GB1416465A - Method for the nonpolluting decomposition of solid and or liquid cyanide wastes - Google Patents
Method for the nonpolluting decomposition of solid and or liquid cyanide wastesInfo
- Publication number
- GB1416465A GB1416465A GB1056273A GB1056273A GB1416465A GB 1416465 A GB1416465 A GB 1416465A GB 1056273 A GB1056273 A GB 1056273A GB 1056273 A GB1056273 A GB 1056273A GB 1416465 A GB1416465 A GB 1416465A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cyanide
- decomposition
- solid
- nonpolluting
- wastes
- 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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D7/00—Carbonates of sodium, potassium or alkali metals in general
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
- C02F2101/18—Cyanides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Removal Of Specific Substances (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
1416465 Decomposition of cyanide wastes; sodium carbonate GES FUER KERNFORSCHUNG mbH 5 March 1973 [11 March 1972] 10562/73 Heading C1A Method for the non-polluting decomposition of solid and/or liquid cyanide wastes comprises heating the cyanide to its melting point and blowing low pressure water vapour into the melt. In an example sodium cyanide is decomposable according to the reaction: 2NaCN + 4H 2 O # Na 2 CO 3 + CO + H 2 + 2NH 3 by reaction with steam at 850‹ C. for 2 hours, 99% of the cyanide being converted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2211866A DE2211866A1 (en) | 1971-08-18 | 1972-03-11 | Destruction of solid and/or liquid cyanide wastes - - by heat treatment under pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1416465A true GB1416465A (en) | 1975-12-03 |
Family
ID=5838638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1056273A Expired GB1416465A (en) | 1972-03-11 | 1973-03-05 | Method for the nonpolluting decomposition of solid and or liquid cyanide wastes |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS491473A (en) |
| AU (1) | AU5311873A (en) |
| CH (1) | CH578356A5 (en) |
| GB (1) | GB1416465A (en) |
| IT (1) | IT980505B (en) |
| NL (1) | NL7303423A (en) |
| ZA (1) | ZA731559B (en) |
-
1973
- 1973-03-05 GB GB1056273A patent/GB1416465A/en not_active Expired
- 1973-03-06 CH CH329373A patent/CH578356A5/xx not_active IP Right Cessation
- 1973-03-06 ZA ZA731559A patent/ZA731559B/en unknown
- 1973-03-07 IT IT67620/73A patent/IT980505B/en active
- 1973-03-08 AU AU53118/73A patent/AU5311873A/en not_active Expired
- 1973-03-12 NL NL7303423A patent/NL7303423A/xx unknown
- 1973-03-12 JP JP48028896A patent/JPS491473A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPS491473A (en) | 1974-01-08 |
| AU5311873A (en) | 1974-09-12 |
| IT980505B (en) | 1974-10-10 |
| ZA731559B (en) | 1973-12-19 |
| NL7303423A (en) | 1973-09-13 |
| CH578356A5 (en) | 1976-08-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |