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1. 发明授权

US06231828B1 Process for producing sodium percarbonate 有权
标题翻译：生产过碳酸钠的方法
公开(公告)号：US06231828B1
公开(公告)日：2001-05-15
申请号：US09142940
申请日：1998-12-23
申请人： Alun P. James , Graham R. Horne , Richard Roesler , Lido Signorini , Robert Owen , Soraya Parvaneh , Romano Pardini , Stefano Bigini , Manfred Mathes , Uwe Droste , Pier-Luigi Deli
发明人： Alun P. James , Graham R. Horne , Richard Roesler , Lido Signorini , Robert Owen , Soraya Parvaneh , Romano Pardini , Stefano Bigini , Manfred Mathes , Uwe Droste , Pier-Luigi Deli
IPC分类号： C01B1510
CPC分类号： C11D3/3942 , C01B15/103 , C11D3/128
摘要： Sodium percarbonate is traditionally made in a crystallization process from aqueous hydrogen peroxide and sodium carbonate with recycle of mother liquor in the presence of a substantial concentration of a salting-out agent, conventionally sodium chloride. The invention provides a process intended to be conducted without addition of chloride salting-out agent in which the dissolution step (1) is controlled to restrict the sodium carbonate concentration to below 95%; preferably 60 to 90% of its saturated concentration at a temperature preferably controlled to at most 35° C. and the mole ratio of hydrogen peroxide: sodium carbonate in the reaction vessel is controlled to between 0.7 to 1.2:1, and preferably about 1:1. In some embodiments at least a fraction of the mother liquor introduced into the dissolution tank (1) is obtained by extraction from the reaction vessel (6) and in other embodiments a fraction of the sodium percarbonate (2) is introduced in solution in the mother liquor (4) and a fraction is introduced in particulate form (8) directly into the reaction vessel (6). Large particle sodium percarbonate is provided which has a 7 day aged heat emission at 40° C. of not more than 3 &mgr;W/g measured in a microcalorimeter over 16 hours that is lower than the heat emission from conventionally produced sodium percarbonate employing a chloride salting-out agent.
摘要翻译：传统上，过碳酸钠通过过氧化氢和碳酸钠水溶液的结晶过程在母液中，在大量浓度的盐析剂，常规氯化钠存在下进行。本发明提供了一种在不加入氯化物盐析剂的情况下进行的方法，其中控制溶解步骤（1）以将碳酸钠浓度限制在95％以下; 优选其饱和浓度的60至90％，优选控制在至多35℃，反应容器中过氧化氢：碳酸钠的摩尔比控制在0.7至1.2:1之间，优选约1： 1。在一些实施方案中，通过从反应容器（6）中提取，获得引入溶解槽（1）的至少一部分母液，在其它实施方案中，将过量碳酸钠（2）的一部分引入母体溶液中液体（4）和一部分颗粒形式（8）直接引入反应容器（6）。提供大颗粒过碳酸钠，其在40℃下具有7天以上的热释放度，其在微量热计中在16小时内测量的不超过3μW/ g，低于常规制备的过碳酸钠使用氯化物盐析 -out代理。

2. 发明授权

US06482385B2 Sodium percarbonate and process for producing sodium percarbonate 失效
标题翻译：过碳酸钠和生产过碳酸钠的方法
公开(公告)号：US06482385B2
公开(公告)日：2002-11-19
申请号：US09794122
申请日：2001-02-28
申请人： Alun P. James , Graham R. Horne , Richard Roesler , Lido Signorini , Robert Owen , Soraya Parvaneh , Romano Pardini , Stefano Bigini , Manfred Mathes , Uwe Droste , Pier-Luigi Deli
发明人： Alun P. James , Graham R. Horne , Richard Roesler , Lido Signorini , Robert Owen , Soraya Parvaneh , Romano Pardini , Stefano Bigini , Manfred Mathes , Uwe Droste , Pier-Luigi Deli
IPC分类号： C01B1510
CPC分类号： C11D3/3942 , C01B15/103 , C11D3/128
摘要： Sodium percarbonate is traditionally made in a crystallization process from aqueous hydrogen peroxide and sodium carbonate with recycle of mother liquor in the presence of a substantial concentration of a salting out agent, conventionally sodium chloride. The invention provides a process intended to be conducted without addition of chloride salting-out agent in which the dissolution step is controlled to restrict the sodium carbonate concentration to below 95%, preferably 60 to 90% of its saturated concentration at a temperature preferably controlled to at most 35C. and the mole ratio of hydrogen peroxide:sodium carbonate in the reaction vessel is controlled to between 0.7 to 1.2:1, and preferably about 1:1. In some embodiments at least a fraction of the mother liquor introduced into the dissolution tank is obtained by extraction from the reaction vessel and in other embodiments a fraction of the sodium percarbonate is introduced in solution in the mother liquor and a fraction is introduced in particulate form directly into the reaction vessel. Large particle sodium percarbonate is provided which has a 7 day aged heat emission at 40C. of not more than 3 &mgr;W/g measured in a microcalorimeter over 16 hours that is lower than the heat emission from conventionally produced sodium percarbonate employing a chloride salting-out agent.
摘要翻译：传统上，过碳酸钠通过过氧化氢水溶液和碳酸钠的结晶过程进行，在过量的盐析剂（常规氯化钠）存在下，再循环母液。本发明提供一种在不加入氯化物盐析剂的情况下进行的方法，其中控制溶解步骤以将碳酸钠浓度限制在其饱和浓度的95％以下，优选60％至90％，优选控制在最多35℃。并且将反应容器中过氧化氢：碳酸钠的摩尔比控制在0.7至1.2:1之间，优选约1:1。在一些实施方案中，通过从反应容器中萃取而获得引入溶解槽的至少一部分母液，在其它实施方案中，将过碳酸钠的一部分引入母液中的溶液中，并将一部分以颗粒形式直接进入反应容器。提供了大颗粒过碳酸钠，其在40℃下具有7天的发热。在微量热计中在16小时内测量的，不超过3微瓦/克，低于使用氯化物盐析剂的常规生产的过碳酸钠的散热。

3. 发明授权

US06306811B1 Compositions containing sodium percarbonate 失效
标题翻译：含有过碳酸钠的组合物
公开(公告)号：US06306811B1
公开(公告)日：2001-10-23
申请号：US09142941
申请日：1999-03-30
申请人： Alun P. James , Graham R. Horne , Richard Roesler , Soraya Parvaneh , Romano Pardini , Pier-Luigi Deli
发明人： Alun P. James , Graham R. Horne , Richard Roesler , Soraya Parvaneh , Romano Pardini , Pier-Luigi Deli
IPC分类号： C11D300
CPC分类号： C11D3/128 , C01B15/103 , C11D3/3942
摘要： Sodium percarbonate exhibits a tendency to decompose in built compositions and particularly detergent compositions built with zeolites. The tendency can be ameliorated by selecting sodium percarbonate which intrinsically has a mean particle size of from 500 to 1000 microns and not more than 20% by weight of below 350 microns and has a moisture pick-up when measured in a test at 80% relative humidity and 32° C. after 24 hours of not greater than 30 g/1000 g sample. A suitable sodium percarbonate can be made most conveniently by crystallisation from a bulk saturated solution of sodium percarbonate in a crystalliser/classifier that does not employ a conventional chloride salting-out agent.
摘要翻译：过碳酸钠表现出在内置组合物中分解的倾向，特别是用沸石构成的洗涤剂组合物。通过选择过碳酸钠，其本质上具有500至1000微米且不大于20重量％低于350微米的平均粒度可以改善倾向，并且在80％相对的测试中测量时具有吸湿性湿度为32℃，24小时后不大于30g / 1000g样品。通过在不使用常规氯化物盐析剂的结晶器/分选机中从过饱碳酸钠的大量饱和溶液中结晶，可以最方便地制备合适的过碳酸钠。

4. 发明授权

US06267934B1 Process for the manufacture of persalt particles 有权
标题翻译：制造过滤粒子的方法
公开(公告)号：US06267934B1
公开(公告)日：2001-07-31
申请号：US09253546
申请日：1999-02-22
申请人： Romano Pardini , Soraya Parvaneh , Corrado Baccani
发明人： Romano Pardini , Soraya Parvaneh , Corrado Baccani
IPC分类号： B01D902
CPC分类号： C01B15/103 , B01D9/0013 , B01D9/0036 , B01D9/005 , B01D9/0059 , B01D9/0063
摘要： The present invention relates to an apparatus for the continuous manufacture of solid particles of alkali metal persalts by reaction of an aqueous hydrogen peroxide solution with an aqueous solution of an alkali metal salt and crystallization of the persalt. The persalt is formed in a crystallizer classifier, which is made up of stirred region and a growth region for the persalt crystals a non-stirred clarifying region for the solution and a classification region for the particles obtained by elutriation in a liquid stream withdrawn in the clarifying region.
摘要翻译：本发明涉及一种用于通过过氧化氢水溶液与碱金属盐水溶液的反应和持续的碱性金属皂的结晶连续制造固体颗粒的装置。在结晶器分选机中形成透明质，其由搅拌区域和用于溶液的非搅拌澄清区域的搅拌区域和生长区域组成，并且通过在该溶液中抽出的液体流中淘析获得的颗粒的分类区域澄清地区。

5. 发明授权

US5690701A Process for the manufacture of particles of coated persalts 失效
标题翻译：用于制造涂覆的钵的颗粒的方法
公开(公告)号：US5690701A
公开(公告)日：1997-11-25
申请号：US531950
申请日：1995-09-21
申请人： Stefano Bigini , Romano Pardini , Soraya Parvaneh
发明人： Stefano Bigini , Romano Pardini , Soraya Parvaneh
IPC分类号： C01B15/043 , B01J2/00 , C01B15/00 , C01B15/10 , C11D3/39 , C01B31/24
CPC分类号： B01J2/003 , C01B15/005 , C01B15/106
摘要： Continuous process for the manufacture of solid alkali metal persalt particles coated by crystallization of a supersaturated aqueous solution of persalts and covering of the persalt particles in a post-crystallization vessel into which at least one coating agent is introduced and in which crystallization of the coating agent around the persalt particles is carried out under controlled temperature and stirring conditions.
摘要翻译：用于制造通过过饱和水溶液结晶涂覆的固体碱金属色素颗粒的连续方法，并且在引入至少一种涂布剂的后结晶容器中覆盖所述观察剂颗粒，并且其中涂覆剂的结晶在控制温度和搅拌条件下进行周边的粒子。

6. 发明授权

US5906660A Process for the manufacture of persalt particles 失效
标题翻译：制造过滤粒子的方法
公开(公告)号：US5906660A
公开(公告)日：1999-05-25
申请号：US856820
申请日：1997-05-15
申请人： Romano Pardini , Soraya Parvaneh , Corrado Baccani
发明人： Romano Pardini , Soraya Parvaneh , Corrado Baccani
IPC分类号： C01B15/043 , B01D9/00 , C01B15/00 , C01B15/055 , C01B15/10 , C11D3/39 , C11D7/18 , C01D1/30 , C01B31/24
CPC分类号： C01B15/103 , B01D9/0013
摘要： Continuous process for the manufacture of solid particles of alkali metal persalts by reaction of an aqueous hydrogen peroxide solution with an aqueous solution of an alkali metal salt and crystallization of the persalt formed in a crystallizer-classifier comprising a stirred formation and growth region for the persalt crystals, a nonstirred clarifying region for the solution and a classification region for the particles obtained by elutriation in a liquid stream withdrawn in the clarifying region.Plant for manufacturing the said particles.
摘要翻译：用于通过过氧化氢水溶液与碱金属盐水溶液的反应和在结晶器分级器中形成的含有搅拌形成和生长区域的沉淀物的结晶而制造碱金属皂的固体颗粒的连续方法晶体，用于溶液的非搅拌澄清区域和通过在澄清区域中抽出的液体流中淘析获得的颗粒的分类区域。用于制造所述颗粒的装置。

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