Production of molybdenum fertilizer

It is said that the main species of molybdenum with ammonium molybdate, sodium molybdate and molybdenum trioxide. In addition, wastewater and waste residue containing molybdenum as molybdenum can also be used.

First, ammonium molybdate,as a fertilizer,has better effects and commonly used.

Formula (NH4) 6Mo7O24 · 4H2O, effective components (Mo) content of 54%. Colorless or light green, diamond-shaped crystal, specific gravity is 2.38 ~ 2.98. Soluble in water, acid and alkali, insoluble in alcohol, acetone. Slightly acidic aqueous solution reaction. In the air, lose crystal water easily weathered, and some ammonia, heated to 90 ℃, the loss of a crystal water, 190 ℃ when the decomposition of ammonia, water, and molybdenum trioxide. Can be used as basal fertilizer, fertilizer, seed fertilizer or foliar spray.

Followed by sodium molybdate, after the amount of ammonium molybdate

Formula Na2MoO4 · 2H2O, effective components (Mo) content of 39.6%. White crystalline powder, specific gravity of 3.28. Heated to 100 ℃ or a longer period of time loses crystal water when heated. Can be used as basal fertilizer, fertilizer, seed fertilizer or foliar spray.
One more, one with less agricultural molybdenum trioxide is generally mixed when necessary.

Industrial emissions of each year a large number of ammonium production wastewater and waste residue containing molybdenum, ammonium molybdate to produce about 1 ton 0.4 tons waste, waste water 1.6 m3. Molybdenum Molybdenum is 29 calcine residue with ammonia or alkaline residue remaining after impregnation. Untreated waste residue containing molybdenum, the effective component containing 10% full 16% of molybdenum, molybdenum state solution 1% to 5%, 1.3% Available 6% molybdenum. Wastewater is defined as concentrated, and crystallized in by the second mother liquor after the waste acid solution, wastewater containing molybdenum 2 to 3 grams / liter. Molybdenum waste and waste water can be used for basal or types of manure into the soil, application rate according to how much to set the amount of molybdenum, molybdenum generally 25 per acre to 50 grams. The fertilizer sustainable 2 to 4 years.