GB856756A - Activation of bleaching clay - Google Patents

Activation of bleaching clay

Info

Publication number
GB856756A
GB856756A GB33291/57A GB3329157A GB856756A GB 856756 A GB856756 A GB 856756A GB 33291/57 A GB33291/57 A GB 33291/57A GB 3329157 A GB3329157 A GB 3329157A GB 856756 A GB856756 A GB 856756A
Authority
GB
United Kingdom
Prior art keywords
clay
pellets
heating
column
minutes
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
GB33291/57A
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.)
National Research Council of Canada
Original Assignee
National Research Council of Canada
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 National Research Council of Canada filed Critical National Research Council of Canada
Publication of GB856756A publication Critical patent/GB856756A/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
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/20—Silicates
    • C01B33/36—Silicates having base-exchange properties but not having molecular sieve properties
    • C01B33/38—Layered base-exchange silicates, e.g. clays, micas or alkali metal silicates of kenyaite or magadiite type
    • C01B33/42—Micas ; Interstratified clay-mica products
    • 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
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
    • B01J8/24—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
    • B01J8/245—Spouted-bed technique
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/20—Silicates
    • C01B33/26—Aluminium-containing silicates, i.e. silico-aluminates
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/20—Silicates
    • C01B33/36—Silicates having base-exchange properties but not having molecular sieve properties
    • C01B33/38—Layered base-exchange silicates, e.g. clays, micas or alkali metal silicates of kenyaite or magadiite type
    • C01B33/40—Clays
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B33/00—Silicon; Compounds thereof
    • C01B33/20—Silicates
    • C01B33/36—Silicates having base-exchange properties but not having molecular sieve properties
    • C01B33/46—Amorphous silicates, e.g. so-called "amorphous zeolites"
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency
    • Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Analytical Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Fats And Perfumes (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)

Abstract

Clay is activated by mixing it with 25-60% by weight of water and 10-50% by weight of sulphuric acid and heating for a time and at a temperature sufficient to activate the clay and reduce the water content to a maximum of 10% by weight. This heating is preferably carried out for 10-250 minutes at a tempera <PICT:0856756/III/1> ture of 100-400 DEG C. The process may be carried out continuously by passing the mixture, preferably in the form of pellets, through a heating zone at 100-200 DEG C., the residence time in the zone being 10-40 minutes. The heating may be effected in a spouting bed column (Fig. 2) as described and claimed in Specification 801,315. In Fig. 2, a tower 1 contains a bed 2 of wet clay pellets. Air enters through an orifice 6, forming a narrow column 7 in which the pellets are moving upwards to form a spout 8, the pellets outside said column moving downwards and inwards towards said column. The activated clay leaves via pipe 4. The activated clay may be employed for bleaching oils. In an example, an unbleached hydrocarbon oil, namely a semi-finished solvent refined dewaxed mineral oil with viscosity corresponding to SAE No. 30 and a viscosity index of 90, was mixed with the clay and heated to 143 DEG C. in 15 minutes in a carbon dioxide atmosphere, after which the mixture was cooled to 100 DEG C. and filtered.
GB33291/57A 1956-11-19 1957-10-24 Activation of bleaching clay Expired GB856756A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA1187976X 1956-11-19

Publications (1)

Publication Number Publication Date
GB856756A true GB856756A (en) 1960-12-21

Family

ID=25682930

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33291/57A Expired GB856756A (en) 1956-11-19 1957-10-24 Activation of bleaching clay

Country Status (3)

Country Link
DE (1) DE1080988B (en)
FR (1) FR1187976A (en)
GB (1) GB856756A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1275463A (en) * 1960-09-28 1961-11-10 Potasse & Engrais Chimiques Improvements in granulation and drying of fluid products
SE372555B (en) * 1968-10-01 1974-12-23 Mizusawa Industrial Chem
DE4436012A1 (en) * 1994-10-08 1996-04-11 Sued Chemie Ag Activation of bentonite clays with specified moisture content range
DE4438305A1 (en) * 1994-10-26 1996-05-02 Sued Chemie Ag Pigment for coating printing papers, in particular color developer pigment for carbonless papers

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1513622A (en) * 1923-04-09 1924-10-28 Manning Refining Equipment Cor Apparatus for revivifying purifying materials
DE483063C (en) * 1925-01-07 1929-09-25 Bayerische Akt Ges Fuer Chemis Manufacture of fuller's earth

Also Published As

Publication number Publication date
FR1187976A (en) 1959-09-17
DE1080988B (en) 1960-05-05

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