ES342036A1 - Manufacture of small spherical particles - Google Patents

Manufacture of small spherical particles

Info

Publication number
ES342036A1
ES342036A1 ES342036A ES342036A ES342036A1 ES 342036 A1 ES342036 A1 ES 342036A1 ES 342036 A ES342036 A ES 342036A ES 342036 A ES342036 A ES 342036A ES 342036 A1 ES342036 A1 ES 342036A1
Authority
ES
Spain
Prior art keywords
carrier liquid
capsules
liquid
conduit
vessel
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
ES342036A
Other languages
Spanish (es)
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.)
Southwest Research Institute SwRI
Original Assignee
Southwest Research Institute SwRI
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
Priority claimed from US558796A external-priority patent/US3389194A/en
Application filed by Southwest Research Institute SwRI filed Critical Southwest Research Institute SwRI
Publication of ES342036A1 publication Critical patent/ES342036A1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/02—Making granules by dividing preformed material
    • B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
    • A61J3/00—Devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms
    • A61J3/07—Devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms into the form of capsules or similar small containers for oral use
    • 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
    • B01J2/20—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by expressing the material, e.g. through sieves and fragmenting the extruded length

Abstract

Small spherical hardened particles are produced by extruding a stream of liquid material, e.g. molten wax, within a confined stream of carrier liquid, e.g. hot water which is chemically non-reactive and physically immiscible with the material, and which flows at a speed greater than the rate of extrusion of the said material causing it to break up into spherical particles which are then hardened, e.g. by cooling the carrier liquid. Apparatus providing hardened capsules in which a filler material is encased within a shell of film material comprises a conduit 10 with coaxial inner and outer tubes 11, 12 through which hot melts of filler material and film forming material respectively are fed from receptacles 15 and 14. On leaving the ends of the tubes the two extruded streams are met by a hot stream of carrier liquid supplied by conduit 20 to the conduit 10 and which, passing through a convergent part 10c, flows at a greater speed than the material streams and breaks them up into capsules which are carried through a section 10b to a vessel 24. The capsules float in the vessel and pass to a screen conveyer 26 and are received in a container 271, carrier liquid is returned to the conduit 20 for recirculation. A heat exchanger 19 cools the carrier liquid and a heat exchanger 23 heats it. In a modified apparatus, instead of hardening the capsules by cooling, the capsules are conveyed by the liquid carrier to a vessel containing a liquid hardening medium immiscible with the carrier liquid, and the two liquids stratify in the vessel so that the capsules fall through the carrier liquid and pass to an outlet from which they are received by a conveyer. In this embodiment each capsule may comprise a filler of hexane within a shell of aqueous sodium alginate the carrier liquid may be naphtha and the hardening medium aqueous calcium chloride.
ES342036A 1966-06-20 1967-06-20 Manufacture of small spherical particles Expired ES342036A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US558796A US3389194A (en) 1964-12-07 1966-06-20 Method for mass producing small spherical particles

Publications (1)

Publication Number Publication Date
ES342036A1 true ES342036A1 (en) 1968-10-16

Family

ID=24231021

Family Applications (2)

Application Number Title Priority Date Filing Date
ES342036A Expired ES342036A1 (en) 1966-06-20 1967-06-20 Manufacture of small spherical particles
ES353961A Expired ES353961A1 (en) 1966-06-20 1968-05-16 Manufacture of small spherical particles

Family Applications After (1)

Application Number Title Priority Date Filing Date
ES353961A Expired ES353961A1 (en) 1966-06-20 1968-05-16 Manufacture of small spherical particles

Country Status (11)

Country Link
AT (1) AT278722B (en)
BE (1) BE699995A (en)
CH (1) CH478590A (en)
DE (1) DE1667264B2 (en)
DK (1) DK133965B (en)
ES (2) ES342036A1 (en)
GB (1) GB1134535A (en)
LU (1) LU53905A1 (en)
NL (1) NL153097B (en)
NO (1) NO129442B (en)
SE (1) SE342149B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110871111A (en) * 2018-08-31 2020-03-10 中国石油化工股份有限公司 Balling device and preparation method of spherical carrier

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6168733B1 (en) 1998-08-31 2001-01-02 Eastman Chemical Company Method for forming discrete pellets from viscous materials
TWI227170B (en) * 1999-12-20 2005-02-01 Chugai Pharmaceutical Co Ltd The process for preparation of seamless capsules
US20070082045A1 (en) * 2003-11-07 2007-04-12 Kuniaki Yamanaka Seamless capsule manufacturing method, seamless capsule manufacturing device and seamless capsule
CN113212100B (en) * 2021-06-02 2022-08-16 合肥工业大学 Pure electric vehicle integrated heat management system and method based on phase change capsules

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110871111A (en) * 2018-08-31 2020-03-10 中国石油化工股份有限公司 Balling device and preparation method of spherical carrier

Also Published As

Publication number Publication date
DK133965C (en) 1977-01-31
LU53905A1 (en) 1968-03-08
CH478590A (en) 1969-09-30
ES353961A1 (en) 1969-10-16
NL6707885A (en) 1967-12-21
BE699995A (en) 1967-12-15
GB1134535A (en) 1968-11-27
NL153097B (en) 1977-05-16
SE342149B (en) 1972-01-31
DE1667264A1 (en) 1971-06-09
DE1667264B2 (en) 1976-10-28
NO129442B (en) 1974-04-16
DK133965B (en) 1976-08-23
AT278722B (en) 1970-02-10

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