公开(公告)号：US06616907B2

公开(公告)日：2003-09-09

申请号：US09876625

申请日：2001-06-07

申请人： M. Fazlul Hoq ,  Mohammed N. I. Khan

发明人： M. Fazlul Hoq ,  Mohammed N. I. Khan

IPC分类号： C01B1114

CPC分类号： C01B11/14

摘要： A novel method of producing metal chlorates is described which involves the reaction of ammonium chlorate with metal carbonates and/or metal bicarbonates. The reaction yields extremely pure metal chlorate, as well as ammonia and carbon dioxide by-products. These by-products combine to produce ammonium bicarbonate. The ammonium bicarbonate may then be reacted with sodium chlorate to produce ammonium chlorate, which may be recycled for use in the production of metal chlorates.

公开(公告)号：US06287533B1

公开(公告)日：2001-09-11

申请号：US09482372

申请日：2000-01-13

申请人： Mohammed N. I. Khan ,  M. Fazlul Hoq

发明人： Mohammed N. I. Khan ,  M. Fazlul Hoq

IPC分类号： C01B1102

CPC分类号： C01B11/026 ,  C01B11/023

摘要： A novel method is described whereby chlorine dioxide is produced through the chemical reduction of ammonium chlorate in an aqueous acidic solution. The reduction reaction takes place at elevated temperatures with or without a catalyst. The reducing agent of this reaction is preferably hydrogen peroxide, glycerol, or sucrose. Chlorine dioxide may be produced in accordance with this invention at a substantially higher rate and in higher yield than with conventional methods using sodium chlorate. Further, the chlorine dioxide produced is substantially chloride-free. The ammonium sulfate by-product of this method has direct use as a fertilizer.

摘要翻译： 描述了一种新的方法，其中通过在酸性水溶液中化学还原氯酸铵来产生二氧化氯。 还原反应在有或没有催化剂的高温下进行。 该反应的还原剂优选为过氧化氢，甘油或蔗糖。 与使用氯酸钠的常规方法相比，可以以相当高的速率和更高的产率制备根据本发明的二氧化氯。 此外，生成的二氧化氯基本上不含氯化物。 该方法的硫酸铵副产物可直接用作肥料。

公开(公告)号：US06190636B1

公开(公告)日：2001-02-20

申请号：US09347827

申请日：1999-07-02

申请人： Mohammed N. I. Khan ,  M. Fazlul Hoq

发明人： Mohammed N. I. Khan ,  M. Fazlul Hoq

IPC分类号： C01B902

CPC分类号： C01D3/04 ,  C01B17/745 ,  C01F11/18

摘要： A novel method is described whereby chlorine and sodium sulfate waste by-products from chemical by-products are recycled to form useful chemicals. Sodium sulfate is first reacted to form a metal sulfate and sodium chloride. The sodium chloride may be used as a chemical feed in chlor-alkali plants. The metal sulfate is then reacted to form an ammonium sulfate or bisulfate which in turn is reacted with chlorine to form sulfuric acid. The sulfuric acid may be used a chemical feed in chlorine dioxide plants and in various other chemical processes.

摘要翻译： 描述了一种新方法，其中来自化学副产物的氯和硫酸钠废弃副产物被再循环以形成有用的化学品。 首先使硫酸钠反应形成金属硫酸盐和氯化钠。 氯化钠可用作氯碱植物中的化学饲料。 然后使金属硫酸盐反应形成硫酸铵或硫酸氢盐，其又与氯反应形成硫酸。 硫酸可以用于二氧化氯工厂和各种其他化学工艺中的化学原料。