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1. 发明授权

US5980717A Recovery process in a pulp mill 失效
标题翻译：纸浆厂的回收过程
公开(公告)号：US5980717A
公开(公告)日：1999-11-09
申请号：US999430
申请日：1997-12-29
申请人： Roland Pudas , Magnus Linsten , Roy Hammer-Olsen , Bjorn Svedin , Ingrid Velander
发明人： Roland Pudas , Magnus Linsten , Roy Hammer-Olsen , Bjorn Svedin , Ingrid Velander
IPC分类号： D21C11/00 , D21C11/06 , B01D59/42
CPC分类号： D21C11/066 , D21C11/005
摘要： A substantial and increasing problem with the pulping chemical recovery system, is the presence of chloride and potassium in the spent liquor entering the recovery boiler. Chloride and potassium increase the stickiness of carryover deposits and dust particles to the recovery boiler tubes, which accelerate fouling and plugging in the upper part of the recovery boiler. The present invention relates to a process by which the content of potassium ions in a recovery system for pulping chemicals can be reduced. The process comprises bringing spent liquor to a recovery boiler, burning said spent liquor, collecting precipitator dust formed, forming a solution by dissolving the precipitator dust in a liquid, where the solution of precipitator dust is subjected to a treatment with an inorganic ion exchange material in order to remove at least a part of the potassium therein.
摘要翻译：制浆化学回收系统的一个重大和日益严重的问题是进入回收锅炉的废液中存在氯化物和钾。氯化钾和钾离子增加了回收沉积物和灰尘颗粒对回收锅炉管的粘性，加速了回收锅炉上部的结垢和堵塞。本发明涉及一种可以减少用于制浆化学品的回收系统中的钾离子含量的方法。该方法包括将废液倒入回收锅炉中，燃烧废液，收集除尘器灰尘，通过将除尘器粉尘溶解在液体中形成溶液，将沉淀粉尘的溶液用无机离子交换材料进行处理以除去其中至少一部分钾。

2. 发明授权

US5886216A Method for producing a chemical product 失效
标题翻译：化学品生产方法
公开(公告)号：US5886216A
公开(公告)日：1999-03-23
申请号：US791144
申请日：1997-01-30
申请人： Roland Pudas
发明人： Roland Pudas
IPC分类号： C07C409/26 , C07C407/00 , A01N37/16
CPC分类号： C07C409/26 , C07C407/00 , C07C407/003
摘要： The invention relates to a method for producing peracetic acid by reacting hydrogen peroxide and acetic acid in a water-based reaction medium in a reactor and continuously distilling off the produced peracetic acid. Thermal energy in an in an amount exceeding about 0.2 kW/kg reaction medium.
摘要翻译：本发明涉及一种通过在反应器中的水基反应介质中使过氧化氢和乙酸反应生产过乙酸的方法，并连续蒸馏生成的过乙酸。超过约0.2 kW / kg反应介质的热能。

3. 发明授权

US4515903A Cracking catalyst 失效
标题翻译：开裂催化剂
公开(公告)号：US4515903A
公开(公告)日：1985-05-07
申请号：US581272
申请日：1984-02-17
申请人： Jan-Erik A. Otterstedt , Sven G. Jaras , Roland Pudas , Lawrence L. Upson
发明人： Jan-Erik A. Otterstedt , Sven G. Jaras , Roland Pudas , Lawrence L. Upson
IPC分类号： B01J23/02 , B01J29/06 , B01J29/08 , B01J35/00 , B01J37/00 , B01J37/04 , C10G11/05 , C10G11/18 , B01J33/00
CPC分类号： B01J37/04 , B01J23/02 , B01J29/084 , B01J35/0006 , C10G11/05 , C10G11/18 , B01J37/0045 , Y10S502/521
摘要： A cracking catalyst having good resistance to metal poisoning has at least two particle fractions of different particle sizes, the cracking catalyzing zeolite material being concentrated to the coarser particle size fractions, and the finer particle size fractions being formed from material having relatively lower or no or insignificant cracking catalyzing activity. The particles of the finer particle size fractions have a matrix of kaolin and amorphous alumina-silica and may contain for example, an SO.sub.x eliminating additive such as Al.sub.2 O.sub.3, CaO and/or MgO. The coarser particle size fractions having cracking catalyzing effect have a mean particle size of from 80 to 125 .mu.m and the finer particle size fractions a mean particle size of from 30 to 75 .mu.m. The coarser particle size fractions have a zeolite content of at least 20 weight % and may have a zeolite content of up to 100 weight %, the remainder consisting essentially of material which has relatively lower or no or insignificant cracking-catalyzing activity and which consists of kaolin and amorphous alumina-silica. The catalyst mass as a whole may have a zeolite content of up to 50 weight %.
摘要翻译：具有良好的金属中毒性的裂解催化剂具有至少两种不同粒度的颗粒级分，裂化催化沸石材料被浓缩成较粗颗粒级分，并且较细颗粒级分是由具有相对较低或不高的材料形成，不明显的裂解催化活性。较细粒度级分的颗粒具有高岭土和无定形氧化铝 - 二氧化硅的基质，并且可以含有例如除去SO x的添加剂如Al 2 O 3，CaO和/或MgO。具有裂化催化效果的较粗粒径级分的平均粒度为80〜125μm，粒度分数更细，平均粒径为30〜75μm。较粗的颗粒级分的沸石含量为至少20重量％，并且沸石含量可高达100重量％，其余部分基本上由具有相对较低或无明显的裂化催化活性的材料组成，并且由高岭土和无定形氧化铝 - 二氧化硅。催化剂质量整体可以具有高达50重量％的沸石含量。

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