GB813146A - Improvements in or relating to forming spherical particles - Google Patents

Improvements in or relating to forming spherical particles

Info

Publication number
GB813146A
GB813146A GB38182/56A GB3818256A GB813146A GB 813146 A GB813146 A GB 813146A GB 38182/56 A GB38182/56 A GB 38182/56A GB 3818256 A GB3818256 A GB 3818256A GB 813146 A GB813146 A GB 813146A
Authority
GB
United Kingdom
Prior art keywords
liquid
pulsations
drops
chamber
orifice
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
GB38182/56A
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.)
Universal Oil Products Co
Original Assignee
Universal Oil Products 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 Universal Oil Products Co filed Critical Universal Oil Products Co
Publication of GB813146A publication Critical patent/GB813146A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09H—PREPARATION OF GLUE OR GELATINE
    • C09H9/00—Drying of glue or gelatine
    • C09H9/04—Drying of glue or gelatine in the form of granules, e.g. beads
    • 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
    • B01J2/02—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops
    • 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
    • B01J2/02—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops
    • B01J2/06—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops in a liquid medium
    • 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
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
    • B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
    • B22F2009/086—Cooling after atomisation
    • B22F2009/0864—Cooling after atomisation by oil, other non-aqueous fluid or fluid-bed cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Glanulating (AREA)

Abstract

Solidifiable liquids are formed into spherical drops by maintaining a chamber 10 filled with the liquid, introduced at 13, under a suitable pressure and subjecting the liquid to periodic impulses by means of a diaphragm 11 and a vibrator 15 whereby the liquid streams issuing from orifices 12 in the base of the chamber become broken into drops or corrugated and ultimately broken into drops of uniform size. A vent 16 is provided to remove any trapped gas or vapour from the chamber. In examples, gelable alumina hydrosols were comminuted (a) by passing at the rate of 190 c.c. per minute through each orifice of diameter 3.175 mm. while being subjected to pulsations of frequency 55 c.p.s.; (b) by passing at the rate of <PICT:0813146/III/1> 99 c.c. per minute through each orifice of diameter 1.588 mm. while being subjected to pulsations of 150 c.p.s. The particles passed into hot oil at 93 DEG C. and after setting, ageing, washing and drying had diameters of 3.175 mm. and 1.588 mm. respectively. The process is compared with a prior process in which the discharge orifices (in the form of dropping tips) are vibrated instead of pulsations being applied to the liquid.
GB38182/56A 1955-12-16 1956-12-14 Improvements in or relating to forming spherical particles Expired GB813146A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US813146XA 1955-12-16 1955-12-16

Publications (1)

Publication Number Publication Date
GB813146A true GB813146A (en) 1959-05-13

Family

ID=22163395

Family Applications (1)

Application Number Title Priority Date Filing Date
GB38182/56A Expired GB813146A (en) 1955-12-16 1956-12-14 Improvements in or relating to forming spherical particles

Country Status (3)

Country Link
FR (1) FR1168178A (en)
GB (1) GB813146A (en)
NL (2) NL213021A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1157202B (en) * 1961-04-28 1963-11-14 Teerverwertung Gmbh Process for the granulation of meltable substances that are solid at normal temperature
DE1178043B (en) * 1960-12-14 1964-09-17 Kaiser Geb Method and device for producing granules from a melt
US3397258A (en) * 1965-12-15 1968-08-13 Sinclair Koppers Co Process for extruding spherical expandable particles
DE1295531B (en) * 1962-10-19 1969-05-22 Rosin Engineering Company Ltd Method and device for the production of granules from a melt
DE3035331A1 (en) * 1980-09-19 1982-04-15 Nukem Gmbh, 6450 Hanau DEVICE FOR PRODUCING SPHERICAL PARTICLES
WO1993013897A1 (en) * 1992-01-16 1993-07-22 Sprayforming Developments Ltd. Process for producing a spray of metal powder
EP0776726A1 (en) * 1995-06-13 1997-06-04 Nihon Almit Co.,Ltd. Solid sphere manufacturing device

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT323114B (en) * 1973-05-07 1975-06-25 Voest Ag PROCEDURE FOR PRILLING
DE2635147C3 (en) * 1976-08-05 1979-02-08 Sandvik Conveyor Gmbh, 7012 Fellbach Device for the production of solid particles
GB8608820D0 (en) * 1986-04-11 1986-05-14 Russel D B Masterbatch production

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1178043B (en) * 1960-12-14 1964-09-17 Kaiser Geb Method and device for producing granules from a melt
DE1157202B (en) * 1961-04-28 1963-11-14 Teerverwertung Gmbh Process for the granulation of meltable substances that are solid at normal temperature
DE1295531B (en) * 1962-10-19 1969-05-22 Rosin Engineering Company Ltd Method and device for the production of granules from a melt
US3397258A (en) * 1965-12-15 1968-08-13 Sinclair Koppers Co Process for extruding spherical expandable particles
DE3035331A1 (en) * 1980-09-19 1982-04-15 Nukem Gmbh, 6450 Hanau DEVICE FOR PRODUCING SPHERICAL PARTICLES
WO1993013897A1 (en) * 1992-01-16 1993-07-22 Sprayforming Developments Ltd. Process for producing a spray of metal powder
EP0776726A1 (en) * 1995-06-13 1997-06-04 Nihon Almit Co.,Ltd. Solid sphere manufacturing device
EP0776726A4 (en) * 1995-06-13 1999-01-27 Nihon Almit Co Ltd Solid sphere manufacturing device

Also Published As

Publication number Publication date
FR1168178A (en) 1958-12-04
NL213021A (en)
NL100194C (en)

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