Increase in strength of manganese agglomerate during processing humate solution

Abstract

The object of the research is the metallurgical technology of involving finely dispersed manganese concentrates, which are formed during the extraction and enrichment of raw materials, in the production of manganese agglomerate. The purpose of the work is to develop innovative technological solutions and recommendations for the sintering tec hnology of agglomerate with an increased up to 60% share in the charge of grade 2 finely dispersed concentrate based on the results of the analysis of physicochemical processes during the sintering of manganese agglomerate and experimental studies. Research methods – theoretical studies of concentrate agglomeration processes are based on the basic principles of physical chemistry and the theory of metallurgical processes. Calculations of the thermodynamic equilibrium of oxide systems, adequate for agglomeration, are based on the Gibbs theory and implemented using the computer program "FASTSage 6.0"; the method of mathematical statistics was used to process the results. Research results. A rational scheme for preliminary preparation of finely dispersed manganese ore enrichment waste for use in metallurgical processes has been determined; a rational amount of manganese ore beneficiation waste in the initial charge has been established; the proven possibility of returning 50...70% (against the usual 10...15%) of finely di spersed (0-1 mm fractions) grade 2 manganese concentrate to the batch for the production of manganese agglomerate due to the use of the peat hydroxide reagent (PTH) in the amount of 5...7% with a simultaneous increase the strength of the agglomerate granules is doubled. The original carbonate manganese ore was treated at the stage of dosing it into the batch and the obtained agglomerate with humic peat extract to strengthen the agglomerate and reduce dust formation