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Preparation method for low-viscosity methyl soyate

A technology of oil methyl ester and low viscosity, applied in the field of preparation of low viscosity soybean oil methyl ester, can solve the problems of poor offset printing adhesion, smearing, affecting printing quality and efficiency, etc., so as to reduce VOC emission and speed up drying speed. , good solubility

Inactive Publication Date: 2014-12-17
中山市康和化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Soybean oil itself has a higher molecular weight and viscosity than mineral oil, so the penetration speed of soybean ink after printing is slow, which brings many problems such as poor adhesion, stickiness and smearing to offset printing, which affects printing quality and efficiency.

Method used

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  • Preparation method for low-viscosity methyl soyate
  • Preparation method for low-viscosity methyl soyate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Add 96 grams of soybean oil and 16 grams of methanol in a 250mL three-necked bottle equipped with a condenser, start the stirring device, heat up, add 0.48 grams of catalyst solid super acid SO 4 2- / SnO 2 , heat up to 60°C, start timing, after reaching the required reaction time of 50 minutes, the reaction is over, cool to room temperature, add 4.8 grams of saturated saline to the product to wash until it is clear and transparent, then pass it into a high-speed centrifuge and centrifuge at a speed of 1000rpm 15min, then remove the lower glycerin layer, soap and the remaining superacid or superbasic water phases, and the collected upper liquid phase is soybean oil methyl ester.

Embodiment 2

[0026] Add 96 grams of soybean oil and 24 grams of methanol in a 250mL three-necked bottle equipped with a condenser, start the stirring device, heat up, add 1.92 grams of catalyst solid super acid SO 4 2- / SnO 2 , the temperature was raised to 70°C, and the timing was started, and the reaction ended after reaching the required reaction time of 70 minutes. Cool to room temperature, add 24 grams of saturated saline to the product and wash until it is clear and transparent, then pass it into a high-speed centrifuge and centrifuge at a speed of 3000rpm for 40min, then remove the lower glycerol layer, soap and the remaining water phase such as super acid or super alkali , the collected upper liquid phase is soybean oil methyl ester.

Embodiment 3

[0028] Add 96 grams of soybean oil and 19 grams of methyl alcohol in the 250mL three-necked flask equipped with a condenser, start the stirring device, heat up, add 1.2 grams of catalyst solid super base MgO-SnO 2 , the temperature was raised to 67°C, and the timing was started. After reaching the required reaction time of 60 minutes, the reaction ended. Cool to room temperature, add 13 grams of saturated saline to the product and wash until it is clear and transparent, then pass it into a high-speed centrifuge and centrifuge at a speed of 2000rpm for 30min, then remove the lower glycerin layer, soap and the remaining superacid or superbasic water phase , the collected upper liquid phase is soybean oil methyl ester.

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Abstract

A disclosed preparation method for low-viscosity methyl soyate comprises the following steps: selecting soybean oil and methanol, mixing uniformly, under the catalytic effect of a solid superstrong acid or a solid superstrong alkali, enabling methanol and triglyceride in the soybean oil to have a transesterification reaction, after the reaction is finished, adding saturated salt water into the reaction product until the solution is clear and transparent, then employing a high-speed centrifuge for centrifuging, controlling the rotation speed to be 1000-3000 rpm and the centrifuging time to be 15-40 min during centrifuging, then removing the lower-layer water phase, and collecting the upper-layers product which is methyl soyate. The methyl soyate prepared by employing the method has the viscosity same to that of mineral oil, can be used as biodiesel and an industrial cleaning agent, is relatively good in effect when being applied to printing ink, and is free of pollution. The methyl soyate has the properties close to that of mineral oil, and when being applied to printing ink, the prepared methyl soyate is capable of reducing VOC discharge capacity and solving the disadvantages that soybean oil is slow in fixing speed and bad in dyeing effect.

Description

technical field [0001] The invention belongs to the technical field of soybean oil, and in particular relates to a preparation method of low-viscosity soybean oil methyl ester. Background technique [0002] Traditional printing inks are generally composed of binders, pigments and fillers, mineral oil, additives and other components. During the production and printing of inks, the working environment with high concentration of VOC (Volatile Organic Chemical) will cause harm to the health of operators . With the rapid deterioration of the global ecological environment pollution and the depletion of petroleum resources, it has become the consensus of the ink industry to look for substitutes for petroleum products, mineral oil. Substituting all or part of mineral oil with soybean oil, the soybean ink produced has become the mainstream and future development trend of green environmental protection ink in the world today. [0003] Although soybean ink has excellent environmental...

Claims

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Application Information

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IPC IPC(8): C11C3/10
CPCY02E50/10
Inventor 林跃华聂建华杨小艳刘兴高龙清平陈志国林秋云
Owner 中山市康和化工有限公司
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