GB434461A - Improvements relating to the manufacture of activated carbon - Google Patents

Improvements relating to the manufacture of activated carbon

Info

Publication number
GB434461A
GB434461A GB1900/35A GB190035A GB434461A GB 434461 A GB434461 A GB 434461A GB 1900/35 A GB1900/35 A GB 1900/35A GB 190035 A GB190035 A GB 190035A GB 434461 A GB434461 A GB 434461A
Authority
GB
United Kingdom
Prior art keywords
heating
temperature
agents
activating
acid
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
GB1900/35A
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.)
FRANZ KRCZIL
Original Assignee
FRANZ KRCZIL
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 FRANZ KRCZIL filed Critical FRANZ KRCZIL
Priority to GB1900/35A priority Critical patent/GB434461A/en
Publication of GB434461A publication Critical patent/GB434461A/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
    • C01B32/384—Granulation
    • 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
    • C01B32/382—Making shaped products, e.g. fibres, spheres, membranes or foam

Abstract

Active carbon in moulded form is obtained by treating organic material, e.g. sawdust, peat or lignite, preferably powdered, with known activating or carbonizing agents, such as zinc chloride or phosphoric acid in the case of chemical activation or dilute sulphuric acid in the case of gas activation and heating it to a temperature between 100 and 200 DEG C. while stirring, until the carbonized mass assumes a kneadable and plastic form when it is moulded under pressure, and baked till hard, preferably in the presence of oxygen, at a gradually increasing temperature so that the shapes do not sinter or melt. The material is then gas activated at high temperature or activated by heating to a temperature of 450 to 600 DEG C. The die of the moulding press is preferably heated to about 100 DEG C. to avoid interrupton of the heat treatment. Excess activating agent may be washed out with water or acid. If desired, the moulding process may be assisted by the addition of known binding agents, preferably during the heating and mixing process and when the mixture has attained some degree of plasticity. Activating agents may also be added at this stage.
GB1900/35A 1935-01-21 1935-01-21 Improvements relating to the manufacture of activated carbon Expired GB434461A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1900/35A GB434461A (en) 1935-01-21 1935-01-21 Improvements relating to the manufacture of activated carbon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1900/35A GB434461A (en) 1935-01-21 1935-01-21 Improvements relating to the manufacture of activated carbon

Publications (1)

Publication Number Publication Date
GB434461A true GB434461A (en) 1935-09-02

Family

ID=9729999

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1900/35A Expired GB434461A (en) 1935-01-21 1935-01-21 Improvements relating to the manufacture of activated carbon

Country Status (1)

Country Link
GB (1) GB434461A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2221404A1 (en) * 1973-03-13 1974-10-11 Naomi Kk High surface area carbon absorbent - for removing heavy metal ions, esp chromium, from aq wastes
EP0002674A1 (en) * 1977-12-30 1979-07-11 Kennecott Corporation Granular activated carbon manufactured from brown coal treated with concentrated inorganic acid without pitch
CN116375025A (en) * 2022-12-30 2023-07-04 江苏浦士达环保科技股份有限公司 Ammonia-free protective carbon production method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2221404A1 (en) * 1973-03-13 1974-10-11 Naomi Kk High surface area carbon absorbent - for removing heavy metal ions, esp chromium, from aq wastes
EP0002674A1 (en) * 1977-12-30 1979-07-11 Kennecott Corporation Granular activated carbon manufactured from brown coal treated with concentrated inorganic acid without pitch
CN116375025A (en) * 2022-12-30 2023-07-04 江苏浦士达环保科技股份有限公司 Ammonia-free protective carbon production method
CN116375025B (en) * 2022-12-30 2023-10-03 江苏浦士达环保科技股份有限公司 Ammonia-free protective carbon production method

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