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Hydrolytic treatment method for high value-added saponin and oil residues
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A treatment method and high value-added technology, which is applied to the recovery of fat oil/fatty acid from waste materials, recycling technology, and fat generation. It can solve problems such as inability to decompose, low added value, and increased costs, so as to improve product revenue and production. The effect of high efficiency and cost reduction
Active Publication Date: 2015-04-15
沧州辰润生物科技有限公司
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[0003] At present, the acidification method is generally adopted for the pretreatment of oil horns and saponins, that is, acidification treatment is carried out with 7-10% concentrated sulfuric acid. Large pollution is produced, the treated water is black, and the pH is about 2-3. The water must be treated before it can be discharged. The water treatment is about 240-380 yuan / ton, which greatly increases the cost of the process.
Second, due to the addition of acid, the solid phase substance in it is carbide, which cannot be reused and cannot be decomposed, causing pollution
Three, the acid value of the oil phase produced is low, only 110-120, and the subsequent added value is low
[0004] In recent years, in view of the shortcomings of the acidification method, some new processes have also been designed, such as solid-phase acid catalysis method (patent CN2010101167975.5), subcritical acetic acid method (CN201210340293.9), vacuum distillation method (CN201210064701.2) , enzymatic method (CN201310185942.7), but these methods all have disadvantages such as complicated process flow, difficult to obtain catalyst or high cost
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Embodiment 1
[0032] Step 1: Mixing materials, the materials include 100 parts by weight of saponin, 1 part by weight of sodium dodecyl sulfonate, 0.1 part by weight of 36% hydrochloric acid, 0.1 part by weight of 50% acetic acid, 0.8 part by weight of 90% sulfuric acid, water 50 parts by weight.
[0033] Step 2: hydrolysis reaction, put the uniformly mixed material obtained in step 1 into the hydrolysis kettle, heat to 210 ° C, pressurize to 20 PMa, and react at constant temperature and pressure for 3 hours;
[0034] Step 3: Separation of grease, put the material obtained in step 2 into a flash tank to separate the solid phase, the oil phase and the water phase.
[0035] Wherein the obtained solid phase substance is filtered and dried to obtain crude protein powder; the obtained crude protein powder is 5000 g, and the yield is 5%; It does not destroy the original components of the protein, so it can be used as feed-grade protein and raw materials for advanced organic fertilizers.
[0036...
Embodiment 2-5 and comparative example 1
[0038] Examples 2-5 and Comparative Example 1 Screening of anionic surfactants
[0039]The mixed materials of Examples 2-5 and Comparative Example 1 are shown in Table 1, and the technological process is the same as that of Example 1. The final products of each embodiment and comparative example 1 are shown in Table 2, wherein comparative example 1 is a process without adding surfactant. Due to the lack of surfactant, the quality and yield of each final product are greatly reduced. The addition of anionic surfactants is therefore necessary without any technical implications in the prior art. The addition of anionic surfactant has a slight influence on the yield and quality of the final product, among which the addition of sodium dodecyl sulfonate is the best.
[0040] Table 1 Examples 2-5 and Comparative Example 1
[0041]
[0042] Table 2 Product Analysis of Examples 2-5 and Comparative Example 1
[0043]
[0044] It can be seen from the above analysis that the metho...
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Abstract
The invention relates to the field of utilization of fatty acids and particularly relates to a hydrolytic treatment method for high value-added saponin and oil residues, which is used for separating a solid phase, oil grease and a water phase in high-acid-value oil grease. The hydrolytic treatment method comprises the following steps: step 1: mixing materials comprising following components in parts by weight: 100 parts of saponin and / or oil residues, 0.5-1.5 parts of anionic surfactant, 0.5-1.5 parts of acid and 40-50 parts of water; step 2: carrying out a hydrolysis reaction: putting the uniformly-mixed materials of the step 1 into a hydrolysis kettle; heating to 210-260 DEG C, pressurizing to 18-30MPa and keeping the pressure for 2-5 hours; and step 3: separating the oil grease: putting the materials obtained in the step 2 into a flashing tank to separate the solid phase, an oil phase and the water phase. The hydrolytic treatment method is simple in operation, low in cost and environment-friendly; after the treatment, a plurality of usable products can be obtained and the production gains are further improved.
Description
technical field [0001] The invention relates to the field of fatty acid utilization, in particular to a high value-added saponin oil angle hydrolysis treatment method for separating solid phase, oil and water phase in high acid value fat and oil. Background technique [0002] During the refining process of vegetable oil, a large amount of oil horns and saponins will be produced. Generally, the fatty content of oil horns is 20-40%, and the total fat content in saponins can reach 40-50%. For the recycling of oil angle and saponin, the current development is to prepare mixed fatty acid, oleic acid, stearic acid, epoxy plasticizer and biodiesel. For the reuse of oil angle and saponin, the step of pretreatment to generate acidified oil is necessary. [0003] At present, the acidification method is generally used for the pretreatment of oil angle and saponin, that is, acidification treatment with 7-10% concentrated sulfuric acid. This method has great drawbacks. Larger pollution...
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