Urea reduction production system for bromide
A technology of production system and reduction method, applied in chemical instruments and methods, chemical/physical processes, chemical/physical/physicochemical processes, etc., can solve the problem of substandard decolorization of bromide, endangering the health of staff, and poor decolorization effect, etc. problems, to achieve the effect of improving the decolorization and filtering effect, solving the volatilization of bromine, and reducing potential safety hazards
Inactive Publication Date: 2019-01-11
WEIFANG RIXING CHEM
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Problems solved by technology
The technology of producing bromide by urea reduction method is relatively mature, but there are still some problems: as the raw material bromine of bromination reaction is very volatile and has a pungent smell, bromine is volatile during the reaction process, resulting in waste of bromine and also It causes environmental pollution and endangers the health of staff; there is a safety hazard in transporting bromine through pressurization; when the bromide is prepared for decolorization post-treatment, the decolorization effect is not good, resulting in the bromide decolorization not meeting the standard, which affects product quality
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[0016] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the accompanying drawings.
[0017] Such as figure 1 A kind of bromide urea reduction method production system shown, comprises reactor 1, bromine addition device and urea solution addition device;
[0018] The bromine addition device comprises a nitrogen tank 2, a bromine tank 3 and a bromine metering tank 4 communicated in sequence, a pressure relief valve 5 is arranged between the nitrogen tank 2 and the bromine tank 3, and the bromine The lower end of the metering tank 4 is communicated with the reactor 1 through the bromine dripping pipeline 6, and the upper end of the bromine metering tank 4 is fixedly connected with a balance pipeline 7, and the lower end of the balance pipeline 7 is connected with the bromine dripping pipe 6. Add pipe 6 to connect;
[0019] Described urea solution adding device comprises urea solution ...
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The invention discloses a urea reduction production system for bromide, and belongs to the technical field of bromide production. The system comprises a reactor, a bromine adding device and a urea solution adding device. According to the production system, addition of bromine is realized through pressure feeding of nitrogen so as to avoid volatilization of bromine; with the arrangement of a balance pipeline, volatilization of bromine can be effectively solved, and potential safety hazards are reduced; by arranging multiple activated carbon layers in an activated carbon decoloration device, thedecoloration and filtration effect is improved; since the first activated carbon layer is arranged as a convex arched activated carbon layer, the contact area of a bromide solution and the activatedcarbon layers is increased, and the decoloration and filtration effect is improved; a stirring rod and a heating pipe in a mixer can help accelerate the preparation of the urea solution and improve the efficiency; and with the arrangement of a stirring column and a stirring paddle in the reactor, the stirring and mixing effect is better, the reduction reaction is more sufficient, and the production efficiency is improved.
Description
technical field [0001] The invention relates to the technical field of bromide production, in particular to a bromide urea reduction production system. Background technique [0002] Bromides generally refer to binary compounds containing bromine in the -1 oxidation state, including metal bromides and non-metal bromides. Common metal bromides are: sodium bromide, manganese bromide, barium bromide, copper bromide, magnesium bromide, thallium bromide, mercury bromide and so on. Metal bromide has a wide range of uses, such as: sodium bromide is used to make photosensitive film, it is used as a diuretic and sedative in medicine, it has the effect of strengthening the inhibition process of the cerebral cortex, and it is used as a brominating agent in industries such as synthetic spices, medicine and dyes , also used as a chemical reagent; Potassium bromide is used in medicine as a nerve sedative, in photography to make silver bromide paper, also used in engraving and lithography,...
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IPC IPC(8): B01J19/18B01J4/02B01D29/01B01D29/56
CPCB01D29/01B01D29/56B01J4/02B01J19/0013B01J19/18
Inventor 宗先庆张国强郭安昊孙美玲邱亮泽
Owner WEIFANG RIXING CHEM