GB869143A - Method of isolating solids from solutions or suspensions - Google Patents

Method of isolating solids from solutions or suspensions

Info

Publication number
GB869143A
GB869143A GB955/58A GB95558A GB869143A GB 869143 A GB869143 A GB 869143A GB 955/58 A GB955/58 A GB 955/58A GB 95558 A GB95558 A GB 95558A GB 869143 A GB869143 A GB 869143A
Authority
GB
United Kingdom
Prior art keywords
suspension
solution
copolymer
zone
chloride
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
GB955/58A
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.)
Hoechst AG
Original Assignee
Hoechst AG
Farbwerke Hoechst 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 Hoechst AG, Farbwerke Hoechst AG filed Critical Hoechst AG
Publication of GB869143A publication Critical patent/GB869143A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/12—Powdering or granulating
    • C08J3/122—Pulverisation by spraying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D1/00—Evaporating
    • B01D1/16—Evaporating by spraying
    • B01D1/20—Sprayers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

A method of isolating a solid in a finely <PICT:0869143/III/1> divided state from a solution or suspension of the solid by atomization and drying by means of a spray drier, comprises supplying the same liquid as constitutes the solvent or dispersion medium present in the solution or suspension in the form of saturated vapour to the zone of droplet formation, and passing the droplets so formed into the drying zone proper. The sprayed material may be a solution or suspension of a halogenated or sulphohalogenated polyolefine such as polypropylene or polyethylene or of a copolymer of the corresponding monomer in carbon tetrachloride, chloroform, methylene chloride or tetrachloroethane. In addition, polyvinyl chloride, a copolymer of vinyl chloride, polyvinylidene chloride, polyethylene, polypropylene or a copolymer of ethylene with propylene may also be present. In a preferred embodiment, the solution or suspension is supplied through a central bore 3 of a cylindrical body 2 to the mouth 4 of the nozzle. The same liquid as constitutes the solvent or dispersing medium present in the solution or suspension is supplied in the form of saturated vapour through the annular passage 6. The nozzle produces a spray cone 7 which is surrounded by a zone 8 of the vapour.
GB955/58A 1957-01-09 1958-01-09 Method of isolating solids from solutions or suspensions Expired GB869143A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE869143X 1957-01-09

Publications (1)

Publication Number Publication Date
GB869143A true GB869143A (en) 1961-05-31

Family

ID=6802788

Family Applications (1)

Application Number Title Priority Date Filing Date
GB955/58A Expired GB869143A (en) 1957-01-09 1958-01-09 Method of isolating solids from solutions or suspensions

Country Status (1)

Country Link
GB (1) GB869143A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3596700A (en) * 1967-04-20 1971-08-03 Copolymer Rubber & Chem Corp Apparatus for recovering polymers from solution
FR2321515A1 (en) * 1975-08-06 1977-03-18 Exxon Research Engineering Co PROCESS FOR PRODUCING A FINE POWDER FROM A SYNTHETIC ORGANIC POLYMERIC RESIN
US4267131A (en) * 1977-01-25 1981-05-12 Rhone-Poulenc Industries Method for intimate contacting of plural phases and phase contactor apparatus therefor
US4970030A (en) * 1973-06-19 1990-11-13 Rhone-Poulenc Industries Process for contacting substances which occur in different phases
EP0503187A1 (en) * 1991-03-12 1992-09-16 Ohkawara Kakohki Co., Ltd. Two-fluid pressure nozzle of upward injection type
US5227017A (en) * 1988-01-29 1993-07-13 Ohkawara Kakohki Co., Ltd. Spray drying apparatus equipped with a spray nozzle unit
US5294298A (en) * 1991-06-10 1994-03-15 Ohkawara Kakohki Co., Ltd. Spray-drying granulation apparatus
US5499768A (en) * 1989-05-31 1996-03-19 Ohkawara Kakohki Co., Ltd. Spray nozzle unit

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3596700A (en) * 1967-04-20 1971-08-03 Copolymer Rubber & Chem Corp Apparatus for recovering polymers from solution
US4970030A (en) * 1973-06-19 1990-11-13 Rhone-Poulenc Industries Process for contacting substances which occur in different phases
FR2321515A1 (en) * 1975-08-06 1977-03-18 Exxon Research Engineering Co PROCESS FOR PRODUCING A FINE POWDER FROM A SYNTHETIC ORGANIC POLYMERIC RESIN
US4267131A (en) * 1977-01-25 1981-05-12 Rhone-Poulenc Industries Method for intimate contacting of plural phases and phase contactor apparatus therefor
US5227017A (en) * 1988-01-29 1993-07-13 Ohkawara Kakohki Co., Ltd. Spray drying apparatus equipped with a spray nozzle unit
US5499768A (en) * 1989-05-31 1996-03-19 Ohkawara Kakohki Co., Ltd. Spray nozzle unit
EP0503187A1 (en) * 1991-03-12 1992-09-16 Ohkawara Kakohki Co., Ltd. Two-fluid pressure nozzle of upward injection type
US5272820A (en) * 1991-03-12 1993-12-28 Ohkawara Kakohki, Co., Ltd. Two-fluid pressure nozzle of upward injection type, spray dryer using the nozzle, and method for control of droplet diameter in the nozzle
US5294298A (en) * 1991-06-10 1994-03-15 Ohkawara Kakohki Co., Ltd. Spray-drying granulation apparatus

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