GB1316796A - Apparatus for concentrating a solution or suspension - Google Patents

Apparatus for concentrating a solution or suspension

Info

Publication number
GB1316796A
GB1316796A GB5763970A GB5763970A GB1316796A GB 1316796 A GB1316796 A GB 1316796A GB 5763970 A GB5763970 A GB 5763970A GB 5763970 A GB5763970 A GB 5763970A GB 1316796 A GB1316796 A GB 1316796A
Authority
GB
United Kingdom
Prior art keywords
chamber
solvent
solution
suspension
solid
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
GB5763970A
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.)
Bayer AG
Original Assignee
Bayer 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 Bayer AG filed Critical Bayer AG
Publication of GB1316796A publication Critical patent/GB1316796A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/06—Flash distillation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/285—Feeding the extrusion material to the extruder
    • B29C48/29—Feeding the extrusion material to the extruder in liquid form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/76—Venting, drying means; Degassing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/76—Venting, drying means; Degassing means
    • B29C48/765—Venting, drying means; Degassing means in the extruder apparatus
    • B29C48/766—Venting, drying means; Degassing means in the extruder apparatus in screw extruders
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F6/00—Post-polymerisation treatments
    • C08F6/001—Removal of residual monomers by physical means
    • C08F6/003—Removal of residual monomers by physical means from polymer solutions, suspensions, dispersions or emulsions without recovery of the polymer therefrom
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion

Abstract

1316796 Evaporators, flash type; separation of solvent from polymer solution BAYER AG 4 Dec 1970 [24 Dec 1969] 57639/70 Heading B1B Solid material, e.g. a polymer, is separated from a solution or suspension by introducing it through pipe 1 and nozzle 2 into flash evaporation chamber 3; the solvent vapours leave the chamber through pipe 6, and the solid is discharged by a device 11 comprising at least two mutually-scraping cylindrical screw shafts. The device 11 may comprise four screw shafts arranged in V-formation. The walls of the chamber 3 are equipped with a cooling jacket 5, so that some of the solvent vapour condenses thereon to form a film of liquid which prevents the formation of solid deposits. The housing of the device 11 is equipped with heating and/or cooling jackets 15, 16. The nozzle 2 is provided with an adjustable throttling device 17, and also with a cooling element (not shown).
GB5763970A 1969-12-24 1970-12-04 Apparatus for concentrating a solution or suspension Expired GB1316796A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1964949A DE1964949C3 (en) 1969-12-24 1969-12-24 Device for concentrating a solution or suspension

Publications (1)

Publication Number Publication Date
GB1316796A true GB1316796A (en) 1973-05-16

Family

ID=5755009

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5763970A Expired GB1316796A (en) 1969-12-24 1970-12-04 Apparatus for concentrating a solution or suspension

Country Status (8)

Country Link
JP (1) JPS5133869B1 (en)
BE (1) BE760821A (en)
CH (1) CH510449A (en)
DE (1) DE1964949C3 (en)
FR (1) FR2072061B1 (en)
GB (1) GB1316796A (en)
NL (1) NL7017329A (en)
SE (1) SE377765B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4011382A1 (en) * 1990-04-07 1991-10-10 Bayer Ag CONTINUOUS METHOD FOR SEPARATING SOLUTIONS AND SUSPENSIONS IN A GIANT-PROOF SOLID AND IN A FAR-FREE SOLID DISTILLATE
DE10001256A1 (en) * 2000-01-14 2001-07-19 Bayer Ag Continuous drying and gel formation of polymers containing solvents, e.g. cellulose ether, involves flash evaporation at reduced pressure

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3244688A (en) * 1962-04-16 1966-04-05 Phillips Petroleum Co Process for processing of polymers

Also Published As

Publication number Publication date
DE1964949B2 (en) 1976-05-20
FR2072061A1 (en) 1971-09-24
FR2072061B1 (en) 1973-02-02
DE1964949A1 (en) 1971-07-01
BE760821A (en) 1971-05-27
CH510449A (en) 1971-07-31
NL7017329A (en) 1971-06-28
DE1964949C3 (en) 1980-09-25
JPS5133869B1 (en) 1976-09-22
SE377765B (en) 1975-07-28

Similar Documents

Publication Publication Date Title
GB1243011A (en) A process and an apparatus for carrying out evaporations, rectifications and liquid-vapour reactions
GB923889A (en) Construction and arrangement of wipers in thin-film evaporators
GB958955A (en) Improvements in or relating to evaporators
GB1316796A (en) Apparatus for concentrating a solution or suspension
US3620282A (en) Falling film evaporator for concentrating liquids
GB1273248A (en) Film evaporator for producing powders from solutions or dispersions of solids in liquids
GB1147960A (en) Apparatus for treating a moving film of liquid
GB1026393A (en) Process and apparatus for the removal of volatile components from viscous liquids by evaporation
GB1282992A (en) Process for concentrating polymer solutions by evaporation
GB983690A (en) Vacuum separator
GB1183685A (en) Falling Film Evaporator.
GB996848A (en) Apparatus for the thin-film treatment of liquids
GB1257824A (en)
GB1184015A (en) Apparatus for Evaporating Liquids
GB1193221A (en) Process and Apparatus for Drying Solutions
US3809140A (en) Concentration of materials
GB1185880A (en) Improvements in or relating to Wiper Blade Assemblies for Evaporators
GB1188906A (en) Thin Film Continuous Evaporating Apparatus.
GB1330890A (en) Process and apparatus for concentrating a solution or suspension
GB1082428A (en) Improvements in or relating to the distillation of liquids
SE8207061D0 (en) SET AND DEVICE FOR EVAPORATION OF LIQUID
GB1139875A (en) Horizontal-type vacuum film evaporator for highly viscous solutions
GB1225254A (en)
GB1060858A (en) A process of, and apparatus for, evaporating liquids
GB942846A (en) Improvements in or relating to the evaporation of solutions

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee