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Hydrolysis process of synthesizing potassium acetylsulfamilate and special device for the same

A process, the technology of hydrolysis reactor, applied in the direction of chemical/physical process, chemical method of reacting liquid and liquid, chemical method of reacting liquid and gas medium, etc., can solve problems such as intermittent production and leakage, and achieve improvement The effect of production efficiency, process and equipment simplicity

Active Publication Date: 2008-08-13
南通宏信化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

No stirring device is required, solving the problem of leakage and intermittent production

Method used

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  • Hydrolysis process of synthesizing potassium acetylsulfamilate and special device for the same

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Embodiment Construction

[0012] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0013] like figure 1 As shown, the special equipment of the described hydrolysis process comprises: a hydrolysis reactor 10, on the opposite side walls of the hydrolysis reactor 10, a feed inlet 11 and a feed inlet 8 are respectively arranged, and the bottom of the hydrolysis reactor 10 is provided with The discharge port 9, the feed port 11 are connected with the outlet 5 of the jet pump 4, the return port 8 is connected with the water source 7 through a pipeline and then connected with the inlet of the circulation pump 6, and the outlet of the circulation pump 6 is connected with the condenser 12 The inlet of the condenser 12 is connected with the inlet 1 of the jet pump 4, and the other inlet 2 of the jet pump 4 is connected with the material 3 after the sulfonation reaction.

[0014] Utilize above-mentioned special-purpose equipment, the d...

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Abstract

The present invention discloses hydrolysis process and apparatus capable of continuously operating without need of stirring for the potassium acetyl sulfanilate synthesis. The technological scheme includes jetting the sulfonated and cyclized material with a jet pump to the hydrolyzing reaction kettle for hydrolysis, feeding partial material and water from the reaction kettle to the condensator outside the reaction kettle for cooling with a circulating pump, and feeding the cooled material to the other inlet of the jet pump for being jetted together with the sulfonated and cyclized material to the hydrolyzing reaction kettle. The apparatus consists of a hydrolyzing reaction kettle, a jet pump, a circulating pump and a condensator connected together. The present invention has greatly raised production efficiency.

Description

technical field [0001] The invention relates to a hydrolysis process during the synthesis of acesulfame potassium and special equipment for the process. Background technique [0002] Acesulfame potassium is a sweetener widely used in food and beverage industries. The compound has the advantages of good water solubility, high sweetness, stable physical and chemical properties, strong synergistic effect, non-metabolism and the like. [0003] There are many ways to synthesize acesulfame potassium. The synthetic method of acesulfame potassium involved in the present invention is based on the U.S. Patent No. US4,695,629, and its main method steps are as follows: taking sulfamic acid as a raw material to react with diketene under the catalysis of triethylamine, Then use sulfur trioxide for sulfonation and ring closure, then hydrolyze to obtain acesulfame acid, and then react with potassium hydroxide to obtain acesulfame potassium. Looking at other related patents on the synthes...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D291/06B01J14/00B01J10/00
Inventor 刘纪才孔令文陈小萍包忠祥
Owner 南通宏信化工有限公司