Equipment and process for efficiently extracting furanphenol intermediate monoether
A furan phenol and intermediate technology, which is applied in the field of high-efficiency extraction of furan phenol intermediate monoether, can solve the problems of serious water pollution, difficult treatment of phenol-containing wastewater, loss, etc., and achieves the effects of protecting the environment, expanding the development of downstream products, and reducing the content
Active Publication Date: 2022-04-08
JIANGSU SANJILI CHEM
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[0002] In the prior art, a single extraction tower is used to extract the intermediates in the furanol reaction liquid, and the raffinate phase contains a small amount of product intermediates flowing out of the system, causing losses; the unreacted catechol in the reaction liquid is extracted by using MIBK, and the above-mentioned problem, and the treatment of phenol-containing wastewater is difficult and seriously pollutes the water body; for this purpose, a kind of equipment and process for efficient extraction of furan phenol intermediate monoether is provided
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[0025] Example: see figure 1 , the present invention provides a technical solution: a device for efficient extraction of furanol intermediate monoether, comprising a dehydration tower 3, a cyclization reaction separation system 4, an extraction tower 5, an extraction tower 6, a three-effect MVR7 and product The separation tower 9 and the first extraction tower 5 are respectively connected to the second extraction tower 6, the dehydration tower 3 and the three-effect MVR7, the dehydration tower 3 is connected to the cyclization reaction separation system 4, and the cyclization reaction separation system 4 is respectively connected to the second extraction tower 6 and the product The separation tower 9 is connected, and the three-effect MVR7 is also connected with the second extraction tower 6.
[0026] The top of the first extraction tower 5 is connected with the precipitation reaction solution delivery pipe 1, the bottom of the first extraction tower 5 is connected to the top ...
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The equipment comprises a dehydrating tower, a cyclization reaction separation system, an extraction tower I, an extraction tower II, a triple-effect MVR (Mechanical Vapor Recompression) and a product separation tower, the extraction tower I is connected with the extraction tower II, the dehydrating tower and the triple-effect MVR respectively, the dehydrating tower is connected with the cyclization reaction separation system, and the product separation tower is connected with the cyclization reaction separation system. The cyclization reaction separation system is respectively connected with the extraction tower II and the product separation tower, and the triple-effect MVR is also connected with the extraction tower II. According to the process, the extraction rate of a furan phenol reaction intermediate is increased, the yield of furan phenol is increased, the content of catechol in furan phenol is reduced, the purity of furan phenol is improved, quality and efficiency are improved, zero discharge of phenol-containing wastewater is realized through recovery of catechol, and the production cost is reduced while the environment is protected.
Description
technical field [0001] The invention relates to the field of extraction, in particular to equipment and a process for efficiently extracting furanol intermediate monoether. Background technique [0002] In the prior art, a single extraction tower is used to extract the intermediates in the furanol reaction liquid, and the raffinate phase contains a small amount of product intermediates flowing out of the system, causing losses; the unreacted catechol in the reaction liquid is extracted by using MIBK, and the above-mentioned problem, and the treatment of phenol-containing wastewater is difficult and seriously pollutes the water body; therefore, an equipment and process for efficiently extracting furan phenol intermediate monoether is provided. Contents of the invention [0003] The purpose of the present invention is to address the defects of the prior art and provide a device and process for efficiently extracting furan phenol intermediate monoether, so as to solve the pro...
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IPC IPC(8): C07D307/86C07C37/72C07C39/08
CPCY02P20/10
Inventor 王恒启刘成龙刘春刘闫李乃艳
Owner JIANGSU SANJILI CHEM