DE307663C - - Google Patents
Info
- Publication number
- DE307663C DE307663C DENDAT307663D DE307663DA DE307663C DE 307663 C DE307663 C DE 307663C DE NDAT307663 D DENDAT307663 D DE NDAT307663D DE 307663D A DE307663D A DE 307663DA DE 307663 C DE307663 C DE 307663C
- Authority
- DE
- Germany
- Prior art keywords
- waste liquor
- alkalis
- substances
- unthickened
- lignin
- 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
- 239000002699 waste material Substances 0.000 claims description 11
- 239000000126 substance Substances 0.000 claims description 8
- 229920005610 lignin Polymers 0.000 claims description 6
- LSNNMFCWUKXFEE-UHFFFAOYSA-L Sulphite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 claims description 5
- 238000004513 sizing Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims 1
- 239000002198 insoluble material Substances 0.000 claims 1
- 150000003460 sulfonic acids Chemical class 0.000 claims 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 5
- 239000002253 acid Substances 0.000 description 3
- 150000007513 acids Chemical class 0.000 description 3
- 150000008043 acidic salts Chemical class 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000001105 regulatory Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N tin hydride Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/23—Lignins
Description
AUSGEGEBEN AM 2. JUL11919ISSUED ON JUL 2, 1919
KLASSE 55c GRUPPECLASS 55c GROUP
in BERLIN.in Berlin.
Zusatz zum Patent 307087.Addition to patent 307087.
Es ist bekannt, daß durch Erhitzen der Ligninsulfonsäuren aus den Ablaugen des Sulfitzellstoffs mit Alkalien unter Abspaltung des Schwefels Stoffe, »sogenannte Lignine«, entstehen, die in Alkalien löslich sind und durch Säuren, saure Salze und gewisse Metallsalze aus ihren Lösungen ausgefällt werden können. Bisher haben diese in ungeheuren Mengen zugänglichen, aber dennoch wenig erforschten Stoffe (siehe Schwalbe, Chemie der Zellulose, Seite 422)'keine praktische Verwendung gefunden. Hierzu mag die nicht immer befriedigend verlaufende Umsetzung zwischen der Sulfitablauge und den Alkalien beigetragen haben.It is known that by heating the lignosulfonic acids from the waste liquors of the Sulphite pulp with alkalis with splitting off of the sulfur substances, "so-called lignins", that are soluble in alkalis and by acids, acidic salts and certain metal salts can be precipitated from their solutions. So far, these have been tremendous Quantities of accessible but little researched substances (see Schwalbe, Chemie der Cellulose, page 422) 'found no practical use. She doesn't like this always satisfactory reaction between the sulphite waste liquor and the alkalis have contributed.
Es hat sich nun bei Ausübung des Verfahrens nach dem Hauptpatent 307087 herausgestellt, daß die Umsetzung zwischen Alkalien und den Substanzen der Sulfitzellstoffablauge ganz über Erwarten gut verlief und daher auch eine sehr gute Ausbeute ergab, wenn man die uneingedickte oder eingedickte Ablauge in die konzentrierte siedende oder fast siedende Lösung der Alkalien einfließenIt has now turned out when exercising the method according to the main patent 307087, that the reaction between alkalis and the substances of the sulphite pulp waste liquor went well beyond expectations and therefore also resulted in a very good yield if one used the unthickened or thickened one Pour the waste liquor into the concentrated boiling or almost boiling solution of the alkalis
as läßt. Unter Wärmeentwicklung findet die Umsetzung statt, die immer mäßiger wird, je mehr Ablauge man schon zugesetzt hat.as lets. The Implementation takes place, which becomes more and more moderate the more waste liquor has already been added.
Verwendet man uneingedickfe Lauge, so muß die Erwärmung und das Einfließen der Lauge so geregelt werden, daß das überschüssige Wasser zu verdampfen Zeit hat. Der oben beschriebene Arbeitsgang führt, wie erwähnt, viel rascher, sicherer und 'bequemer zinn Ziel, als wenn umgekehrt in die uneingedickte oder eingedickte Lauge Ätzalkalien oder deren konzentrierte Lösungen eingeführt werden. Man braucht 10 bis 20 Prozent, unter Umständen, je nach dem Säuregehalt der Ablauge, auch etwas /mehr Ätznatron, berechnet auf die Trockensubstanz der Ablauge. Aus der mit Wasser gelösten Schmelze lassen sich die Ligninstoffe durch Säuren oder saure Salze in reinem Zustand abscheiden.If you use unthickened lye, you must the heating and the flow of the liquor can be regulated so that the excess Water has time to evaporate. As mentioned, the process described above leads to Much quicker, safer, and 'more convenient tin target than if reversed in the unthickened or thickened caustic alkalis or their concentrated solutions are introduced. You need 10 to 20 percent, under certain circumstances, depending on the acidity of the waste liquor, also some / more caustic soda, calculated on the dry substance of the waste liquor. From the With the melt dissolved in water, the lignin substances can be replaced by acids or acidic salts separate in the pure state.
Die evtl. auf diesem Wege . gewonnenen Ligninstoffe können durch Lösen in Alkalien oder Ammoniak für eine Leimung auch von besseren Papieren nutzbar gemacht werden.The possibly in this way. Lignin substances obtained can be obtained by dissolving in alkalis or ammonia can also be used for sizing better papers.
Gerade so wie die Ablauge des Sulfitzellstoffs lassen sich auch die vorher vergorenen und entgeisteten Ablaugen zu dieser Umsetzung verwenden. Die Ligninstoffe sollen zur Papierleimung und zur Herstellung von zur Papierleimung geeigneten Emulsionen benutzt werden. Just like the waste liquor from the sulphite pulp, the previously fermented ones can also be fermented and use de-spiritized waste liquor for this implementation. The lignin substances are intended to be used for paper sizing and for the production of emulsions suitable for paper sizing.
(2. Auflage, ausgegeben am 5. Dezember 1919.) (2nd edition, issued December 5 , 1919.)
Claims (1)
Publications (1)
Publication Number | Publication Date |
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DE307663C true DE307663C (en) |
Family
ID=560983
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DENDAT307663D Active DE307663C (en) |
Country Status (1)
Country | Link |
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DE (1) | DE307663C (en) |
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0
- DE DENDAT307663D patent/DE307663C/de active Active
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