Hydroxylamine hydrochloride continuous production system and process
A technology of hydroxylamine hydrochloride and a production system, applied in the field of chemical production, can solve the problems of difficulty in realizing sustainable production and development, difficulty in meeting market demands, and high cost of finished products, and achieves easy segmented temperature control, avoids hydroxylamine hydrochloride decomposition, and less equipment. Effect
Active Publication Date: 2019-05-28
湖北仙粼化工有限公司
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Problems solved by technology
[0003] The existing equipment and system for producing finished products of hydroxylamine hydrochloride are high in cost, complex in structure, difficult to operate, low in yield and low in efficiency, and difficult to meet market demand. Such finished products have high cost and low profit, and require maintenance and high maintenance costs. Difficult to achieve sustainable production and development
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[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0018] Please refer to the figure, in the embodiment of the present invention, a continuous production system of hydroxylamine hydrochloride and its process include a preparation kettle 1, an acidolysis reaction tower 2 and an acidolysis reaction tower 3, and the top of the preparation kettle 1 is connected with a Feed port, the feed port is connected with hydrochloric acid feed pipe 11, butanone oxime feed pipe 12, mother liquor feed pipe 13 respectively, the ...
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The invention provides a hydroxylamine hydrochloride continuous production system and process. The hydroxylamine hydrochloride continuous production system comprises a preparation kettle, a first acidolysis reaction tower and a second acidolysis reaction tower; the top of the preparation kettle is connected with a feeding inlet, and the feeding inlet is connected with a hydrochloric acid feeding pipe, a diacetylmonoxime feeding pipe and a post-treatment mother liquor feeding pipe; tower bodies of the first acidolysis reaction tower and the second acidolysis reaction tower are provided with feeding pipes correspondingly, and the tower bottoms of the first acidolysis reaction tower and the second acidolysis reaction tower are provided with discharging pipes correspondingly; the feeding pipeand the discharging pipe of the first acidolysis reaction tower are connected with a discharging outlet and the feeding inlet of a first reboiler correspondingly, and the feeding pipe and the discharging pipe of the second acidolysis reaction tower are connected with a second reboiler; and the preparation kettle is connected with the feeding inlet of the first reboiler. According to the hydroxylamine hydrochloride continuous production system, equipment is less, the occupied area is small, investment is less, and management is convenient; and the purity, yield and production speed of productsare all better than those of hydroxylamine hydrochloride products on the existing market, and water in a solvent is separated through pervaporation, energy consumption is low, and the efficiency is high.
Description
technical field [0001] The invention relates to the technical field of chemical production, in particular to a continuous production system of hydroxylamine hydrochloride and a process thereof. Background technique [0002] Hydroxylamine hydrochloride is an important chemical raw material and organic synthesis intermediate, and has a wide range of uses. Hydroxylamine hydrochloride is commonly used in the preparation of oximes, especially cyclohexanone oxime for the synthesis of caprolactam. Hydroxylamine hydrochloride can also be used to synthesize a variety of medicines, pesticides and dyes, such as the anticancer drug hydroxyurea, sulfamethoxazole, the pesticide methoxam and the dye isatin; it can also be used to synthesize high-value intermediates with more complex structures, such as hydroxylamine -O-sulfonic acid, p-hydroxybenzonitrile, carboxymethylhydroxylamine hemihydrochloride, N-hydroxysuccinimide; it can also be used as a depolarizer in electrical analysis and a ...
Claims
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IPC IPC(8): C01B21/14C07C45/42C07C49/10
CPCY02P20/10
Inventor 曾曼华尹述柏
Owner 湖北仙粼化工有限公司