GB958471A - Improvements relating to the production of granular fertilizers - Google Patents

Improvements relating to the production of granular fertilizers

Info

Publication number
GB958471A
GB958471A GB4519862A GB4519862A GB958471A GB 958471 A GB958471 A GB 958471A GB 4519862 A GB4519862 A GB 4519862A GB 4519862 A GB4519862 A GB 4519862A GB 958471 A GB958471 A GB 958471A
Authority
GB
United Kingdom
Prior art keywords
gas
salt
slag
production
improvements relating
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
GB4519862A
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.)
Dortmund Hoerder Huettenunion AG
Original Assignee
Dortmund Hoerder Huettenunion AG
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 Dortmund Hoerder Huettenunion AG filed Critical Dortmund Hoerder Huettenunion AG
Publication of GB958471A publication Critical patent/GB958471A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B5/00—Thomas phosphate; Other slag phosphates

Landscapes

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

Abstract

A fertilizer is made by mixing ground basic slag, e.g. Thomas phosphate slag, with up to 10% of its weight of a water-soluble crystalline salt, wetting the mixture, granulating and drying in a gas containing sufficient carbon dioxide to react with the lime present in the slag to form calcium carbonate, which binds the particles together within the grains. The salt may be a potassium salt or rock salt. The granules may be dried in gas at at least 100 DEG C. and obtained by burning blast-furnace gas, producer gas, coke-oven gas or natural gas.
GB4519862A 1961-12-02 1962-11-29 Improvements relating to the production of granular fertilizers Expired GB958471A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE1961D0037593 DE1241846B (en) 1961-12-02 1961-12-02 Process for the production of non-dusting, abrasion-resistant, grainy and spreadable Thomas phosphate fertilizers
DED0039832 1962-09-12
DED0039882 1962-09-20

Publications (1)

Publication Number Publication Date
GB958471A true GB958471A (en) 1964-05-21

Family

ID=27209722

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4519862A Expired GB958471A (en) 1961-12-02 1962-11-29 Improvements relating to the production of granular fertilizers

Country Status (3)

Country Link
DE (1) DE1241846B (en)
GB (1) GB958471A (en)
LU (1) LU42787A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1294980B (en) * 1963-04-09 1969-05-14 Scholven Chemie Ag Process for the production of granulated multi-nutrient fertilizers from Thomas phosphate, ammonium salts and possibly potassium salts

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE663410C (en) * 1932-07-01 1938-08-05 Theodor Wilhelm Pfirrmann Dr Process and device for graining fertilizers or other substances or mixtures of substances
DE634444C (en) * 1932-08-10 1936-08-28 Bayerische Stickstoffwerke Akt Process for the production of durable grains from fertilizers containing free lime
DE689602C (en) * 1938-09-01 1940-04-02 Kaiser Wilhelm Inst Fuer Eisen Process for dedusting and graining Thomas flour
DE707211C (en) * 1939-07-04 1941-06-16 Kaiser Wilhelm Inst Fuer Eisen Process for dusting and graining Thomas flour
DE973396C (en) * 1952-10-19 1960-02-11 Wintershall Ag Process for the production of non-separable and non-dusting mixed fertilizers from Thomas phosphate and potash salts
DE1100657B (en) * 1959-02-17 1961-03-02 Metallgesellschaft Ag Process for the production of granulated fertilizers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1294980B (en) * 1963-04-09 1969-05-14 Scholven Chemie Ag Process for the production of granulated multi-nutrient fertilizers from Thomas phosphate, ammonium salts and possibly potassium salts

Also Published As

Publication number Publication date
LU42787A1 (en) 1963-01-30
DE1241846B (en) 1967-06-08

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