GB175285A - Improvements relating to the removal of phenol and its homologues from waste waters - Google Patents

Improvements relating to the removal of phenol and its homologues from waste waters

Info

Publication number
GB175285A
GB175285A GB3931/22A GB393122A GB175285A GB 175285 A GB175285 A GB 175285A GB 3931/22 A GB3931/22 A GB 3931/22A GB 393122 A GB393122 A GB 393122A GB 175285 A GB175285 A GB 175285A
Authority
GB
United Kingdom
Prior art keywords
benzene
phenol
caustic soda
soda solution
acid resins
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
GB3931/22A
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.)
POSSEYER ABWASSER und WASSERRE
Original Assignee
POSSEYER ABWASSER und WASSERRE
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 POSSEYER ABWASSER und WASSERRE filed Critical POSSEYER ABWASSER und WASSERRE
Publication of GB175285A publication Critical patent/GB175285A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C07C37/86—Purification; separation; Use of additives, e.g. for stabilisation by treatment giving rise to a chemical modification
    • 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
    • C07C37/005—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
    • C07C37/009—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 waste water
    • 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
    • C07C37/64—Preparation of O-metal compounds with O-metal group bound to a carbon atom belonging to a six-membered aromatic ring
    • C07C37/66—Preparation of O-metal compounds with O-metal group bound to a carbon atom belonging to a six-membered aromatic ring by conversion of hydroxy groups to O-metal groups
    • 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
    • C07C37/685—Processes comprising at least two steps in series
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Phenols are removed from waste waters by extraction with benzene after acidifying, preferably by treating with acid resins obtained in benzene purification; for further use, the benzene is freed from phenol by means of caustic soda solution. A process and apparatus are described for removing phenol from alkaline waste waters from ammonia works. The waters are freed from solid matter by settling, acidified, preferably by passing part of them through acid resins, and agitated with benzene or its homologues; the waste liquid is run off and the benzene agitated with caustic soda solution to remove phenol; fresh waste liquid is then run into the benzene and so on. The caustic soda solution is used repeatedly. The residue from the acid resins used in the neutralizing process may be used as fuel or as insulating material. The Specification as open to inspection under Sect. 91 (3) (a) includes the use as solvent of "another organic liquid produced by the pyrogenic decomposition of coal or brown coal"; this subject-matter does not appear in the Specification as accepted.
GB3931/22A 1921-02-10 1922-02-10 Improvements relating to the removal of phenol and its homologues from waste waters Expired GB175285A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE175285X 1921-02-10

Publications (1)

Publication Number Publication Date
GB175285A true GB175285A (en) 1923-07-10

Family

ID=5692988

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3931/22A Expired GB175285A (en) 1921-02-10 1922-02-10 Improvements relating to the removal of phenol and its homologues from waste waters

Country Status (1)

Country Link
GB (1) GB175285A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2597497A (en) * 1949-07-19 1952-05-20 Allied Chem & Dye Corp Purification of crude phenolacetone mixtures

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2597497A (en) * 1949-07-19 1952-05-20 Allied Chem & Dye Corp Purification of crude phenolacetone mixtures

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