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金属氨基磺酸盐的制备中不可缺少哪些内容?
来源:http://www.jnjrh.com 日期:2019-09-30 发布人:admin
金属氨基磺酸盐,包括镍、钴、锡、铅、铜等数种金属的盐类,它们都是电镀主盐,因其有许多优点,如溶介度大(以氨基磺酸镍为例,它在水中的溶介度比硫酸镍大3.5倍),电镀产品内应力小(如用氨基磺酸镍电镀或电铸,其内应力只需硫酸镍的1/4),电镀或电铸速度特别快(用氨基磺酸镍电镀或电铸的速度比用硫酸镍快4倍),无环境污染等等,而被普遍地用在电镀或电铸工业中。但这些盐类的制造办法有的相当复杂,有的所用原料又相当昂贵,致使产质量量不是低劣,就是本钱过高。
Metal aminosulfonates, including salts of nickel, cobalt, tin, lead and copper, are the main salts for electroplating. They have many advantages, such as high solubility (taking nickel aminosulfonate as an example, its solubility in water is 3.5 times higher than that of nickel sulfate), low internal stress in electroplating products (such as nickel aminosulfonate electroplating or electroforming, its internal stress is only 1/4 of that of nickel sulfate), plating or electroforming speed. Particularly fast (nickel sulfamate electroplating or electroforming is 4 times faster than nickel sulfate), no environmental pollution, etc., and is widely used in electroplating or electroforming industry. However, some of these salts are quite complex, and some of the raw materials used are quite expensive. As a result, the output and quality are not inferior, or the cost is too high.
金属氨基磺酸盐的制备应该留意什么?
What should we pay attention to the preparation of metal sulfonates?
1、碳酸镍法(苏联452543),以氨基磺酸分介碳酸镍制得,因消费碳酸镍时,需求参与多种化工原料,从而带入了大量杂质,影响了产品的质量。
1. Nickel carbonate process (USSR patent 452543), which is made from nickel carbonate separated by Aminosulfonic acid, needs to participate in a variety of chemical raw materials when consuming nickel carbonate, thus bringing in a large number of impurities and affecting the quality of products.
2、催化氧化法,这些办法分别用空气、氧气和过氧化氢在氨基磺酸溶液中,直接将粉状镍催化氧化制取氨基磺酸镍,该法的优点是工艺流程短,产质量量纯。但粉状镍价钱高,故产品本钱也高。
氨基磺酸
2. Catalytic oxidation method, which uses air, oxygen and hydrogen peroxide in Sulfamic Acid solution, directly oxidizes powdered nickel to produce nickel sulfamic acid. The advantages of this method are short process and pure yield. But the price of powdered nickel is high, so the cost of the product is also high.
本创造抑止了上述两种办法的缺陷,采用了硫酸镍与氨基磺酸钡反响,以制取氨基磺酸镍,其反响为(1)由于硫酸钡溶介度极小,此法是一个快速不可逆反响,所得付产品也是一种常用的化工原料,将沉淀分别后,剩下的溶液便是所需求的产品了。
This invention restrains the shortcomings of the above two methods, and uses the reaction of nickel sulfate and barium sulfamate to produce nickel sulfamate. The reaction is (1) Because barium sulfate has a very small solubility, this method is a fast and irreversible reaction. The paid product is also a common chemical raw material. After precipitation, the remaining solution is the required product.
依照相同的办法,以硫酸钴为原料可制取氨基磺酸钴(3)以硫酸亚锡为原料可制取氨基磺酸亚锡(4)以硫酸铜为原料也可制取氨基磺酸铜(5)等等。
According to the same method, cobalt sulfamate (3) can be prepared from cobalt sulfate, stannous sulfate (4) can be prepared from stannous sulfate, copper sulfamate (5) can be prepared from copper sulfate and so on.
本法的优点是消费流程简单,无环境污染,原料价廉,其消费本钱比任何办法都低,而产质量量与氧化法一样。
The advantages of this method are simple consumption process, no environmental pollution, low cost of raw materials, lower consumption cost than any other method, and the quality of production is the same as that of oxidation method.
例1、称取硫酸镍15.4克,溶于200毫升水中,再参与32.9克氨基磺酸钡,反响在搅拌下便疾速中止,待反响完成后,分别出沉淀硫酸钡,剩下的溶液就是氨基磺酸镍,蒸发烘干后可得32.2克Ni(NH2SO3)2·4H2O例2、称取氨基磺酸19.4克溶于200毫升水中,然后再缓缓参与19.7克碳酸钡,在搅拌下反响按下式疾速中止(2)待CO2全部放出后,参与15.4克硫酸镍(好是溶液)硫酸钡便立刻沉淀出来,如例1将沉淀与溶液分别,蒸发烘干后也可得到32.2克Ni(NH2SO3)2·4H2O。上述两反响都是在常温下中止的。
Case 1: Take nickel sulfate 15.4 g, dissolve in 200 ml water, then participate in barium sulfamate 32.9 g. The reaction stops rapidly under stirring. After the reaction is completed, precipitate barium sulfate separately. The remaining solution is nickel sulfamate. After evaporation and drying, 32.2 g Ni (NH2SO3) 2.4H 2O case 2 can be obtained. 19.4 g of sulfamate can be dissolved in 200 ml water, and then slowly participate in 19.7 g of carbonate. Barium, after stirring, the reaction stops at a high speed (2) and all CO2 is released, barium sulfate which participates in 15.4 grams of nickel sulfate (good solution) is precipitated immediately. For example, the precipitation is separated from the solution in case 1. After evaporation and drying, 32.2 grams of Ni (NH2SO3) 2.4H 2O can also be obtained. Both of the above reactions stopped at room temperature.
例3、称取硫酸钴15.5克,溶于200毫升水中,再参与32.9克氨基磺酸钡,反响疾速中止,待反响完成后,分别出沉淀硫酸钡,剩下的溶液就是氨基磺酸钴,蒸发烘干后可得32.2克Co(NH2SO3)2·4H2O(注Ni与Co原子量相差无几)当然,也可称取与例2相同数量的氨基磺酸、碳酸钡以及硫酸钴,按同样的办法中止反响,所得结果相同。
Case 3, weigh 15.5 grams of cobalt sulphate, dissolve in 200 milliliters of water, and then participate in 32.9 grams of amino sulfonic acid barium. The reaction stops quickly. After the reaction is finished, the precipitated barium sulfate is precipitated separately. The remaining solution is cobalt sulphonic acid. After evaporation, it can get 32.2 grams of Co (NH2SO3) 2. 4H2O (Ni and Co atomic weight are almost the same). Of course, we can also call the same amount of amino sulfonic acid and barium carbonate as the 2 cases. Cobalt sulfate stops the reaction in the same way, and the results are the same.