DE2163711C3 - Process for the production of sulphate-containing, basic aluminum chlorides - Google Patents
Process for the production of sulphate-containing, basic aluminum chloridesInfo
- Publication number
- DE2163711C3 DE2163711C3 DE19712163711 DE2163711A DE2163711C3 DE 2163711 C3 DE2163711 C3 DE 2163711C3 DE 19712163711 DE19712163711 DE 19712163711 DE 2163711 A DE2163711 A DE 2163711A DE 2163711 C3 DE2163711 C3 DE 2163711C3
- Authority
- DE
- Germany
- Prior art keywords
- aluminum
- aluminum hydroxide
- hydroxide
- sulfuric acid
- hydrochloric acid
- 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
- VSCWAEJMTAWNJL-UHFFFAOYSA-K Aluminium chloride Chemical class Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 title claims description 15
- QAOWNCQODCNURD-UHFFFAOYSA-L sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 title claims description 15
- 238000000034 method Methods 0.000 title claims description 6
- 238000004519 manufacturing process Methods 0.000 title claims 5
- WNROFYMDJYEPJX-UHFFFAOYSA-K Aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 20
- VEXZGXHMUGYJMC-UHFFFAOYSA-N HCl Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 18
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 18
- 239000000243 solution Substances 0.000 claims description 10
- 239000007787 solid Substances 0.000 claims description 8
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 239000011541 reaction mixture Substances 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 4
- ZGRQKCWNBYXGOB-UHFFFAOYSA-H dialuminum;chloride;pentahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[Al+3].[Al+3].[Cl-] ZGRQKCWNBYXGOB-UHFFFAOYSA-H 0.000 claims description 4
- 239000000047 product Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000005755 formation reaction Methods 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical class [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 7
- 229910052782 aluminium Inorganic materials 0.000 claims 6
- 239000007864 aqueous solution Substances 0.000 claims 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-M chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims 3
- 150000001875 compounds Chemical class 0.000 claims 3
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L Calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims 2
- 239000002253 acid Substances 0.000 claims 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims 2
- 238000010790 dilution Methods 0.000 claims 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxyl anion Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims 2
- 150000003839 salts Chemical class 0.000 claims 2
- 239000011780 sodium chloride Substances 0.000 claims 2
- OVSKIKFHRZPJSS-UHFFFAOYSA-N 2,4-Dichlorophenoxyacetic acid Chemical compound OC(=O)COC1=CC=C(Cl)C=C1Cl OVSKIKFHRZPJSS-UHFFFAOYSA-N 0.000 claims 1
- 229960003563 Calcium Carbonate Drugs 0.000 claims 1
- 241001676573 Minium Species 0.000 claims 1
- 241000282941 Rangifer tarandus Species 0.000 claims 1
- 241000282898 Sus scrofa Species 0.000 claims 1
- 239000006227 byproduct Substances 0.000 claims 1
- 229910000019 calcium carbonate Inorganic materials 0.000 claims 1
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 claims 1
- 239000002994 raw material Substances 0.000 claims 1
- 239000007858 starting material Substances 0.000 claims 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims 1
- 239000011593 sulfur Substances 0.000 claims 1
- 229910052717 sulfur Inorganic materials 0.000 claims 1
- 239000000725 suspension Substances 0.000 claims 1
- 239000000460 chlorine Substances 0.000 description 4
- 229910052801 chlorine Inorganic materials 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 3
- YVKMMZAFUFUAAX-UHFFFAOYSA-N aluminum;tetrahydrate Chemical compound O.O.O.O.[Al] YVKMMZAFUFUAAX-UHFFFAOYSA-N 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000010414 supernatant solution Substances 0.000 description 1
Description
erreicht, daß die sulfathaltigen, basischen Aluminiumchloridlösungen in einer für technische Zwecke ausreichenden Geschwindigkeit gebildet werden.achieved that the sulfate-containing, basic aluminum chloride solutions be formed at a speed sufficient for technical purposes.
Durch intensive Durchmischung während der Umsetzung kann eine beträchtliche Erhöhung der Um-Satzgeschwindigkeit erzielt werden. Die Gesamtreaktionszeit ist dann kürzer als bei der Durchführung der Umsetzung in zwei Stufen.Intensive mixing during the implementation can considerably increase the conversion rate be achieved. The total reaction time is then shorter than when performing the Implementation in two stages.
Die Wirtschaftlichkeit des Prozesses wird durch den Einsatz von überschüssigem Aluminiumhydroxid nicht gemindert, da der verbleibende Rückstand von der gebildeten Lösung des sulfathaltigen, basischen Aluminiumchlorids abgetrennt und zusammen mit frischem Aluminiumhydroxid wieder für den folgenden Rückstand verwendet werden kann. Auch die wiederholte Rückführung über zahlreiche Zyklen hat keinen nachteiligen Einfluß auf die Bildungsgeschwindigkeit der sulfathaltigen, basischen Aluminiumchloride und auf die Qualität der erhaltenen Produkte, wenn" ein Aluminiumhydroxid genügender Reinheit verwendet wird,The economy of the process is not reduced by the use of excess aluminum hydroxide reduced, since the remaining residue is from the solution formed of the sulfate-containing, basic aluminum chloride separated and together with fresh aluminum hydroxide again for the following residue can be used. Repeated recycling over numerous cycles also has no disadvantage Influence on the rate of formation of the sulfate-containing, basic aluminum chlorides and on the quality of the products obtained if "an aluminum hydroxide of sufficient purity is used,
In einen emaillierten festen Rührbehälter, der mit einem Tauchrohr zum Einleiten von Wasserdampf ausgerüstet war und eine gute Wärmeisolation besaß, wurden 56,1 kg 39%ige Salzsäure gegeben. Die Salzsäure wurde unter Rühren mit 37,3 kg Tonerdehydrat, dessen Al2O3-Gehalt 23,9 kg betrug, versetzt. Außerdem wurden 26,6 kg Tonerdehydratrückstand aus einem vorausgegangenen Ansatz zugefügt, welcher einen Al2O3-GeImIt von 8,1 kg hatte und außerdem 2,9 kg Chlor und 1,7 kg Sulfat enthielt. Anschließend wurden noch 4,6 kg einer 63%igen Schwefelsäure zugegeben. Darauf wurde der Behälter druckfest verschlossen und zur Aufheizung des Gemisches Wasserdampf direkt in den Behälter eingeleitet. Nach einer Rührzeit von etwa 15 min ergab sich im Reaktionsgemisch innerhalb von wenigen Minuten ein Temperaturanstieg von 60 auf 115° C und anschließend ein etwas langsamerer Anstieg bis auf 1700C. Die Mischung wurde noch 90 min lang bei dieser Temperatur gerührt. Danach wurde nach Unterbrechung der Dampfzufuhr zum Entspannen und Abkühlen der Reaktionsmischung ein Behälterventil geöffnet. Nachdem sich der größte Teil des ungelösten festem Rückstandes abgesetzt hatte, wurde die überstehende Lösung mittels Druckluft aus dem Behälter durch das Tauchrohr auf eine Filiernutsche gedrückt und unter vermindertem Druck von den restlichen Feststoffteilchen abgetrennt. Dabei wurden56.1 kg of 39% strength hydrochloric acid were placed in an enamelled solid stirred tank equipped with a dip tube for introducing water vapor and with good thermal insulation. The hydrochloric acid was admixed with 37.3 kg of alumina hydrate, the Al 2 O 3 content of which was 23.9 kg, with stirring. In addition, 26.6 kg of alumina hydrate residue from a previous batch were added, which had an Al 2 O 3 content of 8.1 kg and also contained 2.9 kg of chlorine and 1.7 kg of sulfate. Then 4.6 kg of 63% strength sulfuric acid were added. The container was then closed pressure-tight and water vapor was introduced directly into the container to heat the mixture. After stirring for about 15 min resulted in the reaction mixture within a few minutes a temperature rise from 60 to 115 ° C and then a somewhat slower rise up to 170 0 C. The mixture was stirred for a further 90 minutes at this temperature. Thereafter, after the supply of steam had been interrupted, a container valve was opened to relax and cool the reaction mixture. After most of the undissolved solid residue had settled, the supernatant solution was pressed from the container through the dip tube onto a suction filter using compressed air and separated from the remaining solid particles under reduced pressure. There were
so Π 1,5 kg Filtrat gewonnen, das 20,5 kg Al2O3, 20,6 kg Chlor und 1,9 kg Sulfat enthielt. Die sulfathaltige, basische Aluminiumchloridlösung hatte somit einen AI2O3-Gehalt von 18,4%. Das Produkt entsprach in seiner Zusammensetzung der Formelthus Π 1.5 kg of filtrate obtained, which contained 20.5 kg of Al 2 O 3 , 20.6 kg of chlorine and 1.9 kg of sulfate. The sulfate-containing, basic aluminum chloride solution thus had an Al 2 O 3 content of 18.4%. The composition of the product corresponded to the formula
[Al(OH)ll47Clll45(SO4)0lM]n.[Al (OH) 1147 Cl 1145 (SO 4 ) 0lM ] n .
Der Gesamtrückstand wog 32.6 kg und hatte einen Feststoff gehalt von 13,5 kg. Der Gehalt des Rückstandes an Al2O3 betrug 11,2 kg, an Chlor 3,6 kg und an Sulfat 2,3 kg. Dieser Rückstand wurde dem nächsten Ansatz zugegeben.The total residue weighed 32.6 kg and had a solids content of 13.5 kg. The Al 2 O 3 content of the residue was 11.2 kg, chlorine 3.6 kg and sulfate 2.3 kg. This residue was added to the next batch.
Claims (2)
haltung eines Verhältnisses zwischen Cl und SO4 Die Erfindung betrifft nun ein Verfahren, zur Her-where χ + y + ζ = 3 and y + ζ is a value of a suspension of calcium carbonate in water from between 1 and 2 and 2 has a value between 0.02. Crystalline calcium sulfate dihydrate and 0.3, in the form of aqueous solutions, are formed. The disadvantage of this process is that by converting an aqueous, excessively used, high-percentage sulfur solution of aluminum chloride with solid aluminum acid into a worthless by-product (aluminum hydroxide and sulfuric acid to form calcium sulfate) in a pressure reactor,
maintaining a ratio between Cl and SO 4 The invention now relates to a method for producing
zugefügt wird, daß sich die gewünschte Verbindung [Al(OHxCI1,(SO4)z/2]„ (yz / 2) from 8: 1 to 80: 1 added, with aluminum hydroxide in at least such an amount of the general formula
is added that the desired compound [Al (OHxCl 1 , (SO 4 ) z / 2 ] "
zwischen 140 und 170° C. 60 Bei der technischen Durchführung des erfindungs-A ratio of products between Cl and SO 4 (yz / 2) between 8: 1 and 40: 1 with an Al 2 O 3 content of up to about 20 by weight is preferably set in the mixture. The preferred temperature range is to be obtained in percent
between 140 and 170 ° C. 60 In the technical implementation of the invention
Priority Applications (13)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712163711 DE2163711C3 (en) | 1971-12-22 | Process for the production of sulphate-containing, basic aluminum chlorides | |
FI3743/71A FI53963C (en) | 1971-02-19 | 1971-12-30 | ALUMINUM CHLORIDE FRAME STATION |
IT20024/72A IT951884B (en) | 1971-02-19 | 1972-01-31 | PROCEDURE FOR PREPARING BASIC ALUMINUM CHLORIDE CONTAINING SOL FATES |
NL7201481.A NL166241C (en) | 1971-02-19 | 1972-02-04 | PROCESS FOR PREPARING SULFATE-BASED ALUMINUM CHLORIDES |
SE7201333A SE372497B (en) | 1971-02-19 | 1972-02-04 | |
FR7204189A FR2125337B1 (en) | 1971-02-19 | 1972-02-08 | |
BE779303A BE779303A (en) | 1971-02-19 | 1972-02-11 | PROCESS FOR THE PRODUCTION OF BASIC ALUMINUM CHLORIDES CONTAINING SULPHATE IONS |
US227301A US3894144A (en) | 1971-02-19 | 1972-02-17 | Process for making sulfate-containing basic aluminum chloride |
GB750572A GB1347413A (en) | 1971-02-19 | 1972-02-17 | Method of producing basic sulphate-containing aluminium chlorides |
DK76472A DK143396C (en) | 1971-02-19 | 1972-02-18 | METHOD OF PREPARING SULPHATHIC BASIC ALUMINUM CHLORIDE |
AT136572A AT311922B (en) | 1971-02-19 | 1972-02-18 | Process for the production of basic aluminum chlorides containing sulphate |
NO486/72A NO130793C (en) | 1971-02-19 | 1972-02-18 | |
SU1749788A SU450780A1 (en) | 1971-02-19 | 1972-02-18 | The method of obtaining basic aluminum chlorides |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712163711 DE2163711C3 (en) | 1971-12-22 | Process for the production of sulphate-containing, basic aluminum chlorides |
Publications (3)
Publication Number | Publication Date |
---|---|
DE2163711A1 DE2163711A1 (en) | 1973-06-28 |
DE2163711B2 DE2163711B2 (en) | 1976-07-01 |
DE2163711C3 true DE2163711C3 (en) | 1977-02-10 |
Family
ID=
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