US2136208A - Process for converting liquid pitch into a fragmentary, transportable form - Google Patents

Process for converting liquid pitch into a fragmentary, transportable form Download PDF

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Publication number
US2136208A
US2136208A US149616A US14961637A US2136208A US 2136208 A US2136208 A US 2136208A US 149616 A US149616 A US 149616A US 14961637 A US14961637 A US 14961637A US 2136208 A US2136208 A US 2136208A
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US
United States
Prior art keywords
pitch
water
fragmentary
converting liquid
liquid pitch
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
US149616A
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English (en)
Inventor
Fehr Karl
Schneider Wilhelm
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.)
FIRM RUTGERSWERKE AG
FIRM RUTGERSWERKE-AKTIENGESELLSCHAFT
Original Assignee
FIRM RUTGERSWERKE AG
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 FIRM RUTGERSWERKE AG filed Critical FIRM RUTGERSWERKE AG
Application granted granted Critical
Publication of US2136208A publication Critical patent/US2136208A/en
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    • 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
    • C10C3/00—Working-up pitch, asphalt, bitumen
    • C10C3/14—Solidifying, Disintegrating, e.g. granulating
    • C10C3/16—Solidifying, Disintegrating, e.g. granulating by direct contact with liquids

Definitions

  • the still liquid pitch is running oif into flowing water and is allowed to solidify and set therein.
  • the solidified pitch whilst still hot is separated in a suitable manner from the water. After the separation from water on further cooling in the air it breaks up into fragments, constituting a transportable and substantially water-free. pitch.
  • the water may be used in circulation. The temperature of the flowing. water and the relative proportions of water and pitch are so adjusted that the liquid pitch solidifies and the solidified pitch after separation from the. water still possesses sumcient latentheat to effect evaporation of the adhering moisture.
  • the operations of chilling', comminuting and transporting the pitch can accordingly be combined into one operation.
  • Example 1 Hot liquid pitch at a temperature or 350 0.
  • softening point 150 C. such as is obtained as distillation residue in the manufacture of hard pitch from coal tar is introduced in the form of a thin jet into a channel along which water at 40 C. flows.
  • the pitch quickly sets with a smooth surface without the formation of scum and without water being enclosed in the solidifled pitch.
  • For cooling and solidifying kgms. 'of pitch 2000 kgms. of flowing water at 40 C. may, for instance, be used.
  • the solidifled pitch is conveyed by the water stream into a steeply inclined sieve or other suitable device, which is adapted to drain of! the water so that the still hot, solidifled pitch is to a large extent separated from the water.
  • the temperature of the pitch now amounts to C.
  • Example 2 The working up of a soft pitch from coal tar having a softening point of 70 C. is carried out Example 3 'Hot liquid pitch at a temperature of 250 C.
  • the pitch passes out of the container I, through the outlet 2 into a channel 3 which is fed from the container 5 with flowing water.
  • the water and the pitch leave the channel at the inclined sieve l.
  • the pitch falls into the conveyer apparatus, whilst the water is withdrawn over an inclined wall 6.
  • a process for converting liquid pitch into a fragmentary, transportable form by running ofl the hot liquid pitch in a thin jet into flowing water, mechanically separating the solidified 10 pitch, whilst still hot, from the water, the remaining heat evaporating the adhering water from the pitch thus separated by exposing it to air at normal temperature whereby the dissipation of the retained heat in the separated pitch is effective to dry and i'ragment the same as it cools to normal temperature.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Civil Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Working-Up Tar And Pitch (AREA)
US149616A 1936-07-04 1937-06-22 Process for converting liquid pitch into a fragmentary, transportable form Expired - Lifetime US2136208A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2136208X 1936-07-04

Publications (1)

Publication Number Publication Date
US2136208A true US2136208A (en) 1938-11-08

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ID=7986642

Family Applications (1)

Application Number Title Priority Date Filing Date
US149616A Expired - Lifetime US2136208A (en) 1936-07-04 1937-06-22 Process for converting liquid pitch into a fragmentary, transportable form

Country Status (2)

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US (1) US2136208A (enrdf_load_stackoverflow)
BE (1) BE420948A (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2550838A (en) * 1944-08-03 1951-05-01 Union Chimique Belge Sa Process for making granulated pitch
US2896261A (en) * 1954-12-27 1959-07-28 Gulf Research Development Co Method of cooling and granulating petroleum pitch
US3037239A (en) * 1959-11-24 1962-06-05 Ruetgerswerke Ag Process and device for solidifying pitches, bitumina and the like

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2550838A (en) * 1944-08-03 1951-05-01 Union Chimique Belge Sa Process for making granulated pitch
US2896261A (en) * 1954-12-27 1959-07-28 Gulf Research Development Co Method of cooling and granulating petroleum pitch
US3037239A (en) * 1959-11-24 1962-06-05 Ruetgerswerke Ag Process and device for solidifying pitches, bitumina and the like

Also Published As

Publication number Publication date
BE420948A (enrdf_load_stackoverflow) 1937-05-31

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