DE411579C - Manufacture of shaped or pressed parts containing borate - Google Patents
Manufacture of shaped or pressed parts containing borateInfo
- Publication number
- DE411579C DE411579C DEC33166D DEC0033166D DE411579C DE 411579 C DE411579 C DE 411579C DE C33166 D DEC33166 D DE C33166D DE C0033166 D DEC0033166 D DE C0033166D DE 411579 C DE411579 C DE 411579C
- Authority
- DE
- Germany
- Prior art keywords
- borax
- shaped
- manufacture
- borate
- parts containing
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B35/00—Boron; Compounds thereof
- C01B35/06—Boron halogen compounds
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B35/00—Boron; Compounds thereof
- C01B35/08—Compounds containing boron and nitrogen, phosphorus, oxygen, sulfur, selenium or tellurium
- C01B35/10—Compounds containing boron and oxygen
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B35/00—Boron; Compounds thereof
- C01B35/08—Compounds containing boron and nitrogen, phosphorus, oxygen, sulfur, selenium or tellurium
- C01B35/10—Compounds containing boron and oxygen
- C01B35/12—Borates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Fireproofing Substances (AREA)
Description
Herstellung von borathaltigen Form- oder Preßstücken. Kristallwasserhaltiger Borax läßt sich nur unter Verlust von Kristallwasser schmelzen, wenn man ihn ohne besondere Vorsichtsmaßnahmen erhitzt. Es ist daher nicht ohne weiteres möglich, durch Schmelzen und Gießen Formgußstücke daraus herzustellen, die den Wassergehalt des verwendeten Borax besitzen. Soll der normale Handelsborax, der bekanntlich ro Mol. Wasser enthält, geschmolzen werden, so tritt der Umstand hinzu, daß Schmelzen, die über 6o° C heiß wurden, bei Abkühlung die Neigung haben, oktaedrischen Borax abzuscheiden. Hierdurch entstehen Mischungen von Kristallen des Dekahydrates mit denen des Pentahvdrates und konzentrierter Boraxlösung, die einen dicken Sirup bilden und nur ganz langsam fest werden.Manufacture of shaped or pressed parts containing borate. More water of crystallization Borax can only be melted with the loss of crystal water if it is used without it special precautions heated. It is therefore not easily possible by melting and pouring it can be used to produce castings that have the water content of the borax used. Should the normal commercial borax, which is known to be ro Mol. Of water, are melted, then there is the fact that melts, which got over 60 ° C, when cooled, tend to have octahedral borax to be deposited. This creates mixtures of crystals of the decahydrate with those of Pentahvdrates and concentrated borax solution, which form a thick syrup and only very slowly become solid.
Es wurde nun die Beobachtung gemacht, daß schon geringe Mengen von Chemikalien die Schmelzbarkeit des Borax derart zu beeinflussen vermögen, daß sich Formstücke daraus herstellen lassen. Die Wahl dieser Zusätze erfolgt unter Berücksichtigung der Verwendungsart der Formstücke. Ein leichteres Schmelzen des kristallwasserhaltigen Borax kann z. B. durch folgende Zusätze hervorgerufen werden: Ätznatron, Ätzkali, Borate, wie Metaborat, Borsäure, Phosphorsäure und ihre Salze, Carbonate usw. Diese können einzeln oder auch gruppenweise zur Anwendung gelangen. Die für das Schmelzen nötige Zusatzmenge ist in weiten Grenzen veränderlich und richtet sich gleichfalls nach dem Verwendungszweck des geformten Borates. Wenn das Ausgießen in Formen längere Zeit in Anspruch nimmt, so ist zu empfehlen, den Borax vorher etwas anzufeuchten, um Verluste an Kristallwasser, welche durch evtl. Verdunstung entstehen können, wieder zu ersetzen. Naturgemäß ist es auch möglich, an Stelle von Borax von anderen borsäurehaltigen Stoffen auszugehen und die Zusätze so zu wählen, daß die für die Verwendung geforderten Bedingungen erhalten werden. Auch Borate bildende Stoffe können in gleicher Weise verarbeitet werden. Beispiel r. Zoo g Borax (Pulver oder Grieß) werden mit 40,- Borsäurepulver gemischt und iin Wasser- oder Dampfbad unter Rühren erwärmt. Das Gemenge schmilzt schnell und verwandelt sich schon unterhalb 6o° C in eine gießbare Masse, die in beliebige Formen gegossen werden kann, und erstarrt zu einem klangharten Körper.The observation has now been made that even small amounts of Chemicals are able to influence the meltability of borax in such a way that Have shaped pieces made from it. The choice of these additives is made taking into account the type of use of the fittings. An easier melting of the crystal water containing Borax can e.g. B. caused by the following additives: caustic soda, caustic potash, Borates such as metaborate, boric acid, phosphoric acid and their salts, carbonates, etc. These can be used individually or in groups. The one for melting The required additional amount can be varied within wide limits and is also based on it according to the intended use of the formed borate. If pouring into molds is longer Takes time, it is recommended to moisten the borax a little beforehand, to avoid losses of crystal water, which may result from evaporation, to replace again. Of course, it is also possible to use borax from others instead of borax boric acid-containing substances and to choose the additives so that the for the Use required conditions are obtained. Also borate-forming substances can be processed in the same way. Example r. Zoo g borax (powder or Semolina) are mixed with 40.00 boric acid powder and placed in a water or steam bath Stir heated. The mixture melts quickly and transforms below 60 ° C in a pourable mass that can be poured into any shape, and solidifies into a hard-sounding body.
Soll das Produkt weniger Borsäure enthalten, so kann man von Anfang an mit geringerem Borsäurezusatz arbeiten oder der gesamten Schmelze weitere Mengen Borax (ohne Borsäurezusatz) unter Erwärmen zu- "eben. Diese lösen sich leicht in der Schmelze, ohne daß eine L'berhitzung und Entwässerung des Borates stattfindet; .. , Beis.pi,e.l 2.If the product is to contain less boric acid, you can do it right from the start work on with a lower addition of boric acid or add more amounts to the entire melt Borax (without addition of boric acid) while heating "Just. Solve this easily in the melt without overheating and dehydration of the borate takes place; .., Beis.pi, e.l 2.
Zoo g Borax «-erden, mit 2o g Ätznatronpulver gemischt, wie oben behandelt. Man erhält ebenfalls leichtflüssige, zu festen Massen erstarrende Schmelzen.Zoo g borax "earths, mixed with 20 g caustic soda powder, as described above. Easily liquid melts which solidify to form solid masses are also obtained.
Beispiel 3. Example 3.
Zoo g Borax «-erden mit 4.o g Phosphorsalz (Na HN4 HPO, -- d. H= O) in gleicher Weise behandelt. Auch diese Mischung ergibt eine leichtflüssige, gut erstarrende Schmelze. Das vorliegende Verfahren gestattet auch die Formgebung der Borate oder boratbildenden Stoffe durch Pressen ohne Zusatz von Bindemitteln.Zoo g borax "earths treated with 4. g phosphorus salt (Na HN4 HPO, - i.e. H = O ) in the same way. This mixture also results in a light-flowing, well-solidifying melt. The present process also allows the borates or borate-forming substances to be shaped by pressing without the addition of binders.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEC33166D DE411579C (en) | 1923-02-13 | 1923-02-13 | Manufacture of shaped or pressed parts containing borate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEC33166D DE411579C (en) | 1923-02-13 | 1923-02-13 | Manufacture of shaped or pressed parts containing borate |
Publications (1)
Publication Number | Publication Date |
---|---|
DE411579C true DE411579C (en) | 1925-04-01 |
Family
ID=7020687
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEC33166D Expired DE411579C (en) | 1923-02-13 | 1923-02-13 | Manufacture of shaped or pressed parts containing borate |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE411579C (en) |
-
1923
- 1923-02-13 DE DEC33166D patent/DE411579C/en not_active Expired
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