BE862439A - Composition et procede de lutte contre la corrosion et la formation de mousse dans les unites de production de l'acrylonitrile - Google Patents

Composition et procede de lutte contre la corrosion et la formation de mousse dans les unites de production de l'acrylonitrile

Info

Publication number
BE862439A
BE862439A BE1008612A BE1008612A BE862439A BE 862439 A BE862439 A BE 862439A BE 1008612 A BE1008612 A BE 1008612A BE 1008612 A BE1008612 A BE 1008612A BE 862439 A BE862439 A BE 862439A
Authority
BE
Belgium
Prior art keywords
composition
foam formation
production units
acrylonitrile production
combating corrosion
Prior art date
Application number
BE1008612A
Other languages
English (en)
French (fr)
Inventor
Y Oguro
Original Assignee
Nalco Hakuto Chemical Cy Ltd
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 Nalco Hakuto Chemical Cy Ltd filed Critical Nalco Hakuto Chemical Cy Ltd
Publication of BE862439A publication Critical patent/BE862439A/xx

Links

Classifications

    • 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
    • C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
    • C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
    • C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
    • 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
    • B01D19/04—Foam dispersion or prevention by addition of chemical substances
    • B01D19/0404—Foam dispersion or prevention by addition of chemical substances characterised by the nature of the chemical substance
    • 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
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/0006—Controlling or regulating processes
    • B01J19/002—Avoiding undesirable reactions or side-effects, e.g. avoiding explosions, or improving the yield by suppressing side-reactions
    • 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
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00245—Avoiding undesirable reactions or side-effects
    • B01J2219/0025—Foam formation
    • 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
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2031/00—Use of polyvinylesters or derivatives thereof as moulding material

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
BE1008612A 1977-06-23 1977-12-29 Composition et procede de lutte contre la corrosion et la formation de mousse dans les unites de production de l'acrylonitrile BE862439A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/809,480 US4105582A (en) 1977-06-23 1977-06-23 Composition for the control of corrosion and foaming in the acrylonitrile plants

Publications (1)

Publication Number Publication Date
BE862439A true BE862439A (fr) 1978-06-29

Family

ID=25201445

Family Applications (1)

Application Number Title Priority Date Filing Date
BE1008612A BE862439A (fr) 1977-06-23 1977-12-29 Composition et procede de lutte contre la corrosion et la formation de mousse dans les unites de production de l'acrylonitrile

Country Status (5)

Country Link
US (1) US4105582A (de)
BE (1) BE862439A (de)
DE (1) DE2759261C3 (de)
ES (1) ES466227A1 (de)
GB (1) GB1565760A (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2442830A1 (fr) * 1978-11-30 1980-06-27 Ugine Kuhlmann Procede de regulation des mousses dans les installations de fabrication de l'acrylonitrile et des esters acryliques
US5151220A (en) * 1990-08-07 1992-09-29 Nalco Chemical Company Chemical abatement of carbonate cracking
CN109402640B (zh) * 2017-08-16 2021-03-09 中国石油天然气股份有限公司 一种缓蚀剂及其制备方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE703222C (de) 1938-11-10 1941-03-04 Sangerhausen Akt Ges Maschf Zellenloses Saugtrommel-Drehfilter
US3109856A (en) * 1959-10-30 1963-11-05 American Cyanamid Co Stabilization of acrylonitrile
US3245536A (en) 1963-03-25 1966-04-12 Phillips Petroleum Co Vacuum filtration
US3330416A (en) 1965-03-23 1967-07-11 Hornbostel Dorothy Perforated drum type liquid filter
US3657136A (en) * 1969-12-29 1972-04-18 Betz Laboratories Method of controlling foam in acrylonitrile production
US3901809A (en) 1974-06-10 1975-08-26 Technical Fabricators Rotary filter apparatus having continuous web supporting a sheet filter media

Also Published As

Publication number Publication date
DE2759261A1 (de) 1979-01-04
DE2759261C3 (de) 1980-07-31
ES466227A1 (es) 1978-10-16
DE2759261B2 (de) 1979-11-08
US4105582A (en) 1978-08-08
GB1565760A (en) 1980-04-23

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: NALCO-HAKUTO CHEMICAL CY LTD

Effective date: 19911231