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Method for synthesizing methyl cyclopentadienyl manganese tricarbonyl

A technology of methylcyclopentadiene manganese tricarbonyl and methylcyclopentadienyl sodium, which is applied in the synthesis field of gasoline octane number additive methylcyclopentadiene manganese tricarbonyl (MMT), can solve the problem of output The problems of low rate, slow reaction speed and high production cost can achieve the effect of low cost, low production cost and production cost saving.

Inactive Publication Date: 2014-02-12
LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this method reaction speed is slow, and production cost is high, and the output rate of methylcyclopentadiene manganese tricarbonyl (MMT) is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The synthetic method of methylcyclopentadiene manganese tricarbonyl is implemented in the following steps.

[0023] (1) Add 138 grams of sodium metal and 500 grams of methylcyclopentadiene to an autoclave containing 3000 milliliters of aliphatic hydrocarbon and aromatic hydrocarbon mixture, stir and react at a temperature of about 230 ° C for about 4 hours to form formazan Cyclopentadienyl Sodium.

[0024] (2) Methylcyclopentadienyl sodium and manganese chloride are added to the autoclave at a molar ratio of 1:1.2, and reacted under the condition of feeding carbon monoxide to obtain methylcyclopentadienyl manganese tricarbonyl (MMT ). The reaction temperature is 130° C., and the reaction pressure is 7 MPa. The reaction time is about 7 hours, and the pressure of carbon monoxide in the autoclave is no longer reduced as the reaction end point. After the reaction is over, cool down, exhaust, and unload. Hydrolyzed with 10% HCl, the same volume of pentane was added to ex...

Embodiment 2

[0026] The synthetic method of methylcyclopentadiene manganese tricarbonyl is implemented in the following steps.

[0027] (1) Add 138 grams of sodium metal and 500 grams of methylcyclopentadiene to an autoclave containing 3000 milliliters of aliphatic hydrocarbon and aromatic hydrocarbon mixture, stir and react at a temperature of about 220 ° C for about 5 hours to form formazan Cyclopentadienyl Sodium.

[0028] (2) Add methylcyclopentadienyl sodium and manganese sulfate in a molar ratio of 1:1.2 into the autoclave, and react under the condition of feeding carbon monoxide to obtain methylcyclopentadienyl manganese tricarbonyl (MMT) . The reaction temperature is 150° C., and the reaction pressure is 8 MPa. The reaction time is about 7 hours, and the pressure of carbon monoxide in the autoclave is no longer reduced as the reaction end point. After the reaction is over, cool down, exhaust, and unload. Hydrolyzed with 10% HCl, the same volume of pentane was added to extract M...

Embodiment 3

[0030] The synthetic method of methylcyclopentadiene manganese tricarbonyl is implemented in the following steps.

[0031] (1) Add 138 grams of sodium metal and 500 grams of methylcyclopentadiene to an autoclave containing 3000 milliliters of aliphatic hydrocarbon and aromatic hydrocarbon mixture, stir and react at a temperature of about 230 ° C for about 4 hours to form formazan Cyclopentadienyl Sodium.

[0032] (2) Add methylcyclopentadienyl sodium and manganese acetate in a molar ratio of 1:1.2 into the autoclave, and react under the condition of feeding carbon monoxide to obtain methylcyclopentadienyl manganese tricarbonyl (MMT) . The reaction temperature is 180° C., and the reaction pressure is 8 MPa. The reaction time is about 8 hours, and the pressure of carbon monoxide in the autoclave is no longer reduced as the reaction end point. After the reaction is over, cool down, exhaust, and unload. Hydrolyzed with 10% HCl, the same volume of pentane was added to extract M...

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Abstract

The invention belongs to the field of gasoline octane additives and in particular relates to a method for synthesizing methyl cyclopentadienyl manganese tricarbonyl. The method comprises the following steps: (1) adding metal sodium and methyl cyclopentadiene into a high-pressure reaction kettle with an aliphatic hydrocarbon and aromatic hydrocarbon mixture, and stirring for reaction to generate methyl cyclopentadienyl sodium; (2) adding methyl cyclopentadienyl sodium and manganese salt into the high-pressure reaction kettle, and filling carbon monoxide for reaction to obtain a target product, wherein the manganese salt is one or a mixture of two and more of manganese chloride, manganese bromide, manganese sulfate, manganese nitrate and manganese acetate; the aliphatic hydrocarbon and aromatic hydrocarbon mixture is a petroleum fraction; in the step (2), the reaction temperature is 40-230 DEG C, the reaction pressure is 5-10 MPa, the reaction time is 6-8 hours, and the molar ratio of methyl cyclopentadienyl sodium to the manganese salt is 1 to 1.2. The method is simple in process, low in production cost and high in target product yield.

Description

technical field [0001] The invention belongs to the field of gasoline octane number additives, in particular to a synthesis method of gasoline octane number additive methylcyclopentadiene manganese tricarbonyl (MMT) in petroleum industry production. Background technique [0002] Improving the octane number of gasoline in our country is a very important research topic at present. Among various additives for increasing the octane number of gasoline, although some additives such as tetraethyl lead have a more obvious effect of increasing the octane number of gasoline, they have been banned due to their serious pollution to the environment. In order to make up for the decrease in octane number caused by unleaded gasoline, many new antiknock agents have been developed, including oxygen-containing compounds represented by MTBE, malonate, TKC additives, dimethyl carbonate, methyl Cyclopentadiene manganese tricarbonyl (MMT), etc. Their structures are different, and their anti-knoc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F17/00
Inventor 姜虎生张强张洪林李长波邱峰赵国峥
Owner LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY