Process for producing agglomerates of metal containing ores and the product of the process
AssigneeAkzo N.V.
InventorsHerm J. Roorda, Max J. Jipping
Life of this patent
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Abstract
A process is provided for the agglomeration or pelletizing of metallic ores in the presence of water with a binder containing an alkali metal salt of carboxymethyl cellulose in an amount of at least 0.01%, calculated on the weight of the dry ore material, in combination with one or more salts derived from an alkali metal and a low-molecular weak acid having a pK value higher than 3 and a molecular weight lower than 500 in an amount of at least 2%, calculated on the weight of the alkali metal salt of carboxymethyl cellulose.
Claims14
In a process for agglomerating a metal-containing ore material in the presence of water and an alkali metal salt of carboxymethyl cellulose as a binder, the improvement comprising combining as a binder an alkali metal salt of carboxymethyl cellulose in an amount of at least 0.01%, calculated on the weight of the dry ore material, with one or more salts selected from the group consisting of an alkali metal salt of acetic acid, benzoic acid, lactic acid, propionic acid, tartaric acid, succinic acid, citric acid, nitrous acid, boric acid and carbonic acid in an amount of at least 2%, calculated on the weight of the alkali metal salt of carboxymethyl cellulose.
Dependencies are inferred from the claim text.