Blending device and process for isoquinoline

Abstract

The invention relates to the technical field of coking, and in particular relates to blending apparatus and a process for isoquinoline. The apparatus comprises a blending tank, a gear pump and an oildrum; the blending tank comprises a coil pipe heater and a nitrogen stirring device, the top of the blending tank is connected with direct barreling pipelines under a rectifying tower, the bottom is connected with the oil drum and a nitrogen main pipeline through a pipeline and a control valve, and the inlet and outlet of the side surface coil pipe heater are respectively connected with a low-pressure steam main pipe and a gas collecting cylinder; and the gear pump is connected with the top of the blending tank through the pipeline and the control valve, and is connected with the oil drum through a rubber pipe. Depending on the distribution situation of each fraction in raw materials, according to an actual operation degree of batch rectification, that is, the isoquinoline chromatography content in a current flow of the top of the rectifying tower, a production route of the current flow and the situation whether preparation is performed are flexibly selected; and a newly-additional preparing device is utilized, and based on an improved isoquinoline blending method, a whole set of isoquinoline blending operation is realized. The apparatus provided by the invention is used for blending isoquinoline products, has simple operation, greatly reduces labor intensity of operators, and is not restricted by air temperature.

Description

technical field [0001] The invention relates to the technical field of coking, in particular to an isoquinoline compounding device and process. Background technique [0002] Isoquinoline exists in heavy pyridine resources, and its content only accounts for about 1 / 10,000 of the total amount of coal tar. The raw material is not easy to obtain, and it has a wide range of uses. It can be used to manufacture drugs and high-efficiency insecticides. After oxidation, it can be made into pyridine carboxylic acid. Its derivatives can be used to make color films and dyes, so the market price is relatively high, and the pre-tax price of 95% isoquinoline is as high as 57,000 to 65,000 yuan / t. Isoquinoline products are divided into excellent isoquinoline products (content ≥ 97%), first-class isoquinoline products (96% ≤ content < 97%), qualified isoquinoline products (95% ≤ content < 96% ), while the price of superior isoquinoline products is only 3,000 to 4,000 yuan / t higher than...

AI Technical Summary

Problems solved by technology

At present, isoquinoline is generally produced in my country by one-time still batch distillation. The chromatographic content of isoquinoline in the current flow of high-concentration raw materials can reach up to 99%, and the isoquinoline content in the current flow cannot be controlled by means of adjustment.

Usually, specific content fractions are collected into galvanized barrels, and then pumps are used to deploy between galvanized barrels. The labor intensity of the operators is relatively high, and because the high content of isoquinoline is easy to crystallize, it is very difficult to deploy in winter

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