Monohydrate Manganese Sulfate

Manganese oxide is produced by mixing pyrolusite powder with pulverized coal at a ratio of l00:20 (mass ratio) and reduction roasting at 800℃ in a roaster. It was cooled to room temperature under isolation of air, and acid-lyzed in 15% ~ 20% dilute sulfuric acid. Manganese dioxide powder was used as oxidant to make Fe2 -- Fea -- -, and the pH was controlled to be less than 5.2. After pressure filtration, Fea+, aluminum and other acid insoluble matter were removed, and then the calcium impurities were further removed by standing settlement. Manganese sulfate filtrate was concentrated by evaporation, crystallized, centrifuged and dried by hot air.

 

Item	Indicator
MnSO4.H2O ≥	98.0
Mn Content, % ≥	31.8
Total arsenic (subject to As), mg / kg ≤	2
Pb (subject to Pb), mg / kg ≤	5
Cd(subject to Cd),mg/kg ≤	5
Hg(subject to Hg),mg/kg ≤	0.1
Water content,% ≤	0.5
Water insoluble,% ≤	0.1
Fineness (Passing rate W=180µm test sieve), % ≥	95

Feature

1. The productive technology is designed by high technology ,automation and large-scale operation.

2. The product quality and health indicator is stable within low heavy metal content.

Populární Tagy: monohydrate manganese sulfate