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Method for producing alkylated cyclopentadiene tricarbonyl manganese

A technology of cyclopentadiene manganese tricarbonyl and production method, which is applied in the production field of alkylated cyclopentadiene manganese tricarbonyl, and can solve the problems of multi-equipment and cost

Inactive Publication Date: 2008-04-23
AFTON CHEM CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Removal of CMT by-products requires more equipment and expense

Method used

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  • Method for producing alkylated cyclopentadiene tricarbonyl manganese
  • Method for producing alkylated cyclopentadiene tricarbonyl manganese

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Select a 6-liter reaction kettle equipped with a stirring device and a medium heating jacket, and react in the kettle.

[0023] (2) The reaction kettle was first purged with inert gas CO, and 3.3 liters of tetrahydrofuran and 253 grams of sodium metal were added, and they were suspended in tetrahydrogen medium. Repeat flushing with inert gas.

[0024] (3) Start stirring slowly (solid phase, liquid phase stirring speed in the reaction medium is 0.01 m / s), under the condition of less than temperature 10 ℃, add 780 grams of methylcyclopentadiene, when stop decomposing hydrogen, prove The reaction process is terminated and sodium methylcyclopentadiene is generated.

[0025] (4) At room temperature, add 7000 grams of manganese chloride and 10.3 grams (0.1 moles) of iron dicarbonyl sulfide mixture in the solvent tetrahydrofuran in a suspended state, stir, heat to 60 ° C, and then add CO to the reactor to make It is pressurized to 80 atmospheric pressure. Raise the temp...

Embodiment 2

[0029] According to the ASTM D2699 international standard, the ASTM-CFR test engine was used to test the mixture of methylcyclopentadiene manganese tricarbonyl (MMT) and cyclopentadiene manganese tricarbonyl (CMT) in different proportions. At the same level of manganese content, the effect of different mixtures on the burning octane number of regular unleaded gasoline (Regular Unleaded Gasoline, RUL) was recorded.

[0030] figure 1 The effect of MMT / CMT mixtures mixed in different ratios at each manganese addition level (Treat Rate) on the octane number (Octane Number) is shown. figure 2 The effect of different ratios of MMT / CMT blends at each level of manganese addition on the Delta Octane Number is shown relative to the base fuel without any antiknock addition. As shown, a mixture containing approximately 10% CMT and approximately 90% MMT produced an unexpected synergistic effect at an addition level of 8 mg Mn / L with an octane change of 1.4 ( figure 2 ). This represent...

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Abstract

The present invention relates to synthesis process of organic metal compound, and is especially process of producing alkylated methyl cyclopentadienyl tricarbonyl manganese, which is applied as the antiknock additive for engine fuel.

Description

technical field [0001] The invention relates to a method for producing alkylated cyclopentadiene manganese tricarbonyl. Specifically, it relates to a synthesis process of metal organic compounds, especially a method for producing methylated cyclopentadiene manganese tricarbonyl. Alkylated cyclopentadienyl manganese tricarbonyl is an antiknock additive for motor fuels. Background technique [0002] Alkylated cyclopentadiene manganese tricarbonyl is an anti-knock additive, and methyl cyclopentadiene manganese tricarbonyl (MMT) is the most widely used. The registered Chinese patent No. 97122153 discloses a method for producing cyclopentadiene manganese tricarbonyl. But the cyclopentadienyl manganese tricarbonyl produced by this method is a crystalline salt. It is difficult to use crystal salt in liquid antiknock additives, and its dissolution in solvent is a problem that must be solved in the process. [0003] In addition, in the process of producing alkylated cyclopentadie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F17/00C07F13/00
Inventor 林诗健
Owner AFTON CHEM CHINA