GB191201573A - Improvements in the Purification of Caustic Alkali Solutions. - Google Patents

Improvements in the Purification of Caustic Alkali Solutions.

Info

Publication number
GB191201573A
GB191201573A GB191201573DA GB191201573A GB 191201573 A GB191201573 A GB 191201573A GB 191201573D A GB191201573D A GB 191201573DA GB 191201573 A GB191201573 A GB 191201573A
Authority
GB
United Kingdom
Prior art keywords
copper
alkali
caustic alkali
purification
salt
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
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.)
Soie Artificielle SA Francaise
Original Assignee
Soie Artificielle SA Francaise
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 Soie Artificielle SA Francaise filed Critical Soie Artificielle SA Francaise
Application granted granted Critical
Publication of GB191201573A publication Critical patent/GB191201573A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
    • C01D1/00—Oxides or hydroxides of sodium, potassium or alkali metals in general
    • C01D1/04—Hydroxides
    • C01D1/28—Purification; Separation
    • C01D1/32—Purification; Separation by absorption or precipitation
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G3/00—Compounds of copper

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)

Abstract

1573. La Soie Artificielle Soc. Anon. Francaise. Dec. 23, 1911, [Convention date]. Alkali hydrates.-Impure caustic alkali lyes, such as have been used for treating cotton or wood-pulp and contain as impurities soluble cellulose products, are rendered pure by the addition of a salt or compound of copper or other heavy metal, which precipitates the impurities. The compound used may be an alkali solution of copper hydrate, an ammoniacal solution of copper sulphate, or an aqueous solution of copper sulphate or other salt of copper.
GB191201573D 1911-12-23 1912-01-19 Improvements in the Purification of Caustic Alkali Solutions. Expired GB191201573A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR449457T 1911-12-23

Publications (1)

Publication Number Publication Date
GB191201573A true GB191201573A (en) 1912-03-21

Family

ID=1489977

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191201573D Expired GB191201573A (en) 1911-12-23 1912-01-19 Improvements in the Purification of Caustic Alkali Solutions.

Country Status (4)

Country Link
AT (1) AT62640B (en)
FR (1) FR449457A (en)
GB (1) GB191201573A (en)
NL (1) NL110C (en)

Also Published As

Publication number Publication date
FR449457A (en) 1913-02-27
NL110C (en) 1914-01-15
AT62640B (en) 1913-12-27

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