DE603047C - Production of poorly soluble salts of hydrofluoric acid - Google Patents
Production of poorly soluble salts of hydrofluoric acidInfo
- Publication number
- DE603047C DE603047C DE1930603047D DE603047DD DE603047C DE 603047 C DE603047 C DE 603047C DE 1930603047 D DE1930603047 D DE 1930603047D DE 603047D D DE603047D D DE 603047DD DE 603047 C DE603047 C DE 603047C
- Authority
- DE
- Germany
- Prior art keywords
- hydrofluoric acid
- production
- poorly soluble
- soluble salts
- weight
- 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
- 239000011780 sodium chloride Substances 0.000 title claims description 15
- KRHYYFGTRYWZRS-UHFFFAOYSA-N HF Chemical class F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 title claims description 14
- 150000003839 salts Chemical class 0.000 title claims description 11
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 239000007787 solid Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 2
- 229910052788 barium Inorganic materials 0.000 claims description 2
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium(0) Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims description 2
- 239000000706 filtrate Substances 0.000 claims description 2
- 150000004679 hydroxides Chemical class 0.000 claims description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 2
- 239000011591 potassium Substances 0.000 claims description 2
- 229910052700 potassium Inorganic materials 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- KEAYESYHFKHZAL-UHFFFAOYSA-N sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 230000004907 flux Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxyl anion Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims 1
- 150000003568 thioethers Chemical class 0.000 claims 1
- 235000002639 sodium chloride Nutrition 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 5
- FAPWRFPIFSIZLT-UHFFFAOYSA-M sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 5
- KWYUFKZDYYNOTN-UHFFFAOYSA-M potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 4
- 230000001376 precipitating Effects 0.000 description 3
- OHORFAFFMDIQRR-UHFFFAOYSA-P Hexafluorosilicic acid Chemical class [H+].[H+].F[Si-2](F)(F)(F)(F)F OHORFAFFMDIQRR-UHFFFAOYSA-P 0.000 description 2
- ZUYFLSARRQBQPE-UHFFFAOYSA-M [Cl-].[Ba+] Chemical compound [Cl-].[Ba+] ZUYFLSARRQBQPE-UHFFFAOYSA-M 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L na2so4 Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate dianion Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N Carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N Silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- -1 chlorine barium Chemical compound 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 150000004673 fluoride salts Chemical class 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 239000012452 mother liquor Substances 0.000 description 1
- 229940072033 potash Drugs 0.000 description 1
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 1
- 235000015320 potassium carbonate Nutrition 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000002035 prolonged Effects 0.000 description 1
- 101700006972 sif1 Proteins 0.000 description 1
- 101700081395 sif2 Proteins 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000001187 sodium carbonate Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- OTMNKCRTGBGNPN-UHFFFAOYSA-N sulfanylidenebarium Chemical compound [Ba]=S OTMNKCRTGBGNPN-UHFFFAOYSA-N 0.000 description 1
- 150000004763 sulfides Chemical class 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/08—Compounds containing halogen
- C01B33/10—Compounds containing silicon, fluorine, and other elements
- C01B33/103—Fluosilicic acid; Salts thereof
Description
Herstellung von schwer löslichen Salzen der Kieselflußsäure Bei der Herstellung von Kieselfluornatrium, Kieselfluorkalium und Kieselfluorbarium durch Umsetzung von Kieselflußsäure mit geeigneten Salzen des Natriums, Kaliums oder Bariums erhält man das Kieselflüorsalz des entsprechenden Kations meist in schleimiger, schlecht filtrierbarer und schlecht aaswaschbarer Form, wenn man die Reaktionsbestandteile lediglich so miteinander vermischt, daß man in eine Menge der einen Reaktionskomponente die äquivalente Menge der anderen einbringt. Auch durch langsames Eintragen der einen Komponente und durch das sonst wirksame längere Verrühren der Fällung wird die Filtrierfähigkeit des gefällten Salzes nicht verbessert, besonders wenn stärkere Kieselflußsäure benutzt wird.Production of sparingly soluble salts of silicofluoric acid in the Manufacture of silicofluorosodium, silicofluorotassium and silicofluorobarium by Reaction of hydrofluoric acid with suitable salts of sodium, potassium or barium the siliceous fluoride salt of the corresponding cation is usually obtained in slimy, poorly filterable and poorly washable form, if one considers the reaction constituents only mixed with one another in such a way that one reacts in an amount of one reaction component brings in the equivalent amount of the others. Also by slowly entering the a component and the otherwise effective prolonged stirring of the precipitation the filterability of the precipitated salt does not improve, especially if stronger Hydrofluoric acid is used.
Es wurde nun gefunden, daß ein sandiges, leicht abfiltrierbares Produkt erhalten werden kann, wenn die Fällung so vorgenommen wird, daß in einen gegebenenfalls noch Bodenkörper enthaltenden Teil der Mutterlauge eines Ansatzes oder auch in Wasser, die Kieselflußsäure und das ausfällende Salz oder Fälimittel in fester oder gelöster Form gleichzeitig und in möglichst äquivalenten Teilmengen fortlaufend eingetragen wird. Wesentlich ist hierbei, daß in keinem Zeitpunkt erhebliche Überschüsse des einen oder anderen Reaktionsbestandteiles in dem Ansatz vor-.,b.anden sind. Als ausfällendes Mittel können sowohl solche Salze benutzt werden, aus denen die Kieselflußsäure andere Säuren in Freiheit setzt, ,als auch Carbonate, HydroYyde und Sulfide.It has now been found that a sandy, easily filterable product can be obtained if the precipitation is carried out in such a way that optionally Part of the mother liquor of a batch still containing sediment or in water, the hydrofluoric acid and the precipitating salt or precipitating agent in solid or dissolved Form simultaneously and continuously entered in subsets that are as equivalent as possible will. It is essential that at no point in time there should be any significant excess of the one or another reaction component in the approach before -., b.and are. as As a precipitating agent, such salts can be used, from which the silicofluoric acid releases other acids, as well as carbonates, hydroxides and sulfides.
Beispiele i. Aus .einem größeren Vorrat werden je 9o,5 Gewichtsteile Kieselflußsäure (3o,8 H.SiFs) und 25,o Gewichtsteile festes Kochsalz entnommen und gleichzeitig in den Rest eines früheren Ansatzes oder auch in vorgelegtes Wasser (z. B. in 2ooo Gewichtsteile) eingetragen. Wählt man als Gewichtsteile Gramme, so kann das Eintragen dieser Mengen im Verlauf etwa i Minute erfolgen, da in .dieser Zeit die Umsetzung unter Bildung des sandigen Salzes vor sich geht. Nach Beendigung eines Ansatzes kann noch etwa i o Minuten das Rühren fortgesetzt und dann das Kieselfluornatrium abfiltriert werden.Examples i. From a larger supply each becomes 9o.5 parts by weight Silicic acid (3o, 8 H.SiFs) and 25, o parts by weight of solid common salt removed and at the same time in the remainder of an earlier approach or in the water that has already been introduced (e.g. in 2,000 parts by weight). If one chooses grams as parts by weight, so these amounts can be entered in the course of about 1 minute, since this Time the conversion takes place with the formation of the sandy salt. After completion of one batch, stirring can be continued for about 10 minutes and then the silica fluorosodium be filtered off.
2. 103 Gewichtsteile Kieselflußsäure (28 H2SiFs) und 29 Gewichtsteile Natriumsulfat werden, wie in Beispiel x angegeben, behandelt.2. 103 parts by weight of hydrofluoric acid (28 H2SiFs) and 29 parts by weight Sodium sulfate are treated as indicated in Example x.
In beiden Beispielen kann auch statt mit festen Salzen mit Lösungen von Kochsalz oder Natriumsulfat gearbeitet werden.In both examples, solutions can also be used instead of solid salts of table salt or sodium sulfate can be worked.
3. ioo Gewichtsteile Kieselflußsäure (30 0/0 H2 SiFs), 2o Gewichtsteile Soda und 2 Gewichtsteile Kochsalz werden, wie angegeben, behandelt. Die Soda und# das Kochsalz können in fester Form eingetragen werden oder auch in Wasser oder in Filtraten früherer Ansätze vor dem Eintragen gelöst werden.3. ioo parts by weight Kieselflußsäure (30 0/0 H2 SIFS) 2O weight parts of sodium carbonate and 2 parts by weight of sodium chloride are, as indicated, treated. The soda and table salt can be added in solid form or can be dissolved in water or in filtrates from previous approaches before being added.
q.. ioo Gewichtsteile Kieselflußsäure (30 0/0 H2SiFs) und 3o Gewichtsteile Chlorkali werden, wie angegeben, behandelt. An Stelle von Chlorkali können auch andere Kalisalze sowie Pottasche und Kalilauge Verwendung finden.q .. ioo parts by weight Kieselflußsäure (30 0/0 H2SiFs) and 3o parts by weight Chlorkali be, as indicated, treated. Instead of potassium chloride, other potassium salts such as potash and potassium hydroxide can also be used.
5. ioo Gewichtsteile Kieselflußsäure (30 0/0) und ¢9 Gewichtsteile Chlorbarium (BaC12 a H20) werden, vrieangegeben, behandelt. Das Chlorbarium wird z. B. in Wasser gelöst. An Stelle von Chlorbarium können auch Baxiumcarbonat oder auch Schwefelbariumlauge Verwendung finden.5. 100 parts by weight of hydrofluoric acid (30%) and 9 parts by weight Chlorbarium (BaC12 a H20) are, as stated, treated. The chlorine barium will z. B. dissolved in water. Instead of chlorobarium, baxium carbonate or Sulfur barium lye can also be used.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE603047T | 1930-07-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE603047C true DE603047C (en) | 1934-09-21 |
Family
ID=6574960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1930603047D Expired DE603047C (en) | 1930-07-29 | 1930-07-29 | Production of poorly soluble salts of hydrofluoric acid |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE603047C (en) |
-
1930
- 1930-07-29 DE DE1930603047D patent/DE603047C/en not_active Expired
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