Rice bran calcium cerotate soap wax and preparation method thereof

A technology of rice bran wax ester and rice bran wax, which is applied in the preparation of carboxylate, the preparation of carboxylate/lactone, and the preparation of carboxylic acid by oxidation, can solve problems such as supply stoppage, and achieve the effect of reducing production cost

Active Publication Date: 2018-06-22
重庆合才化工科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the technical problem that the existing Mengtan wax soap may be discontinued at any time due to the impact of resource depletion and greenhouse gas emission reduction, the present invention provides a preparation method of rice bran calcium cerate soap wax, and the prepared rice bran cerate calcium Soap wax contains non-polar fatty acid end and polar metal ion end, so that soap wax can play the role of internal and external lubrication in engineering plastics, so it can replace the Montan wax soap imported from Germany

Method used

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  • Rice bran calcium cerotate soap wax and preparation method thereof

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Effect test

Embodiment 1

[0020] The invention provides a method for preparing light-colored rice bran wax acid wax, comprising the following steps:

[0021] Deoiling: Put the deoiled and unbleached rice bran wax into a stainless steel reactor and soak it in ethyl acetate with a concentration of 99.7% for 4 hours, then open the valve under the stainless steel reactor to pump the ethyl acetate into the storage tank for distillation and recovery , the deoiled rice bran wax is heated to 90°C and melted, then cooled and sliced ​​for later use;

[0022] Oxidation: Put 600kg of sliced ​​rice bran wax and 2000ml of 50% dilute sulfuric acid into the enamel reaction kettle, heat to 90°C to melt the rice bran wax, then add 1900ml of 50% red alum sodium solution for oxidation, and keep the temperature at 90 ℃ and kept stirring for 6 hours, the color of rice bran wax changed from brown to light, cooled naturally, and allowed to stand for 1 hour to separate the wax and chromium slurry solution. Pump into another e...

Embodiment 2

[0027] The invention provides a method for preparing light-colored rice bran wax acid wax, comprising the following steps:

[0028] Deoiling: Put the deoiled and unbleached rice bran wax into a stainless steel reactor and soak it in ethyl acetate with a concentration of 99.7% for 4 hours, then open the valve under the stainless steel reactor to pump the ethyl acetate into the storage tank for distillation and recovery , the deoiled rice bran wax is heated to 95°C and melted, then cooled and sliced ​​for later use;

[0029] Oxidation: Put 650kg of sliced ​​rice bran wax and 2200ml of 50% dilute sulfuric acid into an enamelled reaction kettle, heat to 95°C to melt the rice bran wax, then add 2000ml of 50% red alum sodium solution for oxidation, and keep the temperature at 95 Stir continuously at ℃ for 6 hours, the color of rice bran wax changes from brown to light, cool naturally, let stand for 1.5 hours to separate the wax and chromium slurry solution, the chromium slurry in th...

Embodiment 3

[0034] The invention provides a method for preparing light-colored rice bran wax acid wax, comprising the following steps:

[0035] Deoiling: Put the deoiled and unbleached rice bran wax into a stainless steel reactor and soak it in ethyl acetate with a concentration of 99.7% for 4 hours, then open the valve under the stainless steel reactor to pump the ethyl acetate into the storage tank for distillation and recovery , the deoiled rice bran wax is heated to 100°C and melted, then cooled and sliced ​​for later use;

[0036] Oxidation: Put 550kg of sliced ​​rice bran wax and 1800ml of 50% dilute sulfuric acid into the enamel reaction kettle, heat to 100°C to melt the rice bran wax, then add 1800ml of 50% red alum sodium solution for oxidation, and keep the temperature at 100 Stir continuously at ℃ for 6 hours, the color of rice bran wax changes from brown to light, cool naturally, let stand for 2 hours to separate the wax and chromium slurry solution, the chromium slurry in the...

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Abstract

The invention provides a preparation method of a rice bran calcium cerotate soap wax. The preparation method comprises the following steps: deoiling, soaking the deoiled but undecolorized rice bran wax into ethyl acetate, heating to melt, cooling, and cutting into slices for later use; oxidizing, heating the sliced rice bran wax and dilute sulphuric acid together to melt the rice bran wax, addinga sodium bichromate solution, constantly stirring and oxidizing, heating the oxidized rice bran wax into a liquid, then adding the dilute sulphuric acid, stirring, standing, layering, stirring while adding water, raising the temperature until the wax is completely melted, continuing to stir, standing and layering to obtain the rice bran wax cerotate; esterifying, heating and melting the rice branwax cerotate, raising the temperature, adding a polyhydric alcohol to have esterification reaction to obtain rice bran cerotate ester wax; saponifying, heating and melting the rice bran cerotate esterwax, and adding a calcium hydroxide solution to implement partial saponification to obtain the rice bran calcium cerotate soap wax. The invention further provides the rice bran calcium cerotate soapwax. The preparation method provided by the application is low in production cost, and the product is harder and has the performances of high temperature resistance and high gloss, and can substitutemouton wax soap.

Description

technical field [0001] The invention relates to the technical field of new materials, in particular to a calcium rice bran cerate soap wax and a preparation method thereof. Background technique [0002] At present, there are rice bran wax saponification products that have not been oxidized to remove small molecules. This product has a darker color due to the presence of resins, gums, and pigments, and the saponification of unoxidized rice bran wax requires high temperature reactions, which will also cause the product Purity and color issues. Therefore, the rice bran wax saponification product produced by unoxidized rice bran wax can only be used to produce low-grade iron box shoe polish, while the high-grade product is mainly the Montan wax soap produced by German Clariant and Volpker companies, which can be used for Engineering plastics, electronic plastic packaging and thermal transfer printing inks and other fields. But the inventor of the present invention finds throug...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C27/02C07C53/126C07C67/28C07C69/28C07C69/003
CPCC07C29/095C07C51/09C07C51/16C07C53/126C07C67/08C07C67/28C07C69/003C07C69/28C07C31/02Y02W30/74
Inventor 邱三明邱汀远
Owner 重庆合才化工科技有限公司
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