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氨基磺酸是由硫酸原素制造出来的吗?
来源:http://www.jnjrh.com 日期:2019-10-09 发布人:admin
  氨基磺酸是一种重要化工原料,可普遍应用于洗濯行业,用做氯漂稳定剂,电渡助剂,并大量用于食品添加剂如甘美素的合成等。消费氨基磺酸有两大类办法。其中一个大类是由日本东洋高压公司于1950年开发的气相法,该法是从气态SO3和WH3反响生成亚氨基二磺酸铵,经硫酸水解制造氨基磺酸。由于是气相反响,因此设备请求高,而且硫酸耗费量大,付产物多,因此在70年代初投产后不久即中止生产。
  Aminosulfonic acid is an important chemical raw material, which can be widely used in washing industry, as chlorine bleaching stabilizer, electric ferry aid, and a large number of food additives such as the synthesis of glycerin. There are two main ways to consume aminosulfonic acid. One of them is the gas phase method developed by Japan Toyo High Pressure Company in 1950. This method reacts with gaseous SO3 and WH3 to produce ammonium iminodesulfonate, which is hydrolyzed by sulfuric acid to produce sulfamic acid. Because of the gas-phase reaction, the demand for equipment is high, the consumption of sulphuric acid is large and the products paid are large, so production was discontinued shortly after commissioning in the early 1970s.
  另一个大类是以尿素为原料消费氨基磺酸,该法通常有两种工艺,其一是以高浓度发烟硫酸或液态三氧化硫为原料的三氧化硫过量法。美国2408823报导了以液态三氧化硫与尿素作用,再与浓硫酸化合消费氨基磺酸的工艺道路;美国2408492,2851366和2419618等报导了以高浓度发烟硫酸(含40-80%游离SO3)与尿素作用消费氨基磺酸工艺。
氨基磺酸
  The other is the consumption of aminosulfonic acid with urea as raw material. There are usually two processes. One is the excess sulfur trioxide method with high concentration fuming sulfuric acid or liquid sulfur trioxide as raw material. US Patent 2408823 reported the process of consumption of sulfamic acid by the reaction of liquid sulfur trioxide with urea and then with concentrated sulfuric acid; US Patents 2408492, 2851366 and 2419 618 reported the process of consumption of sulfamic acid by the interaction of high concentration fuming sulfuric acid (containing 40-80% free SO3) with urea.
  尿素法消费氨基磺酸的另一种工艺是硫酸过量法,该法运用含游离SO3为22.5%的发烟硫酸即105酸与尿素作用消费氨基磺酸。固然该工艺的反响速度比三氧化硫过量法慢,但因反响中放热仍较剧列,因此必需运用致冷设备,同时该法中的过量硫酸无法循环运用,因此硫酸耗费量大,废液多,消费本钱也较高。
  Another process for consumption of aminosulfonic acid by urea method is sulfuric acid excess method, which uses fuming sulfuric acid containing 22.5% free SO3, i.e. 105 acid, to interact with urea to consume aminosulfonic acid. Although the reaction speed of the process is slower than that of the sulfur trioxide excess method, the heat release in the reaction is still more dramatic, so refrigeration equipment must be used. At the same time, the excess sulfuric acid in the process can not be recycled, so the consumption of sulfuric acid is large, the waste liquid is more, and the cost of consumption is higher.
  上述三氧化硫过量法和硫酸过量法,均需求不同浓度的发烟硫酸或液态三氧化硫,因此普通硫酸厂必需增加发烟硫酸安装或液态三氧化硫安装才干消费氨基磺酸,这在国内现有条件来说是艰难的(例如以湖南为例具有发烟硫酸设备仅有一家工厂,即株洲化工厂),这样影响了氨基磺酸的消费。
  The above-mentioned sulfur trioxide excess method and sulfuric acid excess method require different concentrations of fuming sulfuric acid or liquid sulfur trioxide, so ordinary sulfuric acid plants must increase the installation of fuming sulfuric acid or liquid sulfur trioxide to consume amino sulfonic acid, which is difficult in the existing domestic conditions (for example, in Hunan Province, there is only one factory with fuming sulfuric acid equipment, that is, Zhuzhou Chemical Plant). Samples affect the consumption of aminosulfonic acid.
  本创造的目的是,针对用发烟硫酸消费氨基磺酸(这是目前我国运用的多的消费工艺)需求发烟硫酸安装的缺陷,以降低本钱为目的,提出一种新的工艺消费氨基磺酸,该工艺不但无须发烟硫酸或液态三氧化硫设备,而且还有反响易于控制,收率高,三废少,本钱低等显著特性。
  The purpose of this creation is to reduce the cost of installing fuming sulfuric acid in order to meet the demand of consumption of sulfamic acid with fuming sulfuric acid (which is a multi-consuming process currently used in China), and to propose a new process for consumption of sulfamic acid. This process not only does not need fuming sulfuric acid or liquid sulfur trioxide equipment, but also has easy response control, high yield, less waste and low cost. And other significant characteristics.
  本创造以浓硫酸为溶剂,在三氧化硫转化气的作用下与尿素反响,并可运用一种能吸附和传送三氧化硫的催化稳定剂。
  The invention uses concentrated sulfuric acid as solvent, reacts with urea under the action of sulfur trioxide conversion gas, and uses a catalyst stabilizer capable of adsorbing and transferring sulfur trioxide.
  上述催化稳定剂具有能催化三氧化硫和尿素的磺化反响,同时能降低三氧化硫对尿素的氧化作用,从而进步反响收率。因本工艺过程中三氧化硫的浓度很低,因此反响平稳,操作极为便当,既无须致冷设备也不需求发烟硫酸安装或液态三氧化硫安装,因此简化了消费设备和消费工艺流程,普通的硫酸厂都能运用该工艺消费氨基磺酸。
  These catalytic stabilizers can catalyze the sulfonation reaction of sulfur trioxide and urea, and reduce the oxidation of sulfur trioxide to urea, thereby improving the reaction yield. Because the concentration of sulfur trioxide in the process is very low, the reaction is stable and the operation is very convenient. There is no need for refrigeration equipment or installation of fuming sulfuric acid or liquid sulfur trioxide. Therefore, the consumption equipment and process flow are simplified. The ordinary sulfuric acid plant can use this process to consume sulfamic acid.
  以上内容是有氨基磺酸厂家为大家介绍的,本文来源:http://www.jnjrh.com