GB1145390A - Process for manufacture of hydrochloric acid - Google Patents
Process for manufacture of hydrochloric acidInfo
- Publication number
- GB1145390A GB1145390A GB5000467A GB5000467A GB1145390A GB 1145390 A GB1145390 A GB 1145390A GB 5000467 A GB5000467 A GB 5000467A GB 5000467 A GB5000467 A GB 5000467A GB 1145390 A GB1145390 A GB 1145390A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reaction
- hcl
- vessel
- salt
- product
- 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
- C01B7/00—Halogens; Halogen acids
- C01B7/01—Chlorine; Hydrogen chloride
- C01B7/03—Preparation from chlorides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
1,145,390. Hydrochloric acid; alkali metal sulphates. WOODALL-DUCKHAM Ltd. 3 Nov., 1967 [8 Nov., 1966]. No. 50004/67. Heading C1A. In the process of the parent Specification, wherein HCl is produced by continually feeding NaCl or KCl and H 2 SO 4 into a boiling aqueous reaction mixture in a vessel, and permitting escape of HCl gas, aqueous reaction mass is continually withdrawn from said vessel and heat-treated to complete the reaction of 1 or 2 moles of salt with 1 mole of H 2 SO 4 . In Fig. 1, HCl gas is formed by reaction of salt and H 2 SO 4 in vessel 1, as described above. In the production of a bisulphate by-product, reaction mass from 1 passes through pump 8 to the head of HCl stripping tower 9, which it descends, at its boiling-point, in countercurrent to air and/or steam from inlet 10, so that the reaction between 1 mole of salt and 1 mole of H 2 SO 4 may go to completion, and so that HCl gas is stripped from the mixture to give a substantially chloride-free bisulphate product. Two alternative forms of HCl stripping device are described. In the production of a sulphate by-product, the reaction mass passes (instead of to a stripping device such as 9), to a spray roaster, in which it is sprayed in countercurrent to ascending hot gases at such temperature that the reaction between 2 moles of salt and 1 of sulphuric acid may take place to give a substantially chloridefree sulphate, which is removed as product, whilst the exhaust gases are scrubbed with water to remove HCI as an aqueous solution which may be recycled to vessel 1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5000467A GB1145390A (en) | 1966-11-08 | 1966-11-08 | Process for manufacture of hydrochloric acid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5000467A GB1145390A (en) | 1966-11-08 | 1966-11-08 | Process for manufacture of hydrochloric acid |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1145390A true GB1145390A (en) | 1969-03-12 |
Family
ID=10454293
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5000467A Expired GB1145390A (en) | 1966-11-08 | 1966-11-08 | Process for manufacture of hydrochloric acid |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1145390A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3998935A (en) * | 1975-01-30 | 1976-12-21 | Pennzoil Company | Manufacture of potassium sulfate |
US4021532A (en) * | 1972-11-28 | 1977-05-03 | Le Nickel | Process for the production of hydrated nickel sulphate |
US4045543A (en) * | 1975-11-12 | 1977-08-30 | Pennzoil Company | Production of potassium sulfate and hydrogen chloride |
US4371512A (en) * | 1981-02-03 | 1983-02-01 | Pennzoil Company | Production of alkali metal sulfates |
CN108525337A (en) * | 2018-05-29 | 2018-09-14 | 杭州东日节能技术有限公司 | A kind of dilute hydrochloric acid is concentrated in vacuo tower and its application method |
-
1966
- 1966-11-08 GB GB5000467A patent/GB1145390A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4021532A (en) * | 1972-11-28 | 1977-05-03 | Le Nickel | Process for the production of hydrated nickel sulphate |
US3998935A (en) * | 1975-01-30 | 1976-12-21 | Pennzoil Company | Manufacture of potassium sulfate |
US4045543A (en) * | 1975-11-12 | 1977-08-30 | Pennzoil Company | Production of potassium sulfate and hydrogen chloride |
US4371512A (en) * | 1981-02-03 | 1983-02-01 | Pennzoil Company | Production of alkali metal sulfates |
CN108525337A (en) * | 2018-05-29 | 2018-09-14 | 杭州东日节能技术有限公司 | A kind of dilute hydrochloric acid is concentrated in vacuo tower and its application method |
CN108525337B (en) * | 2018-05-29 | 2023-07-18 | 杭州东日节能技术有限公司 | Dilute hydrochloric acid vacuum concentration tower and its use method |
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