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Preparation method of nitrocotton-based solid alcohol

A solid alcohol, nitrocellulose-based technology is applied in the field of preparation of nitrocellulose-based solid alcohol, which can solve the problems of short burning time and poor toughness of solid alcohol, and achieve the effects of low cost, stable quality and uniform composition.

Inactive Publication Date: 2021-03-26
SICHUAN NITROCELLULOSE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a preparation method of nitrocellulose-based solid alcohol, which solves the problems of short burning time and poor toughness of the solid alcohol prepared by the prior art, realizes the recycling of waste water produced by solidification, and reduces the preparation cost

Method used

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  • Preparation method of nitrocotton-based solid alcohol

Examples

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preparation example Construction

[0020] A kind of preparation method of nitrocellulose-based solid alcohol of the present invention, as figure 1 As shown, the specific steps are as follows:

[0021] Step 1, dissolving nitrocellulose: mix methanol with a mass concentration of 97% or more with nitrocellulose, let stand at room temperature for 30 to 120 minutes, then stir for 30 minutes to completely dissolve the nitrocellulose, and then add methanol with a mass concentration of 85% or more Methanol, stirred until completely dissolved again;

[0022] When dissolving for the first time, the mass ratio of nitrocellulose to methanol is 1:20;

[0023] When dissolving for the second time, the mass ratio of nitrocellulose to methanol is 1:30;

[0024] The viscosity of nitrocellulose is 500 seconds, which avoids the shortcomings of solid alcohol with too low viscosity, high hardness and poor toughness;

[0025] The water content of nitrocellulose is 25% to 35%, which reduces the cost compared with wine-containing ni...

Embodiment 1

[0031] Add 40 kg of methanol with a mass concentration of 97% in the stirred tank, add 2 kg of nitrocellulose (500 seconds) with a water content of 25% into the stirred tank, leave it for 30 min, and stir for 30 min to form a homogeneous solution, then add 95% of the mass concentration 20kg of methanol solution, stir until it is completely dissolved again; pour the dissolved homogeneous solution into a cylindrical permeable membrane to seal, stack and soak in water for 30 hours to solidify and form; take out the obtained cylindrical solid alcohol from the permeable membrane, slice The thickness is 2.5cm, and the sheet solid alcohol is packed into bags. The obtained solid alcohol was stored for 3 months without detaching, and 30 g of it was burned for 14.4 minutes in an open state, with no smoke and no peculiar smell, and the residue amount was 0.5%.

Embodiment 2

[0033] Add 40 kg of methanol with a mass concentration of 98% in the stirred tank, add 2 kg of nitrocellulose (500 seconds degree) with a water content of 30% into the stirred tank, leave it for 70 min, then stir for 30 min to form a homogeneous solution, then add 90% of the mass concentration 20kg of methanol solution, stir until it is completely dissolved again; pour the dissolved homogeneous solution into a cylindrical permeable membrane to seal, and once stacked and soaked in water for 20 hours to solidify and form; take out the obtained cylindrical solid alcohol from the permeable membrane and slice Thickness 2.0cm, flake solid alcohol packed into bags. The obtained solid alcohol was stored for 3 months without detaching, and 30 g of it was burned for 14.5 minutes in an open state, with no smoke and no peculiar smell, and the residue amount was 0.64%.

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Abstract

The invention discloses a preparation method of nitrocotton-based solid alcohol, and the method comprises the following steps of: mixing methanol with a mass concentration of 97% or above with nitrocotton, performing standing, conducting stirring for 30min to completely dissolve the nitrocotton, adding methanol with a mass concentration of 85% or above, and performing stirring until the mixture iscompletely dissolved again; pouring the product into a cylindrical permeable membrane, performing sealing, conducting soaking in water, and carrying out curing and forming; and taking out the obtained cylindrical solid alcohol from the permeable membrane, performing slicing, and packaging the flaky solid alcohol into bags. According to the method, heating is not needed, the volatilization amountof methanol in the preparation process is small, meanwhile, other chemical raw materials do not need to be added besides nitrocotton, methanol and water, water adopted for soaking is recycled, zero emission is achieved, the cost is low, and the production method is simple. The solid alcohol prepared by the method has the advantages of stable quality, uniform components, long combustion time, no smoke or peculiar smell, long-term sealed storage and no slurry separation.

Description

technical field [0001] The invention belongs to the technical field of solid fuel preparation, and in particular relates to a preparation method of nitrocellulose-based solid alcohol. Background technique [0002] Solid alcohol belongs to solid fuel. It is a solid fuel prepared by adding a curing agent to liquid fuel. It solves the shortcomings of liquid fuels such as difficulty in carrying and low safety in use. It has been widely used in catering services such as hotels, homes, and restaurants. Solid alcohol is also an ideal fuel for field operations such as geology and troops because it is easy to carry and safe and hygienic to use. Solid alcohol is mostly prepared by using industrial alcohol (low-carbon alcohols such as methanol and ethanol) as the main raw material and adding curing agents, stabilizers and modifiers. Common curing agents include paraffin, calcium acetate, stearic acid and sodium hydroxide, organic cellulose products, high molecular polymers, etc. Howe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L7/04
CPCC10L7/04C10L2290/24C10L2290/28C10L2290/32
Inventor 张仁旭阳洪袁满孟先利夏晓玉
Owner SICHUAN NITROCELLULOSE CORP
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