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Liquefied petroleum gas welding fuel gas additives and method for preparing same

A technology of liquefied petroleum gas and additives, which is applied in the petroleum industry, gas fuel, fuel and other directions, can solve the problems of inability to weld, uneven quality, low temperature, etc., and achieves high combustion temperature and combustion speed, simple preparation process, and improved combustion properties. Effect

Inactive Publication Date: 2008-10-22
大庆金星燃气股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a gas for welding and cutting, the combustion temperature of liquefied petroleum gas is lower than that of acetylene, and the combustion temperature in oxygen is 2000-2850 ° C. When used for gas cutting, the metal preheating time is long, and it is difficult to cut thick materials. not for welding
Due to its low temperature and many problems in use, it is difficult to directly replace acetylene gas; in order to change its combustion properties, many additives have been developed, but the good and bad are mixed, and most of the effects are not ideal.

Method used

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  • Liquefied petroleum gas welding fuel gas additives and method for preparing same

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Effect test

Embodiment 1

[0021] The liquefied petroleum gas welding and cutting fuel gas additive of the present invention is to put 20-60 parts of petroleum ether solvent into the stirring tank in parts by weight at normal temperature, and add 2-9 parts of solute organic peroxide, methylcyclopentyl Diene manganese tricarbonyl 2 to 9 parts, dicyclopentadienyl iron [(C 5 h 5 ) 2 f e 】0.5-5 parts, ethanol 10-35 parts, benzyl alcohol 4-15 parts, benzene 14-35 parts, stir evenly, and then discharge.

Embodiment 2

[0023] The liquefied petroleum gas welding and cutting fuel gas additive of the present invention is to drop 35 to 50 parts of petroleum ether solvents into the stirring tank in parts by weight at normal temperature, and add 4 to 7 parts of solute diacetone alcohol peroxide, methyl cyclo Pentadiene manganese tricarbonyl 4 to 7 parts, dicyclopentadienyl iron [(C 5 h 5 ) 2 f e 】1~3 parts, 15~30 parts of ethanol, 6~12 parts of benzyl alcohol, 16~25 parts of benzene, stir evenly, and then discharge.

Embodiment 3

[0025] The liquefied petroleum gas welding and cutting gas additive of the present invention is to put 39-43 parts of petroleum ether solvent into the stirring tank according to the parts by weight at normal temperature, and add 5-6 parts of solute organic peroxide, methylcyclopentadiene 5-6 parts of manganese tricarbonyl, dicyclopentadiene nickel [(C 5 h 5 ) 2 Ni] 1.5-2 parts, ethanol 18-22 parts, benzyl alcohol 7-10 parts, benzene 18-23 parts, stir evenly, and then discharge.

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Abstract

The invention provides a combustion gas addition agent for welding with liquefied petroleum gas, as well as the process for preparing the addition agent, which comprises mixing organic peroxides 2-9%, methyl cyclopentadiene manganese tricarbonyl 2-9%, iron or nickel sandwich compound 0.5-5%, ethanol 10-35%, benzyl alcohol 4-15%, benzene 14-35% and petroleum benzene 20-60%.

Description

technical field [0001] The invention belongs to an additive and a preparation method, in particular to a liquefied petroleum gas welding and cutting gas additive and a preparation method. Background technique [0002] Acetylene has been a monopoly in the field of welding and cutting gas for hundreds of years. However, due to the high energy consumption in the production process of acetylene gas, it pollutes the environment and is easy to explode. The safety factor is low, and there are many shortcomings in storage, transportation and use. Many countries are developing new energy-saving and safe industrial gas to replace acetylene gas. [0003] At present, the following industrial gases are used to replace acetylene gas for metal welding and cutting: HO, SHARPGAS, FLAMEXGAS, Telly gas (Ollie gas), Jinhuo gas , propane gas and ordinary liquefied petroleum gas, etc., which are mixed with various gases or added with additives, but due to performance, quality, complex production...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L3/12
Inventor 赵辉安然张长弓赵玉文赵宇赵亮
Owner 大庆金星燃气股份有限公司
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