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DE734279C - Process for the production of cation-exchanging synthetic resins - Google Patents

Process for the production of cation-exchanging synthetic resins

Info

Publication number
DE734279C
DE734279C DEI63230D DEI0063230D DE734279C DE 734279 C DE734279 C DE 734279C DE I63230 D DEI63230 D DE I63230D DE I0063230 D DEI0063230 D DE I0063230D DE 734279 C DE734279 C DE 734279C
Authority
DE
Germany
Prior art keywords
synthetic resins
production
cation
formaldehyde
resin
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
DEI63230D
Other languages
German (de)
Inventor
Dr Robert Griessbach
Dr Walther Suetterlin
Dr Hans Wassenegger
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 DEI63230D priority Critical patent/DE734279C/en
Application granted granted Critical
Publication of DE734279C publication Critical patent/DE734279C/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C08G8/00Condensation polymers of aldehydes or ketones with phenols only
    • C08G8/28Chemically modified polycondensates
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J39/00Cation exchange; Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
    • B01J39/08Use of material as cation exchangers; Treatment of material for improving the cation exchange properties
    • B01J39/16Organic material
    • B01J39/18Macromolecular compounds
    • B01J39/19Macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Phenolic Resins Or Amino Resins (AREA)

Description

Verfahren zur Herstellung kationenaustauschender Kunstharze Es ist bekannt, @daß wasserunlösliche synthetische Harze, insbesondere aus mehrwertigen Phenolen -bzw. phenolartigen Naturstoffen und Aldehyden, sich mit Vorteil als Basenaustauscher bei der Wasserreinigung und ähnlichen Verfahren verwenden lassen.Process for the manufacture of cation-exchanging synthetic resins It is known @ that water-insoluble synthetic resins, especially polyvalent ones Phenols or phenol-like natural substances and aldehydes are advantageous as base exchangers Allow to be used in water purification and similar procedures.

Es wurde nun gefunden, .daß man die Kationenaustauschfähigkeit solcher wasserunlöslicher Kondensationsprodukte aus Phenolen und Formaldehyd wesentlich steigern kann, wenn man die zur Kondensation mit Formaldehyd befähigten Ausgangsstoffe zunächst mit einem etwa molekularen Gemisch eines Sulfits und Formaldehyd im Unterschuß in zur Herstellung wasserlöslicher Gerbstoffe an sich bekannter Weise umsetzt, so daß sich teilweise co-Sulfonsäuren bilden, worauf man die Endkondensation mit weiteren Aldehydniengen vornimmt. Die gebildeten Harzgallerten werden zwecks Aufrechterhaltung der Gelstruktur unter Vermeidung von Schmelzerscheinungen vorsichtig getrocknet. Beispiel i i i o Teile Resorcin werden mit Zoo Teilen Wasser, 25 Teilen Natri.umsulfit (wasserfrei) und 22,5 Teilen 3o °folger Formaldehydlösung io Stunden in einem Dampfmantel@gefäß mit Rührvorrichtung auf ioo° erhitzt. Nach Abkühlung auf io° werden weitere i5o Teile 30 oidige Formal:dehydlösung zugegeben. Die Masse erwärmt sich innerhalb einiger Minuten auf 70° und erstarrt rasch zu einer Gallerte. Sie wird zerkleinert und 16 Stunden lang bei ioo° getrocknet. Manerhält I9oTeile eines .dunklen Harzes mit hohem Absorptionsvermögen. Das so erhaltene Harz wurde neben einem gewöhnlichen alkalisch kondensierten Resorcinformaldehydharz ,gegenüber einer verdünnten ammoniakalischen Kupferlösung geprüft. Eine Lösung von O,158 g Cu und 3 g NH3 im Liter wurde zu diesem Zwecke mit einer Gesch-,vindigkeit von io Litern in der Stunde auf je i Liter des gekörnten Harzes (gesiebt mit Sieb von 0,5 bis 2 mm Maschenweite) über dieses geführt. Das Harz gemäß Beispiel i absorbierte :bis zum Durchbruch der ersten Spuren Kupfer 7,8 % Kupfer gegenüber 3,4 % bei Anwendung des gewöhnlichen Harzes. Bei weiterem Durchfluß der gleichen' Kupferlösung nahm -las nach der Erfindung hergestellte Harz I1,1 % Kupfer auf, während das :gewöhnliche Harz nur 6,8 % bindet. In beiden Fällen ließ sich das Kupfer mit iio ofo der auf Kupfer und Ammoniak bezogenen theoretischen Säuremenge wiedergewinnen. Beispiel Eine Lösung von 15oo Teilen Phenol und 5o4. Teilen Natriulnsulfit in 15oo Teilen Was, s er und -40o Raumteifen Formaldehydlöstrtzl; 3 o-o. wird io Stunden ain Rückfluß ge- .- A kocht. Naci Zusatz von weiteren 2oooRaum- teil.en Fortnaldehycllösung (30' oig) und 2o- stünAiger Erwärmung auf 95 bis ioo° er- starrt und erhärtet die Lösung. Das so er- haltene Produkt wird bei 75 bis So° getrock- net. Es ist nach Zerkleinerung ein vorziig- iicher Kationenaustauscher. It has now been found that the cation exchange capacity of such water-insoluble condensation products from phenols and formaldehyde can be increased significantly if the starting materials capable of condensation with formaldehyde are initially used with an approximately molecular mixture of sulfite and formaldehyde in deficit in the production of water-soluble tannins Way, so that partially co-sulfonic acids are formed, whereupon the final condensation is carried out with further aldehydes. The resin jellies formed are carefully dried to maintain the gel structure while avoiding melting phenomena. EXAMPLE 100 parts of resorcinol are heated to 100 ° for 10 hours in a steam-jacketed vessel with a stirrer with zoo parts of water, 25 parts of sodium sulfite (anhydrous) and 22.5 parts of 30 ° subsequent formaldehyde solution. After cooling to 10 °, further 150 parts of 30- oid formaldehyde solution are added. The mass heats up to 70 ° within a few minutes and quickly solidifies into a jelly. It is crushed and dried at 100 ° for 16 hours. 19o parts of a dark resin with high absorption capacity are obtained. The resin obtained in this way was tested against a dilute ammoniacal copper solution in addition to an ordinary alkaline condensed resorcinol-formaldehyde resin. A solution of 0.18 g Cu and 3 g NH3 per liter was for this purpose at a rate of 10 liters per hour per 1 liter of the granular resin (sieved with a sieve of 0.5 to 2 mm mesh size) passed over this. The resin according to example i absorbed: up to the breakthrough of the first traces of copper, 7.8% copper compared to 3.4% when using the usual resin. When the same copper solution continued to flow through, the resin produced according to the invention took up 1.1% copper, while the ordinary resin only binds 6.8%. In both cases the copper could be recovered with 100% of the theoretical amount of acid related to copper and ammonia. example A solution of 1500 parts of phenol and 5o4. Divide sodium sulfite in 1500 parts what, s er and -40o space stiffeners formaldehyde dissolving agent; 3 oo. is refluxed for 10 hours .- A cooks. Naci addition of another 2,000 room part.en Fortnaldehycllösung (30 ' oig) and 2o- constant heating to 95 to 100 ° stares and hardens the solution. That so held product is dried at 75 to Sun ° net. After comminution, it is an excellent iicher cation exchanger.

Claims (1)

I'ATEN'1'ANSI'RUCF1: Verfahren zur Herstellung kationen- austauschender Kunstharze, dadurch ge- kennzeichnet, daß tnan Phenole mit einem et«va molekularen Gemisch eines Sulfit# und Forlnaldehyd im LTntersrhu13 in an sich bekannter Weise kondensiert und das o)-Sulfonsäuren enthaltende Zwischen- produkt unter Zusatz von weiteren Men- gen Aldehyd in eine unlösliche Harz- gallerte überführt, welche unter Erhaltung der Gelstruktur getrocknet wird.
I'ATEN'1'ANSI'RUCF1: Process for the production of cationic replacing synthetic resins, thereby indicates that tnan phenols with a et «va molecular mixture of a sulfite # and formaldehyde in the LTntersrhu13 in an condenses in a known way and that o) intermediate containing sulfonic acids product with the addition of other gene aldehyde into an insoluble resin gelatin transferred, which under preservation the gel structure is dried.
DEI63230D 1936-07-14 1936-07-15 Process for the production of cation-exchanging synthetic resins Expired DE734279C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI63230D DE734279C (en) 1936-07-14 1936-07-15 Process for the production of cation-exchanging synthetic resins

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE203688X 1936-07-14
DEI63230D DE734279C (en) 1936-07-14 1936-07-15 Process for the production of cation-exchanging synthetic resins
DE51236X 1936-12-05

Publications (1)

Publication Number Publication Date
DE734279C true DE734279C (en) 1943-04-13

Family

ID=27180172

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI63230D Expired DE734279C (en) 1936-07-14 1936-07-15 Process for the production of cation-exchanging synthetic resins

Country Status (1)

Country Link
DE (1) DE734279C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2440669A (en) * 1944-06-21 1948-04-27 American Cyanamid Co Aldehyde condensation products of sulfonated aromatic compounds as cation exchange resins
DE850892C (en) * 1943-05-19 1952-09-29 Hoechst Ag Process for the production of solid water-soluble condensation products, in particular tanning agents

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE850892C (en) * 1943-05-19 1952-09-29 Hoechst Ag Process for the production of solid water-soluble condensation products, in particular tanning agents
US2440669A (en) * 1944-06-21 1948-04-27 American Cyanamid Co Aldehyde condensation products of sulfonated aromatic compounds as cation exchange resins

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