DE1088934B - Process for obtaining chlorine from hydrogen chloride - Google Patents
Process for obtaining chlorine from hydrogen chlorideInfo
- Publication number
- DE1088934B DE1088934B DET17558A DET0017558A DE1088934B DE 1088934 B DE1088934 B DE 1088934B DE T17558 A DET17558 A DE T17558A DE T0017558 A DET0017558 A DE T0017558A DE 1088934 B DE1088934 B DE 1088934B
- Authority
- DE
- Germany
- Prior art keywords
- hydrogen chloride
- chlorine
- obtaining chlorine
- hydrochloric acid
- 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.)
- Pending
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
- C01B7/04—Preparation of chlorine from hydrogen chloride
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Gas Separation By Absorption (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Gewinnung von Chlor aus Chlorwasserstoff Nach Patent 1068 676 wird durch Schmelzen von Cuprichlorid bei 300 bis 400° C Chlor ausgetrieben und die entstandene Cuprochlorid-Cuprichlorid-Schmelze in wäßriger Salzsäure aufgelöst und mit einem Oxydationsmittel, z. B. Luft oder Sauerstoff, zu Cuprichlorid wieder oxydiert. Im gesamten werden bei dieser Manipulation 80% des vorhandenen Cuprichlorids bei der angegebenen Temperatur zu Cuprocblorid umgesetzt.Process for obtaining chlorine from hydrogen chloride According to patent 1068 676, chlorine is expelled by melting cupric chloride at 300 to 400 ° C. B. air or oxygen, re-oxidized to cuprichloride. In total, during this manipulation, 80% of the cupric chloride present is converted to cuprocbloride at the specified temperature.
Verfährt man aber im kontinuierlichen Kreislaufprozeß mit möglichst großem Durchsatz, so fällt die Umsetzung von Cuprichlorid zum Cuprochlorid ziemlich rapid ab. Gleicht man diesen Nachteil durch Erhöhen der Temperatur aus, so gehen mit dem abziehenden Chlor größere Mengen des leicht verdampfbaren Cuprichlorids mit, was zu unliebsamen Erscheinungen, besonders aber zu Verstopfungen der Leitungen, führt.But if you proceed in a continuous cycle process with as possible high throughput, the conversion of cupric chloride to cuprous chloride falls quite a bit rapidly from. If you compensate for this disadvantage by increasing the temperature, so go with the withdrawing chlorine, larger amounts of the easily evaporable cuprichloride with what can lead to unpleasant phenomena, but especially to blockages of the pipes, leads.
Um die Verhältnisse der Dampftensionen von Chlor-Cuprichlorid-Cuprochlorid zugunsten des sich abspaltenden Chlors zu verschieben, ist es vorteilhaft, ein Trägergas in die Schmelze oder auf deren Oberfläche zu blasen. So zeigt sich, daß beim Durchleiten von heißem Stickstoffgas durch die Schmelze ein wesentlich höherer Umsatz in der gleichen Zeiteinheit erreicht werden kann.About the ratios of the vapor densities of chlorine-cuprichloride-cuprochloride To shift in favor of the chlorine which is split off, it is advantageous to use a carrier gas to blow into the melt or on its surface. So it turns out that when passing through of hot nitrogen gas through the melt a much higher conversion in the same time unit can be achieved.
Verwendet man Luft, Stickstoff oder sonst ein schwer kondensierbares Gas, so wird das austretende Chlor verdünnt, und man ist gezwungen, das erhaltene Chlor nach den bekannten Verfahren durch selektive Druckdestillation rein darzustellen.If you use air, nitrogen or something that is difficult to condense Gas, then the emerging chlorine is diluted, and one is forced to use the To produce pure chlorine by the known process by selective pressure distillation.
Es wurde gefunden, daß man als Trägergas überhitzten Wasserdampf oder Chlorwasserstoff verwenden kann. Der Umsatz von Cupri- zu Cuprochlorid erfolgt z B. bei 360° C in überraschend kurzer Zeit, so daß bei sonst gleichbleibenden Bedingungen der Chloranfall um 30 bis 50% steigt.It has been found that the carrier gas superheated steam or Can use hydrogen chloride. The conversion of cupric to cuprous chloride takes place z B. at 360 ° C in a surprisingly short time, so that with otherwise constant conditions the amount of chlorine increases by 30 to 50%.
Die Abscheidung des Wasserdampfes mit dem ausgetragenen Chlor erfolgt durch einfache Kondensation, die Abscheidung des Chlorwasserstoffes durch gemeinsames Hindurchleiten durch Wasser, wobei der Chlorwasserstoff wieder Salzsäure bildet und diese wiederum zur Oxydation eingesetzt wird. In beiden Fällen entstehen somit keine zusätzlichen Energieaufwendungen, da Wasserdampf in reichlichen Mengen aus dem Auflösegefäß der Schmelze entweicht und Chlorwasserstoff aus der Entstehungszone vor der Absorption zu Salzsäure oder aus etwa 30%iger Salzsäure durch einfache Destillation bis zu 220/u ausgetrieben wird. Das Kochen kann wieder durch das Auflösen der in Salzsäurelösung laufenden Schmelze erfolgen.The separation of the water vapor with the discharged chlorine takes place by simple condensation, the separation of the hydrogen chloride by common Passing through water, the hydrogen chloride forming hydrochloric acid again and this in turn is used for oxidation. In both cases, therefore, arise no additional energy expenditure, as water vapor is produced in copious amounts the melt escapes from the dissolving vessel and hydrogen chloride from the zone of formation before absorption to hydrochloric acid or from about 30% hydrochloric acid by simple distillation up to 220 / u is expelled. Cooking can be restored by dissolving the in Hydrochloric acid solution can be carried out in the melt.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DET17558A DE1088934B (en) | 1959-12-04 | 1959-12-04 | Process for obtaining chlorine from hydrogen chloride |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DET17558A DE1088934B (en) | 1959-12-04 | 1959-12-04 | Process for obtaining chlorine from hydrogen chloride |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1088934B true DE1088934B (en) | 1960-09-15 |
Family
ID=7548628
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DET17558A Pending DE1088934B (en) | 1959-12-04 | 1959-12-04 | Process for obtaining chlorine from hydrogen chloride |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1088934B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3542520A (en) * | 1967-12-27 | 1970-11-24 | Sun Oil Co | Modified "deacon" process |
-
1959
- 1959-12-04 DE DET17558A patent/DE1088934B/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3542520A (en) * | 1967-12-27 | 1970-11-24 | Sun Oil Co | Modified "deacon" process |
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