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
GB17741/24A
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ZECHE MATHIAS STINNES
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ZECHE MATHIAS STINNES
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Application filed by ZECHE MATHIAS STINNESfiledCriticalZECHE MATHIAS STINNES
Publication of GB219699ApublicationCriticalpatent/GB219699A/en
C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
C07C37/005—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by obtaining phenols from products, waste products or side-products of processes, not directed to the production of phenols, by conversion or working-up
C07C37/007—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by obtaining phenols from products, waste products or side-products of processes, not directed to the production of phenols, by conversion or working-up from the tar industry
C—CHEMISTRY; METALLURGY
C07—ORGANIC CHEMISTRY
C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
C07C37/68—Purification; separation; Use of additives, e.g. for stabilisation
C07C37/70—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment
C07C37/74—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment by distillation
Abstract
The high-boiling phenols present in low-temperature coal tar are isolated by distilling the tar at ordinary pressure, collecting the fraction passing over at a temperature of 220-300 DEG C., and then separating the phenols from the neutral oils in the fraction by any known process. If desired, the distillate may be further fractionated prior to the separation treatment. The products are useful as disinfectants.
GB17741/24A1923-07-271924-07-25Improvements in and relating to the production of phenols
ExpiredGB219699A
(en)
Process for converting coal distillation products, particularly tar acids or products containing them, into usable hydrocarbons substantially free from these acids