Novel high-temperature reaction process and device for producing epoxidized soybean oil
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A technology of epoxidized soybean oil and high-temperature reaction, which is applied in the direction of organic chemistry, can solve the problems of product quality not meeting high requirements, long reaction time, side reactions, etc., achieves shortened dropping time, simple process, and improved reaction efficiency Effect
Pending Publication Date: 2019-02-12
NANTONG HAIERMA TECH CO LTD
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[0002] The traditional reaction process for the production of epoxidized soybean oil is divided into two stages: the first stage is the dropping stage: the dropping temperature is 51-58°C, and the dropping time is 8-11 hours; the second stage is the continuing reaction stage: The temperature is 68-82°C, and the reaction temperature is 10-12 hours; the reaction time is too long, resulting in too many side reactions in the reaction, and the product quality cannot meet the high requirements
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Embodiment 1
[0022] A novel high-temperature reaction process for producing epoxidized soybean oil is characterized in that: successively through the dripping stage and the continuing reaction stage, the concrete steps are as follows:
[0023] 1) Dropping stage: first fully mix formic acid and soybean oil, and then add hydrogen peroxide dropwise, the dropping temperature is 70-76°C, and the dropping time is 7 hours;
[0024] 2) Continue the reaction stage: firstly heat to 70°C, react for 5 hours, then continue to heat to 78°C, and react for 3 hours.
Embodiment 2
[0026] A novel high-temperature reaction process for producing epoxidized soybean oil is characterized in that: successively through the dripping stage and the continuing reaction stage, the concrete steps are as follows:
[0027] 1) Dropping stage: first fully mix formic acid and soybean oil, and then add hydrogen peroxide dropwise, the dropping temperature is 70-76°C, and the dropping time is 7 hours;
[0028] 2) Continue the reaction stage: firstly heat to 74°C, react for 5 hours, then continue to heat to 80°C, and react for 3 hours.
Embodiment 3
[0030] A novel high-temperature reaction process for producing epoxidized soybean oil is characterized in that: successively through the dripping stage and the continuing reaction stage, the concrete steps are as follows:
[0031] 1) Dropping stage: first fully mix formic acid and soybean oil, and then add hydrogen peroxide dropwise, the dropping temperature is 70-76°C, and the dropping time is 7 hours;
[0032] 2) Continue the reaction stage: firstly heat to 78°C, react for 5 hours, then continue to heat to 82°C, and react for 3 hours.
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Abstract
The invention discloses a novel high-temperature reaction process for producing epoxidized soybean oil. A dripping stage and a continuous reaction stage are sequentially performed. The process comprises the following concrete steps of (1) at the dripping stage, firstly, sufficiently mixing formic acid and soybean oil; then, dripping hydrogen peroxide into the mixture at the dripping temperature of70 to 76 DEG C, and the dripping time is 7 hours; at the continuous reaction stage, firstly heating the materials to 70 to 78 DEG C; performing reaction for 5 hours; then continuously performing heating to 78 to 82 DEG C; identically performing reaction for 3 hours. According to the reaction process and device disclosed by the invention, the work procedures are simple; the reaction efficiency ishigh. Compared with a conventional process, the hydrogen peroxide dripping time is shortened by 1 to 4 hours; the continuous reaction time is shortened by 2 to 4 hours. Under the condition of the samequality of the soybean oil, after the end of the dripping and the continuous reaction, the quality of the epoxidized soybean oil is higher than that of a conventional process.
Description
technical field [0001] The invention relates to the technical field of epoxy plasticizers, in particular to a novel high-temperature reaction process and device for producing epoxy soybean oil. Background technique [0002] The traditional reaction process for the production of epoxidized soybean oil is divided into two stages: the first stage is the dropping stage: the dropping temperature is 51-58°C, and the dropping time is 8-11 hours; the second stage is the continuing reaction stage: The temperature is 68-82°C, and the reaction temperature is 10-12 hours; the reaction time is too long, resulting in too many side reactions in the reaction, and the product quality cannot meet the high requirements. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a novel high-temperature reaction process for producing epoxidized soybean oil, which has higher reaction efficiency and better product quality. [0004] In order to ...
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