FR2215802A5 - Fluidised bed polymn using cooling liq. injection - with non return valve on nozzles to prevent back flow of powder clogging feed pipes - Google Patents

Fluidised bed polymn using cooling liq. injection - with non return valve on nozzles to prevent back flow of powder clogging feed pipes

Info

Publication number
FR2215802A5
FR2215802A5 FR7246808A FR7246808A FR2215802A5 FR 2215802 A5 FR2215802 A5 FR 2215802A5 FR 7246808 A FR7246808 A FR 7246808A FR 7246808 A FR7246808 A FR 7246808A FR 2215802 A5 FR2215802 A5 FR 2215802A5
Authority
FR
France
Prior art keywords
injection
nozzles
polymn
fluidised bed
return valve
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
FR7246808A
Other languages
French (fr)
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.)
Solvay SA
Original Assignee
Solvay 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 Solvay SA filed Critical Solvay SA
Priority to FR7246808A priority Critical patent/FR2215802A5/en
Priority to IT2997673A priority patent/IT995767B/en
Priority to ES419940A priority patent/ES419940A1/en
Priority to DE19732357848 priority patent/DE2357848A1/en
Priority to BE139266A priority patent/BE809105A/en
Application granted granted Critical
Publication of FR2215802A5 publication Critical patent/FR2215802A5/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
    • B01J8/1818—Feeding of the fluidising gas
    • B01J8/1827—Feeding of the fluidising gas the fluidising gas being a reactant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/32—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages in which a valve member forms part of the outlet opening
    • B05B1/323—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages in which a valve member forms part of the outlet opening the valve member being actuated by the pressure of the fluid to be sprayed

Abstract

A method of injecting a liq into the interior of a fluidised bed consists of using nozzles fitted with non-return flap valves over their outlets. The pref application is for polysn of ethylenically unsatd monomers in a fluised bed, where injection and evapn. of a liq within the bed is used to regulate the temp.
FR7246808A 1972-12-28 1972-12-28 Fluidised bed polymn using cooling liq. injection - with non return valve on nozzles to prevent back flow of powder clogging feed pipes Expired FR2215802A5 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FR7246808A FR2215802A5 (en) 1972-12-28 1972-12-28 Fluidised bed polymn using cooling liq. injection - with non return valve on nozzles to prevent back flow of powder clogging feed pipes
IT2997673A IT995767B (en) 1972-12-28 1973-10-10 PROCESS FOR THE INJECTION OF A LIQUID INTO A FLUIDIZED SOLID
ES419940A ES419940A1 (en) 1972-12-28 1973-10-25 Procedure for the injection of a liquid in the sine of a fluidified bed. (Machine-translation by Google Translate, not legally binding)
DE19732357848 DE2357848A1 (en) 1972-12-28 1973-11-20 METHOD AND DEVICE FOR INJECTING A LIQUID INTO THE INTERIOR OF A FLUID BED
BE139266A BE809105A (en) 1972-12-28 1973-12-27 METHOD FOR INJECTING A LIQUID WITHIN A FLUIDIZED SOLID

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7246808A FR2215802A5 (en) 1972-12-28 1972-12-28 Fluidised bed polymn using cooling liq. injection - with non return valve on nozzles to prevent back flow of powder clogging feed pipes

Publications (1)

Publication Number Publication Date
FR2215802A5 true FR2215802A5 (en) 1974-08-23

Family

ID=9109485

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7246808A Expired FR2215802A5 (en) 1972-12-28 1972-12-28 Fluidised bed polymn using cooling liq. injection - with non return valve on nozzles to prevent back flow of powder clogging feed pipes

Country Status (5)

Country Link
BE (1) BE809105A (en)
DE (1) DE2357848A1 (en)
ES (1) ES419940A1 (en)
FR (1) FR2215802A5 (en)
IT (1) IT995767B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5541270A (en) * 1993-05-20 1996-07-30 Bp Chemicals Limited Polymerization process
EP0803519A1 (en) 1996-04-26 1997-10-29 Bp Chemicals S.N.C. Polymerisation process
EP0829491A2 (en) * 1996-09-12 1998-03-18 Mitsui Petrochemical Industries, Ltd. Method of terminating gas phase polymerization of olefin, method of initiating the polymerization and apparatus therefor
US6001938A (en) * 1993-05-20 1999-12-14 Bp Chemicals Limited Polymerization process
FR2806327A1 (en) 2000-03-17 2001-09-21 Bp Chemicals Snc VARIABLE LIQUID LEVEL NOZZLE
US6306981B1 (en) 1999-04-02 2001-10-23 Union Carbide Chemicals & Plastics Technology Corporation Gas phase polymerization process

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4106553A1 (en) * 1991-03-01 1992-09-03 Draiswerke Gmbh Cooling of hot solids by direct contact solvent flashing - includes recycling of condensed solvent
US6075101A (en) * 1997-02-19 2000-06-13 Union Carbide Chemicals & Plastics Technology Corporation Control of solution catalyst droplet size with a perpendicular spray nozzle
DE19801859A1 (en) 1998-01-20 1999-07-22 Bayer Ag Prevention of instability in gas phase polymerization of rubber
DE102009022530A1 (en) * 2009-05-25 2010-12-02 Ertle, Thomas Method for uniform introduction of flow medium i.e. air, from space area through individual nozzles into fluidized bed i.e. sand, involves controlling flow through individual nozzles by control devices by movable unit i.e. ball
CN105817352B (en) * 2016-04-25 2019-01-18 上海纳米技术及应用国家工程研究中心有限公司 A kind of ALD structuring nozzle

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5541270A (en) * 1993-05-20 1996-07-30 Bp Chemicals Limited Polymerization process
US5804677A (en) * 1993-05-20 1998-09-08 Bp Chemicals Limited Polymerization process
US6001938A (en) * 1993-05-20 1999-12-14 Bp Chemicals Limited Polymerization process
EP0803519A1 (en) 1996-04-26 1997-10-29 Bp Chemicals S.N.C. Polymerisation process
EP0829491A2 (en) * 1996-09-12 1998-03-18 Mitsui Petrochemical Industries, Ltd. Method of terminating gas phase polymerization of olefin, method of initiating the polymerization and apparatus therefor
EP0829491A3 (en) * 1996-09-12 1998-07-01 Mitsui Chemicals, Inc. Method of terminating gas phase polymerization of olefin, method of initiating the polymerization and apparatus therefor
US6013741A (en) * 1996-09-12 2000-01-11 Mitsui Chemicals, Inc. Method of terminating gas phase polymerization of olefin, method of initiating the polymerization and apparatus therefor
US6306981B1 (en) 1999-04-02 2001-10-23 Union Carbide Chemicals & Plastics Technology Corporation Gas phase polymerization process
FR2806327A1 (en) 2000-03-17 2001-09-21 Bp Chemicals Snc VARIABLE LIQUID LEVEL NOZZLE

Also Published As

Publication number Publication date
BE809105A (en) 1974-06-27
IT995767B (en) 1975-11-20
ES419940A1 (en) 1976-08-01
DE2357848A1 (en) 1974-07-04

Similar Documents

Publication Publication Date Title
GB1135330A (en) Improvements in or relating to an apparatus for augmenting blood circulation
FR2215802A5 (en) Fluidised bed polymn using cooling liq. injection - with non return valve on nozzles to prevent back flow of powder clogging feed pipes
GB1317136A (en) Sealing mechanism for a pressurised fluid system
CA976212A (en) Nozzle shut-off and flow control valve
GB1349898A (en) Expansible tube valves
GB1182642A (en) Fluid Control Valve
GB1324007A (en) Inflation valves
GB1441295A (en) Control valve for pulsed rocket propulsion units
GB1297567A (en)
GB1090034A (en) Method and apparatus for deflashing molded resilient pieces
GB1437232A (en) Lever valve control mechanism
GB1397048A (en) Shower apparatus
GB1317229A (en) Axial flow valve
GB1011376A (en) Improvements in fluid pressure relief valves
GB1262428A (en) Fluid control valve
ZA714667B (en) A valve for controlling the flow of a medium through a pipe,having a flap rotatable to and fro
GB1112101A (en) Fluid flow control valves
GB1061107A (en) Improvements in and relating to fluid control valves
FR2241948A7 (en) Water valve for mangers - has operating head, spring loaded plunger and oblique water delivery channel
GB1019159A (en) Valve for hydraulic pit props
GB1419617A (en) Sprayer
FR2146931A1 (en) Underwater well product separator - with gas and liquid delivery valves control system
GB1322050A (en) Polyurethane foams and plastics
GB1115426A (en) Improved fluid flow control valve
GB1164358A (en) A Float Controlled Valve with a Silencing Device.

Legal Events

Date Code Title Description
ST Notification of lapse