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DE693150C - Process for preparing acid tar - Google Patents

Process for preparing acid tar

Info

Publication number
DE693150C
DE693150C DE1933K0130020 DEK0130020D DE693150C DE 693150 C DE693150 C DE 693150C DE 1933K0130020 DE1933K0130020 DE 1933K0130020 DE K0130020 D DEK0130020 D DE K0130020D DE 693150 C DE693150 C DE 693150C
Authority
DE
Germany
Prior art keywords
pressure
acid tar
acid
tar
preparing acid
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
DE1933K0130020
Other languages
German (de)
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.)
ERICH ASSER DR
GEORG WENCK
HANNS KUNZE DIPL ING
Original Assignee
ERICH ASSER DR
GEORG WENCK
HANNS KUNZE DIPL ING
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 ERICH ASSER DR, GEORG WENCK, HANNS KUNZE DIPL ING filed Critical ERICH ASSER DR
Priority to DE1933K0130020 priority Critical patent/DE693150C/en
Application granted granted Critical
Publication of DE693150C publication Critical patent/DE693150C/en
Expired legal-status Critical Current

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

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)

Description

Verfahren. zum Aufbereiten von Säureteer Man hat Säureteer mit einer Schwefelsäurekonzentration von 5o bis 6o° B6 nach Rufpressen von Kohlensäure auf einen Druck von io atü erhitzt. Nach 2stündiger Erhitzung wurde das Gemisch durch den Kohlensäuredruck abgeblasen und die Schwefelsäure von dem Rückstand getrennt. Durch diese W,ärmebehandlung und das Abblasen unter hohem Druck und bei hoher Temperatur war derAsphalt zu einer koksartigen harten Masse zerstört.Procedure. for preparing acid tar You have acid tar with a Sulfuric acid concentration from 5o to 6o ° B6 after pressing of carbonic acid heated to a pressure of 10 atmospheres. After heating for 2 hours, the mixture became permeable blown off the carbonic acid pressure and separated the sulfuric acid from the residue. Through this heat treatment and blowing off under high pressure and at high temperature the asphalt was destroyed to a coke-like hard mass.

Demgegenüber betrifft die voliegende Erfindung ein Verfahren zum Aufbereiten- von Säureteer durch Erhitzen unter Druck, das sich dadurch auszeichnet, daß man den unverdünnten Säureteer auf etwa 16o bis i8o° erhitzt, dann den Druck durch Rufpressen von Luft auf io bis 25 atü erhöht und unter diesen B-edingungeal etwa 2 Stunden hält, wonach- die Masse durch Anwendung eines Kühlmittels auf ungefähr 7o° abgekühlt, alsdann entspannt und der erhaltene Rückstand nach Abtrennung der Schwefelsäure bei i 5o bis 2oo° mit überhitztem Dampf behandelt wird. Beispiel i 8,o kg eines Säureharzes aus der Erdölraffinafion werden in einem geschlossenen Autoklaven unter lebhaftem Rühren auf 16o° im Laufe von etwa i Stunde erhitzt, dabei steigt der Druck auf 3,5 atü an. Nun wird Luft in den Autoklaven gepreßt, bis der Druck auf 16 "atü angestiegen ist. Die Masse wird etwa 2 Stunden unter Druck im geschlossenen Autoklaven stehengelassen. Darauf wird der Inhalt des Autoklaven durch Anwendung von Kühhvasser auf etwa 7o° abgekühlt, der Druck entspannt und die Schwefelsäure ablaufen gelassen, die in einer Menge von 8,o kg und .einer Konzentration von 5%° Be gewonnen wird. Der zurückbleibende Asphalt wird nun mit überhitztem Wasserdampf bei i 5o bis 2oo° destilliert. Es werden aus 9, 5 kg des Zwischenprodukts nach der _ Destillation 9, 2 kg eines schwarzen, plastischen Bitumens von einem Erweichungspunkt von ¢2° erhalten, das praktisch frei von Schwefelsäure äst, das sich vorzüglich für den Straßenbau eignet und das den Naturasphalt zu ersetzen vermag.In contrast, the present invention relates to a method for processing acid tar by heating under pressure, which is characterized in that the undiluted acid tar is heated to about 16o to 18o °, then the pressure is increased to 10 to 25 atmospheres and below by pressing air This condition holds for about 2 hours, after which the mass is cooled to about 70 ° by using a coolant, then depressurized and the residue obtained, after separation of the sulfuric acid, is treated with superheated steam at 15 ° to 200 °. EXAMPLE 18.0 kg of an acid resin from the petroleum refinery are heated in a closed autoclave with vigorous stirring to 160 ° over the course of about one hour, during which the pressure rises to 3.5 atmospheres. Air is now forced into the autoclave until the pressure has risen to 16 "atm. The mass is left to stand under pressure in the closed autoclave for about 2 hours. The contents of the autoclave are then cooled to about 70 ° using cooling water and the pressure is released and let the sulfuric acid run off, which is obtained in an amount of 8.0 kg and a concentration of 5% Be. The remaining asphalt is now distilled with superheated steam at 150 to 200 °. It is from 9.5 kg of the intermediate product obtained after distillation 9.2 kg of a black, plastic bitumen with a softening point of ¢ 2 °, which is practically free of sulfuric acid, which is ideal for road construction and which can replace natural asphalt.

Claims (1)

PATrN,TANSPRUCII Verfahren zum Aufbereiten von Säureteer durch Erhitzen unter Druck, dadurch gekennzeichnet, daß man den unverdünnten Säureteer auf etwa 16o bis i8o° erhitzt, dann den Druck durch Rufpressen von Luft auf 10 bis 25 atü erhöht und unter diesen Bedingungen etwa 2 Stunden lang hält, wonach die - Masse * durch Anwendung eines Kühlmittels auf ungefähr 70° abgekühlt, alsdann entspannt und der. erhaltene Asphalt nach Abtrennung der Schwefelsäure bei i 5o bis 2oo° mit überhitztem Dampf behandelt wird.PATrN, TANSPRUCII Process for preparing acid tar by heating under pressure, characterized in that the undiluted acid tar is heated to about 16o to 18o °, then the pressure is increased to 10 to 25 atmospheres by pressing air and under these conditions for about 2 hours holds, after which the - mass * is cooled by the application of a coolant to about 70 °, then relaxed and the. obtained asphalt is treated with superheated steam after separation of the sulfuric acid at 15o to 2oo °.
DE1933K0130020 1933-05-05 1933-05-05 Process for preparing acid tar Expired DE693150C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1933K0130020 DE693150C (en) 1933-05-05 1933-05-05 Process for preparing acid tar

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1933K0130020 DE693150C (en) 1933-05-05 1933-05-05 Process for preparing acid tar

Publications (1)

Publication Number Publication Date
DE693150C true DE693150C (en) 1940-07-03

Family

ID=7247017

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1933K0130020 Expired DE693150C (en) 1933-05-05 1933-05-05 Process for preparing acid tar

Country Status (1)

Country Link
DE (1) DE693150C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE855160C (en) * 1942-06-03 1952-11-10 Rhein Chemie G M B H Process for the production of rubber compounds

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE855160C (en) * 1942-06-03 1952-11-10 Rhein Chemie G M B H Process for the production of rubber compounds

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