GB386977A - Improvements in and relating to the treatment of waste products obtained in the refining of hydrocarbon material - Google Patents

Improvements in and relating to the treatment of waste products obtained in the refining of hydrocarbon material

Info

Publication number
GB386977A
GB386977A GB1466131A GB1466131A GB386977A GB 386977 A GB386977 A GB 386977A GB 1466131 A GB1466131 A GB 1466131A GB 1466131 A GB1466131 A GB 1466131A GB 386977 A GB386977 A GB 386977A
Authority
GB
United Kingdom
Prior art keywords
distillation
disulphides
fractions
mercaptans
refining
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
GB1466131A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1466131A priority Critical patent/GB386977A/en
Publication of GB386977A publication Critical patent/GB386977A/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
    • C07C37/70—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment
    • C07C37/72—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment by liquid-liquid treatment
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Phenolic bodies are recovered from the alkaline wash liquors obtained in the refining of mineral oils and particularly cracked petroleum oils by first acidifying, then subjecting the separated oily layer to distillation, treating the fraction boiling between 180 and 270 DEG C. to reduction to convert the disulphides present into mercaptans, fractionally distilling the product, oxidizing the several fractions obtained to reconvert the mercaptans into disulphides, and finally subjecting the oxidized products to fractional distillation to separate the phenols from the disulphides. In the oil refining, the wash liquor comprises an aqueous solution of an alkali, e.g. caustic soda, in which litharge may have been dissolved. For the acidification of the wash liquor, use is preferably made of hydrogen sulphide or gases containing it, e.g. those produced in a cracking process and the gas contacted with the liquor in counter-current in order to avoid frothing. The resulting oily layer is preferably freed from contaminating water by the successive addition of small amounts of an acid such as sulphuric acid; in addition, any oil remaining in the aqueous wash liquor may be extracted with an organic solvent, e.g. a petroleum hydrocarbon, and added to the main oily material. The reduction of the selected distillation fraction may be effected by means of iron and sulphuric acid and the subsequent distillation is conveniently arranged to give fractions 180-220 DEG C., 220-270 DEG C. and a residue above 270 DEG C. Each of these is oxidized, preferably by introducing air into the boiling liquid. The phenolic bodies ultimately obtained are useful in the manufacture of insecticides, wood preservatives, disinfectants, and resins. The tarry residue above 270 DEG C. may be mixed with the oxidized fractions and used in the manufacture of wood preservatives, or may be separated by distillation into fractions comprising high-boiling phenols, mercaptans, disulphides, and asphaltic material.
GB1466131A 1931-05-18 1931-05-18 Improvements in and relating to the treatment of waste products obtained in the refining of hydrocarbon material Expired GB386977A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1466131A GB386977A (en) 1931-05-18 1931-05-18 Improvements in and relating to the treatment of waste products obtained in the refining of hydrocarbon material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1466131A GB386977A (en) 1931-05-18 1931-05-18 Improvements in and relating to the treatment of waste products obtained in the refining of hydrocarbon material

Publications (1)

Publication Number Publication Date
GB386977A true GB386977A (en) 1933-01-18

Family

ID=10045294

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1466131A Expired GB386977A (en) 1931-05-18 1931-05-18 Improvements in and relating to the treatment of waste products obtained in the refining of hydrocarbon material

Country Status (1)

Country Link
GB (1) GB386977A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2523154A (en) * 1947-09-27 1950-09-19 Standard Oil Dev Co Purification of petroleum phenols

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2523154A (en) * 1947-09-27 1950-09-19 Standard Oil Dev Co Purification of petroleum phenols

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