US2206507A - Device for breaking froth - Google Patents

Device for breaking froth Download PDF

Info

Publication number
US2206507A
US2206507A US206187A US20618738A US2206507A US 2206507 A US2206507 A US 2206507A US 206187 A US206187 A US 206187A US 20618738 A US20618738 A US 20618738A US 2206507 A US2206507 A US 2206507A
Authority
US
United States
Prior art keywords
froth
liquid
piston
tube
distillation
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 - Lifetime
Application number
US206187A
Other languages
English (en)
Inventor
Kuhni Hans
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.)
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
Air Liquide SA
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 Air Liquide SA filed Critical Air Liquide SA
Application granted granted Critical
Publication of US2206507A publication Critical patent/US2206507A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D19/00—Degasification of liquids
    • B01D19/02—Foam dispersion or prevention

Definitions

  • the composition of. the froth is in most cases not the same as that of the remaining liquid and when the liquid resulting from the froth remains on the surface of. the remaining liquid, as takes place with the mentioned known devices, the froth forms again immediately and the desired mixing up with the liquid does not take place.
  • the plates formed with slots which occupy the whole section of the apparatus moreover so reduce in many cases the section for the passage of. the vapor, that an objectionable increase of the counter-pressure takes place.
  • This device comprises a substantially vertical tube open at both its ends, the lower end of which is immersed in the liquid and into which the froth overflows at its upper end, and [in a piston movable inside the tube, the uppermost position of which is above the tube, and which forces the froth downward and drives it back into the liquid.
  • the device fundamentally consists in a piston compressor.
  • the space required is relatively small, so that the flow of the vapor is not checked.
  • the complete destruction'of even the smallest froth bubbles as well as a thorough mixing up of the liquid forming therefrom with the qty remaining liquid is obtained in satisfactory manner.
  • The'device may be utilized with advantage in distillation columns in which foaming worts are treated.
  • the overflows of these distillation columns are shaped as compression cylinders and the pistons-of these cylinders, which are arranged one above the other, are afilxed to a common movable rod.
  • the liquid is necessarily pumped through a column provided with the device, and the accumulations of liquid and froth which often take place and disturb the regular operation of'the apparatus are'avoided. In order to allow the froth time enough to overflow intothe cylinder.
  • the piston should be present within the cylinder for a relatively small time only.
  • the actuating device is so designed that it allows for a rest position of the piston in its uppermost position and that the 5 downward movement of the piston takes place with high velocity.
  • Figures 1 to 3 diagrammatically show examples of the device according to the invention.
  • Figure 1 shows a device introduced into a boiling apparatus
  • Figure 2 shows a device according to the invention in combination with a 15 distillation apparatus with several rectification plates
  • Figure 3 shows on an enlarged scale one of the elements of the device according to Figure 2.
  • the boiling apparatus A which is 20 heated by means of the heating coil B, contains a tube disposed vertically, open at both its ends and the lower part of which D is narrower than the upper part C.
  • the tube dips into the boiling liquid.
  • the froth E overflows into the tube.
  • a reciprocating piston F gliding along the lateral wall of the upper part C of the tube forces at regular intervals the froth into the liquid.
  • the piston is actuated by means of the rod G.
  • A shows the external envelope of the distillation apparatus.
  • B1 and B2 are heating coils.
  • C ' is the overflow of the rectification plate H.
  • the tubes C, D and I constitute together the liquid seal through which the liquid, distributed by the arms K, flows downwardly from 86 the plate H to the next plate.
  • the letters E, F and G have the same meaning as in Figure 1.
  • the motion of the rod G takes place through the intermediacy of the arm L and the cam M.
  • the bottoms of the tubes I are perforated to provide 40 for the passage of the rod G.
  • a device for destroying the froth which forms upon boiling and washing liquids comprising a substantially vertical cylindrical tube open 45 at its two ends, the upper end of which lies in the froth formation zone and the lower end in the liquid zone, a piston slidable along the inner surface of said tube, and means for so reciprocating the piston that its uppermost position lles above 50 the tube.
  • a device for destroying the froth which forms upon boiling and washing liquids comprising a substantially vertical cylindrical tube open at its two ends, the upper end of which lies in the at its two ends, the upper end of which lies in the froth formation zone and the lower end in the liquid zone, a piston slidable along the inner surface of said tube, and means for so reciprocating 15 the piston that its uppermost position lies above the tube in a rest position of said piston.
  • a device for distilling froth-forming liquids in a distillation column comprising superposed distillation plates each of which is provided with an overflow shaped as a substantially vertical cylindrical tube, a substantially vertical rod runmng through said tubes along their common axis and to which are aflixed pistons respectively slidable along the inner surfaces of the overflow tubes of the different distillation plates, and means for so reciprocating the rod that the uppermost position of each piston lies above the upper opening of the overflow of. a distillation plate and the lowermost position of the pistoninside said overflow.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
US206187A 1937-08-11 1938-05-05 Device for breaking froth Expired - Lifetime US2206507A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH489465X 1937-08-11

Publications (1)

Publication Number Publication Date
US2206507A true US2206507A (en) 1940-07-02

Family

ID=4516567

Family Applications (1)

Application Number Title Priority Date Filing Date
US206187A Expired - Lifetime US2206507A (en) 1937-08-11 1938-05-05 Device for breaking froth

Country Status (4)

Country Link
US (1) US2206507A (fr)
DE (1) DE696808C (fr)
FR (1) FR841961A (fr)
GB (1) GB489465A (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE738961C (de) * 1940-11-11 1943-09-06 Wilhelm Vogelbusch Verfahren und Vorrichtung zur Feinstbelueftung von Fluessigkeiten, insbesondere von Gaerfluessigkeiten
US2698219A (en) * 1949-04-16 1954-12-28 Saint Gobain Elimination of foam in foaming chemical reactions and apparatus therefor
US2809820A (en) * 1953-12-07 1957-10-15 Phillips Petroleum Co Low pressure drop liquid-vapor contacting tray
US3032478A (en) * 1955-07-15 1962-05-01 Phillips Petroleum Co Improved method of fractionally distilling liquids
US3057786A (en) * 1959-04-27 1962-10-09 Phillips Petroleum Co Foam eliminating feed distributor
US3213594A (en) * 1962-10-16 1965-10-26 Bass Brothers Entpr Inc Mud treating device
US4179487A (en) * 1978-04-04 1979-12-18 Chekhov Oleg S Contact apparatus for carrying out heat-and-mass exchange processes
US6371454B1 (en) * 1997-06-05 2002-04-16 Sulzer Chemtech Ag Downcomer to a plate column
US20100047382A1 (en) * 2007-01-12 2010-02-25 Fumitaka Suto Defoaming Device and Forming Device With The Same
US10183234B2 (en) * 2015-03-18 2019-01-22 Basf Se Crossflow tray for a mass transfer column, mass transfer column and use of the mass transfer column
US20190224590A1 (en) * 2016-05-12 2019-07-25 Nagoya Institute Of Technology Continuous bubble removal method and continuous bubble removal apparatus
US20190366240A1 (en) * 2017-01-25 2019-12-05 Boe Technology Group Co., Ltd. Defoaming device and method

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE738961C (de) * 1940-11-11 1943-09-06 Wilhelm Vogelbusch Verfahren und Vorrichtung zur Feinstbelueftung von Fluessigkeiten, insbesondere von Gaerfluessigkeiten
US2698219A (en) * 1949-04-16 1954-12-28 Saint Gobain Elimination of foam in foaming chemical reactions and apparatus therefor
US2809820A (en) * 1953-12-07 1957-10-15 Phillips Petroleum Co Low pressure drop liquid-vapor contacting tray
US3032478A (en) * 1955-07-15 1962-05-01 Phillips Petroleum Co Improved method of fractionally distilling liquids
US3057786A (en) * 1959-04-27 1962-10-09 Phillips Petroleum Co Foam eliminating feed distributor
US3213594A (en) * 1962-10-16 1965-10-26 Bass Brothers Entpr Inc Mud treating device
US4179487A (en) * 1978-04-04 1979-12-18 Chekhov Oleg S Contact apparatus for carrying out heat-and-mass exchange processes
US6371454B1 (en) * 1997-06-05 2002-04-16 Sulzer Chemtech Ag Downcomer to a plate column
US20100047382A1 (en) * 2007-01-12 2010-02-25 Fumitaka Suto Defoaming Device and Forming Device With The Same
US10183234B2 (en) * 2015-03-18 2019-01-22 Basf Se Crossflow tray for a mass transfer column, mass transfer column and use of the mass transfer column
US20190224590A1 (en) * 2016-05-12 2019-07-25 Nagoya Institute Of Technology Continuous bubble removal method and continuous bubble removal apparatus
US10953351B2 (en) * 2016-05-12 2021-03-23 Nagoya Institute Of Technology Continuous bubble removal method and continuous bubble removal apparatus
US20190366240A1 (en) * 2017-01-25 2019-12-05 Boe Technology Group Co., Ltd. Defoaming device and method
US10744423B2 (en) * 2017-01-25 2020-08-18 Boe Technology Group Co., Ltd. Defoaming device and method

Also Published As

Publication number Publication date
FR841961A (fr) 1939-06-02
GB489465A (en) 1938-07-27
DE696808C (de) 1940-10-02

Similar Documents

Publication Publication Date Title
US2206507A (en) Device for breaking froth
DE68901796T2 (de) Verfahren zur herstellung eines tertiaeren alkylaethers durch reaktive distillation.
US4118285A (en) Separation of liquid mixtures
US2251185A (en) Distillation apparatus
US2317951A (en) Fractional distillation means
US2767068A (en) Method and apparatus for contacting liquids by reciprocal dispersion
US2147786A (en) Apparatus for treating mineral oils
US1780563A (en) Apparatus for separating liquids into constituents possessing a low boiling point and constituents possessing a high boiling point by distillation and rectification
US2344560A (en) Fractionating column and scrubbing tower
US2561669A (en) Distilling and rectifying apparatus
CN208500870U (zh) 一种改进式分馏塔
US1988704A (en) Process of rectification
DE253625C (fr)
US1557112A (en) Distillation apparatus
DE761817C (de) Hydraulische Oberdruckpresse
SU50955A1 (ru) Тарелка дл перегонных аппаратов
DE699767C (de) Rektifikationsanlage
US2374870A (en) Vacuum distillation apparatus
US90445A (en) Improved gas-machine
US1654785A (en) Absorber
DE716952C (de) Rektifizier-, Destillier- und Waschkolonne
US2398807A (en) Fractional distillation apparatus
DE606133C (de) Verfahren und Vorrichtung zur fraktionierten Destillation
DE648632C (de) Verfahren und Vorrichtung zur selbsttaetigen Fuseloelabscheidung
GB670440A (en) Improvements in or relating to condensers for stills