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A process for the production of magnesium sulphate hepta-hydrate from the industrial waste by grinding and screening the industrial waste dust neutralizing the above said industrial waste dust with 60-90% h2so4 of strength ranging between 1-35n and water at the temperature in the range of 60-100 c followed by solid-liquid filtration to obtain .
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Nov 24 2019 the reason for the extensive use of the pidgeon process is due to the shift in production to the coal-rich provinces in north-central china where labor and energy costs are significantly lower than in other magnesium producing regions according to magnesiumcom in 1992 china produced only 7388 tons of magnesium
Magnesium sulfate (aka epsom salt) is a magnesium salt having sulfate as the counterion in nature it does not occurs in its anhydrous form only in hydrated compositions being mgso4 7 one of the most stable and commercially important this report analyses the economics of a magnesium sulfate production process from magnesium
Automatic compound fertilizer magnesium sulphate as you see shunxin is the leader of fertilizer equipment industry in chinaover the past many years we have been engaging in manufacturing the fertilizer production lineat present there are many different machineries for the compound fertilizer production linealibaba offers 539 magnesium sulphate granular fertilizer products
In the prior art there are known methods of producing magnesium sulphate contemplating the processing of natural polymineral ores or brines comprised of magnesium sulphate with ferrous sulphate being employed as a sulphate-containing component and the process of thermal treatment being conducted at a temperature ranging from 400 to 900 c
Our invention relates to improvements in a process for manufacturing iron-free magnesium ssulphate from certain minerals and is of particular vaiue in producing magnesium sulphate from a natural silicate of magnesia having a normally basic reaction i e which is decomposable by acid for example serpentine (mg3si2o72h20) or olivine ((mgfe) 2sio4)