GB934695A - Absorbent regeneration - Google Patents

Absorbent regeneration

Info

Publication number
GB934695A
GB934695A GB20018/59A GB2001859A GB934695A GB 934695 A GB934695 A GB 934695A GB 20018/59 A GB20018/59 A GB 20018/59A GB 2001859 A GB2001859 A GB 2001859A GB 934695 A GB934695 A GB 934695A
Authority
GB
United Kingdom
Prior art keywords
solution
sulphuric acid
regenerated
aqueous
caustic soda
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
GB20018/59A
Inventor
Clifford George Childs
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.)
Carbonisation et Charbons Actifs CECA SA
Original Assignee
Carbonisation et Charbons Actifs CECA 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 Carbonisation et Charbons Actifs CECA SA filed Critical Carbonisation et Charbons Actifs CECA SA
Priority to GB20018/59A priority Critical patent/GB934695A/en
Publication of GB934695A publication Critical patent/GB934695A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/30—Active carbon
    • C01B32/354—After-treatment
    • C01B32/36—Reactivation or regeneration

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Water Treatment By Sorption (AREA)

Abstract

Active carbon used for decolourizing is regenerated by contact with an aqueous solution of sulphuric acid, e.g. a solution containing over 70% by weight of sulphuric acid. The carbon also may be washed with aqueous solutions of alkali, e.g. a 2 to 4% solution of caustic soda, or a solution of ammonia or an alkali metal carbonate, before or after washing with sulphuric acid solution. In examples active carbon used to decolourize crude aqueous lactic acid solutions is regenerated with sulphuric acid solution alone and with caustic soda solution. Specification 907,321 is referred to.
GB20018/59A 1959-06-11 1959-06-11 Absorbent regeneration Expired GB934695A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB20018/59A GB934695A (en) 1959-06-11 1959-06-11 Absorbent regeneration

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB20018/59A GB934695A (en) 1959-06-11 1959-06-11 Absorbent regeneration

Publications (1)

Publication Number Publication Date
GB934695A true GB934695A (en) 1963-08-21

Family

ID=10138987

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20018/59A Expired GB934695A (en) 1959-06-11 1959-06-11 Absorbent regeneration

Country Status (1)

Country Link
GB (1) GB934695A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0004807A2 (en) * 1978-03-30 1979-10-17 Calgon Corporation Regeneration of carbon employed in the wet process production of phosphoric acid
WO2002090311A1 (en) * 2001-05-09 2002-11-14 Purac Biochem B.V. Process for the removal of undesired flavour and odour components from potassium lactate

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0004807A2 (en) * 1978-03-30 1979-10-17 Calgon Corporation Regeneration of carbon employed in the wet process production of phosphoric acid
EP0004807A3 (en) * 1978-03-30 1979-10-31 Calgon Corporation Activated carbon and process for regenerating it after use in the wet process production of phosphoric acid or alkali metal phosphates
WO2002090311A1 (en) * 2001-05-09 2002-11-14 Purac Biochem B.V. Process for the removal of undesired flavour and odour components from potassium lactate
CN100404492C (en) * 2001-05-09 2008-07-23 普拉克生化公司 Process for the remove of undesired flavour and odour components from potassium lactate
US7588790B2 (en) 2001-05-09 2009-09-15 Purac Biochem B.V. Process for the removal of undesired flavour and odour components from potassium lactate

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