GB801722A - Process for treating clays - Google Patents

Process for treating clays

Info

Publication number
GB801722A
GB801722A GB929255A GB929255A GB801722A GB 801722 A GB801722 A GB 801722A GB 929255 A GB929255 A GB 929255A GB 929255 A GB929255 A GB 929255A GB 801722 A GB801722 A GB 801722A
Authority
GB
United Kingdom
Prior art keywords
water
pellets
acid
clay
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
GB929255A
Inventor
Gordon Kenneth Jones
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.)
FULLERS EARTH UNION Ltd
Original Assignee
FULLERS EARTH UNION Ltd
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 FULLERS EARTH UNION Ltd filed Critical FULLERS EARTH UNION Ltd
Priority to GB929255A priority Critical patent/GB801722A/en
Priority to DEF19875A priority patent/DE1018401B/en
Publication of GB801722A publication Critical patent/GB801722A/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
    • 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
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/16—Clays or other mineral silicates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Inorganic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • Catalysts (AREA)

Abstract

An acid-activated montmorillonite clay, e.g. fuller's earth, suitable for use as a catalyst or bleaching earth is produced by mixing the clay with an acid, e.g. sulphuric acid, in the presence of water, extruding the mixture and forming pellets or nodules thereof, heating to activate whilst preventing loss of water and removing acid, water-soluble salts and water. The clay may be thus treated after drying and grinding to a powder containing 2-15 per cent of water or as mined. Activation may take place at 60-125 DEG C. at atmospheric pressure in a water-saturated atmosphere for 1-32 hours or may be carried out under pressure: the pellets may be passed downwardly through a heated tower or through a continuous oven. The acid and salts may be removed by leaching the pellets with water with or without previous grinding. The methods of Specifications 688,976 or 632,535 may be used after leaching to dry the product; the method of Specification 696,943 may be used to remove water, acids and salts; the wash water should not be above 80 DEG C. and the operation may be performed countercurrently. The resultant pellets (or the product of dewatering a slurry) may then be passed to a rotary kiln to reduce the water content to e.g. 0.1 per cent. Alternatively the moist activated pellets may be ground with water or a water-miscible solvent and spray- or film-dried. In the examples a calcium montmorillonite and fuller's earth are employed.
GB929255A 1955-03-30 1955-03-30 Process for treating clays Expired GB801722A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB929255A GB801722A (en) 1955-03-30 1955-03-30 Process for treating clays
DEF19875A DE1018401B (en) 1955-03-30 1956-03-23 Process for the production of fuller's earth

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB929255A GB801722A (en) 1955-03-30 1955-03-30 Process for treating clays

Publications (1)

Publication Number Publication Date
GB801722A true GB801722A (en) 1958-09-17

Family

ID=9869167

Family Applications (1)

Application Number Title Priority Date Filing Date
GB929255A Expired GB801722A (en) 1955-03-30 1955-03-30 Process for treating clays

Country Status (2)

Country Link
DE (1) DE1018401B (en)
GB (1) GB801722A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0317394A2 (en) * 1987-11-20 1989-05-24 Rhone-Poulenc Chimie Process for preparing acid anhydrides
US5260456A (en) * 1987-11-20 1993-11-09 Rhone-Poulenc Chimie Process for producing itaconic anhydride
WO2001034295A1 (en) * 1999-11-12 2001-05-17 Engelhard Corporation Sorbent, method of making the sorbent, and method of using the sorbent in fixed bed applications
CN111634922A (en) * 2020-05-18 2020-09-08 江苏森茂能源发展有限公司 Directional activation technology for argil

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH126189A (en) * 1927-03-10 1928-06-01 Brunner Dr Josef Process for the production of highly active fuller's earth in the form of grains.
CH187110A (en) * 1936-03-04 1936-10-31 Steiger Werner Process for the production of adsorbents.

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0317394A2 (en) * 1987-11-20 1989-05-24 Rhone-Poulenc Chimie Process for preparing acid anhydrides
FR2623500A1 (en) * 1987-11-20 1989-05-26 Rhone Poulenc Chimie PROCESS FOR THE PREPARATION OF ITACONIC ANHYDRIDE
EP0317394A3 (en) * 1987-11-20 1991-03-27 Rhone-Poulenc Chimie Process for preparing acid anhydrides
US5260456A (en) * 1987-11-20 1993-11-09 Rhone-Poulenc Chimie Process for producing itaconic anhydride
US6018057A (en) * 1987-11-20 2000-01-25 Rhodia Chimie Process for producing acid anhydrides
WO2001034295A1 (en) * 1999-11-12 2001-05-17 Engelhard Corporation Sorbent, method of making the sorbent, and method of using the sorbent in fixed bed applications
CN111634922A (en) * 2020-05-18 2020-09-08 江苏森茂能源发展有限公司 Directional activation technology for argil

Also Published As

Publication number Publication date
DE1018401B (en) 1957-10-31

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