UST101203I4 - Process for production of granular diammonium phosphate - Google Patents

Process for production of granular diammonium phosphate Download PDF

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Publication number
UST101203I4
UST101203I4 US06/199,795 US19979580A UST101203I4 US T101203 I4 UST101203 I4 US T101203I4 US 19979580 A US19979580 A US 19979580A US T101203 I4 UST101203 I4 US T101203I4
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US
United States
Prior art keywords
production
preneutralizer
items
dust
diammonium phosphate
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
US06/199,795
Inventor
Byron R. Parker
Melvin M. Norton
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TENNESSEE VALLEY AUTHORITY A CORP OF US
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TENNESSEE VALLEY AUTHORITY A CORP OF US
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Application filed by TENNESSEE VALLEY AUTHORITY A CORP OF US filed Critical TENNESSEE VALLEY AUTHORITY A CORP OF US
Priority to US06/199,795 priority Critical patent/UST101203I4/en
Assigned to TENNESSEE VALLEY AUTHORITY, A CORP. OF U.S. reassignment TENNESSEE VALLEY AUTHORITY, A CORP. OF U.S. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: NORTON MELVIN M., PARKER BYRON R.
Application granted granted Critical
Publication of UST101203I4 publication Critical patent/UST101203I4/en
Pending legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B19/00—Granulation or pelletisation of phosphatic fertilisers, other than slag
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Fertilizers (AREA)

Abstract

Process for production of diammonium phosphate from orthophosphoric acid and ammonia. A specially designed inline reactor, a pipe reactor, is used to produce a homogeneous slurry with a lower moisture content than can be produced and pumped utilizing a preneutralizer as used in many prior-art granular fertilizer processes. Because of the lower moisture content of the slurry, drying requirements are eliminated. This eliminates two items of equipment, to wit, a preneutralizer and a dryer, and greatly simplifies pollution abatement since both items are sources of fumes and dust. The equipment utilized in the present process is inexpensive and simple to operate. The products produced are dust-free and of such particle size distribution that they are well suited for subsequent use in producing bulk blends.
US06/199,795 1980-10-23 1980-10-23 Process for production of granular diammonium phosphate Pending UST101203I4 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US06/199,795 UST101203I4 (en) 1980-10-23 1980-10-23 Process for production of granular diammonium phosphate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/199,795 UST101203I4 (en) 1980-10-23 1980-10-23 Process for production of granular diammonium phosphate

Publications (1)

Publication Number Publication Date
UST101203I4 true UST101203I4 (en) 1981-11-03

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ID=22739049

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/199,795 Pending UST101203I4 (en) 1980-10-23 1980-10-23 Process for production of granular diammonium phosphate

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US (1) UST101203I4 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4427433A (en) 1982-03-15 1984-01-24 Tennessee Valley Authority Production of granular ammonium-polyphosphate with an inline reactor and drum granulator
US4619684A (en) 1983-10-03 1986-10-28 Tennessee Valley Authority Pressure reactor for producing diammonium phosphate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4427433A (en) 1982-03-15 1984-01-24 Tennessee Valley Authority Production of granular ammonium-polyphosphate with an inline reactor and drum granulator
US4619684A (en) 1983-10-03 1986-10-28 Tennessee Valley Authority Pressure reactor for producing diammonium phosphate

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