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Green terpin hydrate and terpilenol production methods

A terpene diol hydrate, green production technology, applied in chemical instruments and methods, preparation of organic compounds, separation/purification of hydroxyl compounds, etc., can solve problems such as reducing product competitiveness, increasing production costs, polluting the environment, and achieving Strong versatility, saving production water, and reducing acidity

Active Publication Date: 2017-07-21
FUJIAN SENFA BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the existence of a large amount of waste acid water, it not only pollutes the environment, but also increases the production cost of enterprises and reduces the competitiveness of products.

Method used

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  • Green terpin hydrate and terpilenol production methods

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Step 1: First, add 1.4 tons of 30% sulfuric acid solution and 1 ton of turpentine to the reaction tank for hydration reaction. After the hydration reaction, let the reaction materials stand for 5 minutes, drain the lower layer of acid solution to the acid storage tank, and then add red The quality of adding oil and red oil is 0.7 times of the input raw material;

[0034] Step 2: Stir for 3-5 minutes to fully disperse the reaction materials into the red oil, stop stirring, let stand for stratification for 10 minutes, and drain the acid water precipitated in the lower layer into the acid water storage tank; after the acid water is drained, the material Discharge into the semi-finished product storage tank;

[0035] Step 3: Put the material in the semi-finished product storage tank into the centrifuge for centrifugation, separate the water and oil in the material, and stop the centrifugation until there is no liquid flowing out of the centrifuge; obtain solid centrifuged m...

Embodiment 2

[0039] Step 1: First, add 1.4 tons of 30% sulfuric acid solution and 1 ton of turpentine to the reaction tank for hydration reaction. After the hydration reaction, let the reaction materials stand for 5 minutes, drain the lower layer of acid solution to the acid storage tank, and then add red The quality of adding oil and red oil is 1.0 times of the input raw material;

[0040] Step 2: Stir for 3-5 minutes to fully disperse the reaction materials into the red oil, stop stirring, let stand for stratification for 10 minutes, and drain the acid water precipitated in the lower layer into the acid water storage tank; after the acid water is drained, the material Discharge into the semi-finished product storage tank;

[0041] Step 3: Put the material in the semi-finished product storage tank into the centrifuge for centrifugation, separate the water and oil in the material, and stop the centrifugation until there is no liquid flowing out of the centrifuge; obtain solid centrifuged m...

Embodiment 3

[0045] Step 1: First, add 1.4 tons of 30% sulfuric acid solution and 1 ton of turpentine to the reaction tank for hydration reaction. After the hydration reaction, let the reaction materials stand for 5 minutes, drain the lower layer of acid solution to the acid storage tank, and then add red oil ; The addition of red oil is 1.4 times of input raw material;

[0046]Step 2: Start stirring for 3-5 minutes to fully disperse the reaction materials into the red oil, stop stirring, let stand for 5 minutes, and drain the acid water precipitated in the lower layer into the acid storage tank; after the acid water is drained, the materials are discharged into the Semi-finished product storage tank;

[0047] Step 3: Put the material in the semi-finished storage tank into the centrifuge in the centrifuge, separate the water and oil in the material, and stop the centrifugation until no liquid flows out of the centrifuge; obtain solid centrifuged material and centrifuged liquid, and the cen...

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Abstract

The invention discloses a green terpin hydrate production method. The green terpin hydrate production method comprise the step of adding sulfuric acid and turpentine to perform hydration reaction and is characterized in that the heterogeneous product (red oil) collected in other bathes and produced through side reaction in the sulfuric acid and turpentine hydration reaction is added into a reaction material obtained after hydration reaction for washing, the material is subjected to standing and precipitation to remove acid water after washing. The invention further discloses a green terpilenol production method. The green terpilenol production method comprises the step of generating the terpin hydrate through hydration reaction and is characterized in that the step of generating the terpin hydrate through hydration reaction is achieved by adopting the green terpin hydrate production method. According to the green terpin hydrate and terpilenol production methods, the red oil produced in side reaction is utilized to perform washing in a hydration process, a little amount of clear water is used for washing in a centrifugation process, all the collected acid water is reused without discharging, and green production of acid water products is achieved.

Description

technical field [0001] The invention relates to the field of preparation of terpineol, in particular to a green production method of terpene diol hydrate and terpineol. Background technique [0002] Terpineol is a colorless oily transparent liquid with the aroma of lilac. The annual output of terpineol in my country is more than 30,000 tons. It is a bulk product in the spice industry and is widely used in spices, flavors, chemicals, and electronics. [0003] The existing production method of terpineol product is to use turpentine as raw material, and under stirring, hydration reaction is carried out with 30% sulfuric acid as a catalyst (feeding ratio is: turpentine: 30% sulfuric acid=1:1.4), to prepare hydrated terpene diol During the hydration reaction, in addition to generating terpene diols, about 30% of turpentine undergoes side reactions and isomerized into terpene compounds (commonly known as red oil). After the hydration reaction is completed, let it stand for precip...

Claims

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Application Information

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IPC IPC(8): C07C29/00C07C29/74C07C35/08C07C29/60C07C33/14
CPCC07C29/00C07C29/60C07C29/74C07C35/08C07C33/14
Inventor 黄金龙邱安彬
Owner FUJIAN SENFA BIOTECH
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