GB535470A - A process for the granulation of superphosphate - Google Patents

A process for the granulation of superphosphate

Info

Publication number
GB535470A
GB535470A GB21759/39A GB2175939A GB535470A GB 535470 A GB535470 A GB 535470A GB 21759/39 A GB21759/39 A GB 21759/39A GB 2175939 A GB2175939 A GB 2175939A GB 535470 A GB535470 A GB 535470A
Authority
GB
United Kingdom
Prior art keywords
effected
stage
superphosphate
movement
mass
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
GB21759/39A
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.)
SILESIA VER CHEMISCHER FABRIKE
Original Assignee
SILESIA VER CHEMISCHER FABRIKE
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 SILESIA VER CHEMISCHER FABRIKE filed Critical SILESIA VER CHEMISCHER FABRIKE
Publication of GB535470A publication Critical patent/GB535470A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B19/00—Granulation or pelletisation of phosphatic fertilisers, other than slag
    • C05B19/02—Granulation or pelletisation of phosphatic fertilisers, other than slag of superphosphates or mixtures containing them

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Fertilizers (AREA)
  • Fodder In General (AREA)

Abstract

535,470. Superphosphate. SILESIA, VEREIN CHEMISOHER FABRIKEN. July 26, 1939. No. 21759. Convention date, Aug. 15, 1938. [Class 1 (iii)] Superphosphate is granulated by converting it into a plastic mass by mechanical treatment involving pressure and movement, and then treating the plastified mass by simultaneous movement and heating. The first stage may be effected by means of edge mills, extrusion presses or pressing worms. and the second stage may be effected in rotary tubes or mixing drums which may be internally or externally heated. An example is given, in which the second stage is effected at 120‹C. Specification 491,841 is referred to.
GB21759/39A 1938-08-16 1939-07-26 A process for the granulation of superphosphate Expired GB535470A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES133430D DE747197C (en) 1938-08-16 1938-08-16 Process for coring superphosphate

Publications (1)

Publication Number Publication Date
GB535470A true GB535470A (en) 1941-04-10

Family

ID=7539396

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21759/39A Expired GB535470A (en) 1938-08-16 1939-07-26 A process for the granulation of superphosphate

Country Status (3)

Country Link
DE (1) DE747197C (en)
FR (1) FR858669A (en)
GB (1) GB535470A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE969267C (en) * 1951-08-09 1958-05-14 Chemische Werke Rombach G M B Process for the production of grained or shaped superphosphate
DE1004630B (en) * 1954-05-11 1957-03-21 Saint Gobain Process for the production of granulated superphosphate

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR495578A (en) * 1918-01-14 1919-10-11 Thomas Hill Process for the manufacture of superphosphates
GB407988A (en) * 1931-08-22 1934-03-22 Henry Ernest Dod Improvement in process of producing concentrated fertilizer
US1985810A (en) * 1932-04-18 1934-12-25 Wight Edward Hyatt Preparation of superphosphate
FR757814A (en) * 1932-06-30 1934-01-05 Method and device for the production of granulated materials
DK51447C (en) * 1934-04-21 1936-03-30 Bamag Meguin Ag Method for the Preparation of Irradiated Superphosphate Mixture Fertilizers.
FR822891A (en) * 1935-12-11 1938-01-10 Davison Chemical Corp Improvements in superphosphate treatment processes

Also Published As

Publication number Publication date
DE747197C (en) 1944-09-13
FR858669A (en) 1940-11-30

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