ES254089A1 - Process for activating clays with acid - Google Patents

Process for activating clays with acid

Info

Publication number
ES254089A1
ES254089A1 ES0254089A ES254089A ES254089A1 ES 254089 A1 ES254089 A1 ES 254089A1 ES 0254089 A ES0254089 A ES 0254089A ES 254089 A ES254089 A ES 254089A ES 254089 A1 ES254089 A1 ES 254089A1
Authority
ES
Spain
Prior art keywords
clay
liquor
hydrogen chloride
water
slurry
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
ES0254089A
Other languages
Spanish (es)
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
Publication of ES254089A1 publication Critical patent/ES254089A1/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
    • 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
    • C01B33/38—Layered base-exchange silicates, e.g. clays, micas or alkali metal silicates of kenyaite or magadiite type
    • C01B33/42—Micas ; Interstratified clay-mica products
    • 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"

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)
  • Materials Engineering (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

In a process for the activation of a clay, a slurry of clay and water is mixed with hydrochloric acid or hydrogen chloride gas is absorbed in the slurry, the mixture is digested at 100 DEG to 200 DEG C. for at least two hours, and, after separation of the activated clay from the resultant liquor, the chlorides contained in the liquor are converted to hydrogen chloride by steam decomposition at 500 DEG to 1000 DEG C., and recycled for the activation of further clay. The clay which may be montmorillonite, bentonite, illite or kaolinite, is milled and mixed with water to form a slurry containing 5 to 40% by weight of clay which is mixed with hydrochloric acid solution or contacted with hydrogen chloride in an absorption tower, or the clay may be mixed with hydrochloric acid solution and then milled. The digestion is carried out in a series of vessels and the liquor is separated from the activated clay by filtration, centrifuging or sedimentation, the clay being washed with water and a part of the washings added to the separated liquor. The chloride ion concentration in the liquor is increased by evaporation or by adding calcium chloride, and the liquor is subjected to steam decomposition by contacting a spray of the liquor with an oil or gas flame, to obtain hydrogen chloride vapour magnesium, aluminium, calcium and iron chlorides react with water vapour to form the oxides of these metals and hydrogen chloride, and the aluminium oxide reacts with calcium chloride and water vapour to form calcium aluminate and hydrogen chloride magnesium aluminate and iron aluminate are also formed. The hydrogen chloride is either absorbed by further clay slurry, or is absorbed in water and the hydrochloric acid added to further clay slurry. Specification 793,700 is referred to.
ES0254089A 1958-12-19 1959-12-10 Process for activating clays with acid Expired ES254089A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4109158A GB939937A (en) 1958-12-19 1958-12-19 Process for activating clays with acid

Publications (1)

Publication Number Publication Date
ES254089A1 true ES254089A1 (en) 1960-04-16

Family

ID=34509261

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0254089A Expired ES254089A1 (en) 1958-12-19 1959-12-10 Process for activating clays with acid

Country Status (3)

Country Link
ES (1) ES254089A1 (en)
FR (1) FR1243615A (en)
GB (1) GB939937A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2758551A1 (en) * 1997-01-20 1998-07-24 Henri Louis Marie Drean Method for augmenting the porosity of clay supports such as sepiolite
WO2000003798A1 (en) * 1998-07-17 2000-01-27 Cca Food Technologies (Uk) Plc Treatment method and device for increasing clay porosity and use for producing absorbents
CN116440855B (en) * 2023-06-16 2023-09-05 格林斯达(北京)环保科技股份有限公司 Purification material and preparation method and application thereof

Also Published As

Publication number Publication date
GB939937A (en) 1963-10-16
FR1243615A (en) 1960-10-14

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