Dry neutralization process for organic liquid phases
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United States of America Patent
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May 11, 1993
Grant Date -
N/A
app pub date -
Aug 23, 1991
filing date -
Dec 24, 1988
priority date (Note) -
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status (Latency Note)
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Abstract
The invention relates to a process for the production of pure, substantially neutral, low-volatility organic compounds containing reactive olefinic double bonds from starting materials which contain these components together with small quantities of acidic reaction constituents and/or corresponding auxiliaries in the liquid phase by neutralization and separation of the salts formed. The process according to the invention is characterized in that, to obtain pure products which combine low residual acid values with low color standard numbers, even without distillation, the neutralization is carried out as dry neutralization using solid, finely powdered oxides, carbonates and/or hydroxides of the alkali and/or alkaline earth metals, if desired together with other insoluble basic metal oxide compounds, and the organic liquid phase is subsequently separated from the finely powdered solid phase. The oxides and/or hydroxides of calcium and/or magnesium are preferably used for neutralization.
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- 3 Citation Count
- C07C Class
- 13.90 % this patent is cited more than
- 32 Age