DE747098C - Production of salts through base exchange - Google Patents
Production of salts through base exchangeInfo
- Publication number
- DE747098C DE747098C DEN41172D DEN0041172D DE747098C DE 747098 C DE747098 C DE 747098C DE N41172 D DEN41172 D DE N41172D DE N0041172 D DEN0041172 D DE N0041172D DE 747098 C DE747098 C DE 747098C
- Authority
- DE
- Germany
- Prior art keywords
- water
- salt
- solution
- salts
- patents
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J39/00—Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
- B01J39/02—Processes using inorganic exchangers
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Treatment Of Water By Ion Exchange (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Description
Herstellung von Salzen durch Basenaustausch Es ist bekannt, Salze mittels geeigneter hasenaustauschender Stoffe in der Weise herzustellen, daß man durch eine Schicht des basenaustauschenden Stoffes in unmittelbarer Reihenfolge eine Lösung leitet, die das gleiche Anion enthält wie das herzustellende Salz, dann Wasser, hierauf eine Lösung, die das gleiche Kation enthält wie das herzustellende Salz, dann Wasser usw. Hierdurch treten Basenauswechslungen auf, mit dem Ergebnis, daß wechselweise Lösungen des gewünschten Salzes in so hoher Konzentration, daß das Salz durch Kristallisation gewonnen werden kann, gebildet werden und eine Regeneration des basenaustauschenden Stoffes s.tattfindet.Production of salts by base exchange It is known salts by means of suitable hase-exchanging substances in such a way that one through a layer of the base-exchanging substance in immediate order then passes a solution that contains the same anion as the salt to be produced Water, then a solution containing the same cation as the one to be prepared Salt, then water, etc. This causes base exchanges to occur, with the result that alternating solutions of the desired salt in such a high concentration that the salt can be obtained by crystallization, formed and a regeneration of the base-exchanging substance see.
Das Verfahren eignet sich besonders für die Herstellung von Natriumnitrat, wobei man von Calciumnitrat (konzentrierte Lösung) und Natriumchlorid, beispielsweise in Form von Seewasser, ausgeht. The process is particularly suitable for the production of sodium nitrate, taking calcium nitrate (concentrated solution) and sodium chloride, for example in the form of sea water.
Für die praktische Durchführung des Verfahrens ist es von der größten Bedeutung, weitmöglichst die Mischung der beiden Salzlösungen zu verhindern, während sie gleichzeitig nicht mehr als unbedingt notwendig durch das angrenzende Wasser verdünnt werden dürfen. Um diesen beiden einander widersprechenden Forderungen nachzukommen, ist es wichtig, daß sich die Flüssigleiten in einer solchen Weise durch den Zeolith bewegen, daß sie sich soweit wie möglich parallel verschieben. Die vorliegen 4 Erfindung bezieht sich auf ein Mittel zur Erleichterung einer derartigen Parallelverschiebung. It is one of the greatest for the practical implementation of the procedure It is important to prevent the mixture of the two salt solutions as much as possible while at the same time not more than absolutely necessary through the adjacent water may be diluted. To meet these two contradicting demands, it is important that the fluids pass through the zeolite in such a manner move so that they move parallel as much as possible. The present 4 invention relates to a means of facilitating such translation.
Es hat sich nämlich gezeigt daß die Korn größe des benutzten Zeoliths für die Parallelverschiebung eine wesentliche Rolle spielt. It has been shown that the grain size of the zeolite used plays an essential role for the parallel shift.
Das Verfahren gemäß der Erfindung besteht demgemåß darin, daß -als basenaustanschender Stoff ein solcher verwendet wird, dessen Korngröße zwischen 0,3 und 1,0 mm, vorzugsweise 0,45 bis 0,85 mm, liegt.The method according to the invention accordingly consists in that -as base-exchanging substance is used, its Grain size between 0.3 and 1.0 mm, preferably 0.45 to 0.85 mm.
Vorausgesetzt, daß die Korngröße überall die gleiche ist, wird die Parallelverschiebung um so vollkommener, je kleiner die Korngröße ist. Gleichzeitig steigt aber der Widerstand gegen die Bewegung der Flüssigkeit mit abnehmender Korngröße. Der Widerstand wird aber bei Korngrößen unter 0,3 mm so groß, daß die Geschwindigkeit der Flüssigkeit viel zu klein für eine praktische Ausführung des Verfahrens wird. Bei Korngrößen über I,0 mm werden dagegen die Zwischenräume zwischen den Körnern so groß, daß sich die Lösungen zu stark mit den angrenzenden Wasserschichten mischen, wodurch sie stark verdünnt werden. Am schlimmsten sind de Verhältnisse dort, wo eine konzentrierte Salzlösung, z. B. Calciumnitratlösung, sich unmittelbar über reinem Wasser befindet. Teile der schweren Lösung neigen dann dazu, in unregelmäßigen Bahnen zwischen den Zeolithkörnern nach unten zu drängen. wodurch die Parallelverschiebung unvollkommen wird. Dies hat zur Folge, daß z. B. bei der Anwendung der Korngrößen von 1 bis 2 mm, die bei zur Wasserenthärtung benutzten, Kieselsäure enthaltenden basenaustauschenden Stoffe bekannt sind, verdünntere Salzlösungen erhalten werden als bei der Anwendung der vorgeschlagenen Korngrößen. Provided that the grain size is the same everywhere, the The smaller the grain size, the more perfect the parallel shift. Simultaneously but the resistance to the movement of the liquid increases with decreasing grain size. However, with grain sizes below 0.3 mm, the resistance becomes so great that the speed the liquid becomes much too small for the practical execution of the procedure. In the case of grain sizes over 1.0 mm, on the other hand, the spaces between the grains are so big that the solutions mix too strongly with the adjacent water layers, whereby they are greatly diluted. The worst are the conditions where a concentrated saline solution, e.g. B. calcium nitrate solution, immediately above pure water. Parts of the heavy solution then tend to be irregular Forcing webs down between the zeolite grains. whereby the parallel shift becomes imperfect. This has the consequence that, for. B. when applying the grain sizes from 1 to 2 mm, those containing silica used for water softening base-exchanging substances are known, more dilute salt solutions are obtained than when using the suggested grain sizes.
Unter Berücksichtigung der sich aus diesen Verhältnissen ergebenden Grenzen liegt die beste Korngröße zwischen 0,45 und 0,85 mm. Taking into account the resulting from these conditions Limits, the best grain size is between 0.45 and 0.85 mm.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO487292X | 1936-09-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE747098C true DE747098C (en) | 1944-09-08 |
Family
ID=19905781
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEN41172D Expired DE747098C (en) | 1936-09-22 | 1937-09-18 | Production of salts through base exchange |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE423658A (en) |
DE (1) | DE747098C (en) |
FR (1) | FR826635A (en) |
GB (1) | GB487292A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE920545C (en) * | 1943-09-02 | 1954-11-25 | Norsk Hydro Elek Sk Kvaelstofa | Process for the extraction of potash from salt mixtures in aqueous solution, especially salt lake, sea water and brines |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE371796C (en) * | 1916-10-17 | 1923-03-17 | Permutit Akt Ges | Process for the production of base-exchanging substances containing silica |
US1527199A (en) * | 1920-10-08 | 1925-02-24 | Borromite Company Of America | Base-exchange silicate and process of preparing same |
US1716663A (en) * | 1928-03-06 | 1929-06-11 | Pike | Process for production of potassium carbonate |
GB403077A (en) * | 1932-06-02 | 1933-12-04 | Geza Austerweil | Improvements relating to processes for the preparation, separation or purification of salts or salt solutions |
GB402770A (en) * | 1931-06-02 | 1933-12-04 | Geza Austerweil | Improvements relating to processes for the separation or purification of salts, saltsolutions and other solutions |
US1978447A (en) * | 1931-06-02 | 1934-10-30 | Austerweil Geza | Process for the preparation, separation, and purification of salts, salt solutions, and other solutions |
DE612095C (en) * | 1931-12-12 | 1935-04-13 | Luxemburgeoise Mutosel Sa | Process for the production and purification of salts with double conversion with base exchangers |
FR788692A (en) * | 1934-04-13 | 1935-10-14 | Phillips & Pain Ets | Process for obtaining transformation products of substances containing carbon and their application to the treatment of water and salt solutions |
DE624141C (en) * | 1931-06-03 | 1936-01-14 | Luxemburgeoise Mutosel Sa | Process for the extraction of salts |
-
0
- BE BE423658D patent/BE423658A/fr unknown
-
1937
- 1937-09-13 GB GB24873/37A patent/GB487292A/en not_active Expired
- 1937-09-13 FR FR826635D patent/FR826635A/en not_active Expired
- 1937-09-18 DE DEN41172D patent/DE747098C/en not_active Expired
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE371796C (en) * | 1916-10-17 | 1923-03-17 | Permutit Akt Ges | Process for the production of base-exchanging substances containing silica |
US1527199A (en) * | 1920-10-08 | 1925-02-24 | Borromite Company Of America | Base-exchange silicate and process of preparing same |
US1716663A (en) * | 1928-03-06 | 1929-06-11 | Pike | Process for production of potassium carbonate |
GB402770A (en) * | 1931-06-02 | 1933-12-04 | Geza Austerweil | Improvements relating to processes for the separation or purification of salts, saltsolutions and other solutions |
US1978447A (en) * | 1931-06-02 | 1934-10-30 | Austerweil Geza | Process for the preparation, separation, and purification of salts, salt solutions, and other solutions |
DE624141C (en) * | 1931-06-03 | 1936-01-14 | Luxemburgeoise Mutosel Sa | Process for the extraction of salts |
DE612095C (en) * | 1931-12-12 | 1935-04-13 | Luxemburgeoise Mutosel Sa | Process for the production and purification of salts with double conversion with base exchangers |
GB403077A (en) * | 1932-06-02 | 1933-12-04 | Geza Austerweil | Improvements relating to processes for the preparation, separation or purification of salts or salt solutions |
FR788692A (en) * | 1934-04-13 | 1935-10-14 | Phillips & Pain Ets | Process for obtaining transformation products of substances containing carbon and their application to the treatment of water and salt solutions |
Also Published As
Publication number | Publication date |
---|---|
FR826635A (en) | 1938-04-06 |
BE423658A (en) | |
GB487292A (en) | 1938-06-17 |
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