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365体育app厂家:溴素生产要注意的事项

2021-09-15

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  365体育app厂家认为溴生产中涉及的物质主要有溴、氯,包括中间产物如二氧化硫、溴化氢等。都是有毒物质。其中,被广泛使用的氯是一种有毒药物。物质的危险性决定了整个装置的主要危险有害因素是中毒事故。此外,还有机械伤害、高处坠落、物体撞击、噪音伤害等危险有害因素。

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  1)365体育app厂家认为液氯通过液氯汽化器被热水汽化,汽化后的lv气经过lv气缓冲罐后与盐水混合。如果液氯汽化器热水箱中的热水温度过高,lv气的汽化量会增加,可能导致液氯汽化器和lv气缓冲罐超压。严重时可能导致液氯汽化器超压破裂,造成lv气泄漏和人员中毒事故。

  2)365体育app厂家认为lv气进入蒸馏塔与一级酸反应,游离溴再次被置换生成盐酸。lv气流量过大,导致反应产物中溴中氯严重,影响产品质量。同时,如果产品泄漏,还可能导致lv气中毒事故。

  3)蒸馏塔使用蒸汽作为气源。如果蒸馏塔温度控制失效,蒸汽流量低,提溴效果差;如果蒸汽流量大,可能导致蒸馏塔超温、超压,严重时可能造成设备损坏和泄漏事故。

  365体育app厂家认为溴是一种强氧化剂。在有水的情况下,溴可以将二氧化硫氧化成硫酸,生成溴化氢。氨、尿素等氮化物在碱性介质中被溴氧化生成氮气;在气相中,溴将氨氧化成游离氮,生成溴化铵白烟,常用于检查液氨设备和管道是否泄漏。在次溴酸存在下,溴比氯更稳定。在阳光下,如果次溴酸存在,它比lv气更稳定。有毒且具有强腐蚀性。

  365体育app厂家认为即使溴蒸气浓度很低,也会灼伤nian膜,引起咳嗽、nian膜分泌增多、流鼻血、头晕等症状。液溴对皮肤的腐蚀性很强,会形成难以愈合的ba痕。空气中溴蒸气的容许浓度不得超过0.5mg/m3.否则30 ~ 40 min中毒会致命。工人必须穿戴防护设备,如工作服、橡胶手套、围裙、护目镜和防毒面具等。避免接触皮肤。皮肤灼伤时用大量清水冲洗,然后涂药膏,送医院治疗。

  365体育app厂家认为溴是一种重要的化工原料,广泛用于阻燃剂、灭火剂、制冷剂、感光材料、医药、农药、油田等行业。溴的自然资源主要存在于海水、地下浓缩卤水、古代海洋沉积物、岩盐矿山和盐湖水中。由于海水量巨大,海水中的溴含量占地球上总资源的99%。海水中的溴浓度约为65ppm,而岩盐矿山中的溴含量仅为0.1ppm,有些地区地下卤水中的溴含量为200 ~ 300 ppm。在国外一些盐湖水中,溴的浓度高达2000~12000ppm。

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