GB356523A - Improvements in the removal of iron and iron compounds from substances containing iron - Google Patents

Improvements in the removal of iron and iron compounds from substances containing iron

Info

Publication number
GB356523A
GB356523A GB29858/30A GB2985830A GB356523A GB 356523 A GB356523 A GB 356523A GB 29858/30 A GB29858/30 A GB 29858/30A GB 2985830 A GB2985830 A GB 2985830A GB 356523 A GB356523 A GB 356523A
Authority
GB
United Kingdom
Prior art keywords
iron
hydrochloric acid
ether
extracted
acetone
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
GB29858/30A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie 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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to GB29858/30A priority Critical patent/GB356523A/en
Publication of GB356523A publication Critical patent/GB356523A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/04—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom
    • C01F7/06—Preparation of alkali metal aluminates; Aluminium oxide or hydroxide therefrom by treating aluminous minerals or waste-like raw materials with alkali hydroxide, e.g. leaching of bauxite according to the Bayer process
    • C01F7/0613—Pretreatment of the minerals, e.g. grinding
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/46—Purification of aluminium oxide, aluminium hydroxide or aluminates

Abstract

Solid materials containing iron are freed therefrom by converting the iron to a salt if necessary and extracting the salt with an organic solvent, which may be an ether, aldehyde, ketone, or organic halogen compound. The extraction is preferably effected in the absence of water, but a material containing water of crystallization may be treated or small amounts of water be present in the solvent. In examples, heavy spar is extracted with ether, methanol, acetone, or chloroform saturated with hydrochloric acid gas; bauxite is extracted with ether, methylene chloride, trichlorethylene, or ethyene chloride in the presence of hydrochloric acid gas; producer slag containing iron and aluminium is decomposed with hydrochloric acid, and the dried mass extracted with ether, acetone, paraldehyde, or chloroform, optionally in the presence of hydrochloric acid; producer slag containing iron and aluminium is decomposed with sulphuric acid and the dried mass extracted with acetone in the presence of hydrochloric acid; and a mixture of nickel or cobalt chloride with ferric chloride is extracted with ether which may contain hydrochloric acid.
GB29858/30A 1930-10-06 1930-10-06 Improvements in the removal of iron and iron compounds from substances containing iron Expired GB356523A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB29858/30A GB356523A (en) 1930-10-06 1930-10-06 Improvements in the removal of iron and iron compounds from substances containing iron

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB29858/30A GB356523A (en) 1930-10-06 1930-10-06 Improvements in the removal of iron and iron compounds from substances containing iron

Publications (1)

Publication Number Publication Date
GB356523A true GB356523A (en) 1931-09-10

Family

ID=10298342

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29858/30A Expired GB356523A (en) 1930-10-06 1930-10-06 Improvements in the removal of iron and iron compounds from substances containing iron

Country Status (1)

Country Link
GB (1) GB356523A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4522928A (en) * 1982-10-18 1985-06-11 Exxon Research And Engineering Co. Removal of metal comtaminants from catalysts using buffered oxalic acid
US6468483B2 (en) 2000-02-04 2002-10-22 Goldendale Aluminum Company Process for treating alumina-bearing ores to recover metal values therefrom

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4522928A (en) * 1982-10-18 1985-06-11 Exxon Research And Engineering Co. Removal of metal comtaminants from catalysts using buffered oxalic acid
US6468483B2 (en) 2000-02-04 2002-10-22 Goldendale Aluminum Company Process for treating alumina-bearing ores to recover metal values therefrom

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