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 materialInfo
- 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
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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (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.
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2523154A (en) * | 1947-09-27 | 1950-09-19 | Standard Oil Dev Co | Purification of petroleum phenols |
-
1931
- 1931-05-18 GB GB1466131A patent/GB386977A/en not_active Expired
Cited By (1)
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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