Method and apparatus for preparing camphene using light oil of pine tar

A technology for pine oil and camphene, which is applied in the directions of hydrocarbon cracking to produce hydrocarbons, organic chemistry, etc., can solve the problems of high price of raw material turpentine, unseen preparation of camphene, high production cost, etc., and achieves low raw material price and high production cost. The effect of low cost and low equipment investment

Inactive Publication Date: 2006-11-22
连明聪
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After testing, the amphene prepared by this method and its equipment is essentially a mixture of tricyclene and single amphene, with a total content of more than 95%, but because the amphene prepared by it contains more than 15% tricyclene, The content of individual camphenes is low, so that the use is limited, and the price of raw material turpentine is high, and the production cost remains high
[0004] Many scholars at home and abroad are studying the use of cheap pine light oil as raw material for deep processing, but they are limited to the output of mineral dressing oil, turpentine, creosote, pine tar, longifolene, coniferene and other products, which have not been seen so far. There are literature reports on the preparation of camphene from turpentine oil

Method used

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  • Method and apparatus for preparing camphene using light oil of pine tar
  • Method and apparatus for preparing camphene using light oil of pine tar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] The following sequential steps: a. Put pine light oil 1 into a water washing tank, then add cracking agent 12, and raise the temperature to 40-70° C. to crack pine light oil 1, and separate phenolic water 2 and dry distilled oil 3; b. The dry distillation oil 3 is introduced into the precipitation tank, left to settle, and the residual phenolic water 2 and the dry distillation oil 3 are separated; c. The precipitated dry distillation oil 3 is introduced into the distillation tower, and is carried out under a vacuum of 0.91-0.94Pa and a temperature of 85-125°C. Distillation, separation of head oil 11 and middle oil 4: d. Import middle oil 4 into the reactor and add catalyst 10, carry out isomerization reaction at normal pressure and temperature of 130-140°C, the reaction time is 18-24 hours, and the output contains catalyst The isomerized liquid 5 of 10; e. the isomerized liquid 5 containing the catalyst 10 is introduced into a settling tank for static precipitation, and ...

Embodiment 2

[0073] The sequential steps and equipment are the same as in Example 1, except that the separated liquid miscellaneous oil 8 is returned to the reactor for isomerization reaction. It is detected that the prepared camphene 7 contains 93.25% of the single camphene, and the product yield reaches 80%.

Embodiment 3

[0075] The sequential steps and equipment are the same as in Example 1, except that the precipitated catalyst 10 is returned to the reactor for recycling, and only some catalysts 10 need to be replenished in the reactor according to the output, which obviously reduces the production cost.

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Abstract

This invention relates to a method for producing amphene by using light oil and the equipment for making the same, belonging to the forest chemical product technology field. The procedures comprise: decomposition, precipitation, distillation, isomerization reaction, precipitation, distillation, freezing and separation, wherein the decomposition agent applies caustic soda, catalyst applies titanyl compound, and the separated miscella and precipitated catalyst can be recovered for repeated use. The equipments comprise: water washing tank, precipitation tank, autoclave, distillation tower, collection tank, freezing room, centrifuge and connection among them. This invention is characterized of high purity with more than 90%amphene, high yield up to 80%, low-price and easy-obtained raw material, low production cost, stable process, simple operation, low equipment investment, and good reliability, which makes it suitable for forest chemical product application.

Description

1. Technical field [0001] The invention relates to the technical field of forest product chemical industry, in particular to a method and equipment for preparing camphene from pine light oil. 2. Background technology [0002] Pine trees are full of treasures. Rosin, turpentine, etc. can be prepared from pine resin cut from the trunk, and pine root oil, turpentine oil, etc. can be prepared from pine roots. These finished and semi-finished products can also be further processed into a series of forestry chemical products. Camphene is a kind of monoterpene, the isomer product of pinene, it is white waxy solid at room temperature, molecular formula: C10H16. Camphene is a multi-purpose intermediate. In addition to being used in the synthesis of isobornyl acetate and camphor, it has been widely used in the synthesis of sandalwood, spices and pesticides in recent years. [0003] At present, the method for preparing camphene and the public literature of its equipment are only found...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C13/19C07C4/06
Inventor 连明聪
Owner 连明聪
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