GB1464990A - Purification of hard particulate inorganic materials - Google Patents

Purification of hard particulate inorganic materials

Info

Publication number
GB1464990A
GB1464990A GB3293974A GB3293974A GB1464990A GB 1464990 A GB1464990 A GB 1464990A GB 3293974 A GB3293974 A GB 3293974A GB 3293974 A GB3293974 A GB 3293974A GB 1464990 A GB1464990 A GB 1464990A
Authority
GB
United Kingdom
Prior art keywords
purification
inorganic materials
particulate inorganic
hard particulate
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
GB3293974A
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.)
Dynamit Nobel AG
Original Assignee
Dynamit Nobel 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 Dynamit Nobel AG filed Critical Dynamit Nobel AG
Publication of GB1464990A publication Critical patent/GB1464990A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B33/00—Clay-wares
    • C04B33/02—Preparing or treating the raw materials individually or as batches
    • C04B33/10—Eliminating iron or lime

Abstract

Hard materials are charged, without separation into particle size fractions, into aqueous hydrochloric acid and agitated therein. The acidic hard material suspension is then passed through at least two clarifying cyclones arranged in series and fed with fresh water. The suspension free from acid is now pre-dewatered by means of a filter, and is dried. The process can be carried out continuously.
GB3293974A 1973-08-01 1974-07-25 Purification of hard particulate inorganic materials Expired GB1464990A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732338937 DE2338937B2 (en) 1973-08-01 1973-08-01 PROCESS FOR CHEMICAL DEFROSTING OF HARD MATERIALS

Publications (1)

Publication Number Publication Date
GB1464990A true GB1464990A (en) 1977-02-16

Family

ID=5888554

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3293974A Expired GB1464990A (en) 1973-08-01 1974-07-25 Purification of hard particulate inorganic materials

Country Status (4)

Country Link
AT (1) AT336899B (en)
CH (1) CH608773A5 (en)
DE (1) DE2338937B2 (en)
GB (1) GB1464990A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2408854A1 (en) * 2012-06-19 2013-06-21 Industrias Del Cuarzo, S.A. Method of reducing iron oxide content in feldspars (Machine-translation by Google Translate, not legally binding)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2727052C2 (en) * 1977-06-15 1979-07-12 Sued-Chemie Ag, 8000 Muenchen Process for purifying high solids clay suspensions
IT1243828B (en) * 1990-10-11 1994-06-28 Consiglio Nazionale Ricerche PROCESS FOR THE REMOVAL OF IRON FROM CONCENTRATES OF CAOLINE, QUARTZ AND OTHER MATERIALS OF INDUSTRIAL INTEREST.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2408854A1 (en) * 2012-06-19 2013-06-21 Industrias Del Cuarzo, S.A. Method of reducing iron oxide content in feldspars (Machine-translation by Google Translate, not legally binding)

Also Published As

Publication number Publication date
AT336899B (en) 1977-05-25
DE2338937B2 (en) 1976-07-15
CH608773A5 (en) 1979-01-31
ATA624274A (en) 1976-09-15
DE2338937A1 (en) 1975-02-27

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee