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公开(公告)号：US20070050949A1
公开(公告)日：2007-03-08
申请号：US10556604
申请日：2004-05-19
申请人： Paul Demilie
发明人： Paul Demilie
IPC分类号： C01D7/24
摘要： Process for the manufacture of sodium carbonate crystals comprising: the addition of solid sodium carbonate (1) to an aqueous solution comprising sodium bicarbonate and sodium carbonate; the crystallization and the separation of sodium sesquicarbonate crystals; (B, C) the crystallization of sodium carbonate crystals, (E) the amount of sodium carbonate added being adjusted so that the crystallization of sesquicarbonate crystals can be carried out without preliminary evaporation of the aqueous suspension.
摘要翻译： 包括：将固体碳酸钠（1）加入到包含碳酸氢钠和碳酸钠的水溶液中的方法; 倍半碳酸钠晶体的结晶和分离; （B，C）碳酸钠晶体的结晶，（E）调节碳酸钠的添加量，使得倍半碳酸盐晶体的结晶可以在不预先蒸发水性悬浮液的情况下进行。
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公开(公告)号：US07682588B2
公开(公告)日：2010-03-23
申请号：US10556604
申请日：2004-05-19
申请人： Paul Demilie
发明人： Paul Demilie
IPC分类号： C01D7/12
摘要： Process for the manufacture of sodium carbonate crystals comprising: the addition of solid sodium carbonate (1) to an aqueous solution comprising sodium bicarbonate and sodium carbonate; the crystallization and the separation of sodium sesquicarbonate crystals; (B, C) the crystallization of sodium carbonate crystals, (E) the amount of sodium carbonate added being adjusted so that the crystallization of sesquicarbonate crystals can be carried out without preliminary evaporation of the aqueous suspension.
摘要翻译： 包括：将固体碳酸钠（1）加入到包含碳酸氢钠和碳酸钠的水溶液中的方法; 倍半碳酸钠晶体的结晶和分离; （B，C）碳酸钠晶体的结晶，（E）调节碳酸钠的添加量，使得倍半碳酸盐晶体的结晶可以在不预先蒸发水性悬浮液的情况下进行。
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3.发明授权
公开(公告)号：US4061718A
公开(公告)日：1977-12-06
申请号：US628960
申请日：1975-11-05
申请人： Jean Verlaeten , Paul Demilie
发明人： Jean Verlaeten , Paul Demilie
摘要： A method for the recovery of ammonia from liquor from the filters of ammonia-soda plants, which contains free ammonia and ammonium chloride. In this method the liquor is heated to release the free ammonia, and the remaining liquor is then treated successively in a prelimer with lime in an amount insufficient to decompose the whole part of the ammonium chloride and in a still with steam and an alkali metal hydroxide in an amount sufficient to decompose the remaining part of ammonium chloride.
摘要翻译： 一种从含有游离氨和氯化铵的氨汽提器的过滤器中回收氨的方法。 在这种方法中，将液体加热释放游离氨，然后以预先的方式连续处理剩余的液体，其中石灰的量不足以分解全部氯化铵，还有蒸汽和碱金属氢氧化物 其量足以分解剩余部分的氯化铵。
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4.发明授权
公开(公告)号：US4022871A
公开(公告)日：1977-05-10
申请号：US639602
申请日：1975-12-10
申请人： Paul Demilie
发明人： Paul Demilie
摘要： Process for the fabrication of boric acid by carboammoniac attack of a borate mineral, involving subjecting a borosodium ore, in its natural state or previously refined, and in a finely ground condition, to a treatment in an aqueous medium with carbonic anhydride and ammonia in a manner to precipitate sodium bicarbonate which is separated. The remaining mother liquor is cooled to obtain crystals of ammonium borate which are separated, redissolved, the obtained solution being decomposed by thermal means in order to form ammonia which is recycled to the ore treatment and a boric acid solution from which the acid is separated by crystallization. This process permits obtaining two valuable products: NaHCO.sub.3 and H.sub.3 BO.sub.3. When the ore is preliminarily refined, more effective utilization can be made of the ammonia.
摘要翻译： 通过硼酸盐矿物的碳水平攻击来制造硼酸的方法，包括将硼酸钠矿石以其天然状态或先前精炼并在细磨的状态下在含有碳酸酐和氨的水性介质中进行处理 沉淀分离的碳酸氢钠。 将剩余的母液冷却以得到硼酸铵晶体，再分离，再溶解，所得溶液通过加热方式分解，形成再循环至矿石处理的氨，并将酸分离的硼酸溶液 结晶。 该方法允许获得两种有价值的产物：NaHCO 3和H 3 BO 3。 当矿石预先精炼时，可以更有效地利用氨。
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