US2086499A - Process for the manufacture of stable, solid, water-soluble aluminum acetate - Google Patents
Process for the manufacture of stable, solid, water-soluble aluminum acetate Download PDFInfo
- Publication number
- US2086499A US2086499A US45355A US4535535A US2086499A US 2086499 A US2086499 A US 2086499A US 45355 A US45355 A US 45355A US 4535535 A US4535535 A US 4535535A US 2086499 A US2086499 A US 2086499A
- Authority
- US
- United States
- Prior art keywords
- aluminum acetate
- solid
- water
- stable
- manufacture
- 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
- HDYRYUINDGQKMC-UHFFFAOYSA-M acetyloxyaluminum;dihydrate Chemical compound O.O.CC(=O)O[Al] HDYRYUINDGQKMC-UHFFFAOYSA-M 0.000 title description 28
- 229940009827 aluminum acetate Drugs 0.000 title description 28
- 239000007787 solid Substances 0.000 title description 13
- 238000000034 method Methods 0.000 title description 10
- 238000004519 manufacturing process Methods 0.000 title description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 21
- 239000000243 solution Substances 0.000 description 19
- 238000001704 evaporation Methods 0.000 description 5
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 238000001035 drying Methods 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 2
- 238000001953 recrystallisation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 150000001447 alkali salts Chemical class 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- WCOATMADISNSBV-UHFFFAOYSA-K diacetyloxyalumanyl acetate Chemical class [Al+3].CC([O-])=O.CC([O-])=O.CC([O-])=O WCOATMADISNSBV-UHFFFAOYSA-K 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
Description
Patented July 6, 1937 UNITED STATES PATENT OFFICE PROCESS FOR THE IVANUFACTURE OF STA- BLE, SOLID, WATER-SOLUBLE ALUMINUM ACETATE No Drawing. Application October 16, 1935, Serial No. 45,355. In Germany March 25, 1933 4 Claims.
The invention relates to the manufacture of solid, water-soluble aluminum acetate which is stable to storage. It has been found that solid, water-soluble aluminum acetate can be obtained 5 in a simple way, i. e. without maintaining low temperature limits and without the use of expensive plants, by evaporating to dryness aluminum acetate solutions of relatively high basicity, namely solutions containing up to 3.9 mols of acetic acid for 1 mol. of aluminum oxide.
Heretofore, aluminum acetate has been put on the market almost exclusively in the form of aqueous solutions. Aqueous solutions of aluminum acetate, however, have two disadvantages:
Firstly, they are rather considerably diluted and therefore require high transport costs and large vessels. Secondly, they have only a limited durability, they become turbid in the course of time and gradually deposit a sediment so that they become unsaleable and are rejected by the consumer as being unsatisfactory.
Efforts have therefore been made for some considerable time either to prepare more durable solutions, or if possible to produce the aluminum acetate in the solid form in order to reduce the transport costs and the size of the transport vessels, and above all to provide the possibility of having to prepare a solution only shortly before use, thereby obviating the premature deterioration of dissolved supplies.
Thus, it has been proposed to evaporate down the usual A;-basic aluminum acetate solution at temperatures below 38 C. There is thus obtained a gum-like mass which although soluble at first,
5 loses its solubility after some time, either partly or entirely. This change in the mass is probably attributable to a re-crystallization resulting in the known finely-crystalline insoluble -basic aluminum acetates. Moreover, the gum-like na- 40 ture of the produce is not a practically useful form. It has also been proposed to obtain solid aluminum acetate from aqueous solutions of aluminum acetate by means of atomization drying. This method of working does not provide products of satisfactory solubility. In addition, it necessitates complicated and very expensive plant and therefore is not carried out on a commercial scale.
The present invention relates to a new process whereby a satisfactory solid, water-soluble aluminum acetate, which is stable to storage, may be obtained from its solutions.
It has in fact been recognized that the ability 55 to provide such a satisfactory solid aluminum acetate depends upon the correct choice of the basicity of the aluminum acetate solution employed. It has been found in an entirely unexpected manner that if the more than -basic aluminum acetate solutions, which in themselves 5 are only temporarily stable and hence scarcely considered by the industry, are worked up further immediately after their preparation, even under conditions which are rather severe in regard to the temperature and duration of drying, they can 10 be converted into dry products in a solid pulverizable form and possessing outstanding durability and solubility in water. Apparently, during the evaporation of the more than -basic aluminum acetate solutions, the formation of -basic 15 and less basic salts which are incompletely soluble or insoluble does not take place. The dry residues are probably to be regarded as solid sols wherein re-crystallization processes resulting in insoluble salts do not take place.
The process according to the invention therefore comprises evaporating to dryness aluminum acetate solutions which contain less than 4 mols of acetic acid for 1 mol. of aluminum oxide. Preferably solutions containing 2.8 mols to 3.8 25 mols of acetic acid for 1 mol. of aluminum oxide are employed.
The present invention renders it possible to dry aluminum acetate solutions with simpler technical means and at a lower cost, for example 30 in shallow dishes or pans or other suitable drying apparatus, with or without vacuum.
The advantages of the new process therefore are that it is hereby possible, in a technically simple manner and without the use of special 35 added substances, to produce solid, water-soluble aluminum acetate which is stable to storage.
Examples 1. An aluminum acetate solution containing 40 30 grams of A1203 per litre and 3.25 mols of CHsCOOH (the combined acetic acid being computed as free acetic acid) for one mol. of A1203 is evaporated in large shallow dishes at a temperature of to C. until a dry residue is left. 45 The latter may then be pulverized. It is durable and soluble in water.
2. An aluminum acetate solution containing 40 grams of A1203 per litre and 3.? mols of CHsCOOH for 1 mol. of A1203 is dried on a cylinder drier heated with steam of 0.2 to 1 atmosphere. The resulting fine flakes are put on the market in that form or pulverized.
3. An aluminum acetate solution as in Ex- 55 ample 1 or 2 is dried in a vacuum drier at 50 to 90 C.
It is advisable to work up the aluminum acetate solutions intended for drying immediately after their preparation in order to obviate reactions or ageing phenomena.
I claim:
1. The process for the manufacture of solid,
water-soluble aluminum acetate which is stable to storage, which comprises evaporating to dryness aluminum acetate solutions containing approximately 2.8 to 3.8 mols of acetic acid for 1 mol. of aluminum oxide. V
2. The process for the manufacture of solid,
Water-soluble aluminum acetate which is stable to storage, comprising evaporating aluminum acetate solutions containing approximately 2.8
to 3.8 mols of acetic acid for 1 mol. of aluminum oxide to dryness on thin-layer driers.
3. The process according to claim 1, wherein the aluminum acetate solutions employed are THEODC JR HENNIG.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2086499X | 1933-03-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2086499A true US2086499A (en) | 1937-07-06 |
Family
ID=7984237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US45355A Expired - Lifetime US2086499A (en) | 1933-03-25 | 1935-10-16 | Process for the manufacture of stable, solid, water-soluble aluminum acetate |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2086499A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2595416A (en) * | 1948-09-29 | 1952-05-06 | Universal Oil Prod Co | Production of modified forms of alumina |
| US2824042A (en) * | 1954-06-18 | 1958-02-18 | Walter G Gibbons | Composition for preparation of burow's solution |
| US3014055A (en) * | 1958-12-15 | 1961-12-19 | Nalco Chemical Co | Water soluble complexes of alumina |
| US4327032A (en) * | 1979-01-16 | 1982-04-27 | Ciba-Geigy Corporation | Acicular aluminium salts of carboxylic acids and processes for their preparation |
| US4514227A (en) * | 1981-12-11 | 1985-04-30 | Canadian Patents And Development Limited | Method of manufacturing a foundry mould mix containing a mould binder |
| US5233065A (en) * | 1992-07-13 | 1993-08-03 | Zirconium Technology Corporation | Method of preparing stable aluminum acetate solutions |
-
1935
- 1935-10-16 US US45355A patent/US2086499A/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2595416A (en) * | 1948-09-29 | 1952-05-06 | Universal Oil Prod Co | Production of modified forms of alumina |
| US2824042A (en) * | 1954-06-18 | 1958-02-18 | Walter G Gibbons | Composition for preparation of burow's solution |
| US3014055A (en) * | 1958-12-15 | 1961-12-19 | Nalco Chemical Co | Water soluble complexes of alumina |
| US4327032A (en) * | 1979-01-16 | 1982-04-27 | Ciba-Geigy Corporation | Acicular aluminium salts of carboxylic acids and processes for their preparation |
| US4514227A (en) * | 1981-12-11 | 1985-04-30 | Canadian Patents And Development Limited | Method of manufacturing a foundry mould mix containing a mould binder |
| US5233065A (en) * | 1992-07-13 | 1993-08-03 | Zirconium Technology Corporation | Method of preparing stable aluminum acetate solutions |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2086499A (en) | Process for the manufacture of stable, solid, water-soluble aluminum acetate | |
| JPS6084245A (en) | Solid magnesium lactate addition-bonded with large quantity of lactic acid and manufacture | |
| US1902889A (en) | Industbie axtiengesellschaft | |
| US2842451A (en) | Aqueous vehicles for forming water-resistant films | |
| US2522488A (en) | Water-soluble salt of 2-4 dichloro-phenoxy acetic acid and method of producing same | |
| US2651576A (en) | Caramel color compositions | |
| GB452065A (en) | Improved manufacture of solid, water-soluble aluminium acetate | |
| US2833821A (en) | Preparation of calcium lysinate | |
| US3049433A (en) | Stabilized cellulose derivatives and process | |
| US2116783A (en) | Preparation of formaldehyde concentrates | |
| NO763901L (en) | ||
| AT153815B (en) | Process for the production of solid, water-soluble aluminum acetate. | |
| FR2523585A1 (en) | PROCESS FOR STABILIZING IRRADIATED CARBOXYMETHYLCELLULOSE | |
| US1936836A (en) | Manufacture of water-free ethyl alcohol | |
| US46973A (en) | Improved process for obtaining a condensed extract of hops | |
| CH232279A (en) | Process for the preparation of a water-soluble, higher molecular weight acyl biguanide. | |
| US2794764A (en) | Compositions containing calcium quinate and calcium gluconate and/or calcium levulinate | |
| US2651662A (en) | Treatment of pentaerythritol mother liquor | |
| US1865111A (en) | Hans kattetvrann | |
| US2330452A (en) | Method of making mercuric naphthenate | |
| GB435871A (en) | Manufacture of preparations for improving textiles | |
| US3051734A (en) | Method of making diglycerides | |
| US1833506A (en) | Organic calcium phosphate and improved method of making same | |
| CH187114A (en) | Process for the production of solid, storage-stable, water-soluble basic aluminum acetate. | |
| US2155069A (en) | Glassy resinlike ferric sulphate and method of preparing the same |