GB349007A - Improvements in the granulation of fertilisers - Google Patents

Improvements in the granulation of fertilisers

Info

Publication number
GB349007A
GB349007A GB3888929A GB3888929A GB349007A GB 349007 A GB349007 A GB 349007A GB 3888929 A GB3888929 A GB 3888929A GB 3888929 A GB3888929 A GB 3888929A GB 349007 A GB349007 A GB 349007A
Authority
GB
United Kingdom
Prior art keywords
granulator
fertilizers
steam
passed
screened
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
GB3888929A
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.)
WILLIAM KENNETH HALL
Imperial Chemical Industries Ltd
Original Assignee
WILLIAM KENNETH HALL
Imperial Chemical Industries 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 WILLIAM KENNETH HALL, Imperial Chemical Industries Ltd filed Critical WILLIAM KENNETH HALL
Priority to GB3888929A priority Critical patent/GB349007A/en
Publication of GB349007A publication Critical patent/GB349007A/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
    • B01J2/10—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic in stationary drums or troughs, provided with kneading or mixing appliances
    • 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
    • B01J2/12—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic in rotating drums

Landscapes

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

Abstract

Fertilizers are granulated by agitating the pulverized material in the presence of steam. The granulator may comprise a cylindrical drum fitted with means for supplying steam and provided with an agitator, e.g. a central shaft carrying a number of blades whose surfaces are arranged in opposed directions so that the material is thrown backwards and forwards several times during each revolution. Alternatively, the granulator may consist of a rotating drum fitted with suitable baffles. The product coming from the granulator may be passed through a rotary dryer and screened, the over-size granules being passed through a crusher and again screened. The fines may be recirculated to the granulator, after grinding if required.ALSO:Fertilizers are granulated by agitating the pulverized material in the presence of steam. The granulator may comprise a cylindrical drum fitted with means for supplying steam and provided with an agitator, e.g. a central shaft carrying a number of blades whose surfaces are arranged in opposed directions so that the material is thrown backwards and forwards several times during each revolution. Alternatively, the granulator may consist of a rotating drum fitted with suitable baffles. The product coming from the granulator may be passed through a rotary drier and screened, the over-size granules being passed through a crusher and again screened. The fines may be recirculated to the granulator, after grinding if required. The process is particularly applicable to mixed fertilizers, e.g. those containing one soluble salt such as ammonium nitrate and at least one insoluble mineral such as gypsum or rock phosphate, or complete fertilizers such as mixtures of ammonium sulphate and phosphate, and a potassium salt. In the case of mixed fertilizers, the mixing may be effected before or during the treatment with steam. When gypsum is one of the constituents, it may be partially or completely dehydrated before granulation.
GB3888929A 1929-12-19 1929-12-19 Improvements in the granulation of fertilisers Expired GB349007A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3888929A GB349007A (en) 1929-12-19 1929-12-19 Improvements in the granulation of fertilisers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3888929A GB349007A (en) 1929-12-19 1929-12-19 Improvements in the granulation of fertilisers

Publications (1)

Publication Number Publication Date
GB349007A true GB349007A (en) 1931-05-19

Family

ID=10406292

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3888929A Expired GB349007A (en) 1929-12-19 1929-12-19 Improvements in the granulation of fertilisers

Country Status (1)

Country Link
GB (1) GB349007A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1078593B (en) * 1958-04-17 1960-03-31 Duengemittel Technik A G Process for the production of granulated nitrogenous phosphate fertilizers
DE1268160B (en) * 1963-07-19 1968-05-16 Hyperphosphat Ges M B H Deutsc Process for the production of granules from phosphate or phosphate-potash fertilizers that are practically abrasion-resistant and rapidly disintegrate under the action of moisture
EP0111807A1 (en) * 1982-12-16 1984-06-27 Bayer Ag Process for producing water-dispersible granules
EP0123056A2 (en) * 1983-03-09 1984-10-31 Wolff Walsrode Aktiengesellschaft Process for the continuous granulation of carboxymethyl cellulose
WO1997025406A1 (en) * 1996-01-09 1997-07-17 Henkel Kommanditgesellschaft Auf Aktien Process for the preparation of granular washing or cleaning agents and constituents therefor
EP0833072A2 (en) * 1996-09-28 1998-04-01 DRAISWERKE GmbH Process and device for solvent-free preparation of resin bonded agglomerates
CN105107411A (en) * 2015-08-28 2015-12-02 重庆市永川区天堂化工厂 Uniformly mixing equipment used for compound fertilizers
CN113145011A (en) * 2021-04-20 2021-07-23 众智机械(临沂)有限公司 Bio-organic fertilizer cylinder prilling granulator

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1078593B (en) * 1958-04-17 1960-03-31 Duengemittel Technik A G Process for the production of granulated nitrogenous phosphate fertilizers
DE1268160B (en) * 1963-07-19 1968-05-16 Hyperphosphat Ges M B H Deutsc Process for the production of granules from phosphate or phosphate-potash fertilizers that are practically abrasion-resistant and rapidly disintegrate under the action of moisture
EP0111807A1 (en) * 1982-12-16 1984-06-27 Bayer Ag Process for producing water-dispersible granules
EP0123056A2 (en) * 1983-03-09 1984-10-31 Wolff Walsrode Aktiengesellschaft Process for the continuous granulation of carboxymethyl cellulose
EP0123056A3 (en) * 1983-03-09 1985-10-09 Wolff Walsrode Aktiengesellschaft Process for the continuous granulation of carboxymethyl cellulose
WO1997025406A1 (en) * 1996-01-09 1997-07-17 Henkel Kommanditgesellschaft Auf Aktien Process for the preparation of granular washing or cleaning agents and constituents therefor
US6107269A (en) * 1996-01-09 2000-08-22 Henkel Kommanditgesellschaft Auf Aktien Process for the preparation of granular washing or cleaning agents and constituents therefor
EP0833072A2 (en) * 1996-09-28 1998-04-01 DRAISWERKE GmbH Process and device for solvent-free preparation of resin bonded agglomerates
EP0833072A3 (en) * 1996-09-28 1998-04-29 DRAISWERKE GmbH Process and device for solvent-free preparation of resin bonded agglomerates
CN105107411A (en) * 2015-08-28 2015-12-02 重庆市永川区天堂化工厂 Uniformly mixing equipment used for compound fertilizers
CN113145011A (en) * 2021-04-20 2021-07-23 众智机械(临沂)有限公司 Bio-organic fertilizer cylinder prilling granulator

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