US1920289A - Method for dehydrating, without decomposition, hydrated salts - Google Patents
Method for dehydrating, without decomposition, hydrated salts Download PDFInfo
- Publication number
- US1920289A US1920289A US464105A US46410530A US1920289A US 1920289 A US1920289 A US 1920289A US 464105 A US464105 A US 464105A US 46410530 A US46410530 A US 46410530A US 1920289 A US1920289 A US 1920289A
- Authority
- US
- United States
- Prior art keywords
- salt
- salts
- dehydrating
- beryllium
- nitrate
- 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 - Lifetime
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/16—Drying solid materials or objects by processes not involving the application of heat by contact with sorbent bodies, e.g. absorbent mould; by admixture with sorbent materials
Definitions
- This invention relates to method for the. preparation of anhydrous salts, or in other words,-
- the invention is particularly'directedto the preparation of anhydrous salts, which, bynormal methods of dehydrationbecome decomposed.
- a particularly important use of such dehydrated 10 salts is in connectionwith the use of such salts in the electrodeposition of metals from liquid ammonia, wherein salts of'certain metals, as for instance beryllium, are far preferable for use, in anhydrous form rather than in hydrated form.
- salts of'certain metals as for instance beryllium
- ammonium nitrate gradually becomes decomposed under heat, and the final mass is principally anhydrous beryllium nitrate with a relatively small and unimportant amount of ammonium nitrate.
- ammonium nitrate would in no way be objectionable in the contem- ;-in using the dehydrated beryllium nitrate for the electrodeposition of beryllium from liquid ammonia, the ammonium nitrate would not only be not disadvantageous, but would have a distinct advantage in that it raises the solubility of the nitrate in the liquid ammonia.
- the nitrates of metals are not the only salts.
- the preferable way would be to use an ammonium salt of the same acid radical as the salt to "be dehydrated, for instance, if the salt to be dehydrated is an acetate, to use ammonium acetate, and similarly with other salts.
- so beryllium was merely taken for convenience, and we have found that our process is equally operative with salts of aluminum, chromium, zirconium, thorium and many other similar metals which form salts having water of crystallization.
- the method of dehydrating a hydrated salt which consists in introducing the salt to be dey hydrated into a bath of fused ammonium salt.
- the method of dehydrating a hydrated salt which consists in introducing the salt to be dehydrated into a fused bath of an ammonium salt of the same acid as the salt to be dehydrated.
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacture And Refinement Of Metals (AREA)
Description
Patented Aug. 1, 1933 V r V H 1,920,289 METHOD 'FOR DEHYDRATING, WITHOUT DECOMPOSITION, HYDRATED SALTS.
7 Harold Simmons Booth and Gilberta G. Torrey, Cleveland Heights, Ohio NO Drawing. Application June 26, 1930 Serial No. 4 4,105
3 Claims. (o1. 23-50.)
This invention relates to method for the. preparation of anhydrous salts, or in other words,-
the dehydration of salts which normallyjin crystalline form carry one or more molecules of water of crystallization. I v
The invention is particularly'directedto the preparation of anhydrous salts, which, bynormal methods of dehydrationbecome decomposed. A particularly important use of such dehydrated 10 salts is in connectionwith the use of such salts in the electrodeposition of metals from liquid ammonia, wherein salts of'certain metals, as for instance beryllium, are far preferable for use, in anhydrous form rather than in hydrated form. Without in any way limitingthe scope of the invention, we will proceed with the'idescrip tion of the invention, largely utilizing beryllium salts as an example, although'it is but oneof many examples of metals and semi-metals whose salts lend themselves to this practice. W ,7 Perhapsthe best known salt of beryllium is the nitrate'which normally carries with :it four molecules of water. Treatment of this salt' to dehydrate the'same by means of heat or vacuum, causes decomposition of the salt to a basic nitrate, oxides of nitrogen beinggiven off simultaneously with the water. V I
In dehydrating beryllium nitrate by the method of this invention, we would melt ammonium niberyllium nitrate into the fused bath. Under f such circumstances dehydration of the beryllium nitrate takes place under conditions which prevent release Of nitrogen Oxides from the beryllium salt, and, therefore, maintain normal beryllium nitrate. a
The ammonium nitrate gradually becomes decomposed under heat, and the final mass is principally anhydrous beryllium nitrate with a relatively small and unimportant amount of ammonium nitrate.
For most purposes this ammonium nitrate would in no way be objectionable in the contem- ;-in using the dehydrated beryllium nitrate for the electrodeposition of beryllium from liquid ammonia, the ammonium nitrate would not only be not disadvantageous, but would have a distinct advantage in that it raises the solubility of the nitrate in the liquid ammonia.
The nitrates of metals are not the only salts.
which canbe so treated, but identically the same type of reaction can be used in the case of acetates,
thiocyanates and similar salts. 5
In proceeding with the dehydration of salts other than nitrates, the preferable way would be to use an ammonium salt of the same acid radical as the salt to "be dehydrated, for instance, if the salt to be dehydrated is an acetate, to use ammonium acetate, and similarly with other salts.
Where the presence of extraneous ions is not objectionable, in the dehydrated salt, it is quite possible to use ammonium salt of an acid different from the acid of the salt to be dehydrated, thus the same salt might be used for the dehydrationof' a thiocyanate, a cyanide, a halide or any other salt which does not lend itself to ready dehydration by usual methods.
As we have before pointed'out the reference to so beryllium was merely taken for convenience, and we have found that our process is equally operative with salts of aluminum, chromium, zirconium, thorium and many other similar metals which form salts having water of crystallization.
. Having thusdescribed our invention, we claim:
1. The method of dehydrating a hydrated salt, which consists in introducing the salt to be dey hydrated into a bath of fused ammonium salt.
' 2; The method of dehydrating a hydrated salt, which consists in introducing the salt to be dehydrated into a fused bath of an ammonium salt of the same acid as the salt to be dehydrated.
3. The methodof dehydrating beryllium'salts which consists in introducing the beryllium salt into a fused bath of an ammonium salt.
HAROLD SIMMONS BOOTH,
GILBERTA G. TORREY.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US464105A US1920289A (en) | 1930-06-26 | 1930-06-26 | Method for dehydrating, without decomposition, hydrated salts |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US464105A US1920289A (en) | 1930-06-26 | 1930-06-26 | Method for dehydrating, without decomposition, hydrated salts |
Publications (1)
Publication Number | Publication Date |
---|---|
US1920289A true US1920289A (en) | 1933-08-01 |
Family
ID=23842580
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US464105A Expired - Lifetime US1920289A (en) | 1930-06-26 | 1930-06-26 | Method for dehydrating, without decomposition, hydrated salts |
Country Status (1)
Country | Link |
---|---|
US (1) | US1920289A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2643180A (en) * | 1950-11-02 | 1953-06-23 | Olin Mathieson | Method of producing sodium nitrate |
US2800177A (en) * | 1950-11-02 | 1957-07-23 | Olin Mathieson | Production of fused salts from aqueous solutions thereof |
-
1930
- 1930-06-26 US US464105A patent/US1920289A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2643180A (en) * | 1950-11-02 | 1953-06-23 | Olin Mathieson | Method of producing sodium nitrate |
US2800177A (en) * | 1950-11-02 | 1957-07-23 | Olin Mathieson | Production of fused salts from aqueous solutions thereof |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
BE775394A (en) | PROCESS FOR REMOVING AMMONIUM IONS FROM AN AQUEOUS SOLUTION BY CATION EXCHANGE WITH ZEOLITES | |
US1920289A (en) | Method for dehydrating, without decomposition, hydrated salts | |
ES334263A1 (en) | Pyrogenic tio2 pigment and method for producing same | |
FR1214441A (en) | Process for removing water from aqueous liquors | |
FR1464229A (en) | Process for the purification of crude aqueous liquors containing malic acid | |
ES290552A1 (en) | Procedure for obtaining metal copper (Machine-translation by Google Translate, not legally binding) | |
FR792440A (en) | Process for regenerating ferrous metal pickling baths with phosphoric acid | |
GB950774A (en) | The production of cerium (iv) molybdate, tungstate and vanadate | |
BE763658A (en) | PROCESS FOR TREATING TEXTILES TO PREVENT THE PRECIPITATION OF IRON SALTS AND ALKALINO-EARTH METALS AND AGENTS USED FOR THIS PURPOSE | |
GB341386A (en) | A process for producing calcium carbamate | |
GB1073824A (en) | Separation of a 4:4-bipyridylium salt from a mixture containing it | |
GB989926A (en) | New hydroxy amino acid and salts thereof | |
GB1012665A (en) | Alumina catalysts and process for preparing the same | |
GB205563A (en) | Process for the production of aluminium chloride and alumina | |
GB569399A (en) | Purification of guanidine nitrate | |
GB1038005A (en) | Purification of p-aminophenol | |
GB769211A (en) | Process for fractionating starch | |
GB1075162A (en) | Process of preparing purified lac | |
GB392889A (en) | Improvements for the production of alumina from alkaline earth aluminates | |
ES301090A1 (en) | Procedure to precipitate base of tetracycline in a crystal form (Machine-translation by Google Translate, not legally binding) | |
GB630979A (en) | Improvements in or relating to the recovery of salts from dilute solution | |
CH407065A (en) | Process for the production of ammonium chloride from tower liquors of an ammonia soda process | |
CH535776A (en) | Process for the isolation, in concentrated form from an aqueous solution, of optical brighteners | |
FR673792A (en) | Process for the deaccharification of saccharine solutions by the action of lime | |
CH247223A (en) | Process for the production of lime aluminate slag with silica content of at least 9.5%, which is suitable for processing on aluminum oxide. |