DE151019C - - Google Patents
Info
- Publication number
- DE151019C DE151019C DENDAT151019D DE151019DA DE151019C DE 151019 C DE151019 C DE 151019C DE NDAT151019 D DENDAT151019 D DE NDAT151019D DE 151019D A DE151019D A DE 151019DA DE 151019 C DE151019 C DE 151019C
- Authority
- DE
- Germany
- Prior art keywords
- carbonic acid
- resin
- solution
- steam
- alkaline substances
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 claims description 8
- 239000011347 resin Substances 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 7
- 239000003513 alkali Substances 0.000 claims description 3
- 238000004042 decolorization Methods 0.000 claims description 2
- 239000000344 soap Substances 0.000 claims description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 claims 1
- 230000004048 modification Effects 0.000 claims 1
- 238000012986 modification Methods 0.000 claims 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 239000000126 substance Substances 0.000 description 5
- 125000005588 carbonic acid salt group Chemical group 0.000 description 3
- 239000000975 dye Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010411 cooking Methods 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N 1,4a-dimethyl-7-propan-2-yl-2,3,4,4b,5,6,10,10a-octahydrophenanthrene-1-carboxylic acid Chemical compound C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09F—NATURAL RESINS; FRENCH POLISH; DRYING-OILS; OIL DRYING AGENTS, i.e. SICCATIVES; TURPENTINE
- C09F1/00—Obtaining purification, or chemical modification of natural resins, e.g. oleo-resins
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Heat Sensitive Colour Forming Recording (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
- Paper (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT. Y%PATENT OFFICE. Y%
Durch Patent 142459 ist ein Verfahren geschützt, welches das Entfärben von Harz durch Behandlung mit alkalischen Substanzen event, unter Zuhilfenahme von Druck betrifft. Zur Vermeidung eines eigentlichen Kochprozesses, der eine weitergehende Verseifung des Harzes zur Folge haben würde, läßt man bei dem genannten Verfahren zur Masse Wasser oder Dampf zutreten, wobei letzterer auch zur Schaffung einer indifferenten Atmosphäre dient.A process is protected by patent 142459, which is the decolorization of resin by treatment with alkaline substances, with the help of pressure. To avoid an actual cooking process that requires further saponification of the resin would result, one leaves to the mass in the process mentioned Water or steam enter, the latter also creating an indifferent atmosphere serves.
,Es wurde nun weiter gefunden, daß an Stelle des Wassers oder Dampfes auch mit Vorteil Kohlensäure verwendet werden kann.It has now been found that instead of water or steam, with Advantage carbonic acid can be used.
Die Kohlensäure übt im wesentlichen die-■ selbe Wirkung aus wie der Dampf, aber insbesondere wird auch eine Rückzersetzung etwa gebildeter Harzseife hervorgerufen (vergl. Dingler, Polyt. Journal, Bd. 226,The carbonic acid has essentially the same effect as the steam, but in particular, any resin soap that has formed is also caused to decompose back (cf. Dingler, Polyt. Journal, Vol. 226,
S. 79).P. 79).
Dies erfolgt in der Weise, daß das harzsaure Alkali in Harzsäure und kohlensaures Alkali zerlegt wird, welch letzteres in Lösung geht und die Farbstoffe des Harzes aufnimmt.This is done in such a way that the resinous alkali is transformed into resin acid and carbonic acid Alkali is decomposed, which the latter goes into solution and absorbs the dyes of the resin.
Es ist zu bemerken, daß bei dem Verfahren des Haupt-Patentes die alkalischen Substanzen anfänglich nicht in Lösung vorhanden zu sein brauchen, obwohl sie in solcher vorhanden sein können. Durch das Zuströmenlassen von Wasser oder Dampf zur Vermeidung eines Kochprozesses gehen diese Substanzen mit den Farbstoffen in Lösung.It should be noted that in the process of the main patent, the alkaline substances initially do not need to be present in solution, although they are present in such could be. By letting water or steam flow in to avoid a boiling process, these substances go with the dyes in solution.
Bei der Verwendung der Kohlensäure zur Vermeidung des Kochprozesses ,und zur Schaffung der indifferenten Atmosphäre muß natürlich eine Lösung der alkalischen Substanzen zur Aufnahme der Farbstoffe angewendet werden oder die Möglichkeit zur Bildung einer solchen gegeben sein.When using the carbon dioxide to avoid the cooking process, and to Creation of the indifferent atmosphere must of course be a solution of the alkaline substances can be used to absorb the dyes or there may be the possibility of forming such.
Es ist ferner zu beachten, daß natürlich bei dem Verfahren unter Verwendung von Kohlensäure solche alkalisch wirkenden Substanzen , die unlösliche" kohlensaure Salze bilden, nicht verwendet werden können, weil sie nicht zur Wirkung kommen , würden. Ebenso werden die Ätzalkalien in kohlensaure Salze umgewandelt und wirken als solche; sie können daher von Anfang an als kohlensaure Salze zur Verwendung kommen.It should also be noted that, of course, in the method using Carbonic acid those alkaline substances, the insoluble "carbonic acid salts cannot be used because they would not have an effect. Likewise, the caustic alkalis are converted into carbonic acid salts and act as such; they can therefore be used as carbonic acid salts from the outset.
Claims (1)
Publications (1)
Publication Number | Publication Date |
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DE151019C true DE151019C (en) |
Family
ID=417873
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT151019D Active DE151019C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE151019C (en) |
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0
- DE DENDAT151019D patent/DE151019C/de active Active
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