DE747098C - Production of salts through base exchange - Google Patents

Production of salts through base exchange

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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
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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
Application number
DEN41172D
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German (de)
Inventor
Henry Johnsen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Norsk Hydro Elektrisk Kvaelstof AS
Original Assignee
Norsk Hydro Elektrisk Kvaelstof AS
Priority date (The priority date 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 date listed.)
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Publication date
Application filed by Norsk Hydro Elektrisk Kvaelstof AS filed Critical Norsk Hydro Elektrisk Kvaelstof AS
Application granted granted Critical
Publication of DE747098C publication Critical patent/DE747098C/en
Expired legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J39/00Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
    • B01J39/02Processes using inorganic exchangers

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  • 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)

PATENTANSPRUCH: Verfahren zur Herstellung von Salzen. bei dem durch eine Schicht eines geeigneten basenaustauschenden Stoffes in unmittelharer Reihenfolge eine Lösung geleitet wird, die das gleiche Anion wie das herzustellende Salz enthält. dann Wasser, lanii eine Lösung, die das gleiche Kation wie das herzustellende Salz enthält, dann Wasser usw., dadurch gekennzeichnet, daß der basenauswechselnde Stoff in einer Korngröße benutzt wird, die zwischen 0,3 und 1,0 mm, vorzugsweise 0,45 bis o,S5 mm, liegt. PATENT CLAIM: Process for the production of salts. at that through a layer of a suitable base-exchanging substance in direct order a solution is passed which contains the same anion as the salt to be produced. then water, lanii a solution that has the same cation as the salt to be made contains, then water, etc., characterized in that the base-exchanging substance is used in a grain size between 0.3 and 1.0 mm, preferably 0.45 to 0.15 mm. Zur Abgrenzung des Anmeldungsgegenstandes vom Stand der Technik sind im Erteilufigsverfahren folgende Druckschriften in Betracht gezogen worden: deutsche Patentschriften ... Nr. 371 796, 612 095, 624 141; USA.-Patentschriften .... Nr. 1 978 447, 1 716 663, 1 527 199; britische Patentschriften ... Nr. 402 770, 403 077; französische Patentschrift . . - 788 692; The Chem. of Water and Sewage Treatment bs Arthur M. Briswell (Book Department the Chemical Catalog Comp. To distinguish the subject of the application from the state of the art are The following publications were considered in the award procedure: German Patents ... Nos. 371 796, 612 095, 624 141; USA patents .... No. 1,978,447, 1,716,663, 1,527,199; British patents ... nos. 402 770, 403 077; French patent specification. . - 788 692; The Chem. Of Water and Sewage Treatment bs Arthur M. Briswell (Book Department the Chemical Catalog Comp. Inc. W.Y. 1928, S. 133, 134); The Journal of the American Water Works association, 1935; 27; Nr. 9, S. 1179; Potash in the greensands of New Yersey, by George Rogers Mansfield, 1922, S. 120/21; Jahrbuch der Königl. Preuß. Geologischen Landesanstalt und Bergakademie, 1906, Bd. 27, Heft 1, S. 93; Zeitschrift für angewandte Chemie, 22. Jahrgang. 1909, Heft 11, s. 1019 bis 1024. Inc. W.Y. 1928, pp. 133, 134); The Journal of the American Water Works association, 1935; 27; No. 9, p. 1179; Potash in the Greensands of New Yersey, by George Rogers Mansfield, 1922, pp. 120/21; Yearbook of the Royal. Prussia. Geological Landesanstalt und Bergakademie, 1906, Vol. 27, Issue 1, p. 93; Journal of Applied Chemistry, 22nd year. 1909, issue 11, p. 1019 to 1024.
DEN41172D 1936-09-22 1937-09-18 Production of salts through base exchange Expired DE747098C (en)

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

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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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (9)

* Cited by examiner, † Cited by third party
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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