GB654272A - Improvements in or relating to the pelleting of finely divided solid substances - Google Patents

Improvements in or relating to the pelleting of finely divided solid substances

Info

Publication number
GB654272A
GB654272A GB5595/48A GB559548A GB654272A GB 654272 A GB654272 A GB 654272A GB 5595/48 A GB5595/48 A GB 5595/48A GB 559548 A GB559548 A GB 559548A GB 654272 A GB654272 A GB 654272A
Authority
GB
United Kingdom
Prior art keywords
drum
finely
substance
pellets
divided
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
GB5595/48A
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.)
Monsanto Chemicals Ltd
Monsanto Chemical Co
Original Assignee
Monsanto Chemicals Ltd
Monsanto Chemical Co
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 Monsanto Chemicals Ltd, Monsanto Chemical Co filed Critical Monsanto Chemicals Ltd
Publication of GB654272A publication Critical patent/GB654272A/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
    • B01J2/12—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)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

654,272. Making pellets from finely-divided solids. MONSANTO CHEMICAL CO. Feb. 25, 1948, No. 5595. Convention date, July 19, 1943. [Class 87 (ii)] Pellets of phthalic anhydride, ferric sulphate, aluminium sulphate or sodium sulphate are formed by placing a mass of the substance, in a finely-divided state, in a drum 10, rotating the drum, and continuously supplying, through a pipe 18, additional finely-divided solids and either a substance which is a liquid, e.g. water, an aqueous solution of the substance or the substance in a molten state, or a substance which is solid but which melts on heating to react with the finely-divided solids into the mass of the substance below the surface of the mass. The liquid is preferably fed into a sparsely-filled region A, Fig. 2, caused by the rotation of the drum. By adjusting the amount of liquid and additional finely-divided material added to the drum, the material in the region A is kept relatively plastic. The temperature of the material may also be controlled by cooling or heating the drum, and cooling or heating the additional finely-divided solid material. The additional material is supplied by transferring pellets from the drum 10 to screens 25, 26 by screw conveyers 20, 21 and then feeding the fines through a pipe 30, and some of the pellets, after being ground in a grinder 28, through pipe 29, back to the drum by a conveyer 17. The drum may be inclined to increase the capacity of the drum and to remove selectively from the drum, the larger pellets. The pellets may be cooled, heated or dried after formation. Specification 654,246 is referred to. The Specification as open to inspection under Sect. 91 comprises also carrying out the process without the addition of finely-divided solids, by continuously supplying only hot molten liquid. This subject-matter does not appear in the Specification as accepted.
GB5595/48A 1943-07-19 1948-02-25 Improvements in or relating to the pelleting of finely divided solid substances Expired GB654272A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US654272XA 1943-07-19 1943-07-19

Publications (1)

Publication Number Publication Date
GB654272A true GB654272A (en) 1951-06-13

Family

ID=22062643

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5595/48A Expired GB654272A (en) 1943-07-19 1948-02-25 Improvements in or relating to the pelleting of finely divided solid substances

Country Status (1)

Country Link
GB (1) GB654272A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE945086C (en) * 1953-07-22 1956-06-28 Bayer Ag Process for coating the individual particles of powdery, preferably agglomerated or agglomerating substances
DE1002740B (en) * 1952-12-16 1957-02-21 Lonza Werke Elektrochemische F Process for the production of granulates from finely divided masses with the addition of carbonaceous substances for processing in electrothermal ovens or fan ovens, especially for the production of calcium carbide
DE1041472B (en) * 1956-04-19 1958-10-23 Bayer Ag Process for granulating powders into granules of the desired grain size without the addition of binders
DE1103900B (en) * 1955-12-14 1961-04-06 Salzdefurth Ver Kaliwerke Process for the production of uniform granulates from meltable materials
DE1122086B (en) * 1959-06-25 1962-01-18 Basf Ag Process for powdering granular mineral fertilizers
DE1158529B (en) * 1958-05-20 1963-12-05 Chemical And Ind Corp Process for the continuous production of fertilizer granules
DE1285462B (en) * 1965-06-18 1968-12-19 Stirling Harold Tamplin Granulating plate with inclined axis of rotation
DE1592724B1 (en) * 1964-03-24 1970-06-18 Polysius Ag Method and device for granulating dusty or flour-like fertilizers
DE1179192B (en) * 1958-03-10 1974-08-22
DE2906188A1 (en) * 1979-02-17 1980-08-21 Mathis Kalkwerk Fertiliser prodn. in granular form - by introducing dry, moist and wet constituents successively into rotary drum

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1002740B (en) * 1952-12-16 1957-02-21 Lonza Werke Elektrochemische F Process for the production of granulates from finely divided masses with the addition of carbonaceous substances for processing in electrothermal ovens or fan ovens, especially for the production of calcium carbide
DE945086C (en) * 1953-07-22 1956-06-28 Bayer Ag Process for coating the individual particles of powdery, preferably agglomerated or agglomerating substances
DE1103900B (en) * 1955-12-14 1961-04-06 Salzdefurth Ver Kaliwerke Process for the production of uniform granulates from meltable materials
DE1041472B (en) * 1956-04-19 1958-10-23 Bayer Ag Process for granulating powders into granules of the desired grain size without the addition of binders
DE1179192B (en) * 1958-03-10 1974-08-22
DE1179192C2 (en) * 1958-03-10 1974-08-22 PROCESS FOR THE PREPARATION OF ALKALINE SILICATES
DE1158529B (en) * 1958-05-20 1963-12-05 Chemical And Ind Corp Process for the continuous production of fertilizer granules
DE1122086B (en) * 1959-06-25 1962-01-18 Basf Ag Process for powdering granular mineral fertilizers
DE1592724B1 (en) * 1964-03-24 1970-06-18 Polysius Ag Method and device for granulating dusty or flour-like fertilizers
DE1285462B (en) * 1965-06-18 1968-12-19 Stirling Harold Tamplin Granulating plate with inclined axis of rotation
DE2906188A1 (en) * 1979-02-17 1980-08-21 Mathis Kalkwerk Fertiliser prodn. in granular form - by introducing dry, moist and wet constituents successively into rotary drum

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