DE859460C - Process for the production of condensation products - Google Patents

Process for the production of condensation products

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Publication number
DE859460C
DE859460C DED4409D DED0004409D DE859460C DE 859460 C DE859460 C DE 859460C DE D4409 D DED4409 D DE D4409D DE D0004409 D DED0004409 D DE D0004409D DE 859460 C DE859460 C DE 859460C
Authority
DE
Germany
Prior art keywords
condensation products
sulfamides
production
water
parts
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
DED4409D
Other languages
German (de)
Inventor
Erik Dr Schirm
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.)
Deutsche Hydrierwerke AG
Original Assignee
Deutsche Hydrierwerke 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 Deutsche Hydrierwerke AG filed Critical Deutsche Hydrierwerke AG
Priority to DED4409D priority Critical patent/DE859460C/en
Priority to NL101403A priority patent/NL54943C/xx
Application granted granted Critical
Publication of DE859460C publication Critical patent/DE859460C/en
Expired legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C14SKINS; HIDES; PELTS; LEATHER
    • C14CCHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
    • C14C3/00Tanning; Compositions for tanning
    • C14C3/02Chemical tanning
    • C14C3/08Chemical tanning by organic agents
    • C14C3/24Chemical tanning by organic agents using lignin derivatives, e.g. sulfate liquor
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G12/00Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
    • C08G12/02Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes
    • C08G12/04Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds
    • C08G12/24Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds with sulfonic acid amides

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Treatment And Processing Of Natural Fur Or Leather (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)

Description

Verfahren zur Herstellung von Kondensationsprodukten Es wurde gefunden, daß man zu technisch wertvollen Kondensationsprodukten gelangt, wenn man Sulfitablauge mit aromatischen Sulfamiden und Aldehyden, insbesondere Formaldehyd oder Formaldehyd abgebenden Stoffen kondensiert. Durch dieses Verfahren werden die gerberischen Eigenschaften der Sulfitablauge so weitgehend verbessert, daß die Kondensationsprodukte wertvolle Austauschgerbstoffe bilden, während die Ablauge selbst bekanntlich nur als Hilfsgerbstoff angesprochen werden kann.Process for the production of condensation products It has been found that one arrives at technically valuable condensation products if one uses sulphite waste liquor with aromatic sulfamides and aldehydes, especially formaldehyde or formaldehyde emitting substances condensed. Through this process, the tannic characteristics the sulphite liquor is so largely improved that the condensation products are valuable Substitute tanning agents form, while the waste liquor itself is known only as an auxiliary tanning agent can be addressed.

Unter Sulfitablauge sind die beim Aufschluß des Holzes u. dgl. nach dem Sulfitverfahren anfallende Ablauge bzw. deren durch Eindampfen gewonnene Konzentrate oder Trockensubstanzen, welche zweckmäßig in üblicher Weise enteisent und entkälkt sind, zu verstehen. Aromatische Sulfamide bzw. deren Kernsubstitutionsprodukte, die für das Verfahren als Ausgangsstoffe in Betracht kommen, sind beispielsweise Benzolsulfamid, 4-Toluolsulfamid, 4.-Chlorbenzolsulfamid, Benzol-i, 3-disulfamid, Diphenyl-4, 4'-disulfamid, Naphthalin-i, 3, 5-trisulfamid, Carbazoltetrasulfamid, Benzoesäure-3-sulfamid,2-Oxybenzoesäure-5-sulfamid, Benzoesäure-3, 5-disulfamid, Phenol-2, q., 6-trisulfamid, i-Oxynaphthalin-8-sulfamid, i-Oxynaphthalin-8-sulfamid-3-sulfonsäure usw. Ferner sind für das vorliegende Verfahren auch geeignet die aus den gemäß Patent 757 503 erhältlichen harzartigen Sulfochloriden durch Einwirkung von Ammoniak entstehenden Sulfamide u. dgl. Die Kohlenwasserstoffreste der Sulfamide können ganz allgemein Substituenten, wie Methyl-, Äthyl-, Hydroxylgruppen, Halogen und dergleichen, oder auch Heteroatome und Heteroatomgruppen, z. B. Äther-, Sulfon-, Ester-, Sulfonamid-, Carbonamidgruppen usw., enthalten.Sulphite waste liquor is to be understood as meaning the waste liquor resulting from the digestion of wood and the like after the sulphite process or concentrates or dry substances obtained by evaporation, which are expediently de-ironed and limed in the usual way. Aromatic sulfamides or their core substitution products which can be used as starting materials for the process are, for example, benzenesulfamide, 4-toluenesulfamide, 4-chlorobenzenesulfamide, benzene-i, 3-disulfamide, diphenyl-4, 4'-disulfamide, naphthalene-i , 3, 5-trisulfamide, carbazole tetrasulfamide, benzoic acid-3-sulfamide, 2-oxybenzoic acid-5-sulfamide, benzoic acid-3, 5-disulfamide, phenol-2, q., 6-trisulfamide, i-oxynaphthalene-8-sulfamide, i-Oxynaphthalene-8-sulfamide-3-sulfonic acid, etc. Furthermore, the sulfamides formed by the action of ammonia from the resinous sulfochlorides obtainable according to patent 757 503 and the like are also suitable for the present process. such as methyl, ethyl, hydroxyl groups, halogen and the like, or heteroatoms and heteroatom groups, e.g. B. ether, sulfone, ester, sulfonamide, carbonamide groups, etc. contain.

Als Aldehydkomponenten kommen bei diesem Verfahren hauptsächlich Formaldehyd, Acetaldehyd, Glyoxal, Acrolein, Crotonaldehyd, Furfurol usw. in Betracht oder entsprechende aldehy dabgebende Verbindungen, wie Paraformaldehy d, Trioxymethylen, Formaldehydbisulfit, Methylal, Hexamethvientetramin usw.The main aldehyde components used in this process are formaldehyde, Acetaldehyde, glyoxal, acrolein, crotonaldehyde, furfural etc. are considered or equivalent aldehyde-releasing compounds, such as paraformaldehyde, trioxymethylene, formaldehyde bisulfite, Methylal, hexamethvientetramine, etc.

Man kann.das Verfahren auch in der Weise durchführen, daß man zunächst aus den Sulfamiden und den Aldehyden Vorkondensationsprodukte bildet und diese dann auf die Sulfitablauge zur Einwirkung bringt. Als bekannte Kondensationsprodukte dieser Art sind die N-Methylolverbindungen der Sulfamide und deren Halogenwasserstoffsäureester, also die N-Halogenmethylverbindungen der Sulfamide, welche in bekannter Weise durch Einwirkung der Aldehyde auf die Sulfamide, gegebenenfalls unter Anwendung entsprechender Mengen Salzsäure, erhältlich sind.The procedure can also be carried out in such a way that, first of all, Forms precondensation products from the sulfamides and the aldehydes and then these brings to action on the sulphite liquor. As known condensation products of this type are the N-methylol compounds of sulfamides and their hydrohalic acid esters, So the N-halomethyl compounds of the sulfamides, which in a known manner by Effect of the aldehydes on the sulfamides, if necessary with the application of the appropriate Quantities of hydrochloric acid, are available.

Die Umsetzung zwischen den Ausgangsmaterialien und der Sulfitablauge erfolgt in wäßrigem Medium unter Erhitzen auf Temperaturen von etwa ioo'. Die Umsetzung ist vollendet, wenn das Kondensationsprodukt klar wasserlöslich ist. Beispiel i 6.1o Gewichtsteile einer enteisenten und entkälkten, bis zur pulvrigen Beschaffenheit eingedampften Sulfitablauge von 93,6 °;'o Trockengehalt werden mit 36o Raumteilen Wasser bis zur Bildung eines homogenen Sirups verrührt. Nunmehr werden 25o Gewichtsteile N-Methylol-p-toluolsulfamid eingetragen, und die Mischung wird, nachdem sie durch Rühren homogen geworden ist, auf go' erwärmt und bei dieser Temperatur gerührt, bis eine Probe in viel kaltem Wasser klar löslich ist. Das Produkt ist jetzt nach Verdünnung mit Wasser und Einstellung auf den geeigneten pH-Wert zum Gerben verwendbar. Beispiel 2 In die wie in Beispiel i hergestellte Sirupöse Sulfitablauge werden 236 Gewichtsteile eines feingepulverten technischen Gemisches von Benzol-i, 3- und -i, .1-disulfamid, wie es durch energische Sulfonierung von Benzol mit überschüssiger Chlorsulfonsäure und Umsetzung des isolierten Gemisches von Benzoli, 3- und -i, .1-disulfochlorid mit Ammoniak erhalten wird, eingetragen und gut verrührt. Hierauf werden innerhalb -: Stunden 185 Gewichtsteile einer 4o°/oigen wäßrigenFormaldehydlösung bei 2o bis 25' eingerührt, und es wird das Rühren bei Raumtemperatur noch etwa 5 Stunden fortgesetzt. Nunmehr wird auf 9o bis iooo erwärmt und diese Temperatur etwa Stunden aufrechterhalten, worauf eine Probe in Wasser klar löslich sein soll. Ist dieses derFall, so wird die Reaktionsmischung bei Wasserbadtemperatur unter vermindertem Druck zur Trockne eingedampft. Der in einer Ausbeute von 888 Gewichtsteilen erhaltene Rückstand läßt sich leicht zerreiben und bildet dann ein bräunlichgraues, leicht in Wasser lösliches Pulver. Das Erzeugnis ist ein vorzüglicher Austauschgerbstoff.The reaction between the starting materials and the sulphite waste liquor takes place in an aqueous medium with heating to temperatures of about 100 '. The reaction is complete when the condensation product is clearly soluble in water. EXAMPLE 6.1o parts by weight of a de-ironed and decalcified sulphite waste liquor with a dry content of 93.6 °, which has been evaporated to a powdery consistency, is stirred with 36o parts by volume of water until a homogeneous syrup is formed. Now 250 parts by weight of N-methylol-p-toluenesulfamide are added and the mixture, after it has become homogeneous by stirring, is warmed to go 'and stirred at this temperature until a sample is clearly soluble in a lot of cold water. The product can now be used for tanning after it has been diluted with water and adjusted to the appropriate pH value. Example 2 In the syrupy sulphite liquor prepared as in Example i, 236 parts by weight of a finely powdered technical mixture of benzene-i, 3- and -i, .1-disulphamide, as is achieved by vigorous sulphonation of benzene with excess chlorosulphonic acid and reaction of the isolated mixture of Benzoli, 3- and -i, .1-disulfochloride is obtained with ammonia, entered and stirred well. 185 parts by weight of a 40% aqueous formaldehyde solution are then stirred in at 20 to 25 hours within -: hours, and stirring is continued for about 5 hours at room temperature. Now it is heated to 90 to 10000 and this temperature is maintained for about hours, after which a sample should be clearly soluble in water. If this is the case, the reaction mixture is evaporated to dryness at water bath temperature under reduced pressure. The residue obtained in a yield of 888 parts by weight can be easily triturated and then forms a brownish-gray powder which is readily soluble in water. The product is an excellent replacement tanning agent.

In vorstehendem Beispiel kann *das Benzoldisulfamid durch 25o bis 3oo Gewichtsteile Naphthalin-I, 3, 5- oder -i, 3, 6-trisulfamid oder die gleiche Menge eines technischen Gemisches isomerer Naphthalintrisulfamide ersetzt werden. Bei gleicher Arbeitsweise erhält man so ein dem vorbeschriebenen ähnliches Erzeugnis. Beispiel 3 Man ersetzt in Beispiel e das Benzoldisulfamid durch 266 Gewichtsteile eines Sulfamids mit einem Stickstoffgehalt von io,5 °/o, das aus einem gemäß Patent 757 5o3 aus Naphthalin erhaltenen harzartigen Sulfochlorid durch Einwirkung von konzentriertem Ammoniakwasser hergestellt wurde. Die Arbeitsweise ist im übrigen wie in Beispiel 2. Auch hier wird ein pulverförmiger, leicht wasserlöslicher Gerbstoff erhalten.In the example above, * the benzene disulfamide can be replaced by 25o to 300 parts by weight of naphthalene-1, 3, 5- or -i, 3, 6-trisulfamide or the same Amount of a technical mixture of isomeric naphthalene trisulfamides to be replaced. With the same method of operation, a product similar to the one described above is obtained. Example 3 In example e, the benzene disulfamide is replaced by 266 parts by weight of a sulfamide with a nitrogen content of 10.5%, which is obtained from a patent 757 5o3 resinous sulfochloride obtained from naphthalene by the action of concentrated ammonia water. The way it works is by the way as in Example 2. Here, too, a powdery, easily water-soluble tanning agent is used obtain.

Claims (2)

PATENTANSPRÜCHE: i. Verfahren zur Herstellung von Kondensationsprodukten, dadurch gekennzeichnet, daß man Sulfitablauge in Gegenwart von Aldehyden oder aldehydabgebenden Substanzen mit aromatischen Sulfamiden kondensiert. PATENT CLAIMS: i. Process for the production of condensation products, characterized in that sulphite waste liquor in the presence of aldehydes or aldehyde donors Substances condensed with aromatic sulfamides. 2. Verfahren gemäß Anspruch i, dadurch gekennzeichnet, daß man an Stelle von aromatischen Sulfamiden und Aldehyden entsprechende N-Methylolv erbindungen der aromatischen Sulfamide oder deren Halogenwasserstoffsäureester verwendet.2. The method according to claim i, characterized in that instead of aromatic sulfamides and aldehydes corresponding N-methylol compounds of the aromatic sulfamides or their hydrohalic acid esters used.
DED4409D 1940-07-09 1940-07-09 Process for the production of condensation products Expired DE859460C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DED4409D DE859460C (en) 1940-07-09 1940-07-09 Process for the production of condensation products
NL101403A NL54943C (en) 1940-07-09 1941-05-20

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED4409D DE859460C (en) 1940-07-09 1940-07-09 Process for the production of condensation products

Publications (1)

Publication Number Publication Date
DE859460C true DE859460C (en) 1952-12-15

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ID=7030981

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Application Number Title Priority Date Filing Date
DED4409D Expired DE859460C (en) 1940-07-09 1940-07-09 Process for the production of condensation products

Country Status (2)

Country Link
DE (1) DE859460C (en)
NL (1) NL54943C (en)

Also Published As

Publication number Publication date
NL54943C (en) 1943-06-16

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