GB1421876A - Process for the continuous detoxification of cyanides - Google Patents
Process for the continuous detoxification of cyanidesInfo
- Publication number
- GB1421876A GB1421876A GB1882974A GB1882974A GB1421876A GB 1421876 A GB1421876 A GB 1421876A GB 1882974 A GB1882974 A GB 1882974A GB 1882974 A GB1882974 A GB 1882974A GB 1421876 A GB1421876 A GB 1421876A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cyanides
- detoxification
- cyanide
- temperature shock
- continuous detoxification
- 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
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D3/00—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
- A62D3/30—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents
- A62D3/35—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents by hydrolysis
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
- A62D2101/20—Organic substances
- A62D2101/26—Organic substances containing nitrogen or phosphorus
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
- A62D2101/40—Inorganic substances
- A62D2101/45—Inorganic substances containing nitrogen or phosphorus
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/025—Thermal hydrolysis
-
- 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
- Business, Economics & Management (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Emergency Management (AREA)
- Removal Of Specific Substances (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
1421876 Detoxification of cyanides JENAPHARM VEB 30 April 1974 [10 May 1973] 18829/74 Heading C1C A process for the detoxification of cyanides or cyanide-containing solutions is described wherein the solution is pre-heated by heat exchange, fed to a tubular reactor with a laminar pressure flow, and the hydrolysis of the cyanide initiated by a temperature shock at 200-250‹ C., 40- 150 atm. The temperature shock may be produced by heat of reaction (e.g. by adding cone. sulphuric acid) or very sudden heating. A device for carrying out the process is also described.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD17084473A DD109365A1 (en) | 1973-05-10 | 1973-05-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1421876A true GB1421876A (en) | 1976-01-21 |
Family
ID=5491238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1882974A Expired GB1421876A (en) | 1973-05-10 | 1974-04-30 | Process for the continuous detoxification of cyanides |
Country Status (18)
| Country | Link |
|---|---|
| JP (2) | JPS503080A (en) |
| AT (1) | AT330685B (en) |
| AU (1) | AU459406B2 (en) |
| BE (1) | BE835634A (en) |
| BR (1) | BR7403801D0 (en) |
| CA (1) | CA1005584A (en) |
| CH (1) | CH596102A5 (en) |
| CS (1) | CS173245B1 (en) |
| DD (1) | DD109365A1 (en) |
| DE (1) | DE2350545B2 (en) |
| ES (1) | ES442687A3 (en) |
| FR (1) | FR2228723B1 (en) |
| GB (1) | GB1421876A (en) |
| IT (1) | IT1015938B (en) |
| NL (1) | NL178678C (en) |
| RO (1) | RO67825A (en) |
| SU (1) | SU791607A1 (en) |
| YU (1) | YU308380A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5222557Y2 (en) * | 1974-07-25 | 1977-05-24 | ||
| AT341238B (en) * | 1975-06-27 | 1978-01-25 | Vmw Ranshofen Berndorf Ag | METHOD OF THERMAL CYANIDE DEGRADATION OF USED CATHODE LINES OF ALUMINUM ELECTROLYSIS CELLS |
| DE2553840C3 (en) * | 1975-11-29 | 1981-01-29 | Bayer Ag, 5090 Leverkusen | Pressure hydrolytic treatment of waste water |
| JPS5321700A (en) * | 1976-08-09 | 1978-02-28 | Yoshio Shinkawa | Locking device |
| WO1999007641A1 (en) * | 1997-08-11 | 1999-02-18 | Ebara Corporation | Hydrothermal electolysis method and apparatus |
| JP6856335B2 (en) | 2016-09-06 | 2021-04-07 | 株式会社ディスコ | Processing equipment |
-
1973
- 1973-05-10 DD DD17084473A patent/DD109365A1/xx unknown
- 1973-10-09 DE DE19732350545 patent/DE2350545B2/en not_active Ceased
- 1973-10-17 CA CA183,650A patent/CA1005584A/en not_active Expired
- 1973-11-20 AU AU62706/73A patent/AU459406B2/en not_active Expired
-
1974
- 1974-01-26 JP JP1136674A patent/JPS503080A/ja active Pending
- 1974-04-26 IT IT5063774A patent/IT1015938B/en active
- 1974-04-30 GB GB1882974A patent/GB1421876A/en not_active Expired
- 1974-05-06 AT AT371074A patent/AT330685B/en not_active IP Right Cessation
- 1974-05-07 RO RO7478695A patent/RO67825A/en unknown
- 1974-05-07 CS CS329474A patent/CS173245B1/cs unknown
- 1974-05-08 SU SU742023362A patent/SU791607A1/en active
- 1974-05-08 BR BR380174A patent/BR7403801D0/en unknown
- 1974-05-08 FR FR7415940A patent/FR2228723B1/fr not_active Expired
- 1974-05-09 NL NL7406254A patent/NL178678C/en not_active IP Right Cessation
- 1974-05-10 CH CH645874A patent/CH596102A5/xx not_active IP Right Cessation
-
1975
- 1975-11-17 BE BE161920A patent/BE835634A/en not_active IP Right Cessation
- 1975-11-17 ES ES442687A patent/ES442687A3/en not_active Expired
-
1980
- 1980-10-02 JP JP13680080A patent/JPS5916513B2/en not_active Expired
- 1980-12-05 YU YU308380A patent/YU308380A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5916513B2 (en) | 1984-04-16 |
| NL178678B (en) | 1985-12-02 |
| AT330685B (en) | 1976-07-12 |
| ATA371074A (en) | 1975-09-15 |
| CH596102A5 (en) | 1978-02-28 |
| DD109365A1 (en) | 1974-11-05 |
| SU791607A1 (en) | 1980-12-30 |
| JPS5763191A (en) | 1982-04-16 |
| CS173245B1 (en) | 1977-02-28 |
| FR2228723B1 (en) | 1976-06-25 |
| BE835634A (en) | 1976-03-16 |
| AU459406B2 (en) | 1975-03-27 |
| RO67825A (en) | 1980-10-30 |
| JPS503080A (en) | 1975-01-13 |
| NL7406254A (en) | 1974-11-12 |
| BR7403801D0 (en) | 1974-12-03 |
| DE2350545A1 (en) | 1974-12-05 |
| AU6270673A (en) | 1975-03-27 |
| NL178678C (en) | 1986-05-01 |
| IT1015938B (en) | 1977-05-20 |
| CA1005584A (en) | 1977-02-15 |
| YU308380A (en) | 1983-02-28 |
| ES442687A3 (en) | 1977-08-16 |
| FR2228723A1 (en) | 1974-12-06 |
| DE2350545B2 (en) | 1977-05-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19930430 |