GB1166094A - Improvements in a Process for Conveying Vapourized Substances Under Vacuum and Apparatus for carrying out such a Process - Google Patents
Improvements in a Process for Conveying Vapourized Substances Under Vacuum and Apparatus for carrying out such a ProcessInfo
- Publication number
- GB1166094A GB1166094A GB48129/66A GB4812966A GB1166094A GB 1166094 A GB1166094 A GB 1166094A GB 48129/66 A GB48129/66 A GB 48129/66A GB 4812966 A GB4812966 A GB 4812966A GB 1166094 A GB1166094 A GB 1166094A
- Authority
- GB
- United Kingdom
- Prior art keywords
- supplied
- condenser
- jet pump
- vacuum
- deposits
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G63/00—Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
- C08G63/78—Preparation processes
- C08G63/785—Preparation processes characterised by the apparatus used
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0003—Condensation of vapours; Recovering volatile solvents by condensation by using heat-exchange surfaces for indirect contact between gases or vapours and the cooling medium
- B01D5/0021—Vortex
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0033—Other features
- B01D5/0045—Vacuum condensation
-
- 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
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
- B01J3/02—Feed or outlet devices therefor
-
- 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
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F15/00—Other methods of preventing corrosion or incrustation
- C23F15/005—Inhibiting incrustation
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B31/00—Electric arc lamps
- H05B31/0003—Electric arc lamps the arc being outside, in the open
- H05B31/0015—Electric arc lamps the arc being outside, in the open with spare electrodes
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Polyesters Or Polycarbonates (AREA)
- Gas Separation By Absorption (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1,166,094. Vacuum apparatus; prevention of deposits in outlet conduits. KARL FISCHER APPARATE-U ROHRLEITUNGSBAU and CHATILLOW SOC. ANON. ITALIANA PER LE FIBRE. TESSILI ARTIFICIALI S.p.A. 26 Oct., 1966 [11 Nov., 1965], No. 48129/66. Headings B1B and B1X. Vapours with solid particles in suspension, liberated during a vacuum process in vessel 1, are drawn through pipe 3 into a spray condenser 4 which is attached to jet pump 5, both of which are operated by a non-aqueous solvent which dissolves and washes away any deposits of solid matter which would otherwise form on the inner walls of the apparatus. The head 6 of condenser 5 is provided with a heating jacket 7; and with a rotating worm 8a. In order to carry out the polymerization of bis-(2-hydroxyethyl)-terephthalate, it is spread as a thin layer on the inner wall of vessel 1, which is heated by a jacket. Ethylene glycol vapour is liberated, and is drawn through pipe 3 into spray condenser 4 which is supplied through nozzles 12 and 13 with liquid ethylene glycol. Jet pump 5 is surrounded by heating jacket 16, and is supplied with glycol vapour through nozzle 18. The vapours leaving the jet pump enter spray condenser 19 which is supplied with liquid glycol through nozzle 20. The lower openings 11 and 22 of condensers 4 and 19, respectively, are connected to barometric tubes (not shown). A conventional steam-jet vacuum pump, supplied with steam and warm water, may be used to withdraw inert gases from condenser 19 through outlet 21. An extensive list of organic solvents, which may be utilized in the apparatus, is given.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2498565 | 1965-11-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1166094A true GB1166094A (en) | 1969-10-01 |
Family
ID=11215330
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB48129/66A Expired GB1166094A (en) | 1965-11-11 | 1966-10-26 | Improvements in a Process for Conveying Vapourized Substances Under Vacuum and Apparatus for carrying out such a Process |
Country Status (5)
Country | Link |
---|---|
US (1) | US3468849A (en) |
JP (1) | JPS4910432B1 (en) |
CH (1) | CH487345A (en) |
GB (1) | GB1166094A (en) |
NL (1) | NL151011B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005018843A1 (en) * | 2005-04-22 | 2006-10-26 | Zimmer Ag | Vacuum generation and separation of volatile compound in transesterification-, esterification- or polycondensation reaction, comprises connecting suction-side evacuating reactor/vapor radiator with spraying condenser before/after switched |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2409343B2 (en) * | 1974-02-27 | 1979-06-28 | Akzo Gmbh, 5600 Wuppertal | Process for removing the vaporous reaction products in the production of polyesters, in particular polyethylene terephthalate |
US4154921A (en) * | 1978-06-19 | 1979-05-15 | E. I. Du Pont De Nemours And Company | Preparation of polyesters |
US4935171A (en) * | 1989-01-27 | 1990-06-19 | Vestar, Inc. | Method for vesicle formation |
DE4419397A1 (en) * | 1994-06-03 | 1995-12-14 | Zimmer Ag | Process for multi-stage vacuum generation in polyester production |
DE4440741A1 (en) * | 1994-11-15 | 1996-05-23 | Zimmer Ag | Vacuum generation process in polycarbonate production |
US5466765A (en) * | 1995-03-09 | 1995-11-14 | Eastman Chemical Company | Vaccum system for controlling pressure in a polyester process |
US6380451B1 (en) * | 1999-12-29 | 2002-04-30 | Phillips Petroleum Company | Methods for restoring the heat transfer coefficient of an oligomerization reactor |
PT2311897E (en) | 2000-12-07 | 2015-08-25 | Grupo Petrotemex Sa De Cv | Low cost polyester process using a pipe reactor |
US6906164B2 (en) | 2000-12-07 | 2005-06-14 | Eastman Chemical Company | Polyester process using a pipe reactor |
US7135541B2 (en) | 2003-06-06 | 2006-11-14 | Eastman Chemical Company | Polyester process using a pipe reactor |
US7074879B2 (en) | 2003-06-06 | 2006-07-11 | Eastman Chemical Company | Polyester process using a pipe reactor |
DE102004010146B4 (en) | 2004-02-27 | 2006-02-16 | Zimmer Ag | Process and apparatus for the production of polyesters and copolyesters |
US7332548B2 (en) | 2004-03-04 | 2008-02-19 | Eastman Chemical Company | Process for production of a polyester product from alkylene oxide and carboxylic acid |
US7649109B2 (en) | 2006-12-07 | 2010-01-19 | Eastman Chemical Company | Polyester production system employing recirculation of hot alcohol to esterification zone |
US7943094B2 (en) | 2006-12-07 | 2011-05-17 | Grupo Petrotemex, S.A. De C.V. | Polyester production system employing horizontally elongated esterification vessel |
US7863477B2 (en) | 2007-03-08 | 2011-01-04 | Eastman Chemical Company | Polyester production system employing hot paste to esterification zone |
US7872089B2 (en) | 2007-07-12 | 2011-01-18 | Eastman Chemical Company | Multi-level tubular reactor with internal tray |
US7868129B2 (en) | 2007-07-12 | 2011-01-11 | Eastman Chemical Company | Sloped tubular reactor with spaced sequential trays |
US7872090B2 (en) | 2007-07-12 | 2011-01-18 | Eastman Chemical Company | Reactor system with optimized heating and phase separation |
US7858730B2 (en) | 2007-07-12 | 2010-12-28 | Eastman Chemical Company | Multi-level tubular reactor with dual headers |
US7842777B2 (en) | 2007-07-12 | 2010-11-30 | Eastman Chemical Company | Sloped tubular reactor with divided flow |
US7829653B2 (en) | 2007-07-12 | 2010-11-09 | Eastman Chemical Company | Horizontal trayed reactor |
US7847053B2 (en) | 2007-07-12 | 2010-12-07 | Eastman Chemical Company | Multi-level tubular reactor with oppositely extending segments |
US7868130B2 (en) | 2007-07-12 | 2011-01-11 | Eastman Chemical Company | Multi-level tubular reactor with vertically spaced segments |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2793235A (en) * | 1954-09-27 | 1957-05-21 | Du Pont | Recovery of glycols from polyester production |
NO116966B (en) * | 1964-06-01 | 1969-06-16 | Consanto Co | |
US3315879A (en) * | 1966-04-22 | 1967-04-25 | Irving C Jennings | Evacuation system |
-
1966
- 1966-06-22 CH CH905166A patent/CH487345A/en not_active IP Right Cessation
- 1966-07-26 NL NL666610502A patent/NL151011B/en not_active IP Right Cessation
- 1966-10-14 JP JP41067237A patent/JPS4910432B1/ja active Pending
- 1966-10-26 GB GB48129/66A patent/GB1166094A/en not_active Expired
- 1966-11-08 US US592793A patent/US3468849A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005018843A1 (en) * | 2005-04-22 | 2006-10-26 | Zimmer Ag | Vacuum generation and separation of volatile compound in transesterification-, esterification- or polycondensation reaction, comprises connecting suction-side evacuating reactor/vapor radiator with spraying condenser before/after switched |
Also Published As
Publication number | Publication date |
---|---|
NL6610502A (en) | 1967-05-12 |
JPS4910432B1 (en) | 1974-03-11 |
CH487345A (en) | 1970-03-15 |
US3468849A (en) | 1969-09-23 |
NL151011B (en) | 1976-10-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PE | Patent expired |