GB624848A - Improvements in or relating to methods for treating corrosive gases to render them innocuous - Google Patents
Improvements in or relating to methods for treating corrosive gases to render them innocuousInfo
- Publication number
- GB624848A GB624848A GB2548345A GB2548345A GB624848A GB 624848 A GB624848 A GB 624848A GB 2548345 A GB2548345 A GB 2548345A GB 2548345 A GB2548345 A GB 2548345A GB 624848 A GB624848 A GB 624848A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chloride
- fluoride
- oxide
- mixture
- gases
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/68—Halogens or halogen compounds
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B9/00—General methods of preparing halides
- C01B9/08—Fluorides
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Health & Medical Sciences (AREA)
- Inorganic Chemistry (AREA)
- Biomedical Technology (AREA)
- Treating Waste Gases (AREA)
Abstract
Fluorine is removed from gases such as derive from the fluorination of hydrocarbons or the production of cobaltic fluoride by passing them over a mixture of a non-volatile metal fluoride, e.g. of the alkali or alkaline earth metals, and a metallic oxide or non-volatile metal chloride, e.g. the oxide or chloride of sodium, potassium, calcium, barium, magnesium, cadmium or zinc, the oxide or chloride forming only a single and non-volatile fluoride. Preferably, the mixture or a component thereof is fusible below 1000 DEG C., and the mixture is heated till fusion or partial fusion occurs, solidified and granulated. Generally, the mixture contains 25-50 per cent fluoride. When it contains a chloride, the chlorine evolved may be removed from the effluent gas by passing it over hydrated lime or by washing with aqueous alkali. The gases may be passed through towers containing increasing amounts of the oxide or chloride constituent, the last tower containing oxide or chloride free from fluoride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2548345A GB624848A (en) | 1945-10-01 | 1945-10-01 | Improvements in or relating to methods for treating corrosive gases to render them innocuous |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2548345A GB624848A (en) | 1945-10-01 | 1945-10-01 | Improvements in or relating to methods for treating corrosive gases to render them innocuous |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB624848A true GB624848A (en) | 1949-06-17 |
Family
ID=10228433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2548345A Expired GB624848A (en) | 1945-10-01 | 1945-10-01 | Improvements in or relating to methods for treating corrosive gases to render them innocuous |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB624848A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3605509A1 (en) * | 1986-02-20 | 1987-08-27 | Gruenzweig Hartmann Glasfaser | METHOD FOR MELTING SILICATIC RAW MATERIALS, ESPECIALLY FOR THE PRODUCTION OF MINERAL WOOL, AND DEVICE FOR PREHEATING THE MIXTURE OF RAW MATERIALS AND CLEANING DEVICE FOR THE TUBE EXHAUST GASES THROUGH THE PROCEDURE |
| GB2200621A (en) * | 1987-02-06 | 1988-08-10 | Coal Ind | Treatment of gases |
-
1945
- 1945-10-01 GB GB2548345A patent/GB624848A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3605509A1 (en) * | 1986-02-20 | 1987-08-27 | Gruenzweig Hartmann Glasfaser | METHOD FOR MELTING SILICATIC RAW MATERIALS, ESPECIALLY FOR THE PRODUCTION OF MINERAL WOOL, AND DEVICE FOR PREHEATING THE MIXTURE OF RAW MATERIALS AND CLEANING DEVICE FOR THE TUBE EXHAUST GASES THROUGH THE PROCEDURE |
| GB2200621A (en) * | 1987-02-06 | 1988-08-10 | Coal Ind | Treatment of gases |
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