UST959001I4 - Production of suspension fertilizers from wet-process orthophosphoric acids - Google Patents

Production of suspension fertilizers from wet-process orthophosphoric acids Download PDF

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Publication number
UST959001I4
UST959001I4 US05/702,209 US70220976A UST959001I4 US T959001 I4 UST959001 I4 US T959001I4 US 70220976 A US70220976 A US 70220976A US T959001 I4 UST959001 I4 US T959001I4
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US
United States
Prior art keywords
wet
production
suspension
settling
stages
Prior art date
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
US05/702,209
Inventor
Thomas M. Jones
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tennessee Valley Authority (ATV)
Original Assignee
Tennessee Valley Authority (ATV)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tennessee Valley Authority (ATV) filed Critical Tennessee Valley Authority (ATV)
Priority to US05/702,209 priority Critical patent/UST959001I4/en
Priority to US05/763,423 priority patent/US4066432A/en
Application granted granted Critical
Publication of UST959001I4 publication Critical patent/UST959001I4/en
Pending legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G5/00—Fertilisers characterised by their form
    • C05G5/20—Liquid fertilisers
    • C05G5/27—Dispersions, e.g. suspensions or emulsions

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Fertilizers (AREA)
  • Dispersion Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pest Control & Pesticides (AREA)

Abstract

A process for preparing concentrated, high-grade, nitrogen-phosphate (N--P2 O5) base suspension fertilizer from wet-process or other impure orthophosphoric acids. The process involves a new procedure for the direct ammoniation of orthophosphoric acid in stages for production of fluid, high-analysis, N--P2 O5 suspension fertilizer with good physical properties. The new process contains a novel method for prevention of settling of crystals in the suspension during vibration, such as that which occurs during shipment. Settling is avoided by producing small, thin crystals of diammonium phosphate through control of the N:P2 O5 ratio and temperature in the second and third ammoniation stages.
US05/702,209 1976-07-02 1976-07-02 Production of suspension fertilizers from wet-process orthophosphoric acids Pending UST959001I4 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US05/702,209 UST959001I4 (en) 1976-07-02 1976-07-02 Production of suspension fertilizers from wet-process orthophosphoric acids
US05/763,423 US4066432A (en) 1976-07-02 1977-01-28 Production of suspension fertilizers from wet-process orthophosphoric acids

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/702,209 UST959001I4 (en) 1976-07-02 1976-07-02 Production of suspension fertilizers from wet-process orthophosphoric acids

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US05/763,423 Continuation-In-Part US4066432A (en) 1976-07-02 1977-01-28 Production of suspension fertilizers from wet-process orthophosphoric acids

Publications (1)

Publication Number Publication Date
UST959001I4 true UST959001I4 (en) 1977-06-07

Family

ID=24820264

Family Applications (2)

Application Number Title Priority Date Filing Date
US05/702,209 Pending UST959001I4 (en) 1976-07-02 1976-07-02 Production of suspension fertilizers from wet-process orthophosphoric acids
US05/763,423 Expired - Lifetime US4066432A (en) 1976-07-02 1977-01-28 Production of suspension fertilizers from wet-process orthophosphoric acids

Family Applications After (1)

Application Number Title Priority Date Filing Date
US05/763,423 Expired - Lifetime US4066432A (en) 1976-07-02 1977-01-28 Production of suspension fertilizers from wet-process orthophosphoric acids

Country Status (1)

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US (2) UST959001I4 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4133670A (en) * 1977-09-14 1979-01-09 Farmland Industries, Inc. Method of preparing liquid monoammonium phosphate fertilizer suspension
US4375980A (en) * 1978-10-02 1983-03-08 Tennessee Valley Authority Production of suspension fertilizers from orthophorphoric acid
US4211546A (en) * 1978-10-05 1980-07-08 Western Farm Services Inc. Process for preparation of ammonium polyphosphate
US4383847A (en) * 1981-01-07 1983-05-17 James C. Barber And Associates, Inc. Production of fluid fertilizer from phosphorus furnace waste stream
US4762546A (en) * 1987-04-13 1988-08-09 Tennessee Valley Authority Production of high-grade nitrogen-sulfur suspension fertilizers
US5022913A (en) * 1989-08-28 1991-06-11 Tennessee Valley Authority Stabilized ammonium orthophosphate suspensions
US9512046B2 (en) 2012-08-16 2016-12-06 The Mosaic Company Phosphatic clay products for use as soil wetting agents, and methods of delivery of phosphatic clays to soil
US9067843B2 (en) * 2012-08-16 2015-06-30 The Mosaic Company Phosphatic clay products for use as soil wetting agents, methods of delivery of phosphatic clays to soil, and phosphatic clay coatings for purpose of water retention
US11542210B2 (en) * 2016-03-15 2023-01-03 Liquigro Holdings (Proprietary) Limited Method of producing a monoammonium phosphate containing fertilizer solution

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE29149E (en) 1957-03-29 1977-03-08 Union Oil Company Of California Production of ammonium phosphates and product thereof
UST889024I4 (en) 1970-10-16 1971-08-31 Defensive publication
UST900026I4 (en) 1971-06-21 1972-07-25 Storage time, days ammonium polyphosphate salt suspension fertilizer effect of ph on hydrolysis of polyphosphates to orthophosphate during storage at iooxf
IT963498B (en) * 1972-07-28 1974-01-10 Montedison Spa PROCEDURE FOR THE PRODUCTION OF LIQUID FERTILIZERS
US3813233A (en) * 1972-08-28 1974-05-28 Tennessee Valley Authority Production of suspension fertilizers from wet-process orthophosphoric acids

Also Published As

Publication number Publication date
US4066432A (en) 1978-01-03

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