DD213428A2 - METHOD AND DEVICE FOR THE CONTINUOUS ALKYLATION OF AROMATES WITH CHLOROPARAFFINS - Google Patents
METHOD AND DEVICE FOR THE CONTINUOUS ALKYLATION OF AROMATES WITH CHLOROPARAFFINS Download PDFInfo
- Publication number
- DD213428A2 DD213428A2 DD24712183A DD24712183A DD213428A2 DD 213428 A2 DD213428 A2 DD 213428A2 DD 24712183 A DD24712183 A DD 24712183A DD 24712183 A DD24712183 A DD 24712183A DD 213428 A2 DD213428 A2 DD 213428A2
- Authority
- DD
- German Democratic Republic
- Prior art keywords
- chloroparaffins
- alkylation
- aromates
- alkylbenzene
- continuous alkylation
- Prior art date
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Verfahren zur kontinuierlichen Alkylierung von Aromaten mit Chlorparaffinen zur Erzeugung eines Alkylbenzens mit Bromzahlen = 0,05 g Br tief 2/100 g Substanz durch Einspeisung eines Teiles des zur Alkylierung benoetigten Benzens in den mit Aluminium zu regenerierenden Kontaktoelstrom.Process for the continuous alkylation of aromatics with chloroparaffins to produce an alkylbenzene having bromine numbers = 0.05 g Br deep 2/100 g of substance by feeding a portion of the benzene required for alkylation in the Kontaktoelstrom to be regenerated with aluminum.
Description
Titel der ErfindungTitle of the invention
Verfahren und Vorrichtung zur kontinuierlichen Alkylierung von Aromaten mit ChlorparaffinenProcess and apparatus for the continuous alkylation of aromatics with chloroparaffins
Anwendungsgebiet der ErfindungField of application of the invention
Die Erfindung betrifft ein Verfahren zur Herstellung von Alkylbenzen, das durch anschließende Sulfonierung und Neutralisation als waschaktive Substanz in Wasch-, Heinigungs- und Spülmitteln Verwendung findet»The invention relates to a process for the preparation of alkylbenzene, which is used by subsequent sulfonation and neutralization as a washing-active substance in detergents, cleaning agents and detergents »
Charakteristik der bekannten technischen LösungenCharacteristic of the known technical solutions
Der Stand der Technik wird in der DD-PS 99 559 dargestellt und durch das erfindungsgemäße Verfahren weiterentwickelt· Die nach diesem Verfahren hergestellten Alkylbenzene sind nur bedingt für eine SO -Sulfierung einsetzbar· Nachteilig wirken sich dabei Verbindungen aus» die im wesentlichen in der sogenannten Broiszahl erfaßt werden. Für eine SO.-Sulfierung sind Bromzahlen von weniger als 0»08 g BrVi00 g Substanz erforderlich. Übersteigen die Bromzahlen den genannten Wert, so wird eine Raffination der Alkylbenzene erforderlich·The prior art is shown in DD-PS 99 559 and further developed by the process according to the invention. The alkylbenzenes prepared by this process can only be used to a limited extent for an SO sulfation. The disadvantages here are compounds which are essentially in the so-called Brois number be detected. For SO.sub.3 sulfonation, bromine numbers of less than 0.8 g of BrVi.sub.00 g of substance are required. If the bromine numbers exceed the stated value, a refining of the alkylbenzene is required.
Ziel der ErfindungObject of the invention
Ziel der Erfindung ist es deshalb, das Verfahren so zu gestalten, daß eine Nachbehandlung des Alkylbenzens zur Absenkung der Bromzahl nicht erforderlich wird«The aim of the invention is therefore to design the process so that a post-treatment of the alkylbenzene to reduce the bromine number is not required «
-&MAI1983*ü87JbC- & MAI1983 * ü87JbC
Darlegung des Wesens der ErfindungExplanation of the essence of the invention
Es wurde gefunden, daß die Bildung von Verbindungen, die eine erhöhte Bromzahl verursachen, unterdrückt bzw. weitgehend zurückgedrängt wird, wenn bei der im DD-Patent 99 559 beschriebenen Aktivierung des Eontaktöls mittels metallischen Aluminiums zusammen mit dem Kontaktöl ain Teil des zur Alkylierung benötigten Benzens in den Rohrreaktor zur Aktivierung geleitet wird. /It has been found that the formation of compounds which cause an increased bromine number, is suppressed or largely suppressed, if in the described in DD patent 99 559 activation of Eontaktöls by metallic aluminum together with the contact oil ain part of the benzene required for alkylation is passed into the tubular reactor for activation. /
Ausführungsbeispielembodiment
Nach dem in der DD-PS 99 559 beschriebenen Verfahren werden 2000 kg/h des Kontaktöls in einem der mit metallischem Aluminium gefüllten Türme 12 zur Aktivierung eingeleitet. Das damit erzeugte Alkylbenzen weist Bromzahlen von durchschnittlich 0,14 g B 100 g Substanz auf.According to the method described in DD-PS 99 559 2000 kg / h of the contact oil in one of the metallic aluminum filled towers 12 are initiated for activation. The alkylbenzene thus produced has bromine numbers of on average 0.14 g B 100 g of substance.
Durch erfindungsgemäße Zugabe von 2000 kg/h Benzen vor den Türmen 12 wird bei gleichen Verhältnissen ein Alkylbenzen mit Bromzahlen von 0,05 g Br^/iOO g Substanz hergestellt. Das erzeugte Alkylbenzen entspricht in allen Kennzahlen den internationalen Anforderungen« Es ist ohne weitere Behandlung für SO -Sulfierungen einsetzbar·By adding, according to the invention, 2000 kg / h of benzene in front of the towers 12, an alkylbenzene with bromine numbers of 0.05 g of brine / 100 g of substance is prepared under the same conditions. The alkylbenzene produced corresponds to the international requirements in all key figures. It can be used without further treatment for SO sulfations.
_c μ η n ο α α φ η Q ·ί .) -:: r _c μ η n ο α α φ η Q · ί.) - :: r
Claims (2)
des zur Alkylierung 'benötigten Benzens zugemischt wird«1 · A process for the continuous alkylation of aromatics with chloroparaffinone according to DD-PS 99 559 », characterized in that the contact oil to be activated before entering aen filled with metallic aluminum Hohrreaktor a part
of the benzene required for alkylation 'is added
Verhältnis von Kontaktöl zu Benzen von 1 : 0,7 bis
1 J 2, vorzugsweise bei 1 : 1 liegt.2 «method according to item 1, characterized . that this
Ratio of contact oil to benzene of 1: 0.7 to
1 J 2, preferably 1: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD24712183A DD213428A2 (en) | 1972-10-26 | 1983-01-10 | METHOD AND DEVICE FOR THE CONTINUOUS ALKYLATION OF AROMATES WITH CHLOROPARAFFINS |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD16649272A DD99559A1 (en) | 1972-10-26 | 1972-10-26 | METHOD AND DEVICE FOR THE CONTINUOUS ALKYLATION OF AROMATES WITH CHLOROPARAFFINS |
| DD24712183A DD213428A2 (en) | 1972-10-26 | 1983-01-10 | METHOD AND DEVICE FOR THE CONTINUOUS ALKYLATION OF AROMATES WITH CHLOROPARAFFINS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DD213428A2 true DD213428A2 (en) | 1984-09-12 |
Family
ID=5488689
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DD16649272A DD99559A1 (en) | 1972-10-26 | 1972-10-26 | METHOD AND DEVICE FOR THE CONTINUOUS ALKYLATION OF AROMATES WITH CHLOROPARAFFINS |
| DD24712183A DD213428A2 (en) | 1972-10-26 | 1983-01-10 | METHOD AND DEVICE FOR THE CONTINUOUS ALKYLATION OF AROMATES WITH CHLOROPARAFFINS |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DD16649272A DD99559A1 (en) | 1972-10-26 | 1972-10-26 | METHOD AND DEVICE FOR THE CONTINUOUS ALKYLATION OF AROMATES WITH CHLOROPARAFFINS |
Country Status (1)
| Country | Link |
|---|---|
| DD (2) | DD99559A1 (en) |
-
1972
- 1972-10-26 DD DD16649272A patent/DD99559A1/en unknown
-
1983
- 1983-01-10 DD DD24712183A patent/DD213428A2/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DD99559A1 (en) | 1973-08-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RPI | Change in the person, name or address of the patentee (searches according to art. 11 and 12 extension act) | ||
| ENJ | Ceased due to non-payment of renewal fee |