DE670537C - Process for the production of iron-containing tanning agents - Google Patents

Process for the production of iron-containing tanning agents

Info

Publication number
DE670537C
DE670537C DEI52641D DEI0052641D DE670537C DE 670537 C DE670537 C DE 670537C DE I52641 D DEI52641 D DE I52641D DE I0052641 D DEI0052641 D DE I0052641D DE 670537 C DE670537 C DE 670537C
Authority
DE
Germany
Prior art keywords
iron
tanning
weight
production
tanning agents
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
DEI52641D
Other languages
German (de)
Inventor
Dr Hermann Loewe
Dr Herbert Muench
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to DEI52640D priority Critical patent/DE669566C/en
Priority to DEI52641D priority patent/DE670537C/en
Priority to GB23825/35A priority patent/GB462026A/en
Priority to US85908A priority patent/US2141276A/en
Priority to BE416251D priority patent/BE416251A/en
Application granted granted Critical
Publication of DE670537C publication Critical patent/DE670537C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C14—SKINS; HIDES; PELTS; LEATHER
    • C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
    • C14C3/00—Tanning; Compositions for tanning
    • C14C3/02—Chemical tanning
    • C—CHEMISTRY; METALLURGY
    • C14—SKINS; HIDES; PELTS; LEATHER
    • C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
    • C14C3/00—Tanning; Compositions for tanning
    • C14C3/02—Chemical tanning
    • C14C3/04—Mineral tanning
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S530/00—Chemistry: natural resins or derivatives; peptides or proteins; lignins or reaction products thereof
    • Y10S530/827—Proteins from mammals or birds
    • Y10S530/842—Skin; hair; nails; sebaceous glands; cerumen
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S530/00—Chemistry: natural resins or derivatives; peptides or proteins; lignins or reaction products thereof
    • Y10S530/859—Waste, waste material, refuse or sludge, e.g. effluents, fecal matter

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)

Description

Verfahren zur Herstellung eisenhaltiger Gerbrnittel In dem Patent 669 566 ist .ein Verfahren zur Herstellung wertvoller eisenhaltiger Gerbmittel beschrieben, darin bestehend, daß man Ferriverbindungen mit wasserlöslichen Eiweißstoffen bzw. wasserlöslichen Derivaten oder Abbauprodukten von Eiweißstoffen, die mit Hilfe nicht oxydierender, proteolytisch wirkender Mittel erhalten wurden, vereinigt.Process for making ferrous tannins In the patent 669 566 describes a process for the production of valuable iron-containing tanning agents. consisting of ferric compounds with water-soluble proteins or water-soluble derivatives or breakdown products of proteins that do not help with oxidizing, proteolytic agents were obtained, combined.

Es wurde nun gefunden, daß derartige wertvolle Eisengerbmittel auch erhalten werden können, wenn man in Abwesenheit von Ferrisalzen unter milden Bedingungen mit Hilfe oxydierend wirkender Mittel gewonnene wasserlösliche Abbauprodukte von Eiweißstoffen mit gerbend wirkenden Ferriverbindungen vereinigt, vorteilhaft nachdem das Eiweißabbauprodukt zur Trockne eingedampft wurde. Geeignete Oxydationsmittel sind z. B. Salpetersäure, nitros@e Gase, Wasserstoffsuperoxyd u. dgl. Diese Oxydationsmittel werden unter milden Bedingungen angewendet, so daß der Abbau der Eiweißstoffe nicht bis zu den kleinsten Spaltprodukten, wie Oxalsäure, Kohlensäure, Wasser u. dgl., sondern zu den zwischen den kleinsten Spaltprodukten und den Ausgangsstoffen liegenden Abbauprodukten führt. Als Ausgangsstoffe für die Eiweißabbauprodukte können die im Hauptpatent genannten Eiweißstoffe dienen. Als Ferriverhindungen kommen die wasserlöslichen, gerbeliden Ferrisalze in Frage.It has now been found that such valuable iron tanning agents too can be obtained when in the absence of ferric salts under mild conditions with the help of oxidizing agents obtained water-soluble degradation products of Proteins combined with tanning ferric compounds, advantageously after the protein degradation product was evaporated to dryness. Suitable oxidizing agents are z. B. nitric acid, nitrous gases, hydrogen peroxide and the like are used under mild conditions so that the breakdown of proteins does not occur down to the smallest fission products such as oxalic acid, carbonic acid, water and the like, but rather to those lying between the smallest fission products and the starting materials Degradation products. As starting materials for the protein degradation products, the Serve proteins mentioned in the main patent. The ferric compounds are the water-soluble, gerbelid ferris salts in question.

Die Gerbung kann man auch in beliebiger :Weise mit anderen Gerbverfahren kombinieren. Die Beständigkeit, Lagerfähigkeit und Versandfähigkeit der beschriebenen Gerbmittel ist im allgemeinen sehr gut. Die mit ihnen hergestellten Leder erfahren insbesondere beim Auswaschen keine unerwünschte Schwellung.The tanning can also be done in any: way with other tanning processes combine. The stability, storability and dispatchability of the described Tanning agent is generally very good. Experience the leathers made with them no unwanted swelling, especially when washing out.

Man bat bereits vorgeschlagen, eisenhaltige Gerbmittel durch Behandlung von Eiweißstoffen mit Salpetersäure, Stickoxyden oder stickstofffreien, oxydierend wirkenden Stoffen in Gegenwart von Eisensalzen herzustellen. Die so erhaltenen Produkte sind im Gegensatz zu den nach dem vorliegenden Verfahren erhältlichen unbeständig, schwer in konzentrierter Form zu erhalten und schwierig zu handhaben.One asked already suggested ferrous tanning agents by treatment of proteins with nitric acid, nitrogen oxides or nitrogen-free, oxidizing active substances in the presence of iron salts. The products thus obtained are in contrast to those obtainable by the present process inconsistent, difficult to obtain in concentrated form and difficult to use.

Beispiel 1 ioo Gewichtsteile Leimleder werden mit 50 Gewichtsteilen Salpetersäure vom spez. Gewicht 36'B6 und q.o Gewichtsteilen Wasser 3 Stunden lang auf 9o° erhitzt. Nach dem Abkühlen wird mit Natronlauge neutralisiert und eingedämpft. Der Eindampfrückstand wird mit 75 Gewichtsteilen Eisennitrat vermischt. Das erhaltene Produkt ist ein gutes Eiseng erbmittel. Beispiel 2 ioö Gewichtsteile Chromfalzspäne, 5oo Gewichtsteile Wasser und Zoo Gewichtsteile Salpetersäure vom sp.ez. Gewicht 36'B6 werden etwa 3 Stunden lang auf 9o° erwärmt. Nach dem Abkühlen setzt man dem Reaktions-. gemisch 5o Gewichtsteile wasserfreies Eisenchlorid zu und erhält so eine Lösung, die als Gerbmittel Verwendung finden kann.Example 1 100 parts by weight of glue leather are combined with 50 parts by weight Nitric acid from spec. Weight 36'B6 and q.o parts by weight of water for 3 hours heated to 90 °. After cooling, it is neutralized with sodium hydroxide solution and evaporated. The evaporation residue is mixed with 75 parts by weight of iron nitrate. The received The product is a good iron tanning agent. Example 2 100 parts by weight of chromium shavings, 500 parts by weight of water and zoo parts by weight of nitric acid from sp.ez. weight 36'B6 are heated to 90 ° for about 3 hours. After cooling down, you put the Reaction. mix 50 parts by weight of anhydrous ferric chloride and get it a solution that can be used as a tanning agent.

Will man Produkte von erhöhter Lagerfähigkeit und Beständigkeit herstellen, so- ist es zweckmäßig, vor dem Zusatz des Eisenchlorids zu neutralisieren, beispielsweise mit Soda, und gegebenenfalls einzudampfen.If you want to manufacture products with increased shelf life and durability, so it is advisable to neutralize before adding the iron chloride, for example with soda, and evaporate if necessary.

Claims (2)

PATENTANSPRÜC1iR: i. Abänderung des Verfahrens nach Patent 669 566, dadurch gekennzeichnet, :daß man in Abwesenheit von Ferrisalzen unter milden Bedingungen mit Hilfe oxydierend wirkender Mittel gewonnene wasserlösliche Abbauprodukte von Eiweißstoffen mit gerbend wirkenden Ferriverbindungen vereinigt. PATENT CLAIM: i. Modification of the procedure according to patent 669 566, characterized in that: in the absence of ferric salts under mild conditions with the help of oxidizing agents obtained water-soluble degradation products of Proteins combined with tanning ferric compounds. 2. Verfahren nach Anspruch i, dadurch gekennzeichnet, daß man die Eiw:eißabbauprodukte vor der Vereinigung mit der gerbend wirkenden Ferriverbindung trocknet.2. Procedure according to Claim i, characterized in that the egg: ice breakdown products are used before the union dries with the tanning iron compound.
DEI52641D 1935-06-26 1935-06-27 Process for the production of iron-containing tanning agents Expired DE670537C (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DEI52640D DE669566C (en) 1935-06-26 1935-06-27 Process for the production of iron-containing tanning agents
DEI52641D DE670537C (en) 1935-06-26 1935-06-27 Process for the production of iron-containing tanning agents
GB23825/35A GB462026A (en) 1935-06-26 1935-08-26 Improvements in the manufacture and production of tanning agents containing iron
US85908A US2141276A (en) 1935-06-26 1936-06-18 Tanning agents and process of producing the same
BE416251D BE416251A (en) 1935-06-26 1936-06-25 PROCESS FOR TANNING GREEN LEATHERS AND SKINS

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE416251X 1935-06-26
DE2141276X 1935-06-26
DEI52640D DE669566C (en) 1935-06-26 1935-06-27 Process for the production of iron-containing tanning agents
DEI52641D DE670537C (en) 1935-06-26 1935-06-27 Process for the production of iron-containing tanning agents
GB23825/35A GB462026A (en) 1935-06-26 1935-08-26 Improvements in the manufacture and production of tanning agents containing iron

Publications (1)

Publication Number Publication Date
DE670537C true DE670537C (en) 1939-01-20

Family

ID=60571006

Family Applications (2)

Application Number Title Priority Date Filing Date
DEI52641D Expired DE670537C (en) 1935-06-26 1935-06-27 Process for the production of iron-containing tanning agents
DEI52640D Expired DE669566C (en) 1935-06-26 1935-06-27 Process for the production of iron-containing tanning agents

Family Applications After (1)

Application Number Title Priority Date Filing Date
DEI52640D Expired DE669566C (en) 1935-06-26 1935-06-27 Process for the production of iron-containing tanning agents

Country Status (4)

Country Link
US (1) US2141276A (en)
BE (1) BE416251A (en)
DE (2) DE670537C (en)
GB (1) GB462026A (en)

Also Published As

Publication number Publication date
GB462026A (en) 1937-02-26
US2141276A (en) 1938-12-27
DE669566C (en) 1938-12-29
BE416251A (en) 1936-07-31

Similar Documents

Publication Publication Date Title
DE670537C (en) Process for the production of iron-containing tanning agents
DE663825C (en) Process for the production of iron-containing tanning agents
DE602273C (en) Process for tanning pickled hide skin with chromium salts
DE613068C (en) Process for the preparation of disulfides from mercaptobenzothiazoles
DE648368C (en) Process for the production of iron sulfate chloride containing water of crystallization
DE338056C (en) Process for the preparation of the nitric acid esters of ethylene glycol and its homologues
DE565237C (en) Process for the production of mixed fertilizers
DE605445C (en) Process for the production of oxydiphenylsulfonic acids
AT204054B (en) Process for the preparation of a fertilizer containing urea and ammonium sulphate
AT217636B (en) Process for the production of a readily water-soluble protein preparation for the diagnosis of carcinoma
AT210875B (en) Process for the preparation of halodiphenyl sulfones
DE522524C (en) Pest repellant
DE1225809B (en) Tanning process
DE687153C (en) Process for fixing tanning agents in leather
DE478272C (en) Process for the production of sulphonic acids
DE869486C (en) Process for the production of ferrocalcium citrate
DE499732C (en) Process for the production of 1,8-cineole (eucalyptol)
DE566781C (en) Process for the production of potassium nitrate
DE858286C (en) Process for the production of metal-containing tanning agents
DE500235C (en) Process for the production of sodium magnesium carbonate
DE527618C (en) Process for the production of heavy metal salts from sulphonic acids
DE421852C (en) Process for the production of a fertilizer containing urea
DE590051C (en) Manufacture of potash nitrate
DE532327C (en) Process for the production of an iron-containing tanning agent
AT67783B (en) Process for the production of water-soluble silver-protein compounds.