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Use of quaternized alkylamines as additives in fuels and lubricants

A technology of quaternizing reagents and quaternizing nitrogen, which is applied in the direction of fuel additives, additives, fuels, etc., and can solve problems such as insufficient activity, no residue-free combustion, and incomplete reaction conditions for quaternization

Active Publication Date: 2017-04-05
BASF SE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, the quaternizing agents used preferably in WO 2006 / 135881 have serious disadvantages such as: toxicity or carcinogenicity (e.g. in the case of dimethyl sulfate and benzyl halides), no residue-free combustion (e.g. in the case of dimethyl sulfate and alkyl halides), and insufficient activity, which can lead to incomplete quaternization or uneconomical reaction conditions (long reaction time, high reaction temperature, excess of quaternizing agent; e.g. in case of methyl ester)

Method used

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  • Use of quaternized alkylamines as additives in fuels and lubricants
  • Use of quaternized alkylamines as additives in fuels and lubricants
  • Use of quaternized alkylamines as additives in fuels and lubricants

Examples

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preparation example Construction

[0107] A5) preparation of additive of the present invention:

[0108] a) Quaternization

[0109] The quaternization is carried out in a manner known per se.

[0110] (1) For quaternization, a tertiary amine is mixed with at least one compound of formula 1 or 2 above, especially in a stoichiometric amount to achieve the desired quaternization. For example, 0.1 to 5.0, 0.2 to 3.0, or 0.5 to 2.5 equivalents of quaternizing agent may be used per equivalent of quaternizable tertiary nitrogen atoms. More specifically, however, in order to completely quaternize the tertiary amine groups, about 1 to 2 equivalents of the quaternizing agent are used relative to the amount of tertiary amine.

[0111] Typical operating temperatures here are in the range of 50 to 180°C, eg 90 to 160°C, or 100 to 140°C. The reaction time can be several minutes or several hours, for example about 10 minutes up to about 24 hours. The reaction can be carried out at a pressure of about 0.1 to 20 bar, for ex...

preparation example 1

[0293] Preparation Example 1: Synthesis of N,N-dimethyl-N,N-ditallowyl ammonium oxalate methyl ester based on EP 2 033 945

[0294] N-Methyl-N,N-ditallowylamine (90 g) was mixed with dimethyl oxalate (90 g) and lauric acid (1.8 g). The reaction mixture was heated to 120 °C and stirred at this temperature for 4 h. Subsequently, excess dimethyl oxalate was removed under reduced pressure at 130° C. by means of a rotary evaporator. 110.8 g of a white waxy product are obtained. 1 H NMR (CDCl 3 ) confirms the quaternization reaction.

preparation example 2

[0295] Preparation Example 2: N,N-Dimethyl-N,N-Ditallow Ammonium Salicylate

[0296] N-Methyl-N,N-ditallowylamine (80 g) was mixed with methyl salicylate (45.4 g) and 3,5,5-trimethylhexanoic acid (0.8 g). The reaction mixture was heated to 160 °C and stirred at this temperature for 4 h. After cooling to room temperature, 124 g of a white waxy product are obtained. 1 H NMR (CDCl 3 ) confirms the quaternization reaction.

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Abstract

The present invention relates to the use of quaternized alkylamine nitrogen compounds as fuel additives and lubricant additives, such as, in particular, as decontamination additives; in order to reduce or prevent injection systems, especially common rail injection systems, of direct injection diesel In order to reduce the fuel consumption of direct injection diesel engines, especially diesel engines with common rail injection systems, and to minimize the power loss of direct injection diesel engines, especially diesel engines with common rail injection systems and as an additive for the operation of gasoline fuels, especially for DISI engines.

Description

[0001] The present invention relates to the use of quaternized alkylamine nitrogen compounds as fuel additives and lubricant additives, such as, in particular, as decontamination additives; for reducing or preventing injection systems, especially common rail injection, of direct injection diesel engines Deposits in systems for reducing the fuel consumption of direct-injection diesel engines, especially diesel engines with common rail injection systems, and for increasing the performance of direct-injection diesel engines, especially diesel engines with common rail injection systems loss minimization; and as an additive for the operation of gasoline fuels, especially for DISI engines. Background technique [0002] In a direct-injection diesel engine, the fuel is injected through a multi-hole injection nozzle and distributed (atomized) in an ultra-fine form, which reaches the engine's combustion chamber directly, rather than being introduced into the pre-combustion chamber as in ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M133/02C10M133/06C10M133/54C07C209/20C07C211/63C10L1/22C10L10/04C10L10/06C10N40/25C10N30/04C10N70/00
CPCC07C209/20C07C211/63C10M133/54C10L1/2222C10L10/06C10M133/02C10M133/06C10M2215/02C10M2215/04C10M2215/042C10M2215/26C10L1/14C10L10/18C10L2270/023C10L2270/026C10N2030/04C10N2030/54C10N2040/252C10N2040/255C10N2070/02Y02T10/12
Inventor M·汉施H·博恩克L·沃尔凯尔W·格雷巴斯J·斯特里特马特
Owner BASF SE