JP2903799B2 - Lighting fuel - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a fuel for lighting. The fuel of the present invention emits colored light and is used for interior decoration, etc.
Perform effective productions at parties and ceremonies.

[0002]

2. Description of the Related Art With the spread of electric lamps, lighting using liquid fuel such as kerosene is used for ceremonies such as wedding ceremonies, decorations in homes, hotels, restaurants, etc., or camps. It has become necessary for specific applications as outdoor equipment. Kerosene (kerosene) has been used as a fuel for lighting. Kerosene is a slightly volatile hydrocarbon that burns and exhibits high brightness, but only emits white light.

[0003] Conventionally, as a lighting fuel that emits colored light, a fuel obtained by mixing an alkali metal, an alkaline earth metal, boron, or the like with a linear alcohol such as methanol or ethanol is known. Such fuels using methanol or ethanol burn with a unique color flame, but do not have sufficient brightness and are very flammable and dangerous. Also,
Strong odor when burning. Further, when the fuel has a low boiling point and is used for a lamp, the distance from the fuel level to the flame is 4c.
If it exceeds about m, it evaporates on the way and the flame becomes smaller. In the case of a lamp, the liquid level and the position of the flame are usually used at about 4 to 7 cm, and a certain amount of liquid needs to reach a flame part through a core. If the fuel has three or more carbon atoms in the alcohol, the color of the normal flame will prevail and a colored flame cannot be obtained as a whole.

[0004] It is an object of the present invention to provide a fuel which provides a bright colored flame and which has a sufficient rise of fuel through the wick. Another object of the present invention is to provide a fuel for lighting which has a high boiling point, is hardly flammable, has excellent safety, and has a low odor.

[0005]

As a result of various studies on the above-mentioned problems, the present inventor has found that when a predetermined metal element is used in combination with dipropylene, diethylene glycol monoalkyl ether or dibutylene glycol monoalkyl ether. The present invention has been completed based on the finding that an excellent colored lamp can be obtained.

The present invention provides an esterified product of at least one alcohol selected from diethylene glycol monoalkyl ether, dipropylene glycol monoalkyl ether and dibutylene glycol monoalkyl ether, with boric acid or boric anhydride; An object of the present invention is to provide a lighting fuel containing at least one alcohol selected from the same or different diethylene glycol monoalkyl ethers, dipropylene glycol monoalkyl ethers and dibutylene glycol monoalkyl ethers.

[0007] The present invention also relates to at least one metal selected from alkali metals and alkaline earth metals or a compound thereof, and diethylene glycol monoalkyl ether, dipropylene glycol monoalkyl ether and dibutylene glycol monoalkyl ether. Further, the present invention provides a lighting fuel containing at least one alcohol.

The "alkyl" of diethylene glycol monoalkyl ether, dipropylene glycol monoalkyl ether and dibutylene glycol monoalkyl ether is preferably methyl, ethyl and propyl, especially methyl and ethyl. If it has more carbon atoms than propyl ether, it will be a normal flame.

Therefore, as the diethylene glycol monoalkyl ether, specifically, diethylene glycol monomethyl ether, diethylene glycol monoethyl ether and the like are preferable. As the dipropylene glycol monoalkyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether, and the like are preferable.

The ratio between the total number of oxygen atoms and the number of carbon atoms in the solvent is preferably C / O = 2/1 or less. If the number of carbon atoms is larger than this, the color of the flame becomes normal, and a colored flame cannot be obtained.

These alcohols are converted to boric acid (H ₃ B
An esterification reaction is performed with O ₃ ) or boric anhydride (boron oxide: B ₂ O ₃ ) to obtain an ester compound. In order to produce these ester compounds, the following reaction occurs by using 6 to 10 moles of alcohol per 1 mole of boric acid or boric anhydride.

3 ROCH_TwoCH_TwoOCH_TwoCH_TwoOH + B_TwoO_Three ← → (ROCH_TwoCH_TwoOCH_TwoCH_TwoO)_ThreeB + H_ThreeBO_Three  H_ThreeBO_Three+3 R'OCH_TwoCH_TwoOCH_TwoCH_TwoOH ← → (R'OCH_TwoCH_TwoOCH_TwoCH_TwoO)_ThreeB + 3H_TwoO The esterification reaction involves the reaction of boric acid or anhydrous boric acid in alcohol.
Add uric acid and stir at 110-140 ° C for 2-4 hours.
U. The generated water is removed by distillation.

Next, diethylene glycol monoalkyl ether or dipropylene glycol monoalkyl ether which is the same as or different from the alcohol used for the esterification is mixed with the ester compound. The mixing ratio of these alcohols is 1 to 5 parts by weight of the ester compound.
It is preferably 10 parts by weight.

The fuel obtained has a high brightness and a flash point of 100
１０５105 ° C., odorless. When ignited, it emits a unique green light. Further, a polyhydric alcohol such as glycerin may be mixed for adjusting the size of the flame.

According to another aspect of the present invention, there is provided a lighting fuel in which at least one of an alkali metal and an alkaline earth metal or a metal compound is dissolved in at least one of the above-mentioned diethylene glycol monoalkyl ether and dipropylene glycol monoalkyl ether. Or disperse. All or some of these metals may be alcoholates.

The alkali metal is sodium,
Potassium, lithium, cesium and the like can be mentioned, and examples of the compound include NaCl, LiCl, KCl, CeCl and the like. In addition, calcium as the alkaline earth metal,
Examples include strontium and barium, and examples of the compound include CaCl ₂ and SrCl ₂ . It emits red light when lithium, calcium and strontium are mixed, yellow when sodium is mixed, purple when compounded with potassium and cesium, and green when mixed with barium.

The amount of addition of these metals is calculated based on the amount of the added element and is 0.1% based on 100 parts by weight of alcohol as a solvent.
It is preferably from 1 to 2 parts by weight. These metals and metal compounds are preferably added to alcohols and dissolved by heating.

In the lighting fuel of the present invention, the flame 8
The area of 0 to 95% becomes a colored flame, and the distance from the fuel level to the flame can be made 10 cm.

[0019]

Next, the present invention will be described more specifically based on examples. In the examples, "%" means "% by weight".

Example 1 69.6 g of B ₂ O _{3 was} added to 960 g (8 mol) of dipropylene glycol monomethyl ether.
(1 mol) were mixed and heated and stirred at 120 ° C. The residual amount of diethylene glycol monomethyl ether was measured over time by gas chromatography, and the point at which the residual amount became equilibrium after 2 hours was defined as the end point of the reaction. Water was removed by distillation from the start of heating, and after completion of the reaction, distillation was further performed for 2 hours to reduce the water content to 1.0% or less (Karl Fischer method). 10 g of the obtained diethylene glycol monomethyl ether borate was mixed with 90 g of diethylene glycol monomethyl ether to prepare a fuel for lighting. When this was used as a lamp fuel and burned, a green flame was obtained.

Example 2 69.6 g of B ₂ O _{3 was} added to 1072 g (8 mol) of diethylene glycol monoethyl ether.
(1 mol) and heated and stirred at 120 ° C. for 2 hours.
At the end of the reaction, water was distilled off at 110 to 120 ° C. 10 g of the obtained diethylene glycol monoethyl ether borate was mixed with 90 g of diethylene glycol monomethyl ether to prepare a fuel for lighting. When this was burned using a lamp fixture, green light was obtained.

Example 3 A fuel for lighting was prepared by adding 2 g of sodium chloride to 100 g of dipropylene glycol monoethyl ether and heating at 110 ° C. for 1 hour. When this was burned with a lamp, a red flame was obtained.

Example 4 2 g of calcium chloride was added to 100 g of diethylene glycol monoethyl ether to obtain 1
The mixture was heated and mixed at 10 ° C. for 1 hour to prepare a lighting fuel. When this was burned with a lamp, a purple flame was obtained.

Example 5 1 g of cesium chloride was added to 100 g of diethylene glycol monomethyl ether, and
The mixture was heated and mixed at 1 ° C. for 1 hour to prepare a fuel for lighting. When this was burned with a lamp, a purple flame was obtained.

Example 6 1 g of lithium chloride was added to 100 g of diethylene glycol monomethyl ether, and
The mixture was heated and melted at 1 ° C. for 1 hour to prepare a fuel for lighting. When this was burned with a lamp, a red flame was obtained.

[0026]

According to the fuel for lighting of the present invention, a bright colored flame is obtained, and the fuel passing through the wick rises to a sufficient height. In addition, this lighting fuel has a high boiling point, is difficult to catch fire, is excellent in safety, and has little odor.

Claims (2)

(57) [Claims] 1. An esterified product of at least one alcohol selected from diethylene glycol monoalkyl ether, dipropylene glycol monoalkyl ether and dibutylene glycol monoalkyl ether with boric acid or boric anhydride; A lighting fuel comprising at least one alcohol selected from different diethylene glycol monoalkyl ethers, dipropylene glycol monoalkyl ethers and dibutylene glycol monoalkyl ethers. 2. At least one metal selected from alkali metals and alkaline earth metals or compounds thereof, and at least one metal selected from diethylene glycol monoalkyl ether, dipropylene glycol monoalkyl ether and dibutylene glycol monoalkyl ether. Lighting fuel containing alcohol.