GB705270A - Improvements in and relating to fertilisers - Google Patents

Improvements in and relating to fertilisers

Info

Publication number
GB705270A
GB705270A GB31341/50A GB3134150A GB705270A GB 705270 A GB705270 A GB 705270A GB 31341/50 A GB31341/50 A GB 31341/50A GB 3134150 A GB3134150 A GB 3134150A GB 705270 A GB705270 A GB 705270A
Authority
GB
United Kingdom
Prior art keywords
per cent
granulation
treated
salt
per
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
GB31341/50A
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.)
Bergwerksgesellschaft Hibernia AG
Original Assignee
Bergwerksgesellschaft Hibernia 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 Bergwerksgesellschaft Hibernia AG filed Critical Bergwerksgesellschaft Hibernia AG
Publication of GB705270A publication Critical patent/GB705270A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2/00Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • B01J2/30Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic using agents to prevent the granules sticking together; Rendering particulate materials free flowing in general, e.g. making them hydrophobic

Landscapes

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

Abstract

Calcium or ammonium nitrate is treated with aqueous solutions of alkali metal silicates having a concentration not less than 4 per cent. and not more than 12 per cent., the quantity of silicate used being less than 1 per cent. based on the quantity of salt treated. The silicate solution may be employed during or after granulation or applied to the melted salt. An example compares the crushing strength and moisture absorption of ammonium nitrate treated with (1) powdered limestone followed by granulation, (2) adding chalk to the molten salt and spraying in air, (3) as in (2) followed by powdering the grain with infusorial silica, (4) as in (1) except that 6 kilograms of a 4 per cent. silicate solution per 100 kg. of fertilizer are added during granulation, (5) as in (1) but after granulation the salt is treated with 2 kgs. of a 12 per cent. silicate solution per 100 kgs. of fertilizer, (6) adding 2 kgs. of a 12 per cent. silicate solution per 100 kgs. of melted salt. Specifications 135,847 and 195,655, [both in Class 1 (ii)], are referred to.ALSO:Fertilizers particularly those where a weak base is combined with a strong acid are treated with an aqueous solution of an alkali metal silicate having a concentration of not less than 4 per cent and not more than 12 per cent so that the quantity of silicate used is less than 1 per cent used on the fertilizer. The silicate solution may be employed during or after granulation or mixed with a melted fertilizer salt, an example compares the working strength and moisture absorption of ammonium nitrate treated with (1) powdered limestone followed by granulation, (2) adding chalk to the molten salt and spraying in air, (3) as in (2) followed by powdering the grain with infusorial silica, (4) as in (1) except that 6 kilograms of a 4 per cent sodium silicate solution per 100 kilograms of fertilizer are added during granulation, (5) as in (1) but after granulation the salt was treated with 2 kg. of a 12 per cent silicate solution per 100 kg. of fertilizer, (6) adding 2 kg. of a 12 per cent silicate solution per 100 kgs. of the melted salt. Calcium nitrate may be similarly treated. Specifications 135,847 and 195,655, [both in Class 111], are referred to.
GB31341/50A 1949-12-27 1950-12-27 Improvements in and relating to fertilisers Expired GB705270A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE705270X 1949-12-27

Publications (1)

Publication Number Publication Date
GB705270A true GB705270A (en) 1954-03-10

Family

ID=6616863

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31341/50A Expired GB705270A (en) 1949-12-27 1950-12-27 Improvements in and relating to fertilisers

Country Status (1)

Country Link
GB (1) GB705270A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2575084A1 (en) * 1984-12-24 1986-06-27 Produits Ind Cie Fse METHOD AND COMPOSITION FOR ANTIMOTTING SALTS OR NON-POWDERY FERTILIZERS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2575084A1 (en) * 1984-12-24 1986-06-27 Produits Ind Cie Fse METHOD AND COMPOSITION FOR ANTIMOTTING SALTS OR NON-POWDERY FERTILIZERS
EP0188969A1 (en) * 1984-12-24 1986-07-30 Compagnie Francaise De Produits Industriels Process and composition for preventing the agglomeration of non-powdery salts and fertilizers

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