DE492755C - Process for the production of organic acids from oxidation products of paraffin hydrocarbons - Google Patents

Process for the production of organic acids from oxidation products of paraffin hydrocarbons

Info

Publication number
DE492755C
DE492755C DEI32809D DEI0032809D DE492755C DE 492755 C DE492755 C DE 492755C DE I32809 D DEI32809 D DE I32809D DE I0032809 D DEI0032809 D DE I0032809D DE 492755 C DE492755 C DE 492755C
Authority
DE
Germany
Prior art keywords
organic acids
oxidation products
paraffin hydrocarbons
production
powder
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
DEI32809D
Other languages
German (de)
Inventor
Dr Hans Franzen
Dr Martin Luther
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 DEI32809D priority Critical patent/DE492755C/en
Application granted granted Critical
Publication of DE492755C publication Critical patent/DE492755C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • C07C51/48—Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

Verfahren zur Gewinnung von organischen Säuren aus Oxydationsprodukten der Paraffinkohlenwasserstoffe Die Gewinnung organischer Säuren aus den Oxydationsprodukten von Kohlenwässerstoffen durch Verseifung der Oxydationsprodukte mit Lösungen alkalische- Mittel, Extraktion .des Unverseifbaren aus der bei der Verseifung erhaltenen alkalischen Lösung und Abscheidung der organischen Säuren aus der letzteren ist wegen .der Bildung von Emulsionen beim Extrahieren mit Schwieri;äkeiten verbunden. Man hast bereits vorgeschlagen, die alkalische Lösung zur Trockne einzudampfen und erst den so erhaltenen Rückstand mit geeigneten Lösungsmitteln zu extrahieren. Das Eindampfen der alkalischen Lösung ist Indessen wegen ihrer großen 1\T,eigung zur Schaumbildung schwierig und nur unter Anwendung besonderer Maßnahmen, wie Zusatz von Sand u. 4-l., durchführbar.Process for the production of organic acids from oxidation products of paraffinic hydrocarbons The extraction of organic acids from the oxidation products of hydrocarbons by saponification of the oxidation products with solutions of alkaline Means, extraction of the unsaponifiable from the alkaline obtained in the saponification Dissolution and separation of the organic acids from the latter is due to the formation associated with difficulties when extracting emulsions. You already have suggested evaporating the alkaline solution to dryness and only the so obtained Extract residue with suitable solvents. Evaporation of the alkaline However, the solution is difficult because of its great tendency to foam Can only be carried out using special measures such as adding sand and 4-liter.

Es wunde» nun gefunden, daß man aus deal Oxydationsprodukten von Paraffirik,ahlenwais-@serstoffen, Wachsen u. @dgl. die organischen Säuren in sehr einfacher Weise und unter Vermeidung der Emulslons- und Schaumbildung, ohne da@ß überhaupt ein Eindampfen erforderlich ist, in freier Form oder als Seifen isolieren kann, wenn man die Oxydationsprodukte mit einem solchen überschuß eines verseifenden Mittels unter weitgehendem Ausschluß von Wasser verseift, daß die eintstehende Seife sich ohne weiteres zu einem feinen Pulver vermahlen läßt, und aus diesem Pulver das Unverseifbare extrahiert und danach aus .dem Rückstand die organischen Säuren in freier Form abtrennt. Beispiel ioo Teile rohes Oxydationsprodukt von Paraffin mit einem Gehalt an Unverseifbarem von ?9 % werden mit der doppelten, zurr vollständ@gen Verseifung erforderlichen Menge trockenen Calciumhydroxyds verrührt, worauf man das Gemisch 6 Stunden lang auf 135' erwärmt. Die braune, harte Kalzseife wird auf einer Mühle zu einem feinen Pulver vermahlen und 5mal mit i oo Teilen Benzin bei 6o bis ioo° extraliiert, wobei der größte Teil des Unverse,ifbaren vorm. Benzin gelöst wird. Die als Rückstand verbliebene Kalkseife wird von dein letzten. Resten Lösungsmittel durch Erwärmen befreit und mit Mineralsäure zerlegt. Die Ausbeute an Fettsäuren ist quantitativ; der Gehalt an Unverseifbarem beträgt nur 2,4 #b und darunter.It was sore now found that oxidation products of paraffiric, ahlenwais- @ sstoff, Waxing and the like the organic acids in a very simple way and with avoidance the formation of emulsions and foams without evaporation at all is, in free form or as soaps, if you can isolate the oxidation products with such an excess of a saponifying agent to a large extent saponified by water so that the resulting soap readily becomes a fine one Can be ground powder, and extracted from this powder the unsaponifiable and then from .dem residue separates the organic acids in free form. Example ioo Parts of the crude oxidation product of paraffin with an unsaponifiable content of ? 9% are used with double the amount required for complete saponification Stirring dry calcium hydroxide, whereupon the mixture is heated to 135 'for 6 hours warmed up. The brown, hard lime soap turns into a fine powder on a grinder ground and extralated 5 times with 100 parts of gasoline at 60 to 100 °, the largest part of the Unverse, ifbaren vorm. Gasoline is dissolved. The one remaining as residue Lime soap is from your last. Residual solvent freed by heating and decomposed with mineral acid. The yield of fatty acids is quantitative; the salary of unsaponifiables is only 2.4 #b and below.

Claims (1)

P.iTr"NTAlNTSPRL CII Verfahren zur Gewinnung organischer Säuren aus Oxydationsprodukten der Pa= raffinkohlenwasserstoffe, Wachse u@sw., @da- durch gekennzeichnet, daß man die Oxy- datio:nsp,roduktie'triit einem solchen über- schuß . eines verselfenden Mittels unter weitgehendem Ausschluß von Wasser ver- seift, daß die entstehende Seife sich ohne
weiteres zu ein= feinen Pulver vermah- len läBt, aus diesem Pulver das Unver- s,eifbare extrahiert und danach gegebe- nenfalls aus dem Rückstand die ora .ni- schen Säuren in freier Form abrennt.
P.iTr "NTAlNTSPRL CII Process for the extraction of organic acids from oxidation products of the paraffin hydrocarbons, waxes, etc., @ da- characterized by the fact that the oxy- datio: nsp, roduktie'it triggers such a shot . of a self-relieving agent extensive exclusion of water soaps so that the resulting soap can be used without
further ground to a = fine powder len makes it possible for this powder to s, extractable and then given if necessary, the ora .ni from the residue between acids separates in free form.
DEI32809D 1927-12-01 1927-12-01 Process for the production of organic acids from oxidation products of paraffin hydrocarbons Expired DE492755C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEI32809D DE492755C (en) 1927-12-01 1927-12-01 Process for the production of organic acids from oxidation products of paraffin hydrocarbons

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEI32809D DE492755C (en) 1927-12-01 1927-12-01 Process for the production of organic acids from oxidation products of paraffin hydrocarbons

Publications (1)

Publication Number Publication Date
DE492755C true DE492755C (en) 1930-02-27

Family

ID=7188233

Family Applications (1)

Application Number Title Priority Date Filing Date
DEI32809D Expired DE492755C (en) 1927-12-01 1927-12-01 Process for the production of organic acids from oxidation products of paraffin hydrocarbons

Country Status (1)

Country Link
DE (1) DE492755C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE767801C (en) * 1937-05-01 1953-10-12 Maerkische Seifen Ind Process for the production of carboxylic acids from the products obtained by the oxidation of hydrocarbons

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE767801C (en) * 1937-05-01 1953-10-12 Maerkische Seifen Ind Process for the production of carboxylic acids from the products obtained by the oxidation of hydrocarbons

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