US1613723A - Art of preparing pitches - Google Patents

Art of preparing pitches Download PDF

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Publication number
US1613723A
US1613723A US613782A US61378223A US1613723A US 1613723 A US1613723 A US 1613723A US 613782 A US613782 A US 613782A US 61378223 A US61378223 A US 61378223A US 1613723 A US1613723 A US 1613723A
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US
United States
Prior art keywords
pitch
acid
art
mixture
coke
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 - Lifetime
Application number
US613782A
Inventor
Francis M Rogers
Oscar E Bransky
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.)
Standard Oil Co
Original Assignee
Standard Oil Co
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 Standard Oil Co filed Critical Standard Oil Co
Priority to US613782A priority Critical patent/US1613723A/en
Application granted granted Critical
Publication of US1613723A publication Critical patent/US1613723A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L5/00—Solid fuels
    • C10L5/02—Solid fuels such as briquettes consisting mainly of carbonaceous materials of mineral or non-mineral origin
    • C10L5/06—Methods of shaping, e.g. pelletizing or briquetting
    • C10L5/10—Methods of shaping, e.g. pelletizing or briquetting with the aid of binders, e.g. pretreated binders

Definitions

  • This invention relates to methods for the production of binder; pitches suitable for use in saturating felts, briquetting coal, and the like and will be fully understood from the 5 following specification.
  • acid coke makes up the intermediate layer of the sludge obtained by the treatment of parafiin distillate with strong sulfuric acid, for example, 66 B. acid after dilution andstratification.
  • strong sulfuric acid for example, 66 B. acid
  • sludges form three layers, a lower dilute sulfuric acid layer, an upper o1ly layer, and an intermediate or acid coke layer, which, upon cooling, becomes substantially solid.
  • a binder pitch suitable for use in briquetting, saturating, macadamizing, etc.
  • a binder pitch is produced by incorporating acid coke 1n sultable proportions in relatively heavy hydrocarbon oils of relatively high viscosity, say from 3 Engler upward (212).
  • the oils employed be of greater density than water, such as, for example, the pressure tar or residuum from the Burton pressure still, reduced to the viscosity above set forth.
  • pressure tar reduced to a viscosity of 6 Engler at 212 F. has been found satisfactory for use in connection with the present invention.
  • the oil is heated to a temperature of above 160 F. and preferably about 200 F.
  • the proportions used vary with the desired characteristics of' the final product; for example, for theproduction of a pitch suitable for use as a binder for briquets 25 per cent of acid coke, ma be employed.
  • the mixture is blown with air at a temperature of 200 to 210 F. until the Water is substantially completely removed therefrom. It is then gradually heated up (with introduction of steam Application filed January 19, 1923; Serial No. 613,782.
  • the heating of the mixture being carried to about 600 F. or until the mixture has a melting point, in the case of a briquetting pitch, of 145 to 150 F.
  • the melting point desired in the final product will vary with the precise nature of the roduct desired, and in an case, the heating terminate when a pitcii of the desired melting point has been obtained.
  • the method of producing a binder pitch which consists in introducing acid coke into a heavy hydrocarbon oil and reducing the mixture by fire and steam at a temperature not above about 600 F., to the desired meltingpoint.
  • the method of producing a binder pitch which consists in introducing from 15 to 45 per cent of acid coke into a hydrocarbon oil of a viscosity of at least 3 Engler, at 212 F., and heating the mixture in the presence of steam to a temperature not above about 600 F., toproduce a pitch of the desired melting point.
  • the method of producing a binder pitch which consists in introducing from 15 to 45 per cent of acid coke into a pressure tar residuum and heating the mixture in the presence of steam toa temperature not above about 600 F., to produce apitch of the desired melting point.
  • the method of producing a binder pitch which consists in heating a heavy hydrocarbon oil to about 200 F., introducing acid coke thereinto, and subsequently heating the mixture in the presence of steam to a temperature not above about 600 F., to produce a pitch having the desired melting point.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Working-Up Tar And Pitch (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)

Description

Patented Jan. 11,1921.
UNITED STATES PATENT OFFICE.
FRANCIS M. ROGERS AND OSCAR E. BRANSKY, OF WHITING, INDIANA, ASSIGNORS TO STANDARD OIL COMPANY, 01! WHITING,'INDIA NA, A CORPORATION OF IN- DIANA.
ART OF PREPARING BITCHES.
No Drawing.
This invention relates to methods for the production of binder; pitches suitable for use in saturating felts, briquetting coal, and the like and will be fully understood from the 5 following specification. i
In carrying out the present mventlon, use is made of the material commonly designated as acid coke, which makes up the intermediate layer of the sludge obtained by the treatment of parafiin distillate with strong sulfuric acid, for example, 66 B. acid after dilution andstratification. Upon Stratification, such sludges form three layers, a lower dilute sulfuric acid layer, an upper o1ly layer, and an intermediate or acid coke layer, which, upon cooling, becomes substantially solid. This material, up to the present time,
has found substantially no commercial use except as fuel.
In accordance with the present invention, a binder pitch, suitable for use in briquetting, saturating, macadamizing, etc., is produced by incorporating acid coke 1n sultable proportions in relatively heavy hydrocarbon oils of relatively high viscosity, say from 3 Engler upward (212 It is preferred that the oils employed be of greater density than water, such as, for example, the pressure tar or residuum from the Burton pressure still, reduced to the viscosity above set forth. For example, pressure tar reduced to a viscosity of 6 Engler at 212 F. has been found satisfactory for use in connection with the present invention.
The oil is heated to a temperature of above 160 F. and preferably about 200 F. A suitable proportion of acid coke, thoroughly washed with water, say from 15 to- 15 per cent, is then admixed therewith. The proportions used vary with the desired characteristics of' the final product; for example, for theproduction of a pitch suitable for use as a binder for briquets 25 per cent of acid coke, ma be employed. The mixture is blown with air at a temperature of 200 to 210 F. until the Water is substantially completely removed therefrom. It is then gradually heated up (with introduction of steam Application filed January 19, 1923; Serial No. 613,782.
at least after the temperature of 300 F. has been reached), the heating of the mixture being carried to about 600 F. or until the mixture has a melting point, in the case of a briquetting pitch, of 145 to 150 F. The melting point desired in the final product .will vary with the precise nature of the roduct desired, and in an case, the heating terminate when a pitcii of the desired melting point has been obtained.
We claim:
1. The method of producing a binder pitch which consists in introducing acid coke into a heavy hydrocarbon oil and reducing the mixture by fire and steam at a temperature not above about 600 F., to the desired meltingpoint.
2. The method of producing a binder pitch which consists in introducing from 15 to 45 per cent of acid coke into a hydrocarbon oil of a viscosity of at least 3 Engler, at 212 F., and heating the mixture in the presence of steam to a temperature not above about 600 F., toproduce a pitch of the desired melting point.
3. The method of producing a binder pitch which consists in introducing from 15 to 45 per cent of acid coke into a pressure tar residuum and heating the mixture in the presence of steam toa temperature not above about 600 F., to produce apitch of the desired melting point.
4. The method of producing a briquetting pitch which consists in admixing 20 per cent of acid coke with a pressure tar residmim having a viscosity of 6 Engler at 212 F., and heating the mixturein the presence of steamto about 600 F.
5. The method of producing a binder pitch which consists in heating a heavy hydrocarbon oil to about 200 F., introducing acid coke thereinto, and subsequently heating the mixture in the presence of steam to a temperature not above about 600 F., to produce a pitch having the desired melting point.
FRANCIS M. ROGERS. OSCAR E. BRANSKY.
US613782A 1923-01-19 1923-01-19 Art of preparing pitches Expired - Lifetime US1613723A (en)

Priority Applications (1)

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US613782A US1613723A (en) 1923-01-19 1923-01-19 Art of preparing pitches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US613782A US1613723A (en) 1923-01-19 1923-01-19 Art of preparing pitches

Publications (1)

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