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101. 发明专利

JP5517439B2 Method and apparatus for manufacturing a nitrogen compound 有权
公开(公告)号：JP5517439B2
公开(公告)日：2014-06-11
申请号：JP2008307549
申请日：2008-12-02
申请人：学校法人トヨタ学園 , 日本プラズマトリート株式会社
发明人：民夫原 , 雄介久保田 , 和隆古賀
IPC分类号： C01C1/04 , C01B21/22 , C01B21/32 , C01B21/34 , C01B21/36 , C01B21/38 , C01B21/50

102. 发明专利

JP2013234979A Measuring method for nitrite ion concentration and manufacturing method for nitrous acid-treated modified body 审中-公开
标题翻译：硝酸处理改性体系硝酸离子浓度测定方法及制备方法
公开(公告)号：JP2013234979A
公开(公告)日：2013-11-21
申请号：JP2012109246
申请日：2012-05-11
申请人： Toray Ind Inc , 東レ株式会社
发明人： AZUMA MASAKI , YOSHINO TAKASHI , OGAWA TAKASHI
IPC分类号： G01N31/00 , C01B21/50
摘要： PROBLEM TO BE SOLVED: To provide a measuring method for nitrite ion concentration in which the nitrite concentration in a nitrous acid solution can be accurately and speedily measured even under a condition in which a compound which reacts with nitrous acid such as a compound having an amino group is contained in the nitrous acid solution.SOLUTION: There is provided a measuring method for nitrite ion concentration that measures the nitrite ion concentration in a nitrous acid solution containing a nitrous acid and a nitrous acid reactive compound, the measuring method for nitrite ion concentration including calculating the nitrite ion concentration in the nitrous acid solution based upon the difference between the absorbance of a first solution prepared by adding alkali equivalent to the mol number of hydroxide ions which is 1.5 or more times as large as the mol number of hydrogen ions of the nitrous acid solution to the nitrous acid solution and the absorbance of a second solution prepared by adding a strong acid to the nitrous acid solution up to pH of below 2, and then adding alkali equivalent to the mol number of hydroxide ions which is 1.5 or more times as large as the mol number of hydrogen ions of the nitrous acid solution after the addition of the strong acid.
摘要翻译：要解决的问题：提供一种亚硝酸根离子浓度的测定方法，其中，即使在与亚硝酸反应的化合物如具有氨基的化合物的条件下，也能够准确，快速地测定亚硝酸盐浓度本发明提供了亚硝酸根离子浓度测定方法，其测量含有亚硝酸和亚硝酸反应性化合物的亚硝酸溶液中的亚硝酸根离子浓度，亚硝酸根离子浓度的测定方法包括计算亚硝酸溶液中的亚硝酸根离子浓度，其基于通过添加碱当量与氢离子摩尔数的摩尔数相比而制备的第一溶液的吸光度之差，该氢氧根离子的摩尔数为氢离子的摩尔数的1.5倍以上亚硝酸溶液中的亚硝酸溶液和第二溶液的吸光度制备通过向亚硝酸溶液中加入强酸至pH低于2，然后加入等于硝酸溶液的氢离子摩尔数的1.5倍或更多倍的氢氧根离子的摩尔数的碱当量后加入强酸。

103. 发明专利

JP4225523B2 Zinc nitrite solution and a method of manufacturing the same 有权
公开(公告)号：JP4225523B2
公开(公告)日：2009-02-18
申请号：JP2000141893
申请日：2000-05-15
申请人：日本化学工業株式会社
发明人：豊木ノ瀬 , 高広永山 , 透畠
IPC分类号： C23C22/00 , C23C22/86 , C01B21/50 , C01G9/00 , C23C22/13
CPC分类号： C01B21/50

104. 发明专利

JP4138401B2 Lithium nitrite aqueous solution and a method of manufacturing the same 有权
公开(公告)号：JP4138401B2
公开(公告)日：2008-08-27
申请号：JP2002245412
申请日：2002-08-26
申请人：日本化学工業株式会社
发明人：豊木ノ瀬 , 透畠
IPC分类号： B01D61/44 , C01B21/50 , C25B1/14

105. 发明专利

JP2005350326A Method of preparing lithium nitrite aqueous solution 有权
标题翻译：制备硝酸锂水溶液的方法
公开(公告)号：JP2005350326A
公开(公告)日：2005-12-22
申请号：JP2004175566
申请日：2004-06-14
申请人： Honjo Chemical Corp , 本荘ケミカル株式会社
发明人： FUJIWARA TERUO , FUKUSHIMA MASAAKI
IPC分类号： C01B21/50
摘要： PROBLEM TO BE SOLVED: To provide a method of preparing a lithium nitrite aqueous solution by which the high concentration lithium nitrite aqueous solution is prepared by a chemical reaction in water using easily obtainable raw materials without necessitating a special reaction apparatus.
SOLUTION: Calcium nitrite and lithium hydroxide are made to react with each other in water and by-produced calcium hydroxide is removed from the resultant reaction mixture by solid-liquid separation. As a preferable embodiment, the lithium nitrite aqueous solution having 40 wt.% concentration is easily obtained by removing by-produced calcium hydroxide from the resultant reaction mixture by solid-liquid separation to obtain lithium nitrite aqueous solution after calcium nitrite and lithium hydroxide reacted with each other in water, adding calcium nitrite and lithium hydroxide into the lithium nitrite aqueous solution and after reacting, removing by-produced calcium hydroxide from the resultant reaction mixture by solid-liquid separation.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种制备亚硝酸锂水溶液的方法，通过该方法可以使用容易获得的原料在水中的化学反应制备高浓度亚硝酸锂水溶液，而不需要特殊的反应装置。解决方案：使亚硝酸钙和氢氧化锂在水中彼此反应，并通过固液分离从所得反应混合物中除去副产氢氧化钙。作为优选实施方案，通过固溶分离从所得反应混合物中除去副产氢氧化钙容易获得浓度为40重量％的亚硝酸锂水溶液，得到亚硝酸钙和氢氧化锂与在亚硝酸锂水溶液中加入亚硝酸钙和氢氧化锂，反应后，通过固液分离从所得反应混合物中除去副产氢氧化钙。版权所有（C）2006，JPO＆NCIPI

106. 发明专利

JP2004083323A Nickel nitrite aqueous solution and production method therefor 有权
公开(公告)号：JP2004083323A
公开(公告)日：2004-03-18
申请号：JP2002245411
申请日：2002-08-26
申请人： Nippon Chem Ind Co Ltd , 日本化学工業株式会社
发明人： KONOSE YUTAKA , HATAKE TORU
IPC分类号： C01B21/50 , C01G53/00
摘要： PROBLEM TO BE SOLVED: To provide a nickel nitrite aqueous solution which has the reduced content of sodium ions as impurities, does not substantially contain sulfuric acid ions and enables surface treatment for metal with extremely satisfactory efficiency.
SOLUTION: As the content of impurities in the solution when the concentration of the nickel nitrite [Ni(NO
2 )
2 ] aqueous solution is expressed in terms of 10 wt.% as NO
2 , the concentration of sodium (Na) ions is 200 to 2,000 ppm, and the concentration of sulfuric acid (SO
4 ) ions is ≤20 ppm. The nickel nitrite aqueous solution can be produced by using a nickel compound and an alkali nitrite as raw materials, and causing electrolytic synthesis by metathesis reaction with an ion exchange membrane as a diaphragm.
COPYRIGHT: (C)2004,JPO

107. 发明专利

JP2701305B2 失效
公开(公告)号：JP2701305B2
公开(公告)日：1998-01-21
申请号：JP8347788
申请日：1988-04-05
IPC分类号： C01B21/50

108. 发明专利

JPS63305920A RECOVERY OF NO FROM WASTE GAS GENERATED AT TIME OF PRODUCTION OF AMMONIUM SULFITE 失效
公开(公告)号：JPS63305920A
公开(公告)日：1988-12-13
申请号：JP12404288
申请日：1988-05-23
申请人： BAYER ANTWERPEN NV
发明人： RUKU BAN ROIEN , ROORANTO PUTOSEISU , UIRII BAN HERUKU , DOMIEN SURUITSU , ROBERUTO PIPE
IPC分类号： B01D53/34 , B01D53/56 , B01D53/62 , B01D53/77 , C01B21/14 , C01B21/24 , C01B21/50

109. 发明专利

JPS6246907A METHOD FOR SYNTHESIZING HIGH PURITY ALKALI SALT OF TETRANITRONITROSYLRUTHENATE (M2RUNO(NO2)4OH-2H2O) 失效
公开(公告)号：JPS6246907A
公开(公告)日：1987-02-28
申请号：JP18704485
申请日：1985-08-26
申请人： JAPAN ATOMIC ENERGY RES INST
发明人： SATO TADASHI
IPC分类号： C01B21/082 , C01B21/50
摘要： PURPOSE:To simply produce the titled high purity salt in a high yield by reacting RuCl3.3H2O with an aqueous soln. of an alkali nitrite or NH4NO2 after dissolution in the soln. and purifying the resulting crude salt with a volatile org. solvent. CONSTITUTION:RuCl3.3H2O is directly reacted with an aqueous soln. or slurry of an alkali nitrite such as NaNO2 or KNO2, or NH4NO2 at ordinary temp. - the b.p. In case of NaNO2, Na2RuNO(NO2)4OH is produced by a reaction represented by the equation. The resulting crude salt is dissolved in a volatile org. solvent such as actone or ethanol, and after alkali hydrochloride and nitrate as by-products and the unreacted alkali nitrite are separated as undissolved matter, the org. solvent is evaporated. The titled high purity salt can simply be deposited in a high yield.

110. 发明专利

JPS61291409A PRODUCTION OF AQUEOUS SOLUTION OF LITHIUM NITRITE HAVING HIGH PURITY 失效
公开(公告)号：JPS61291409A
公开(公告)日：1986-12-22
申请号：JP13154185
申请日：1985-06-17
申请人： NISSAN CHEMICAL IND LTD
发明人： HORI TAKAHIRO , TSUCHIDA MIKIO
IPC分类号： C01B21/50
摘要： PURPOSE:To produce the titled aqueous solution having low impurity content in high efficiency, only by the addition of a simple filtration process, by supplying an aqueous slurry of LiOH with a gas produced by oxidizing ammonia with air and filtering the obtained liquid at a specific pH level. CONSTITUTION:Ammonia is oxidized with air to obtain a gas containing nitrogen oxide having an NO/NO2 molar ratio of 1.2-2.0 and total gas concentration (NO+NO2) of 1-10vol% and free of condensed water. The gas of 10-100 deg.C is supplied to an aqueous slurry of LiOH containing 1-50wt% LiOH.H2O and having a temperature of 10-100 deg.C and the supply of the gas is stopped before the pH of the slurry reaches 7.0. The obtained liquid is filtered and the filtrate is recovered to obtain the objective aqueous solution in high efficiency. The solution is used as it is or after the addition of other components as an additive for cement, mortar, concrete, etc., or as an agent for the impregnation treatment of the surface of concrete, etc.

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