Assertion: molten ammonium nitrate | /r/MadeOf | about 5 weight percent water
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Source sentences:
text: In the production of ammonium nitrate prills wherein molten ammonium nitrate, containing about 5 weight percent water, is sprayed into the top of a prilling tower countercurrent to a flow of cooling gas the improvement which comprises collecting the prills at the bottom of the prilling tower at a temperature in the range 70 to 100 C.; passing the prills at a temperature in the range 60 to C. through a predrying zone; passing air through said predrying zone, said air having a relative humidity of 70 to 90 percent at 35 to 38 C. and a temperature suiiicient to raise the temperature of the prills from about 1 C. to about 5 C.; passing said prills through a `drying zone; passing air through said drying zone, said air having a relative humidity of less than 60 percent at 35 to 38 C. and a temperature suiiicient to raise the temperature of the prills from about 1 C. to about 5 C.; passing said prills through a cooling zone; passing air through said cooling zone; said air having a relative humidity of less than 60 percent at the entrance temperature and at a temperature sufficient to lower the temperature of the prills to about 45-50 C.; and recovering resulting dried prills.