GB956608A - Process and regulating installation for concentrating hydrochloric acid from gases containing hydrogen chloride - Google Patents
Process and regulating installation for concentrating hydrochloric acid from gases containing hydrogen chlorideInfo
- Publication number
- GB956608A GB956608A GB3368961A GB3368961A GB956608A GB 956608 A GB956608 A GB 956608A GB 3368961 A GB3368961 A GB 3368961A GB 3368961 A GB3368961 A GB 3368961A GB 956608 A GB956608 A GB 956608A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- hydrochloric acid
- tower
- hcl
- hydrogen chloride
- 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
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 title abstract 21
- 229910000041 hydrogen chloride Inorganic materials 0.000 title abstract 10
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 title abstract 10
- 239000007789 gas Substances 0.000 title 1
- 238000009434 installation Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 230000001105 regulatory effect Effects 0.000 title 1
- 238000010521 absorption reaction Methods 0.000 abstract 6
- 239000002253 acid Substances 0.000 abstract 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 3
- 238000001816 cooling Methods 0.000 abstract 2
- 239000008246 gaseous mixture Substances 0.000 abstract 2
- 238000010924 continuous production Methods 0.000 abstract 1
- 239000000110 cooling liquid Substances 0.000 abstract 1
- 238000003795 desorption Methods 0.000 abstract 1
- 239000011552 falling film Substances 0.000 abstract 1
- 239000002912 waste gas Substances 0.000 abstract 1
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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
A continuous process for preparing concentrated hydrochloric acid comprising contacting a gaseous mixture containing hydrogen chloride in countercurrent with water in an adiabatic absorption tower, with drawing hydrochloric acid from the absorption tower and treating a portion thereof in a desorption apparatus so as to generate dilute hydrochloric acid and a gaseous effluent containing a major proportion of hydrogen chloride, and contacting said gaseous effluent with the remainder of the hydrochloric acid withdrawn from the tower in an absorption apparatus with simultaneous cooling so as to form concentrated hydrochloric acid. In Fig. 1 the waste gases enter the packed tower 2 through inlet 1. Absorption water is added through conduit 3, and HCl of 32% strength and at 78 DEG C. is discharged to sump 4. Part of this acid is conveyed by pump 5 into an evaporator 6 where it is decomposed into a vapour containing 85% HCl and an acid of 30% HCl. The evaporator consists of a reservoir 7 for the acid, a falling film heat exchanger 8 and a packed hollow cylinder 9. The vapour containing 85% HCl flows through a conduit 12 into exchanger 14 where the vapours are absorbed with simultaneous cooling by mea of residual HCl of 32% to form acid of 38% which collects in reservoir 16. The excess HCl vapours are returned via 15 into the tower at 17 about 500 mm. above the lower end of the <PICT:0956608/C1/1> column 2, which distance corresponds to a theoretical tray. The rate of supply of water to the adiabatic absorption tower 2 may be controlled in correspondence with variation in the rate of supply of hydrogen chloride in the gaseous mixture and concentration of acid discharged from the tower 2, and the rate of passage of cooling liquid through the absorption apparatus may be varied in inverse correspondence with variation in concentration of the acid discharged therefrom.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF32155A DE1124022B (en) | 1960-09-20 | 1960-09-20 | Process and control device for concentrating hydrochloric acid from gases containing hydrogen chloride |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB956608A true GB956608A (en) | 1964-04-29 |
Family
ID=7094516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3368961A Expired GB956608A (en) | 1960-09-20 | 1961-09-20 | Process and regulating installation for concentrating hydrochloric acid from gases containing hydrogen chloride |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE608360A (en) |
| CH (1) | CH420079A (en) |
| DE (1) | DE1124022B (en) |
| GB (1) | GB956608A (en) |
| NL (1) | NL269424A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3314753A (en) * | 1963-10-25 | 1967-04-18 | Bayer Ag | Process for the decomposition of phosgene |
| US3495945A (en) * | 1966-07-19 | 1970-02-17 | Dravo Corp | Apparatus for the regeneration of hydrochloric acid from spent pickle liquor and like solutions |
| CN108314603A (en) * | 2018-03-29 | 2018-07-24 | 内蒙古鄂尔多斯电力冶金集团股份有限公司 | A kind of hydrochloric acid full stripping devices and methods therefor |
| CN108483399A (en) * | 2018-05-29 | 2018-09-04 | 杭州东日节能技术有限公司 | A kind of VCM purification hydrochloric acid full stripping device and technique |
| CN115849306A (en) * | 2022-12-06 | 2023-03-28 | 建滔（衡阳）实业有限公司 | Hydrochloric acid desorption equipment capable of efficiently and continuously recovering |
| CN116101979A (en) * | 2023-02-24 | 2023-05-12 | 中国矿业大学 | A waste acid recovery method for treating chlorination distillation raffinate |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108325541B (en) * | 2018-03-26 | 2023-12-05 | 内蒙古鄂尔多斯电力冶金集团股份有限公司 | System and method for activating catalyst for calcium carbide PVC resin production |
| CN109516440A (en) * | 2019-01-09 | 2019-03-26 | 董军辉 | A kind of hydrogen chloride generator based on pressure control |
-
0
- NL NL269424D patent/NL269424A/xx unknown
-
1960
- 1960-09-20 DE DEF32155A patent/DE1124022B/en active Pending
-
1961
- 1961-09-18 CH CH1080461A patent/CH420079A/en unknown
- 1961-09-20 GB GB3368961A patent/GB956608A/en not_active Expired
- 1961-09-20 BE BE608360A patent/BE608360A/en unknown
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3314753A (en) * | 1963-10-25 | 1967-04-18 | Bayer Ag | Process for the decomposition of phosgene |
| US3495945A (en) * | 1966-07-19 | 1970-02-17 | Dravo Corp | Apparatus for the regeneration of hydrochloric acid from spent pickle liquor and like solutions |
| CN108314603A (en) * | 2018-03-29 | 2018-07-24 | 内蒙古鄂尔多斯电力冶金集团股份有限公司 | A kind of hydrochloric acid full stripping devices and methods therefor |
| CN108483399A (en) * | 2018-05-29 | 2018-09-04 | 杭州东日节能技术有限公司 | A kind of VCM purification hydrochloric acid full stripping device and technique |
| CN115849306A (en) * | 2022-12-06 | 2023-03-28 | 建滔（衡阳）实业有限公司 | Hydrochloric acid desorption equipment capable of efficiently and continuously recovering |
| CN115849306B (en) * | 2022-12-06 | 2024-05-10 | 建滔（衡阳）实业有限公司 | Continuously recovered hydrochloric acid desorption equipment |
| CN116101979A (en) * | 2023-02-24 | 2023-05-12 | 中国矿业大学 | A waste acid recovery method for treating chlorination distillation raffinate |
Also Published As
| Publication number | Publication date |
|---|---|
| NL269424A (en) | |
| CH420079A (en) | 1966-09-15 |
| DE1124022B (en) | 1962-02-22 |
| BE608360A (en) | 1962-03-20 |
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