DE319112C - Method for easing the weight of silk waste u. like - Google Patents

Method for easing the weight of silk waste u. like

Info

Publication number
DE319112C
DE319112C DE1914319112D DE319112DD DE319112C DE 319112 C DE319112 C DE 319112C DE 1914319112 D DE1914319112 D DE 1914319112D DE 319112D D DE319112D D DE 319112DD DE 319112 C DE319112 C DE 319112C
Authority
DE
Germany
Prior art keywords
silk
weight
silk waste
easing
waste
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
Application number
DE1914319112D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of DE319112C publication Critical patent/DE319112C/en
Expired legal-status Critical Current

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Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
    • D06M13/184Carboxylic acids; Anhydrides, halides or salts thereof
    • D06M13/192Polycarboxylic acids; Anhydrides, halides or salts thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)

Description

Seidenabfälle und Seidenhadern finden seit langem Verwendung in der Papierfabrikation, als Isoliermaterial usw. Sie sind auch in neuerer Zeit für verschiedene andere Zwecke in Vorschlag gebracht worden z. B. als Zusatz zur. Kunstseide beim Verweben. Für diesen und manchen anderen Verwendungszweck stören aber die fest auf der Faser haftenden metallischen Beschwerungsmittel, in der Regel Zinn, die auch bei dem üblichen Waschprozeß nicht entfernt werden. Bei den älteren Anwendungsformen der Seidenabfälle waren diese an sich wertvollen Stoffe zum mindesten nicht nützlich und gingen verloren.Silk waste and silk rags have long been used in the Paper manufacture, as an insulating material, etc. They are also used for various in recent times other purposes have been suggested e.g. B. as an addition to. Artificial silk at Interweave. For this and some other uses, however, they firmly interfere the fiber-adhering metallic weighting agents, usually tin, which too cannot be removed in the usual washing process. In the older forms of application In the silk waste these substances, which are valuable in themselves, were at least not useful and got lost.

Gegenstand der vorliegenden Erfindung ist nun ein Verfahren, die Seidenabfälle von dem ihre Wiederverwendung störenden Beschwerungsmittel auf eine einfache und das Material nicht verteuernde Weise unter leichter Wiedergewinnung der angewandten Stoffe zu befreien. Zu diesem Zweck werden die Seidenabfälle nach einer Waschung der Einwirkung einer Lösung von saurem Ammoniumoxalat ausgesetzt; dieses löst alles Zinn sowie auch die vorhandene Phosphorsäure von der Faser ab. Aus der entstehenden Lösung wird zunächst das Zinn mit einem Überschuß von Ammoniak ausgefällt. Die Phosphorsäure kann man mit Hilfe der bekannten Reagenzien ebenfalls ausfällen, man kann sie auch in dem Bade lassen. Die nunmehr im wesentlichen aus neutralem Ammoniumoxalat und Ammoniak bestehende Flüssigkeit wird der Destillation unterworfen, wobei nicht nur das vorhandene freie Ammoniak übergeht, sondern auch infolge der starken Dissoziation des Ammoniumoxalats ein Teil des gebundenen Ammoniaks. Man setzt die Destillation vorteilhaft so lange fort, bis in dem Destillationsgefäß eine Lösung von saurem Ammoniumoxalat vorhanden ist, die nun zur Behandlung neuer Mengen Seidenabfälle dient.The present invention now relates to a method, the silk waste from the weighting agent that interferes with their reuse to a simple and in a manner that does not increase the cost of the material, while easily recovering those used Free substances. For this purpose the silk waste is used after washing exposed to the action of a solution of acidic ammonium oxalate; this solves everything Tin as well as the existing phosphoric acid from the fiber. From the emerging Solution, the tin is first precipitated with an excess of ammonia. The phosphoric acid you can also precipitate with the help of the known reagents, you can also leave in the bath. The now essentially made up of neutral ammonium oxalate and Ammonia existing liquid is subjected to distillation, not only the existing free ammonia passes over, but also as a result of the strong dissociation of the ammonium oxalate part of the bound ammonia. One continues the distillation advantageous so long until a solution of acidic in the distillation vessel Ammonium oxalate is present, which is now used to treat new amounts of silk waste serves.

Es ist zwar schon bekannt geworden, daß man zum Zwecke der analytischen Bestimmung die Beschwerungsmittel mit Hilfe von Oxalsäure oder saurem Ammoniumoxalat entfernen kann, jedoch ist die Tatsache neu und überraschend, daß die Behandlung der Seide mit Ammonoxalat eine so' wesentliche Veredelung der Seidenabfälle herbeiführt, und daß das Verfahren unter Wiedergewinnung sowohl der wertvollen Beschwerungsmittel wie auch der für die Entschwerung erforderlichen Stoffe durchzuführen ist.It has already become known that for the purpose of analytical Determination of weighting agents with the help of oxalic acid or acidic ammonium oxalate can remove, however, the fact is new and surprising that the treatment the silk with ammonoxalate brings about such an essential refinement of the silk waste, and that the process with recovery of both valuable weighting agents as well as the materials required for the removal of weight must be carried out.

Die auf der Faser zurückbleibende Kieselsäure beeinträchtigt die Brauchbarkeit der entschwerten Seide nicht; will man sie entfernen, =o gelingt dies in bekannter Weise im Sodabade.The silica remaining on the fiber impairs usability of the devalued silk; if one wants to remove them, = o this succeeds in a familiar Way in the soda bath.

Das Verfahren ist nicht beschränkt auf die Behandlung zinnbeschwerter Seide. - Auch die neuerdings vorgeschlagenen anderen metallischen Beschwerungsmittel - Titan, Zirkon, Cererden - können in gleicher Weise wiedergewonnen werden.The procedure is not limited to the treatment of pewter weights Silk. - Also the recently proposed other metallic weighting agents - Titanium, zircon, cerium earth - can be recovered in the same way.

Claims (1)

PATENTANSPRUCH: Verfahren zum Entschweren von Seidenabfällen u. dgl., dadurch gekennzeichnet, daß das als Lösungsmittel angewendete primäre Ammonoxalat wie auch das zur Fällung benutzte Ammoniak aus der Mutterlauge durch Destillation wiedergewonnen werden und beide im Kreislauf zur Anwendung gelangen. PATENT CLAIM: Process for reducing the weight of silk waste and the like, characterized in that the primary ammonoxalate used as solvent and the ammonia used for precipitation are recovered from the mother liquor by distillation and both are used in the circuit.
DE1914319112D 1914-03-31 1914-03-31 Method for easing the weight of silk waste u. like Expired DE319112C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE319112T 1914-03-31

Publications (1)

Publication Number Publication Date
DE319112C true DE319112C (en) 1920-02-18

Family

ID=6151538

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1914319112D Expired DE319112C (en) 1914-03-31 1914-03-31 Method for easing the weight of silk waste u. like

Country Status (1)

Country Link
DE (1) DE319112C (en)

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