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 Farbenfab Vorm Bayer F & CofiledCriticalFarbenfab Vorm Bayer F & Co
Application grantedgrantedCritical
Publication of AT9416BpublicationCriticalpatent/AT9416B/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Description
<Desc/Clms Page number 1>
EMI1.1
EMI1.2
EMI1.3
<Desc/Clms Page number 2>
Kesseln nicht wesentlich überschreitet und die schwofligo Säure stets in geringem tiberschaso vorhandden ist. Die Gase werden unter sofortiger Bildung von Essigsäureanhydrid rapid absorbiert. Nach Boendigung der REactiion wird aus der breiförmigon Masse
EMI2.1
<Desc / Clms Page number 1>
EMI1.1
EMI1.2
EMI1.3
<Desc / Clms Page number 2>
The boilers are not significantly exceeded and the low acidity is always present in a slight excess. The gases are rapidly absorbed with immediate formation of acetic anhydride. After the end of the reaction, the pulpy mass becomes
EMI2.1
Claims (1)
PATENT. ANSPRUCH : Verfahren zur ! arstellung von Essigsäurcanhydrid, darin bestehend, dass man die Salze der Kssigsauro der gleichzeitigen Einwirkung von Chlor und schwefliger Säure unterwirft.
PATENT. CLAIM: Procedure for! Preparation of acetic anhydride, which consists in subjecting the salts of Kssigsauro to the simultaneous action of chlorine and sulphurous acid.
AT9416D1900-11-281900-11-28
Process for the preparation of acetic anhydride.
AT9416B
(en)
Process for the production of macromolecular condensation products by heating, in two stages, monomeric amino polymethylene carboxylic acid amides with more than 5th carbon atoms in the molecule