GB1395906A - Prilling - Google Patents

Prilling

Info

Publication number
GB1395906A
GB1395906A GB1389471A GB1389471A GB1395906A GB 1395906 A GB1395906 A GB 1395906A GB 1389471 A GB1389471 A GB 1389471A GB 1389471 A GB1389471 A GB 1389471A GB 1395906 A GB1395906 A GB 1395906A
Authority
GB
United Kingdom
Prior art keywords
prilling
plate
prilled
bore
phosphating agent
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.)
Expired
Application number
GB1389471A
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.)
Fisons Ltd
Original Assignee
Fisons Ltd
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 Fisons Ltd filed Critical Fisons Ltd
Priority to GB1389471A priority Critical patent/GB1395906A/en
Publication of GB1395906A publication Critical patent/GB1395906A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • B01J2/02—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Glanulating (AREA)
  • Fertilizers (AREA)

Abstract

1395906 Prilling FISONS Ltd 27 April 1972 [8 May 1971] 13894/71 Heading B5A [Also in Divisions C1 and C2] A process for prilling substantially pure ammonium nitrate and/or urea through a bore in the absence of added boric acid to a salt thereof, is characterized in that less than 1% by weight of a phosphating agent is incorporated into the material being prilled whereby the interior surface of the bore is given a phosphate treatment. The phosphating agent may be ammonium phosphate or one selected from phosphoric acid and salts thereof and its presence results in a coating 12, Fig. 2, on the inside of the tubes 11 which extend from a distributor plate 6, Fig. 1, at the base of steam jacketed tank 1 containing a secondary tank 9 to which the molten material to be prilled, is fed. The exterior surface of the plate 6 has a silicone coating 15. The droplets formed by the bores fall down a cooling tower through particulate material suspended in a gas stream into a fluidized bed of particulate material. A reciprocating transverse plate may be located above the distributor plate to induce pressure waves in the molten material.
GB1389471A 1971-05-08 1971-05-08 Prilling Expired GB1395906A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1389471A GB1395906A (en) 1971-05-08 1971-05-08 Prilling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1389471A GB1395906A (en) 1971-05-08 1971-05-08 Prilling

Publications (1)

Publication Number Publication Date
GB1395906A true GB1395906A (en) 1975-05-29

Family

ID=10031314

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1389471A Expired GB1395906A (en) 1971-05-08 1971-05-08 Prilling

Country Status (1)

Country Link
GB (1) GB1395906A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2832439A1 (en) * 2013-08-01 2015-02-04 Uhde Fertilizer Technology B.V. Reactor for producing nitrogen-containing fertilizer granules
EP3542893A1 (en) 2018-03-23 2019-09-25 thyssenkrupp Fertilizer Technology GmbH Fluidised bed granulator or fluidised bed cooler with coated perforated plate
WO2019180155A1 (en) 2018-03-23 2019-09-26 Thyssenkrupp Fertilizer Technology Gmbh Fluid-bed granulator system with coating material to prevent dust buildup in the air systems of urea granulation plants

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2832439A1 (en) * 2013-08-01 2015-02-04 Uhde Fertilizer Technology B.V. Reactor for producing nitrogen-containing fertilizer granules
WO2015014447A1 (en) * 2013-08-01 2015-02-05 Uhde Fertilizer Technology B.V. Reactor for producing nitrogen-containing fertilizer granules
CN105531023A (en) * 2013-08-01 2016-04-27 伍德肥料技术公司 Reactor for producing nitrogen-containing fertilizer granules
US20160175797A1 (en) * 2013-08-01 2016-06-23 Uhde Fertilizer Technology B.V. Reactor for producing nitrogen-containing fertilizer granules
RU2665416C2 (en) * 2013-08-01 2018-08-29 Уде Фертилайзер Текнолоджи Б.В. Reactor for manufacturing nitrogen fertilizer granules
EP3542893A1 (en) 2018-03-23 2019-09-25 thyssenkrupp Fertilizer Technology GmbH Fluidised bed granulator or fluidised bed cooler with coated perforated plate
WO2019180158A1 (en) 2018-03-23 2019-09-26 Thyssenkrupp Fertilizer Technology Gmbh Fluidized bed granulator or fluidized bed cooler with coated perforated plate
WO2019180155A1 (en) 2018-03-23 2019-09-26 Thyssenkrupp Fertilizer Technology Gmbh Fluid-bed granulator system with coating material to prevent dust buildup in the air systems of urea granulation plants
JP2021516154A (en) * 2018-03-23 2021-07-01 ティッセンクルップ フェルティリツァー テクノロジー ゲゼルシャフト ミット ベシュレンクテル ハフツング Fluidized bed granulator system with coating material to prevent dust accumulation in the air system of urea granulation plants
JP2023030102A (en) * 2018-03-23 2023-03-07 ティッセンクルップ フェルティリツァー テクノロジー ゲゼルシャフト ミット ベシュレンクテル ハフツング Fluid-bed granulator system with coating material to prevent dust buildup in air systems of urea granulation plants

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees