GB237468A - Improvements in apparatus for recovering, or separating, caustic hydroxides from solutions containing them and for analogous purposes - Google Patents

Improvements in apparatus for recovering, or separating, caustic hydroxides from solutions containing them and for analogous purposes

Info

Publication number
GB237468A
GB237468A GB2529024A GB2529024A GB237468A GB 237468 A GB237468 A GB 237468A GB 2529024 A GB2529024 A GB 2529024A GB 2529024 A GB2529024 A GB 2529024A GB 237468 A GB237468 A GB 237468A
Authority
GB
United Kingdom
Prior art keywords
series
cell
open
compartments
flanges
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
GB2529024A
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.)
Akzo Nobel UK PLC
Original Assignee
American Viscose Corp
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 American Viscose Corp filed Critical American Viscose Corp
Priority to GB2529024A priority Critical patent/GB237468A/en
Publication of GB237468A publication Critical patent/GB237468A/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
    • C01D1/38—Purification; Separation by dialysis

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Urology & Nephrology (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Paper (AREA)

Abstract

237,468. Johnson, J. Y., (Viscosc Co.). Oct. 23, 1924. Waste products, treatment and utitization of. -Apparatus for the recovery of caustic alkali from " black liquor " from pulp mills comprises a series of compartments a containing a series of dialytic cells 20 through which the waste liquor is passed in the opposite direction to a flow of a solvent such as water through the series of compartments. As shown, a pipe 18 conveys the water from the bottom of one compartment to the upper part of the next, the inlet and outlet pipes being preferably at opposite ends of each compartment. A pipe 21 conducts impure solution from an open extension 22 above each cell, to the bottom of the next cell. The open extensions 22 are stated to compensate for the varying density of the solution. Each cell comprises an open frame having flanges to which the edges of the membranes are secured by frame-plates. Vertical bars also bolted to the flanges may provide feet and handles at their opposite ends. Sediment may be removed from the cells by suction pipes let down through the extension 22. Suitable membranes may be prepared by immersing cotton sheeting in sulphuric acid of sp. gr. 1.1 at a temperature below 30‹ C. for two minutes and removing the acid.
GB2529024A 1924-10-23 1924-10-23 Improvements in apparatus for recovering, or separating, caustic hydroxides from solutions containing them and for analogous purposes Expired GB237468A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2529024A GB237468A (en) 1924-10-23 1924-10-23 Improvements in apparatus for recovering, or separating, caustic hydroxides from solutions containing them and for analogous purposes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2529024A GB237468A (en) 1924-10-23 1924-10-23 Improvements in apparatus for recovering, or separating, caustic hydroxides from solutions containing them and for analogous purposes

Publications (1)

Publication Number Publication Date
GB237468A true GB237468A (en) 1925-07-30

Family

ID=10225309

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2529024A Expired GB237468A (en) 1924-10-23 1924-10-23 Improvements in apparatus for recovering, or separating, caustic hydroxides from solutions containing them and for analogous purposes

Country Status (1)

Country Link
GB (1) GB237468A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE749834C (en) * 1939-05-11 1944-12-06 Device for dialysis of milk juice

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE749834C (en) * 1939-05-11 1944-12-06 Device for dialysis of milk juice

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