GB823381A - Production of mixed pitches from phenol pitches - Google Patents
Production of mixed pitches from phenol pitchesInfo
- Publication number
- GB823381A GB823381A GB124556A GB124556A GB823381A GB 823381 A GB823381 A GB 823381A GB 124556 A GB124556 A GB 124556A GB 124556 A GB124556 A GB 124556A GB 823381 A GB823381 A GB 823381A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pitch
- phenolic
- additive
- weight
- mixed
- 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
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
- C10C1/00—Working-up tar
- C10C1/005—Working-up tar by mixing two or more coaltar fractions
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Working-Up Tar And Pitch (AREA)
Abstract
823,381. Pitch. LEUNA-WERKE W. ULBRICHT VEB. Jan. 13, 1956, No. 1245/56. Class 55 (2). Phenolic pitch obtained as a residue from the distillation of crude cresol is mixed with an additive such as coal-tar pitch, lignite-tar pitch, generator-tar pitch or acid resins obtained from the regeneration of lubricating oil for refining purposes to reduce its watersolubility, the mixing temperature being 10- 60‹ C. above the softening point of the phenolic pitch or the additive whichever is the higher. One part by weight of the additive may be added to 1 to 3 parts by weight of the phenolic pitch. In a modification the additive is added to a crude phenolic oil distillation residue before it is distilled to obtain a phenolic pitch, the mixture then being distilled to give a soft, normal or hard pitch as required. In this latter case 2-5% concentrated sulphuric acid or waste acids or 20-30% acid oils such as the residues from refining phenols may be added to the mixture before distillation. In an example 50 parts by weight of a phenolic pitch was melted with 50 parts by weight of an acid resin from the regeneration of lubricating oil and mixed at 125-135‹ C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB124556A GB823381A (en) | 1956-01-13 | 1956-01-13 | Production of mixed pitches from phenol pitches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB124556A GB823381A (en) | 1956-01-13 | 1956-01-13 | Production of mixed pitches from phenol pitches |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB823381A true GB823381A (en) | 1959-11-11 |
Family
ID=9718640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB124556A Expired GB823381A (en) | 1956-01-13 | 1956-01-13 | Production of mixed pitches from phenol pitches |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB823381A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0357885A2 (en) * | 1988-09-08 | 1990-03-14 | Rütgerswerke Aktiengesellschaft | Precursor of pyrolytic carbon |
-
1956
- 1956-01-13 GB GB124556A patent/GB823381A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0357885A2 (en) * | 1988-09-08 | 1990-03-14 | Rütgerswerke Aktiengesellschaft | Precursor of pyrolytic carbon |
| EP0357885A3 (en) * | 1988-09-08 | 1991-07-03 | Rütgerswerke Aktiengesellschaft | Precursor of pyrolytic carbon |
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