CN102530875B - 4%稳定性二氧化氯溶液的生产方法 - Google Patents

4%稳定性二氧化氯溶液的生产方法 Download PDF

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CN102530875B
CN102530875B CN201210003446.0A CN201210003446A CN102530875B CN 102530875 B CN102530875 B CN 102530875B CN 201210003446 A CN201210003446 A CN 201210003446A CN 102530875 B CN102530875 B CN 102530875B
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absorption cell
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absorption
chlorine dioxide
absorption trough
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CN102530875A (zh
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杨来文
杨基林
杨明远
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ANQING WUNING FINE CHEMICALS CO LTD
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Abstract

本发明公开了一种4%稳定性二氧化氯溶液的生产方法,将氯酸钠和1.2倍氯酸钠重量的无铁离子生产水加入反应釜中,搅拌溶解;将过氧化氢和氢氧化钠溶液混合的稳定液加入吸收槽内,再开启吸收槽循环系统和微负压系统;分别将过量的重量浓度为98%的硫酸和重量浓度为27.5%的双氧水慢慢滴加入反应釜中,吸收槽开始吸收通过管道进入的二氧化氯;在吸收槽温度达到30-32℃时,开启与吸收槽连接的搪瓷换热器,循环冷却吸收槽溶液,使吸收槽溶液温度不大于30℃;观察吸收槽的颜色全部变为无色后,整个生产过程结束,此时生产的产品即为大于或等于4%稳定性二氧化氯溶液。本发明具有提高产品浓度,减少投资、安全环保的特点。

Description

4%稳定性二氧化氯溶液的生产方法
技术领域
本发明涉及稳定性二氧化氯溶液在消毒、杀菌、漂白等领域的使用简单、方便、安全,它是一种在市场常规销售和常规生产装置生产的2%基础上的发明、创造。 
背景技术
二氧化氯是目前国际上公认的新一代的高效、广谱、安全的杀菌、保鲜剂,是氯制剂最理想的替代品,在世界发达国家已得到广泛的应用。二氧化氯是一种极易爆炸的强氧化性气体,其制备方法一直是科学界长期寻求解决的问题。由于二氧化氯的氧化、腐蚀性极大,一般金属材料都很难胜任,如304等普通不锈钢等材料都不能满足要求,必须采用TA2、316系列或双相不锈钢等特殊材料才行,因此,为节省投资,现有的常规生产装置只得借助非金属材料进行生产。目前,市场上所销售的二氧化氯消毒剂产品标准(GB/T20783-2006)均为2%的,因此,常规生产装置也都是以2%的标准来生产的。 
十多年来,2%二氧化氯消毒剂应用市场一直在不断发展,现在已很大,也很广,为我国的环保事业发挥了巨大的推动作用。目前,随着经济建设的不断发展,2%二氧化氯消毒剂已不能满足市场的需要,许多客户都已要求4%以上的消毒剂产品,再者,2%二氧化氯消毒剂由于水占的成分太大,给运输、储存都带来极大的不便,为此,需要生产4%的二氧化氯消毒剂,以满足市场的需求。 
发明内容
本发明所要解决的技术问题是提供一种可提高产品浓度,减少投资、安全环保的重量浓度为4%稳定性二氧化氯溶液的生产方法。 
为解决上述技术问题,本发明的4%稳定性二氧化氯溶液的生产方法,其步骤为: 
将氯酸钠和1.2倍氯酸钠重量的无铁离子生产水加入反应釜中,搅拌溶解;将过氧化氢和氢氧化钠溶液混合的稳定液加入吸收槽内,再开启吸收槽循环系统和微负压系统;分别将过量的重量浓度为98%的硫酸和重量浓度为27.5%的双氧水慢慢滴加入反应釜中,吸收槽开始吸收通过管道进入的二氧化氯;在吸收槽温度达到30-32℃时,开启与吸收槽连接的搪瓷换热器,循环冷却吸收槽溶液,使吸收槽溶液温度不大于30℃;观察吸收槽的颜色全部变为无色后,整个生产过程结束,此时生产的产品即为大于或等于4%稳定性二氧化氯溶液。 
二氧化氯消毒剂在制备过程中,气体的吸收是个放热过程,当温度高到一定值时,就影响吸收效果,达不到生产标准浓度,同时,还会造成产品浪费和空气污染。本发明方法采用 的是在现有常规生产规装置上进行改造,再进行4%二氧化氯溶液的生产,即在原吸收槽外,附加一个搪瓷换热器,在系统外强制循环、冷却降温的措施,其结果既可提高产品浓度,又可减少投资、安全环保,使现有常规生产装置也可生产出4%的二氧化氯消毒剂了。 
具体实施方式
二氧化氯生产化学反应式:2NaClO3+2H2SO4+H2O2=2ClO2+2NaHSO4+H2O+O2。 
本发明4%稳定性二氧化氯溶液产品是在2%稳定性二氧化氯溶液产品生产的基础上增加了冷却循环器系统而生产的。具体操作步骤如下: 
1、将准备好的50kg氯酸钠(优等品、符合GB1618-1995要求)和60kg无铁离子生产水加入反应釜中,开启搅拌器进行溶解;将过氧化氢和氢氧化钠溶液混合的稳定液加入吸收槽内,再开启吸收槽循环系统和微负压系统; 
2、分别将60kg重量浓度为98%的硫酸(优等品、符合GB534-89要求)和38kg重量浓度为27.5%的双氧水(优等品、符合GB1616-88要求)慢慢滴加入反应釜中,观察反应釜视镜,颜色由无色透明的变为黄绿色时,吸收槽开始吸收通过管道进入的二氧化氯,吸收槽溶液为稳定液和2%二氧化氯溶液; 
3、观察反应釜和吸收槽的温度值变化和微负压表变化; 
4、在吸收槽温度达到30-32℃时,开启与吸收槽连接的搪瓷换热器(如果夏季,开机时就要开启搪瓷换热器),循环冷却吸收槽溶液,使吸收槽溶液温度不大于30℃; 
5、通过吸收槽视镜观察吸收槽变化,及时补加过氧化氢和氢氧化钠溶液混合的稳定液,以确保二氧化氯气体进行稳定吸收; 
6、吸收槽的颜色全部变为无色后,整个生产过程即可结束,此时生产的产品即为大于或等于4%稳定性二氧化氯溶液产品。 

Claims (1)

1.一种重量浓度4%稳定性二氧化氯溶液的生产方法,其步骤为: 
将氯酸钠和1.2倍氯酸钠重量的无铁离子生产水加入反应釜中,搅拌溶解;将过氧化氢和氢氧化钠溶液混合的稳定液加入吸收槽内,再开启吸收槽循环系统和微负压系统;分别将过量的重量浓度为98%的硫酸和重量浓度为27.5%的双氧水慢慢滴加入反应釜中,吸收槽开始吸收通过管道进入的二氧化氯;在吸收槽温度达到30-32℃时,开启与吸收槽连接的搪瓷换热器,循环冷却吸收槽溶液,使吸收槽溶液温度不大于30℃;通过吸收槽视镜观察吸收槽变化,及时补加过氧化氢和氢氧化钠溶液混合的稳定液,以确保二氧化氯气体进行稳定吸收;观察吸收槽的颜色全部变为无色后,整个生产过程结束,此时生产的产品即为4%稳定性二氧化氯溶液。 
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