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'acrylonitrileInfo
- 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
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)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Dispersion Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
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 (es) |
BE (1) | BE862439A (es) |
DE (1) | DE2759261C3 (es) |
ES (1) | ES466227A1 (es) |
GB (1) | GB1565760A (es) |
Families Citing this family (3)
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)
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 |
-
1977
- 1977-06-23 US US05/809,480 patent/US4105582A/en not_active Expired - Lifetime
- 1977-12-28 GB GB53986/77A patent/GB1565760A/en not_active Expired
- 1977-12-29 BE BE1008612A patent/BE862439A/xx not_active IP Right Cessation
- 1977-12-31 DE DE2759261A patent/DE2759261C3/de not_active Expired
-
1978
- 1978-01-20 ES ES466227A patent/ES466227A1/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2759261A1 (de) | 1979-01-04 |
US4105582A (en) | 1978-08-08 |
DE2759261B2 (de) | 1979-11-08 |
GB1565760A (en) | 1980-04-23 |
ES466227A1 (es) | 1978-10-16 |
DE2759261C3 (de) | 1980-07-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE | Patent lapsed |
Owner name: NALCO-HAKUTO CHEMICAL CY LTD Effective date: 19911231 |