ES316250A1 - Production of chlorine dioxide - Google Patents
Production of chlorine dioxideInfo
- Publication number
- ES316250A1 ES316250A1 ES0316250A ES316250A ES316250A1 ES 316250 A1 ES316250 A1 ES 316250A1 ES 0316250 A ES0316250 A ES 0316250A ES 316250 A ES316250 A ES 316250A ES 316250 A1 ES316250 A1 ES 316250A1
- Authority
- ES
- Spain
- Prior art keywords
- chloride
- chlorate
- water
- h2so4
- alkali metal
- 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
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B11/00—Oxides or oxyacids of halogens; Salts thereof
- C01B11/02—Oxides of chlorine
- C01B11/022—Chlorine dioxide (ClO2)
- C01B11/023—Preparation from chlorites or chlorates
- C01B11/025—Preparation from chlorites or chlorates from chlorates without any other reaction reducing agent than chloride ions
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B7/00—Halogens; Halogen acids
- C01B7/01—Chlorine; Hydrogen chloride
- C01B7/03—Preparation from chlorides
Abstract
ClO2 and Cl2 are produced by continuously adding an alkali metal chlorate and chloride and a strong acid to a reaction vessel, maintaining a partial pressure of water such as to ensure crystallization of the alkali metal salt of the acid within the vessel, and continuously withdrawing the product gases and solid. The acid may be H2SO4 or H5PO4 and the alkali metal may be Na, K or Li. The chlorate and chloride may be added dry or as solution, separately or together, in a ratio of 1 : 1 to 1 : 6 respectively. H2SO4 used may be above 100%. The reaction mixture produced may be 0.005-3 M in chlorate, 0.001-2 M in chloride, and less than 6 M in H2SO4, and may be at a temperature of - 25 DEG to + 100 DEG C. The partial pressure of water may be maintained by means of a water jet eductor (which produces a partial vacuum and also dissolves the ClO2 and Cl2), or by using a stream of inert gas, e.g. air or N2. Liquid effluent withdrawn from the vessel and wash water may be recycled. The crystals produced may be, for example, NaHSO4, NaHSO4.H2O, <FORM:1056790/C1/1>
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3309264A GB1056790A (en) | 1964-08-13 | 1964-08-13 | Production of chlorine dioxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES316250A1 true ES316250A1 (en) | 1966-04-16 |
Family
ID=10348464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES0316250A Expired ES316250A1 (en) | 1964-08-13 | 1965-08-07 | Production of chlorine dioxide |
Country Status (11)
| Country | Link |
|---|---|
| AT (1) | AT254135B (en) |
| BE (1) | BE668062A (en) |
| CA (1) | CA916891A (en) |
| CH (1) | CH492639A (en) |
| DE (1) | DE1567479C3 (en) |
| ES (1) | ES316250A1 (en) |
| FI (1) | FI45035C (en) |
| GB (1) | GB1056790A (en) |
| NL (1) | NL156369B (en) |
| NO (1) | NO116846B (en) |
| SE (1) | SE312789B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3760065A (en) * | 1970-05-29 | 1973-09-18 | Erco Ind Ltd | Production of chlorine dioxide |
| US3816077A (en) * | 1971-05-21 | 1974-06-11 | Hooker Chemical Corp | Chlorine dioxide generating system |
| US3789108A (en) * | 1973-02-08 | 1974-01-29 | Erco Ind Ltd | Production of chlorine dioxide |
| US4486399A (en) * | 1983-07-01 | 1984-12-04 | Multifibre Process Limited | Method to reduce the potential salt cake content of chlorine dioxide generator spent acids |
| WO2018157031A1 (en) | 2017-02-27 | 2018-08-30 | Ecolab USA, Inc. | Method for onsite production of chlorine dioxide |
| EP3601157B9 (en) | 2017-03-24 | 2021-08-25 | Ecolab USA, Inc. | Low risk chlorine dioxide onsite generation system |
| WO2019036065A1 (en) | 2017-08-17 | 2019-02-21 | Ecolab USA, Inc. | Low risk chlorine dioxide onsite generation system |
-
0
- CA CA916891A patent/CA916891A/en not_active Expired
-
1964
- 1964-08-13 GB GB3309264A patent/GB1056790A/en not_active Expired
-
1965
- 1965-07-30 CH CH1074765A patent/CH492639A/en not_active IP Right Cessation
- 1965-07-30 NO NO15915265A patent/NO116846B/no unknown
- 1965-08-03 DE DE19651567479 patent/DE1567479C3/en not_active Expired
- 1965-08-06 FI FI189965A patent/FI45035C/en active
- 1965-08-07 ES ES0316250A patent/ES316250A1/en not_active Expired
- 1965-08-09 BE BE668062D patent/BE668062A/xx not_active IP Right Cessation
- 1965-08-12 SE SE1055665A patent/SE312789B/xx unknown
- 1965-08-13 NL NL6510600A patent/NL156369B/en not_active IP Right Cessation
- 1965-08-13 AT AT747865A patent/AT254135B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| BE668062A (en) | 1965-12-01 |
| NL6510600A (en) | 1966-02-14 |
| CH492639A (en) | 1970-06-30 |
| NL156369B (en) | 1978-04-17 |
| GB1056790A (en) | 1967-01-25 |
| FI45035B (en) | 1971-11-30 |
| SE312789B (en) | 1969-07-28 |
| DE1567479B2 (en) | 1974-08-01 |
| CA916891A (en) | 1972-12-19 |
| NO116846B (en) | 1969-06-02 |
| AT254135B (en) | 1967-05-10 |
| FI45035C (en) | 1972-03-10 |
| DE1567479C3 (en) | 1975-03-27 |
| DE1567479A1 (en) | 1970-08-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FD1A | Patent lapsed |
Effective date: 19860210 |