CN203002024U - Special equipment for purifying impurities in trimethyl orthoformate - Google Patents
Special equipment for purifying impurities in trimethyl orthoformate Download PDFInfo
- Publication number
- CN203002024U CN203002024U CN 201220707960 CN201220707960U CN203002024U CN 203002024 U CN203002024 U CN 203002024U CN 201220707960 CN201220707960 CN 201220707960 CN 201220707960 U CN201220707960 U CN 201220707960U CN 203002024 U CN203002024 U CN 203002024U
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- mixed bed
- resin mixed
- trimethyl orthoformate
- special equipment
- equipment
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Abstract
The utility model discloses special equipment for purifying impurities in trimethyl orthoformate. The equipment is characterized by comprising a mixed resin bed, a scrubbing solution inlet and a delivery pipe are arranged at the upper end of the mixed resin bed, the delivery pipe is connected with a feed inlet of a secondary paper core filter, a scrubbing solution outlet and a delivery pipe are arranged at the lower end of the mixed resin bed, the delivery pipe is connected with a discharge outlet of a primary paper core filter, and a feed inlet of the primary paper core filter is connected with a delivery pump by a pipeline; and the mixed resin bed is internally filled with 330 alkalescence epoxy anion exchange resin. According to the equipment, the resin of the mixed bed is adopted for treating, the content of impurities can be reduced to 0.001% below, or impurities can not be detected by chromatography. With the equipment, the technical problems that the impurity removal efficiency is low, the consumption is more and the cost is high in the prior art can be solved.
Description
Technical fieldThe utility model belongs to the trimethyl orthoformate production technical field, relates to its special equipment of impurity purifying in a kind of trimethyl orthoformate.
Background technologyAt present, in the trimethyl orthoformate production process, often be accompanied by the generation of impurity, impurity content is usually in 0.5～1%(mass percent), such impurity is in the production process of follow-up medical material medicine, can have influence on its yield, concurrent looks is closed reaction and is produced other impurity, and is difficult for removing.Particularly in the portion downstream product uses, also can make its catalyst poisoning, greatly reduce feed stock conversion.The purification process of impurity in the prior art trimethyl orthoformate, mostly adopt membrane separating, chemical treatment or increase the method such as destilling tower, in the trimethyl orthoformate of producing, the content of impurity has been reduced to 0.01～0.02%(mass percent), loss is many, cost is high but exist, and also has influence on the use of downstream product.
The utility model contentThe purpose of this utility model is to solve prior art to have the technical problem that dust removal rate is low, loss is many, cost is high, and impurity purifying special equipment in a kind of trimethyl orthoformate is provided.
To achieve these goals, impurity purifying special equipment in a kind of trimethyl orthoformate of the utility model, it comprises the resin mixed bed, the upper end of resin mixed bed is provided with cleaning solution import and the carrier pipe that is connected with secondary paper element filtering device charging aperture, the lower end of resin mixed bed is provided with cleaning solution outlet and the carrier pipe that is connected with one-level paper element filtering device discharging opening, is connected with delivery pump by pipeline on the charging aperture of described one-level paper element filtering device; Fill 330 alkalescent epoxy type anion exchange resins in described resin mixed bed.
The specification of described resin mixed bed is Φ 400 * 3000.
The utility model adopts the resin mixed bed to process, and its impurity content can be dropped to below 0.001%, even can't detect impurity with chromatogram.The utility model has solved prior art and has had the technical problem that dust removal rate is low, loss is many, cost is high.
Description of drawingsAccompanying drawing is the utility model special equipment structural representation.
In figure 1, resin mixed bed 2, secondary paper element filtering device 3, one-level paper element filtering device 4, delivery pump
The specific embodimentWith reference to accompanying drawing, impurity purifying special equipment in the utility model trimethyl orthoformate, it comprises resin mixed bed 1, the upper end of resin mixed bed 1 is provided with cleaning solution import and the carrier pipe that is connected with secondary paper element filtering device 2 charging apertures, the lower end of resin mixed bed 1 is provided with cleaning solution outlet and the carrier pipe that is connected with one-level paper element filtering device 3 discharging openings, is connected with delivery pump 4 by pipeline on the charging aperture of described one-level paper element filtering device 3; Fill 330 alkalescent epoxy type anion exchange resins in described resin mixed bed 1; The specification of described resin mixed bed 1 is Φ 400 * 3000.
The 330 alkalescent epoxy type anion exchange resins that fill in specification of equipment of the present utility model and resin mixed bed, repeatedly prove through orthogonal test repeatedly, selected device was through production practices in 2 years, after the trimethyl orthoformate purifying, its impurity content drops to below 0.001%, detects with chromatogram for N time to be " 0 " impurity.
Claims (2)
1. impurity purifying special equipment in a trimethyl orthoformate, it is characterized in that it comprises the resin mixed bed, the upper end of resin mixed bed is provided with cleaning solution import and the carrier pipe that is connected with secondary paper element filtering device charging aperture, the lower end of resin mixed bed is provided with cleaning solution outlet and the carrier pipe that is connected with one-level paper element filtering device discharging opening, is connected with delivery pump by pipeline on the charging aperture of described one-level paper element filtering device; Fill 330 alkalescent epoxy type anion exchange resins in described resin mixed bed.
2. impurity purifying special equipment in trimethyl orthoformate according to claim 1, the specification that it is characterized in that described resin mixed bed is Φ 400 * 3000.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220707960 CN203002024U (en) | 2012-12-19 | 2012-12-19 | Special equipment for purifying impurities in trimethyl orthoformate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220707960 CN203002024U (en) | 2012-12-19 | 2012-12-19 | Special equipment for purifying impurities in trimethyl orthoformate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203002024U true CN203002024U (en) | 2013-06-19 |
Family
ID=48593662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220707960 Expired - Fee Related CN203002024U (en) | 2012-12-19 | 2012-12-19 | Special equipment for purifying impurities in trimethyl orthoformate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203002024U (en) |
-
2012
- 2012-12-19 CN CN 201220707960 patent/CN203002024U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20131219 |