flourides free from oxide

Info

Publication number
GB519199A
GB519199A GB27123/38A GB2712338A GB519199A GB 519199 A GB519199 A GB 519199A GB 27123/38 A GB27123/38 A GB 27123/38A GB 2712338 A GB2712338 A GB 2712338A GB 519199 A GB519199 A GB 519199A
Authority
GB
United Kingdom
Prior art keywords
beryllium
fluoride
hydrofluoric acid
oxide
hydroxide
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
GB27123/38A
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.)
SERI HOLDING SA
Original Assignee
SERI HOLDING SA
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 SERI HOLDING SA filed Critical SERI HOLDING SA
Publication of GB519199A publication Critical patent/GB519199A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F3/00—Compounds of beryllium
    • C01F3/005—Fluorides or double fluorides of beryllium with alkali metals or ammonium; Preparation of beryllium compounds therefrom

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Abstract

519,199. Beryllium fluoride. SERI HOLDING SOC. ANON. Sept. 16, 1938, No. 27123. Convention date, Sept. 18, 1937. Addition to 496,773. [Class 1 (iii)] Anhydrous beryllium fluoride free from oxide is prepared by causing gaseous hydrofluoric acid to act on beryllium hydroxide at elevated temperature according to the process of the parent Specification, the beryllium hydroxide being fed continuously in counter flow to the hydrofluoric acid and the starting materials being so dry that the humidity of the hydrofluoric acid does not exceed 20 per cent. A diluent gas such as carbon dioxide or nitrogen may be employed. Mixtures of beryllium fluoride with other metal fluorides may be obtained by the addition of oxides, hydroxides or sulphides of the metals to the beryllium hydroxide. The Specification as open to inspection under Sect. 91 refers to the use of reaction vessels coated with fluorspar or with beryllium oxide, or if a mixture of another metal fluoride with beryllium fluoride is desired a vessel attachable by hydrofluoric acid to produce the desired fluoride may be used. There is also described an apparatus for carrying out the reaction comprising a tube through which beryllium hydroxide is moved by a helix in countercurrent to hydrofluoric acid, this tube being enclosed within a furnace flue having a helical partition. This subject-matter does not appear in the Specification as accepted.
GB27123/38A 1937-09-18 1938-09-16 Process for the manufacture of anhydrous metal flourides free from oxide Expired GB519199A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT519199X 1937-09-18

Publications (1)

Publication Number Publication Date
GB519199A true GB519199A (en) 1940-03-19

Family

ID=11275995

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27123/38A Expired GB519199A (en) 1937-09-18 1938-09-16 Process for the manufacture of anhydrous metal flourides free from oxide

Country Status (1)

Country Link
GB (1) GB519199A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109110789A (en) * 2018-09-25 2019-01-01 陆世强 A method of it preparing the method for beryllium fluoride and prepares ultra-high purity metal beryllium

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109110789A (en) * 2018-09-25 2019-01-01 陆世强 A method of it preparing the method for beryllium fluoride and prepares ultra-high purity metal beryllium

Similar Documents

Publication Publication Date Title
Watts et al. Sodium gluconate as complexing agent in volumetric analysis of aluminum compounds
GB519199A (en) Process for the manufacture of anhydrous metal flourides free from oxide
GB733712A (en) A process for the production of pulverulent metallic titanium
US2430963A (en) Manufacture of fluosulfonic acid
GB833452A (en) Method of eliminating sulphuretted hydrogen from gaseous mixtures
GB716063A (en) Improvements in or relating to process for making tetraethyllead
GB643824A (en) Recovery of fluosulphonic acid
Montgomery et al. The photochemical decomposition of phosgene
Browne et al. ON THE OXIDATION OF HYDRAZINE. I.
DE2308649A1 (en) Off-gas sampling - esp during pig iron refining with separation of flue dust
GB941537A (en) New complex compounds and processes useful in the production of nitrosyl fluoride
GB496773A (en) Process for the manufacture of anhydrous beryllium fluoride free from oxide
GB589292A (en) Improvements in and relating to the manufacture of formaldehyde
Kobe et al. Confining Liquids for Gas Analysis: Solubility of Common Gases in Acid Sodium Sulfate Solution
GB496658A (en) Process for the manufacture of fluoro-sulphonic acid
Bent THE ELECTRON AFFINITY OF FREE RADICALS. II. DIPHENYL-ALPHA-NAPHTHYLMETHYL, DIPHENYLBIPHENYL AND PHENYLBIPHENYL-ALPHA-NAPHTHYLMETHYL
GB417974A (en) An improved process for the decomposition of nitrosyl chloride
GB573575A (en) Improvements in or relating to the manufacture of ethylene oxide
GB1023102A (en) Process for production of nitrogen tetroxide
GB665404A (en) Improvements in production of nitrogen dioxide
ES471123A1 (en) Process for the preparation of chlorosulfonic acids.
Someno Reactions of Titanium and Zirconium with Oxygen, Air, Nitrogen and Carbon Dioxide
GB524531A (en) The manufacture of a mixture of nitric and sulphuric acids
Yee et al. Poisoning of Platinum Catalysts for Oxidation of Ammonia
Knecht Oxidation of cerium (III) to cerium (IV) using a mixture of hot concentrated perchloric and sulfuric acids