CN100488868C - Technology for coarse bromine purifying using hydrobomic acid enriched liquid - Google Patents
Technology for coarse bromine purifying using hydrobomic acid enriched liquid Download PDFInfo
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- CN100488868C CN100488868C CNB2007100571968A CN200710057196A CN100488868C CN 100488868 C CN100488868 C CN 100488868C CN B2007100571968 A CNB2007100571968 A CN B2007100571968A CN 200710057196 A CN200710057196 A CN 200710057196A CN 100488868 C CN100488868 C CN 100488868C
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- bromine
- hydrogen bromide
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Abstract
A process for preparing high-purity bromine from the hydrobromic acid-enriched liquid includes such steps as oxidizing-distilling, pre-heating, refining, separating and recovering the tailing gas.
Description
Technical field
The present invention relates to a kind of smart bromine technology of producing, particularly a kind of Hydrogen bromide pregnant solution that utilizes carries out the technology that thick bromine is purified.
Background technology
General produce smart bromine technology, enter rectifying tower after the thick bromine cooling, carry out repeatedly rectification and purification with steam then, discharge impurity, produce smart bromine through cooling with separating again for the Hydrogen bromide pregnant solution that will blow out operation and obtain obtains thick bromine after oxidation, distillation.Said process need consume a large amount of steam on the one hand and carry out thick bromine rectifying, wasted steam energy, contain part pollutant component (chlorine and bromine) on the other hand in the tail gas that in carrying out thick bromine rectifying, produces, directly emptying influences environment, simultaneously, because the tail gas emptying also causes the loss of the recycling composition of part, has increased production cost.
Summary of the invention
The purpose of this invention is to provide a kind of Hydrogen bromide pregnant solution that utilizes and carry out the technology that thick bromine is purified, this technology is carried out the purpose that thick bromine is purified and replaced rectification working process realization product to purify with the Hydrogen bromide pregnant solution, save the usage quantity of steam in producing on the one hand, reduce production costs, solve the problem of environmental pollution that the tail gas emptying brings on the other hand.
For achieving the above object, the technical solution adopted in the present invention provides a kind of Hydrogen bromide pregnant solution that utilizes and carries out the technology that thick bromine is purified, and this technology may further comprise the steps:
Step 1, oxidation distillation, the Hydrogen bromide pregnant solution is imported distillation tower, feed a certain amount of chlorine, promptly join the chlorine rate and be 100%～110% and steam, making the distillation tower tower top temperature is 50 ℃～80 ℃, the Hydrogen bromide pregnant solution is oxidized, and through obtaining thick bromine and contain bromine aqueous solution after distillation, cooling, the separation; Thick bromine imports refining step and makes with extra care, and contains bromine aqueous solution importing distillation tower and carries out recycle;
Step 2, the preheating of Hydrogen bromide pregnant solution are introduced the heat exchanger of distillation tower bottom with the Hydrogen bromide pregnant solution, and the waste liquid that produces with distillation process carries out heat exchange and is called preheating, strengthens the reactive behavior of Hydrogen bromide pregnant solution;
Step 3, refining, cooled thick bromine is derived, react in the reaction pipeline of certain-length with the Hydrogen bromide pregnant solution after the preheating, to dissolve the chlorine in the thick bromine, and the flow by valve control Hydrogen bromide pregnant solution, make Hydrogen bromide pregnant solution and slightly volume ratio 〉=1 of bromine, slightly chlorine dissolved removal more than 99.95% of carrying secretly in the bromine;
Step 4, separate, the lysate that refining step obtains obtains smart bromine after separating, i.e. finished product bromine and contain bromine aqueous solution, and the canned warehouse-in of finished product bromine contains bromine aqueous solution and imports distillation tower and reclaim again;
Step 5, tail gas recycle import recovery tower with the tail gas that produces in refining and the separation circuit, carry out absorption cleaning with the Hydrogen bromide pregnant solution, and the tail gas after the processing is realized zero disposal of pollutants.
Effect of the present invention is to adopt this to produce smart bromine technology to have saved rectification working process in the technology on the one hand, saved the usage quantity of steam greatly, reduced production cost, the obnoxious flavour in the reaction process has been solved problem of environmental pollution by abundant absorption cleaning on the other hand.
Description of drawings
The process flow sheet that Fig. 1 purifies for the thick bromine of the present invention.
Embodiment
Reaching embodiment in conjunction with the accompanying drawings is illustrated the technology of utilizing the Hydrogen bromide pregnant solution to carry out thick bromine purification of the present invention.
As shown in Figure 1, the Hydrogen bromide pregnant solution that utilizes of the present invention carries out the technology that thick bromine is purified, and its processing step is to realize like this.
Step 1, oxidation distillation import distillation tower with the Hydrogen bromide pregnant solution, feed a certain amount of chlorine, and joining the chlorine rate is 100%～110%, promptly in chlorine quality of Tong Ruing and the raw material ratio of bromine quality for joining the chlorine rate.Feed steam simultaneously, the tower top temperature that makes distillation tower is 50 ℃～80 ℃, and the Hydrogen bromide pregnant solution is oxidized, and through obtaining thick bromine and contain bromine aqueous solution after distillation, cooling, the separation; Thick bromine imports refining step and makes with extra care, and contains bromine aqueous solution importing distillation tower and carries out recycle;
Step 2, the preheating of Hydrogen bromide pregnant solution are introduced the heat exchanger of distillation tower bottom with the Hydrogen bromide pregnant solution, and the waste liquid that produces with distillation process carries out heat exchange and is called preheating, strengthens the reactive behavior of Hydrogen bromide pregnant solution;
Step 3, refining, cooled thick bromine is derived, react in the reaction pipeline of certain-length with the Hydrogen bromide pregnant solution after the preheating, to dissolve the chlorine in the thick bromine, and the flow by valve control Hydrogen bromide pregnant solution, make Hydrogen bromide pregnant solution and slightly volume ratio 〉=1 of bromine, slightly chlorine dissolved removal more than 99.95% of carrying secretly in the bromine;
Step 4, separation, the lysate that refining step obtains obtains smart bromine (being the finished product bromine) and contains bromine aqueous solution after separating, and the canned warehouse-in of finished product bromine contains bromine aqueous solution importing distillation tower and reclaims again;
Step 5, tail gas recycle import recovery tower with the tail gas that produces in refining and the separation circuit, carry out absorption cleaning with the Hydrogen bromide pregnant solution, and the tail gas after the processing is realized zero disposal of pollutants.
Claims (1)
1, a kind of Hydrogen bromide pregnant solution that utilizes carries out the technology that thick bromine is purified, and this technology may further comprise the steps:
Step 1, oxidation distillation, the Hydrogen bromide pregnant solution is imported distillation tower, feed a certain amount of chlorine and steam, the chlorine rate of joining of described chlorine is 100%～110%, this joins the ratio of chlorine rate for bromine quality in the chlorine quality that feeds and the raw material, making the distillation tower tower top temperature is 50 ℃～80 ℃, and the Hydrogen bromide pregnant solution is oxidized, and through obtaining thick bromine and contain bromine aqueous solution after distillation, cooling, the separation; Thick bromine imports refining step and makes with extra care, and contains bromine aqueous solution importing distillation tower and carries out recycle;
Step 2, the preheating of Hydrogen bromide pregnant solution are introduced the heat exchanger of distillation tower bottom with the Hydrogen bromide pregnant solution, and the waste liquid that produces with distillation process carries out heat exchange and is called preheating, strengthens the reactive behavior of Hydrogen bromide pregnant solution;
Step 3, refining, cooled thick bromine is derived, react in the reaction pipeline of certain-length with the Hydrogen bromide pregnant solution after the preheating, to dissolve the chlorine in the thick bromine, and the flow by valve control Hydrogen bromide pregnant solution, make Hydrogen bromide pregnant solution and slightly volume ratio 〉=1 of bromine, slightly chlorine dissolved removal more than 99.95% of carrying secretly in the bromine;
Step 4, separate, the lysate that refining step obtains obtains smart bromine after separating is the finished product bromine and contains bromine aqueous solution, and the canned warehouse-in of finished product bromine contains bromine aqueous solution and imports distillation tower and reclaim again;
Step 5, tail gas recycle import recovery tower with the tail gas that produces in refining and the separation circuit, carry out absorption cleaning with the Hydrogen bromide pregnant solution, and the tail gas after the processing is realized zero disposal of pollutants.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100571968A CN100488868C (en) | 2007-04-24 | 2007-04-24 | Technology for coarse bromine purifying using hydrobomic acid enriched liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100571968A CN100488868C (en) | 2007-04-24 | 2007-04-24 | Technology for coarse bromine purifying using hydrobomic acid enriched liquid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101045528A CN101045528A (en) | 2007-10-03 |
| CN100488868C true CN100488868C (en) | 2009-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007100571968A Active CN100488868C (en) | 2007-04-24 | 2007-04-24 | Technology for coarse bromine purifying using hydrobomic acid enriched liquid |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102423605A (en) * | 2011-08-26 | 2012-04-25 | 莱州诚源盐化有限公司 | Recovery device and recovery method of tail gas of bromine packing |
| CN103253635B (en) * | 2013-05-23 | 2015-08-12 | 孟宪锋 | A kind of technique extracting bromine from thiabendazole wastewater |
| CN103709004A (en) * | 2014-01-15 | 2014-04-09 | 大连龙泰科技发展有限公司 | Preparation method of 1, 3-propanediol |
| CN104860270B (en) * | 2015-06-12 | 2017-04-26 | 国家海洋局天津海水淡化与综合利用研究所 | Negative pressure distillation bromine-extraction method and equipment |
| CN104944376A (en) * | 2015-06-19 | 2015-09-30 | 天津长芦海晶集团有限公司 | Preparation method for absorbed water for preparing bromine |
| CN105692558A (en) * | 2015-08-26 | 2016-06-22 | 天津长芦海晶集团有限公司 | Method for vaporizing liquid chlorine by using heat energy produced from sulfur combustion |
| CN107892276A (en) * | 2017-12-25 | 2018-04-10 | 潍坊兴泰电气有限公司 | One kind energy-conservation bromine production system |
| CN110562925B (en) * | 2019-09-27 | 2022-07-22 | 金盛海洋科技有限公司 | Method for extracting bromine by using salt production waste liquid |
| CN112340701A (en) * | 2020-11-05 | 2021-02-09 | 天津海晶科技发展有限公司 | Chlorine blowing automatic control process for preparing bromine by acid method |
| CN114702008A (en) * | 2022-03-11 | 2022-07-05 | 潍坊润谱化学有限公司 | Preparation method of bromine |
| CN114933283A (en) * | 2022-04-24 | 2022-08-23 | 天津长芦汉沽盐场有限责任公司 | Production process of bromine from desalted concentrated seawater |
| CN115196598A (en) * | 2022-06-29 | 2022-10-18 | 天津长芦汉沽盐场有限责任公司 | Oxidation distillation tail gas treatment process and system in bromine production process |
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- 2007-04-24 CN CNB2007100571968A patent/CN100488868C/en active Active
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| CN101045528A (en) | 2007-10-03 |
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Effective date of registration: 20190528 Address after: 300452 No. 1 Huantan Road, Binhai New Area, Tianjin Patentee after: Tianjin Hai Jing Technology Development Co., Ltd. Address before: No. 1088 Yingkou Road, Tanggu District, Tianjin 300450 Patentee before: Haijing Group Co., Ltd., Changlu, Tianjin City |