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.)
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Josef Meissner GmbH and Co KG
Original Assignee
Josef Meissner GmbH and Co KG
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Filing date
Publication date
Application filed by Josef Meissner GmbH and Co KGfiledCriticalJosef Meissner GmbH and Co KG
Publication of ES284114A1publicationCriticalpatent/ES284114A1/en
Separation, Recovery Or Treatment Of Waste Materials Containing Plastics
(AREA)
Heterocyclic Compounds That Contain Two Or More Ring Oxygen Atoms
(AREA)
Processing Of Solid Wastes
(AREA)
Abstract
Process for the cleavage of acetals, especially pentaerythritol and formaldehyde acetals, which are formed in the preparation of pentaerythritol, characterized in that the cleavage is carried out in aqueous solution in a continuous manner and at a temperature of at least 150º C, preferably of 200º C and under a high pressure corresponding thereto, in the presence of formic acid or of an acid of similar activity, at a pH of less than 5 and preferably less than 4. (Machine-translation by Google Translate, not legally binding)
ES0284114A1962-01-261963-01-12A procedure for the separation of acetals (Machine-translation by Google Translate, not legally binding)
ExpiredES284114A1
(en)
Procedure for the obtaining of a difficult derivative solubility of the calicreine inactivator (Machine-translation by Google Translate, not legally binding)