DE186764C - - Google Patents

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Publication number
DE186764C
DE186764C DENDAT186764D DE186764DA DE186764C DE 186764 C DE186764 C DE 186764C DE NDAT186764 D DENDAT186764 D DE NDAT186764D DE 186764D A DE186764D A DE 186764DA DE 186764 C DE186764 C DE 186764C
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DE
Germany
Prior art keywords
mucus
alkaline
depilatory
sulfur
bodies
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
DENDAT186764D
Other languages
German (de)
Publication date
Application granted granted Critical
Publication of DE186764C publication Critical patent/DE186764C/de
Expired legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05FORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F1/00Fertilisers made from animal corpses, or parts thereof
    • C05F1/007Fertilisers made from animal corpses, or parts thereof from derived products of animal origin or their wastes, e.g. leather, dairy products
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/20Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/141Feedstock
    • Y02P20/145Feedstock the feedstock being materials of biological origin

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Cosmetics (AREA)

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

PATENTSCHRIFTPATENT LETTERING

- M 186764 KLASSE 16. GRUPPE- M 186764 CLASS 16TH GROUP

BERNHARD SCHÜMANN in HAMBURG und CARL ELSCHNER in WILHELMSBURG.BERNHARD SCHÜMANN in HAMBURG and CARL ELSCHNER in WILHELMSBURG.

Patentiert im Deutschen Reiche vom 6. Mai 1905 ab.Patented in the German Empire on May 6, 1905.

Große Mengen albuminhaltiger Körper befinden sich in alkalischer Lösung in dem bei der Enthaarung tierischer Häute durch Schwefelalkali entstehenden Schleim. Manche Fabriken produzieren bis ioooo kg solchen Schleimes pro Tag, der io bis 33 Prozent feste Körper enthält.Large amounts of albumin-containing bodies are in alkaline solution in the mucus produced by depilation of animal skins by alkaline sulfur. Some Factories produce up to 10,000 kg of such slime per day, that is to 33 percent contains solid bodies.

Diese stickstoffhaltigen Substanzen fanden bisher Anwendung zum Düngen, doch erforderte die Anwesenheit von für die Pflanzen giftigem Schwefelalkali ein längeres Aussetzen an der Luft und Umstechen mit Erde, um ein Oxydieren der Sulfite hervorzubringen. Durch das nachstehend beschriebene Verfahren wird dieser Enthaarungsschleim in einen hochprozentigen Dünger mit 6 bis 11 Prozent Stickstoff übergeführt, indemThese nitrogenous substances have so far been used for fertilization, but required prolonged exposure to the presence of alkaline sulfur, which is toxic to the plants in the air and piercing with earth to cause the sulphites to oxidize. The procedure described below turns this depilatory mucus into a high percentage Fertilizer with 6 to 11 percent nitrogen carried over by

i. die schädlichen Sulfite vernichtet werden undi. the harmful sulphites are destroyed and

2. das Wasser entfernt wird.2. the water is removed.

Leitet man nämlich schweflige Säure in den Enthaarungsschleim ein, so werden beim Eintritt der sauren Reaktion die Eiweißkörper, die bisher durch die alkalische Beschaffenheit der Substanz gelöst waren, in unlöslichem Zustand in Form einer schwammartigen Masse abgeschieden, und das Wasser trennt sich schnell ab, so daß durch Pressen leicht ein nur wenig Prozent Wasser enthaltendes Präparat erzielt werden kann. Ferner werden die Schwefelalkalien derart unschädlich gemacht, daß dabei kein Schwefelwasserstoff entsteht, durch dessen Gegenwart das Verfahren unbrauchbar oder seine Ausführung erschwert werden würde. Die entstehende schwach schwefligsaure Flüssigkeit, die Alkalisalze enthält, kann abgelassen werden, während die abgepreßten Eiweißkörper getrocknet werden.If you introduce sulphurous acid into the depilatory mucus, the Entry of the acidic reaction the protein bodies, which hitherto by the alkaline nature the substance were dissolved, deposited in an insoluble state in the form of a spongy mass, and the water separates quickly, so that by pressing it easily contains only a few percent water Preparation can be achieved. Furthermore, the alkaline sulfur becomes harmless in this way made that no hydrogen sulfide is formed, the presence of which causes the Procedure would become unusable or it would be difficult to carry out. The emerging weakly sulphurous liquid containing alkali salts can be drained while the pressed protein bodies are dried.

3535

Claims (1)

Patent-Anspruch :Patent claim: 4040 Verfahren zur Gewinnung eiweißartiger, zur Düngung geeigneter Körper aus dem Enthaarungsschleim der Gerbereien nach dem Schwefelalkaliverfahren, dadurch gekennzeichnet, daß in den Schleim schweflige Säure eingeleitet wird, wodurch unter Vermeidung der Entwickelung von Schwefelwasserstoff die Eiweißsubstanzen ausgefällt werden.Process for obtaining protein-like bodies suitable for fertilization from the Depilatory mucus from tanneries using the sulfur-alkaline process, characterized in that that sulphurous acid is introduced into the mucus, thereby avoiding the development of hydrogen sulphide the protein substances are precipitated.
DENDAT186764D Expired DE186764C (en)

Publications (1)

Publication Number Publication Date
DE186764C true DE186764C (en) 1900-01-01

Family

ID=450505

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT186764D Expired DE186764C (en)

Country Status (1)

Country Link
DE (1) DE186764C (en)

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