GB704495A - Improvements in or relating to bleaching earths - Google Patents

Improvements in or relating to bleaching earths

Info

Publication number
GB704495A
GB704495A GB654052A GB654052A GB704495A GB 704495 A GB704495 A GB 704495A GB 654052 A GB654052 A GB 654052A GB 654052 A GB654052 A GB 654052A GB 704495 A GB704495 A GB 704495A
Authority
GB
United Kingdom
Prior art keywords
bleaching earth
raw
bleaching
earths
earth
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
GB654052A
Inventor
Otto Eckart
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.)
Sued Chemie AG
Original Assignee
Sued Chemie AG
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 Sued Chemie AG filed Critical Sued Chemie AG
Priority to GB654052A priority Critical patent/GB704495A/en
Publication of GB704495A publication Critical patent/GB704495A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/12—Naturally occurring clays or bleaching earth

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Inorganic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Catalysts (AREA)

Abstract

Highly active bleaching earths having a high grain strength are produced by mixing normally activated bleaching earth with raw bleaching earth in the presence of water, drying and granulating. In one embodiment of the invention the raw bleaching earth is in the form of a sludge or slurry; in another, undried activated bleaching earth is mixed with dried raw bleaching earth and the paste moulded and dried. Heat treatment of granulated products at 300-400 DEG C. increases the grain strength. The proportions of raw to activated bleaching earth may be varied to produce bleaching earths with different efficiencies, and salts, metal oxides and other catalysts may be incorporated.
GB654052A 1952-03-13 1952-03-13 Improvements in or relating to bleaching earths Expired GB704495A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB654052A GB704495A (en) 1952-03-13 1952-03-13 Improvements in or relating to bleaching earths

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB654052A GB704495A (en) 1952-03-13 1952-03-13 Improvements in or relating to bleaching earths

Publications (1)

Publication Number Publication Date
GB704495A true GB704495A (en) 1954-02-24

Family

ID=9816359

Family Applications (1)

Application Number Title Priority Date Filing Date
GB654052A Expired GB704495A (en) 1952-03-13 1952-03-13 Improvements in or relating to bleaching earths

Country Status (1)

Country Link
GB (1) GB704495A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0604861A1 (en) * 1992-12-21 1994-07-06 Süd-Chemie Ag Process for the preparation of an absorbent based on smectite for retaining fluids

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0604861A1 (en) * 1992-12-21 1994-07-06 Süd-Chemie Ag Process for the preparation of an absorbent based on smectite for retaining fluids
US5402752A (en) * 1992-12-21 1995-04-04 Sud-Chemie A.G. Process for production of sorbents based on smectite for uptake of liquids

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