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金属粉与氨基磺酸直接反应研究技术
来源:http://www.jnjrh.com 日期:2019-07-03 发布人:admin
各种金属(镍、钴、铜、铬等)氨基磺酸盐普遍地用于电镀工业中,它与普通的硫酸可卡因、氯化物、氰氢酸和硅氟化物电镀液相比,具有操作简单、易控、堆积速度快、毒性小及腐蚀低等特性,而且电镀产品光泽美观内应力小,其晶粒构造和延展性能都非常优秀。特别是氨基横酸镇(分子式Ni (NH2SO3)2 英文名Nickel sulfamate, CAS : 13770-89-3,EINECS :237-396-1,物化性质透明深绿色溶液)浓缩液是近年来国际上开展较快的一种·电镀镍主盐,能取得比传统的硫酸镍镀液机械性能更优秀的金属镀层,因其内应力低、堆积速度快,而在汽车、摩托车、冶金、电子、镍网、铝合金等行业得到了普遍应用。随着科技开展,对氨基磺酸镍(NICKEL SULFAMATE SOLUTION)的浓度、纯度请求越来越高,质量好的氨基磺酸镍浓缩液无需任何添加剂就能产生低应力之镀层,如配合添加剂的运用,则能得到外观更佳,内应力更低的镀层。
Aminosulfonates of various metals (nickel, cobalt, copper, chromium, etc.) are widely used in electroplating industry. Compared with ordinary electroplating solutions of cocaine sulfate, chloride, cyanhydric acid and silicon fluoride, they are characterized by simple operation, easy control, fast accumulation, low toxicity and low corrosion. Moreover, the electroplating products have beautiful gloss and low internal stress. Its grain structure and ductility are excellent. Especially, the concentrated solution of NH2SO3 2 (Nickel sulfamate, CAS: 13770-89-3, EINECS: 237-396-1, transparent dark green solution) is a kind of main salt of electroplating nickel in recent years. It can obtain metal coating with better mechanical properties than traditional nickel sulfate plating solution because of its inner structure. Low stress and high stacking speed are widely used in automobile, motorcycle, metallurgy, electronics, nickel mesh, aluminum alloy and other industries. With the development of science and technology, the requirement for the concentration and purity of nickel sulfamate (NICKEL SULFAMATE SOLUTION) is getting higher and higher. Nickel sulfamate concentrate with good quality can produce low stress coating without any additives. If used with additives, the coating with better appearance and lower internal stress can be obtained.
、用镍粉制氨基磺酸镍;2、由碳酸镍制氨基磺酸镍;3、由氢氧化镍制氨基磺酸镍。4、萃取法。目前大多采用碳酸镍和氢氧化镍制备氨基磺酸镍,而碳酸镍又是由金属镍与强酸反响后,再与碳酸铵反响制成。氢氧化镍则是金属镍与氢氧化钠反响后制成。
Nickel sulfamate is made from nickel powder; nickel sulfamate is made from nickel carbonate; nickel sulfamate is made from nickel hydroxide. 4. Extraction method. At present, nickel sulfamate is mostly prepared by nickel carbonate and nickel hydroxide, and nickel carbonate is made by reacting nickel with strong acid and then with ammonium carbonate. Nickel hydroxide is made by reacting nickel with sodium hydroxide.
—种用含镍物料萃取转型消费镍盐的办法,触及一种在镍盐产品制备过程中运用硫酸镍介质溶液萃取转型技术。特别是对氯化镍和氨基磺酸镍的制备。将净化后的硫酸镍溶液用P2tl4萃取剂萃取,使主金属镍进入有机相,再以不同的酸溶液反萃有机相,将镍转型为其它镍盐溶液,再经过深度除杂、蒸发结晶等工序消费成为其它镍盐产品。中国专利201010573261.4,《萃取法制备氨基磺酸镍工艺》将高冰镍经二段逆流浸出液经萃杂萃取除去杂质后的萃余液作为原液,在与特定比例的有机相和氢氧化纳溶液构成的钠皂发作萃取反响;负载有机相经酸洗后,用氨基磺酸做反萃剂制得氨基磺酸镍溶液。
A method of using nickel-containing materials to extract and convert nickel salts to consume nickel salts, and a transformation technology of nickel sulfate solution extraction in the preparation of nickel salts. Especially for the preparation of nickel chloride and nickel sulfamate. The purified nickel sulphate solution was extracted with P2tl4 extractant, and the main nickel metal entered the organic phase. Then the nickel was stripped from the organic phase with different acid solutions. The purified nickel sulphate solution was transformed into other nickel salt solutions, and then consumed into other nickel salt products through deep impurity removal, evaporative crystallization and other processes. China Patent 201010573261.4, "Extraction Process for the Preparation of Nickel Aminosulfonate" takes the residual liquid of high nickel matte after impurity removal by two-stage countercurrent extraction as the original solution, and the sodium soap composed of a specific proportion of organic phase and NaOH solution has an extraction response; the loaded organic phase is acid washed and then made of aminosulfonic acid. Nickel sulfamate solution was prepared by stripping agent.
此溶液经蒸发浓缩离心等工序后,产出氨基磺酸镍废品。由此可见氨基磺酸镍的消费过程中,直接或间接地运用了强酸或强碱,固然反响速度快,招致氨基磺酸镍杂质增加;为进步产质量量,不得不采用各种手腕除杂,使得消费过程愈加繁锁,本钱加大。直接用镍粉与氨基磺酸反响,消费氨基磺酸镍无疑是一种既简单、产品纯度又高的办法,但是由于镍和氨基磺酸镍的特性,其反响速度极慢,简直无法发觉,事实上无法应用。为处理这个问题,有人采用过氧化氢作为引发剂,在不时参加过氧化氢的同时将氨基磺酸、金属粉与水混合制备氨基磺酸镍。
氨基磺酸
After evaporation, concentration and centrifugation, nickel sulfamate wastes are produced. It can be seen that strong acid or alkali are directly or indirectly used in the consumption process of nickel aminosulfonate, although the reaction speed is fast and the impurities of nickel aminosulfonate are increased. In order to improve the production and quality, various kinds of wrists have to be used to remove impurities, which makes the consumption process more complicated and increases the cost. Direct use of nickel powder and sulfamic acid reaction, consumption of nickel sulfamic acid is undoubtedly a simple, product purity and high method, but because of the characteristics of nickel and nickel sulfamic acid, its response speed is very slow, it can hardly be detected, in fact, it can not be applied. In order to solve this problem, hydrogen peroxide was used as initiator to prepare nickel sulfamate by mixing sulfamic acid, metal powder and water at the same time of participating in hydrogen peroxide from time to time.
《一种氨基磺酸镍的制备办法》在金属镍与氨基磺酸直接反响中,参加一种引发剂,引发剂参加量为金属镍重量的O. 5-10wt%,金属镍氨基磺酸水=I  3 4  7 8,处于搅拌状态中再迟缓参加H2O2,使当量镍完整反响。引发剂为盐酸、硫酸或磷酸。由此可见,单纯滴加过氧化氢,反响效果也不是非常理想,不得不在反响过程中参加盐酸、硫酸或磷酸促进反响,这样又产生了杂质。
A Method for the Preparation of Nickel Aminosulfonate Participates in an initiator in the direct reaction between nickel and sulfamic acid. The initiator is O.5-10wt% of the weight of nickel, and the water of nickel sulfamic acid equals I 347 8. It slowly participates in H_2O_2 in the stirring state to make the equivalent nickel fully respond. Initiators are hydrochloric acid, sulfuric acid or phosphoric acid. It can be seen that the reaction effect of hydrogen peroxide dropping alone is not very ideal, so we have to take part in hydrochloric acid, sulphuric acid or phosphoric acid to promote the reaction in the reaction process, which produces impurities.
相关标签:氨基磺酸