GB474237A - Improvements in and relating to the production of active carbons from coal - Google Patents

Improvements in and relating to the production of active carbons from coal

Info

Publication number
GB474237A
GB474237A GB11889/36A GB1188936A GB474237A GB 474237 A GB474237 A GB 474237A GB 11889/36 A GB11889/36 A GB 11889/36A GB 1188936 A GB1188936 A GB 1188936A GB 474237 A GB474237 A GB 474237A
Authority
GB
United Kingdom
Prior art keywords
carbonization
coals
coal
inch
relating
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
GB11889/36A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB11889/36A priority Critical patent/GB474237A/en
Publication of GB474237A publication Critical patent/GB474237A/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
    • C01B32/312—Preparation
    • C01B32/336—Preparation characterised by gaseous activating agents

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)

Abstract

Active carbon is obtained by subjecting dull hard coals, or durains, rich in plant remains which possess slight to medium caking power but insufficient to develop a plastic condition at the temperature of carbonization, to carbonization at temperatures below 600 DEG C., preferably between 450 and 500 DEG C., followed by activation with steam at temperatures up to 1000 DEG C., until its weight is considerably reduced, e.g. by 70 to 80 per cent. Such coal preserves its original form during carbonization. Coals of high caking power are suitably treated before carbonization, e.g. by oxidation with hot gases or agents such as ferric chloride or by extraction with solvents. The coals are preferably treated in sized lumps, e.g. from \ba1/4\be inch to 1\ba1/4\be inch, but they may be powdered and briquetted.
GB11889/36A 1936-04-27 1936-04-27 Improvements in and relating to the production of active carbons from coal Expired GB474237A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB11889/36A GB474237A (en) 1936-04-27 1936-04-27 Improvements in and relating to the production of active carbons from coal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB11889/36A GB474237A (en) 1936-04-27 1936-04-27 Improvements in and relating to the production of active carbons from coal

Publications (1)

Publication Number Publication Date
GB474237A true GB474237A (en) 1937-10-27

Family

ID=9994516

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11889/36A Expired GB474237A (en) 1936-04-27 1936-04-27 Improvements in and relating to the production of active carbons from coal

Country Status (1)

Country Link
GB (1) GB474237A (en)

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