Ammonium Sulfate

Fertilizer – The primary use of Ammonium Sulfate is as a fertilizer for alkaline soils. In the soil the ammonium ion is released and forms a small amount of acid, lowering the pH balance of the soil, while contributing essential nitrogen for plant growth.

Food Additives | Acid Regulator (E517) – As a food additive, Ammonium Sulfate is considered generally recognized as safe (GRAS) by the U.S. Food and Drug Administration, and in the European Union it is designated by the E number E517. It is used as an acidity regulator in flours and breads.

Treatment of drinking water – In the treatment of drinking water, Ammonium Sulfate is used in combination with chlorine to generate monochloramine for disinfection.

Ammonium Sulfate usage - Fertilizer - Food - Water treatment

Ammonium Sulfate

Ammonium Sulfate – Centrifuges

Selection Criteria for SHS & CONTURBEX

Minimum of the solid concentration in the feed
Average diameter d50%w/w%w/w
< 0,5 mm4020
> 0,5 mm3520
Key Points
Solid layer+++
Smooth product transport, less particle breakage and less solid losses to filtrate due to high thickness of solid layer.
Thinner solid layer provides a quick dewatering, but may cause more particle breakage and higher losses of solids in the filtrate.
Solid concentration+
High and stable solid concentration is requested.
Low and varying solid concentration can be handled.
Product washing+++
Very good washing efficiency due to long retention time of product on the screen.
Partly limited washing efficiency due to short retention time.
Product transport+
No forced product transport, product remains in the drum after feeding stop. Cleaning is requested before restarting the machine to prevent high vibrations.
Forced product transport by the scroll - “self-cleaning” - minimum remaining product after feeding stop.
Smooth product transport and less particle breakage due to low g-force.
Higher g-force provides a quick dewatering, but more stressful product transport (scroll) may cause higher particle breakage and higher losses of solids in the filtrate.
Gas-tight execution+++
Vapour- and gas tight execution available.
Vapour- and gas tight execution available.

Ammonium Sulfate Processes

Ammonium Sulfate out of ammonia gas and sulfuric acid

A) Synthetic production of Ammonium Sulfate out of ammonia gas and sulfuric acid.

Ammonium Sulfate out of ammonia gas and sulfuric acid

Ammonium Sulfate – recovering out of wastewater

B) Recovering Ammonium Sulfate out of sulfuric- or ammonia containing wastewater from processes such as:

Ammonium Sulfate - Recovering out of wastewater

Ammonium Sulfate as by-product (desulfurization)

C) By-product of the desulfurization of coke oven gas or ammonia-containing wastewater.

Ammonium Sulfate as by-product - Desulfurization of coke oven gas or wastewater

All Links:
Fertilizers | Food & Dairy | Recycling & ZLD | Inorganic Salts

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