公开(公告)号：US06890509B2

公开(公告)日：2005-05-10

申请号：US10062583

申请日：2002-01-31

申请人： Rajinder Nath Vohra ,  Pushpito Kumar Ghosh ,  Maheshkumar Ramniklal Gandhi ,  Himanshu Labhshanker Joshi ,  Hasina Hajibhai Deriya ,  Rohit Harshadray Dave ,  Koushik Halder ,  Kishorkumar Manmohandas Majeethia ,  Sohan Lal Daga ,  Vadakke Puthoor Mohandas ,  Rahul Jasvantrai Sanghavi

发明人： Rajinder Nath Vohra ,  Pushpito Kumar Ghosh ,  Maheshkumar Ramniklal Gandhi ,  Himanshu Labhshanker Joshi ,  Hasina Hajibhai Deriya ,  Rohit Harshadray Dave ,  Koushik Halder ,  Kishorkumar Manmohandas Majeethia ,  Sohan Lal Daga ,  Vadakke Puthoor Mohandas ,  Rahul Jasvantrai Sanghavi

IPC分类号： C01D3/06 ,  C01D3/04 ,  C01D3/08 ,  C01D3/12 ,  C01D3/16 ,  C01F11/46

CPC分类号： C01D3/06 ,  C01D3/16 ,  C01F11/46

摘要： A new process for recovery of Low Sodium Salt from bittern has been described in the present invention, the said process comprising desulphatation of bittern (by-product of salt industry), evaporation of bittern in solar pans and processing of solid mixture with water to produce a mixture of sodium and potassium chlorides and optionally preparing “free flowing” and iodized, by known techniques.

摘要翻译： 在本发明中已经描述了从咸水中回收低钠盐的新方法，所述方法包括卤盐（盐工业的副产物）的脱硫，太阳能锅中的卤水蒸发和与水的固体混合物的加工以产生 氯化钠和氯化钾的混合物，并且通过已知技术任选地制备“自由流动”并碘化。

公开(公告)号：US06740253B2

公开(公告)日：2004-05-25

申请号：US10055814

申请日：2002-01-23

申请人： Rajinder Nath Vohra ,  Pushpito Kumar Ghosh ,  Maheshkumar Ramniklal Gandhi ,  Himanshu Labhshanker Joshi ,  Hasina Hajibhai Deraiya ,  Rohit Harshadray Dave ,  Koushik Halder ,  Kishorkumar Manmohandas Majeethia ,  Sohan Lal Daga ,  Vadakke Puthoor Mohandas ,  Rahul Jasvantrai Sanghavi

发明人： Rajinder Nath Vohra ,  Pushpito Kumar Ghosh ,  Maheshkumar Ramniklal Gandhi ,  Himanshu Labhshanker Joshi ,  Hasina Hajibhai Deraiya ,  Rohit Harshadray Dave ,  Koushik Halder ,  Kishorkumar Manmohandas Majeethia ,  Sohan Lal Daga ,  Vadakke Puthoor Mohandas ,  Rahul Jasvantrai Sanghavi

IPC分类号： C09K300

CPC分类号： C07C231/12 ,  C01B11/20 ,  C01D3/10 ,  C07B39/00 ,  C07C17/02 ,  C07C37/62 ,  Y02P20/582 ,  C07C22/04 ,  C07C233/15 ,  C07C39/367 ,  C07C39/27

摘要： The present invention relates to a non-hazardous brominating reagent from an aqueous alkaline bromine byproduct solution obtained from bromine recovery plant and containing 25 to 35% bromine dissolved in aqueous lime or sodium hydroxide containing alkali bromide and alkali bromate mixture having bromide to bromate stoichiometric ratio in the range of 5:1 to 5.1:1 or 2:1 to 2.1:1 and a pH ranging between 8-12 and also relates to a method for borminating aromatic compounds by using the above brominating agent.

摘要翻译： 本发明涉及一种由溴回收装置得到的碱性溴副产物水溶液的非危险溴化试剂，其中含有25至35％的溴溶解在含有溴化碱和溴酸碱的溴酸碱和碱式溴酸盐混合物的含水石灰或氢氧化钠中，溴化物的化学计量比 在5：1至5.1：1或2：1至2.1：1的范围内，pH范围在8-12之间，并且还涉及通过使用上述溴化剂使芳族化合物起振的方法。

公开(公告)号：US06776972B2

公开(公告)日：2004-08-17

申请号：US10003213

申请日：2001-10-29

申请人： Rajinder N. Vohra ,  Pushpito Kumar Ghosh ,  Vadakke Puthoor Mohandas ,  Himanshu Labhshanker Joshi ,  Hasina Hajibhai Deraiya ,  Rohit Harshadray Dave ,  Koushik Halder ,  Ran Bahadur Yadav ,  Sohan Lal Daga ,  Kishorkumar Manmohandas Majeethia ,  Upendra Padmakant Saraiya

发明人： Rajinder N. Vohra ,  Pushpito Kumar Ghosh ,  Vadakke Puthoor Mohandas ,  Himanshu Labhshanker Joshi ,  Hasina Hajibhai Deraiya ,  Rohit Harshadray Dave ,  Koushik Halder ,  Ran Bahadur Yadav ,  Sohan Lal Daga ,  Kishorkumar Manmohandas Majeethia ,  Upendra Padmakant Saraiya

IPC分类号： C01D300

CPC分类号： C01D3/06 ,  C02F1/5236 ,  C02F2101/10 ,  C02F2103/08 ,  Y02A20/128 ,  Y02A20/129 ,  Y02W10/37

摘要： A new process for recovery of common salt, potassium chloride, concentrated magnesium chloride with enriched bromide, and high purity magnesia from brine in an integrated manner, said process comprises preparation of calcium chloride by reaction of hydrochloric acid generated in the process with limestone, desulfatation of brine with calcium chloride, production of sodium chloride of superior quality in solar pans, solar evaporation of bittern thereby producing carnallite and end bittern, processing carnallite through established processes to produce potassium chloride, recovering end bittern containing highly concentrated magnesium chloride and enriched bromide and calcination of a part of the end bittern after solidification to produce high purity magnesia and hydrochloric acid utilizable in the process.

摘要翻译： 一体化方法从盐水中回收普通盐，氯化钾，浓氯化镁和高纯度氧化镁的新方法，所述方法包括通过与石灰石生成的盐酸反应制备氯化钙，脱硫 盐水与氯化钙生产，在太阳能锅炉中生产优质的氯化钠，卤水太阳能蒸发，从而生产光卤石和终止卤水，通过建立的氯化钾生产工艺处理光卤石，回收含有高浓度氯化镁和富含溴化物的终端卤水， 在固化后煅烧一部分末端卤水以产生在该过程中可利用的高纯度氧化镁和盐酸。