Method for preparing biodegradable composite plasticiser

A compound plasticizer and biodegradation technology, applied in the field of compound plasticizer preparation, can solve the problems of restricting the sustainable development of the industry, the inability of products to achieve biodegradation, eliminating social and environmental hidden dangers, etc., and achieving good economic benefits and The effect of social environmental protection, clean production process and low price

Active Publication Date: 2009-01-07
浙江嘉澳环保科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this plasticizer product also has serious problems: one is that the technical index of the existing epoxy soybean oil product in my country is low, and there are various defects in product performance, which cannot completely replace adjacent Phthalate and terephthalate plasticizer products can only be replaced by a small part, and cannot fundamentally eliminate social and environmental hazards; secondly, due to the excessive reliance on the use of stabilizers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0031] Example one

[0032] After mixing crude products of various vegetable oils, the temperature is controlled at 20°C and normal temperature, and stirred for 2 hours to control the key indicators of iodine value at 120, viscosity at 330mpa.s, and acid value at 1.1. Add 0.5% industrial grade phosphoric acid with a mixed vegetable fat mass fraction, add a sodium hydroxide solution with a 5% Booster degree of 15°Bé and a mixed vegetable fat mass fraction of 5%, stir and mix thoroughly, and then stand for stratification, and separate the upper layer of oil. Add to the high-efficiency reactor, add 65% oil mass fraction and 35% hydrogen peroxide solution, heat the reactant, when the temperature reaches 60℃, add dropwise industrial formic acid with 10% oil mass fraction and 90% concentration. The reaction temperature is controlled at 50°C, and the oxygen molecules provided by hydrogen peroxide are fully bonded to the unsaturated bonds of unsaturated fatty acid glycerides under the pre...

Example Embodiment

[0033] Example two

[0034]After mixing crude products of various vegetable oils, the temperature is controlled at 24°C and normal temperature, and stirred for 2 hours to control the key indicators of iodine value at 100, viscosity at 300mpa.s, and acid value at 1.0. Add industrial grade phosphoric acid with 0.05% mixed vegetable oil and 4% potassium hydroxide with a Baume degree of 15°Bé with 4% mixed vegetable oil, stir and mix thoroughly, and then separate the upper layer of oil. Add to the high-efficiency reactor, add 55% oil mass fraction, 50% concentration of hydrogen peroxide, heat the reactant, when the temperature reaches 65℃, then dropwise add 15% oil mass fraction, 85% concentration of industrial formic acid The reaction temperature is controlled at 60°C, and the oxygen molecules provided by hydrogen peroxide are fully bonded to the unsaturated bonds of unsaturated fatty acid glycerides under the pressure of 0.8 MPa. The reaction is carried out for about 4 hours under h...

Example Embodiment

[0035] Example three

[0036] After mixing crude products of various vegetable oils, the temperature is controlled at 27°C and normal temperature, and stirred for 3 hours to control the key indicators of iodine value at 130, viscosity at about 330mpa.s, and acid value at 0.5. Add industrial grade phosphoric acid with a mass fraction of mixed vegetable oil of 0.02%, add a calcium hydroxide solution with a mass fraction of 3% vegetable oil and a Baume degree of 15°Bé, stir and mix thoroughly, and then stand for stratification to separate the upper layer of oil. Add to the high-efficiency reactor, add 70% oil mass fraction and 50% hydrogen peroxide solution, heat the reactants, when the temperature reaches 55℃, then dropwise add 7% oil mass fraction and 85% industrial formic acid with a concentration of 85% The reaction temperature is controlled at 50°C, and the oxygen molecules provided by hydrogen peroxide are fully bonded to the unsaturated bonds of the unsaturated fatty acid glyc...

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Abstract

The invention discloses a preparation process for a compound plasticizer, in particular to a preparation method for a compound plasticizer by utilizing the biodegradation. The invention uses the primary products of renewable and biodegradable vegetable oil as the raw materials, the raw materials are stirred under the condition of the temperature being controlled between 0 and 50 DEG C, the iodine value of the mixed vegetable oil is controlled between 100 and 150 through different preparation portions of different vegetable oil, the viscosity is controlled between 250MPa.s and 380MPa.s, the acid value is controlled below 2.0, and compound materials are prepared; the compound materials are added with phosphoric acid, alkali, etc, and finally are treated by hydrogen peroxide, formaldehyde, etc. to obtain the product. The preparation method has the advantages of clean and environment-friendly production process, non-toxicity and biodegradability of the product, no harm to the environment and good performance of the product. The preparation method can be widely used in various occasions with vegetable oil.

Description

technical field [0001] The invention relates to a preparation process of a composite plasticizer, in particular to a preparation method utilizing a biodegradable composite plasticizer. technical background [0002] Although phthalates and terephthalates plasticizers have occupied a majority position in the market for a long time, due to the serious social and environmental hazards of these products and the constraints of non-renewable raw materials and high cost prices, It will eventually be replaced by new environmentally friendly and renewable plasticizers. Since the 1990s, there have been non-toxic plasticizer products produced by epoxidation reaction using edible vegetable oil such as soybean oil as the main raw material, which has injected new vitality into the plasticizer industry. However, this plasticizer product also has serious problems: one is that the technical index of the existing epoxy soybean oil product in my country is low, and there are various defects in...

Claims

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Application Information

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IPC IPC(8): C08K5/1515C08L27/06
Inventor 沈健章金富
Owner 浙江嘉澳环保科技股份有限公司
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