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1. 发明授权

US5108732A Process for the preparation of finely divided ceramic oxide powders from precursor compounds 失效
标题翻译：从前体化合物制备精细分散的氧化铈粉末的方法
公开(公告)号：US5108732A
公开(公告)日：1992-04-28
申请号：US603284
申请日：1990-10-25
申请人： Wolgang Krumbe , Benno Laubach
发明人： Wolgang Krumbe , Benno Laubach
IPC分类号： C01B13/18 , C01B13/32 , C01F7/30 , C01G23/00
CPC分类号： C01B13/322 , C01B13/18 , C01F7/30 , C01G23/003 , C01P2006/10 , C01P2006/12
摘要： A process for preparing finely-divided oxides of metals of metalloids of the elements of main groups III and IV and sub-groups III, IV, V and VI of the Periodic System of Elements, comprising reacting compounds of these elements with a polymerizable hydrocarbon compound or mixture to form a polymer product, which is then thermally treated to yield the oxide product.
摘要翻译：一种制备元素周期表的主要III和IV族元素和III，IV，V和VI族的元素的金属的细金属的微细氧化物的方法，包括使这些元素的化合物与可聚合的烃化合物或混合物以形成聚合物产物，然后将其热处理以产生氧化物产物。

2. 发明授权

US4983371A Silicon nitride powder of low oxygen content 失效
标题翻译：低氧含量的氮化硅粉末
公开(公告)号：US4983371A
公开(公告)日：1991-01-08
申请号：US396328
申请日：1989-08-21
申请人： Ulrike Pitzer , Benno Laubach , Gerhard Franz
发明人： Ulrike Pitzer , Benno Laubach , Gerhard Franz
IPC分类号： C01B21/068
CPC分类号： C01B21/068 , C01P2006/12
摘要： Si.sub.3 N.sub.4 powder wherein the total oxygen content of the powder is 0.4% by weight or less is produced by preparing an amorphous Si.sub.3 N.sub.4 intermediate by reacting a Si-containing compound with an N-containing compound and the intermediate is then crystallized wherein "P", multiplication product of(i) the specific surface of the amorphous intermediate (BET in m.sup.2 /g),(ii) the moisture content C.sub.H.sbsb.2.sub.O (in volume ppm) of the atmosphere during handling and(iii) the time t in hours required for handling the amorphous intermediate,is kept smaller than the limit value product P.sub.G of 1000 in accordance with the following equation:"P"=BET (m.sup.2 /g).times.C.sub.H.sbsb.2.sub.O (vol ppm).times.t(h)
摘要翻译：通过使含Si的化合物与含N的化合物反应制备无定形的Si 3 N 4中间产物，其中粉末的总氧含量为0.4重量％以下的Si 3 N 4粉末，然后使中间体结晶，其中“P” （i）无定形中间体的比表面积（BET / m2 / g），（ii）处理过程中气氛的水分CH 2 O（体积ppm）的产物和（iii）处理所需的时间t 无规中间体根据下式保持小于1000的极限值乘积PG：“P”= BET（m 2 / g）×CH 2 O（体积ppm）×t（h）

3. 发明授权

US08808451B2 Reducing agent for the soluble chromate content of cement and methods for production thereof 有权
标题翻译：水泥可溶性铬酸盐含量的还原剂及其生产方法
公开(公告)号：US08808451B2
公开(公告)日：2014-08-19
申请号：US13371783
申请日：2012-02-13
申请人： Michael Vössing , Auer Gerhard , Benno Laubach , Detlef Klein , Werner Schuy , Klaus Köllisch , Erwin Weiss , Werner Bahl , Philip Reese
发明人： Michael Vössing , Auer Gerhard , Benno Laubach , Detlef Klein , Werner Schuy , Klaus Köllisch , Erwin Weiss , Werner Bahl , Philip Reese
IPC分类号： C04B22/08 , C04B14/00
CPC分类号： C01B17/901 , C01G23/0532 , C01G49/14 , C01P2004/61 , C01P2004/62 , C04B22/149 , C04B28/02 , C04B2111/1081 , C22B7/04 , Y02P10/212 , C04B22/142
摘要： The invention relates to a reducing agent for the soluble chromate content of cement and to methods for the production thereof, which comprise concentrating an used sulfuric acid, containing iron (II) sulfate, and separating the sulfuric acid from the obtained precipitate which contains iron (II) sulfate.
摘要翻译：本发明涉及一种用于水泥的可溶性铬酸盐含量的还原剂及其制备方法，其包括浓缩含硫酸铁（II）的硫酸，并将硫酸与所得到的含铁沉淀物 II）硫酸盐。

4. 发明授权

US07537749B2 Method for processing iron-laden spent sulfuric acid 失效
标题翻译：处理含铁废硫酸的方法
公开(公告)号：US07537749B2
公开(公告)日：2009-05-26
申请号：US10574454
申请日：2004-10-01
申请人： Gerhard Auer , Berndt-Ullrich Köhler , Benno Laubach
发明人： Gerhard Auer , Berndt-Ullrich Köhler , Benno Laubach
IPC分类号： C01B7/01 , C01B17/90
CPC分类号： C01B17/901 , C01G23/0532 , C01G49/14 , Y10S423/01 , Y10S423/02
摘要： The invention concerns a method for processing heavy metal-laden spent sulfuric acid. For this, iron-laden spent sulfuric acid or iron-laden sulfuric materials obtained therefrom are reacted with a material that contains iron chloride and optionally other metal chlorides, producing iron (II) sulfate. The spent sulfuric acid preferably derives from titanium dioxide production.
摘要翻译：本发明涉及一种处理重金属负载硫酸的方法。为此，将由此获得的含铁的废硫酸或含铁的硫酸材料与含有氯化铁和任选的其它金属氯化物的材料反应，生成硫酸铁（II）。废硫酸优选来源于二氧化钛生产。

5. 发明授权

US4980322A Sinterable SI.sub.3 N.sub.4 powders containing sintering additives and a process for their preparation 失效
标题翻译：含烧结添加剂的可烧结SI3N4粉末及其制备方法
公开(公告)号：US4980322A
公开(公告)日：1990-12-25
申请号：US377778
申请日：1989-07-10
申请人： Ulrike Wickel , Gerhard Franz , Benno Laubach
发明人： Ulrike Wickel , Gerhard Franz , Benno Laubach
IPC分类号： C04B35/626 , C04B35/584
CPC分类号： C04B35/584
摘要： Sinterable Si.sub.3 N.sub.4 powder containing Si.sub.3 N.sub.4 particles and sintering additives wherein Si.sub.3 N.sub.4 particles have an average particle size of less than 1 .mu.m, contain no particle having a diameter greater than 100 .mu.m, have a total content of metallic impurities less than 1000 ppm and an iron content of less than 200 ppm, and wherein the sintering additives are uniformly distributed throughout the powder is prepared by co-grinding pulverulent sintering additive and Si.sub.3 N.sub.4 containing less than 1000 ppm metallic impurities in a spiral jet mill.
摘要翻译：含有Si 3 N 4颗粒的可烧结Si 3 N 4粉末和其中Si 3 N 4颗粒的平均粒度小于1μm的烧结助剂，不含直径大于100μm的颗粒，金属杂质的总含量小于1000ppm，铁含量小于200ppm，并且其中烧结添加剂均匀分布在整个粉末中通过在螺旋喷射磨中共磨粉碎烧结添加剂和含有小于1000ppm金属杂质的Si 3 N 4来制备。

6. 发明申请

US20120137934A1 REDUCING AGENT FOR THE SOLUBLE CHROMATE CONTENT OF CEMENT AND METHODS FOR PRODUCTION THEREOF 有权
标题翻译：用于水泥的可溶性铬酸盐含量的还原剂及其生产方法
公开(公告)号：US20120137934A1
公开(公告)日：2012-06-07
申请号：US13371783
申请日：2012-02-13
申请人： Michael VÖSSING , Gerhard AUER , Benno LAUBACH , Detlef KLEIN , Werner SCHUY , Klaus KÖLLISCH , Erwin WEISS , Werner BAHL , Philip REESE
发明人： Michael VÖSSING , Gerhard AUER , Benno LAUBACH , Detlef KLEIN , Werner SCHUY , Klaus KÖLLISCH , Erwin WEISS , Werner BAHL , Philip REESE
IPC分类号： C04B22/08 , C04B14/00
CPC分类号： C01B17/901 , C01G23/0532 , C01G49/14 , C01P2004/61 , C01P2004/62 , C04B22/149 , C04B28/02 , C04B2111/1081 , C22B7/04 , Y02P10/212 , C04B22/142
摘要： The invention relates to a reducing agent for the soluble chromate content of cement and to methods for the production thereof, which comprise concentrating an used sulfuric acid, containing iron (II) sulfate, and separating the sulfuric acid from the obtained precipitate which contains iron (II) sulfate.
摘要翻译：本发明涉及一种用于水泥的可溶性铬酸盐含量的还原剂及其制备方法，其包括浓缩含硫酸铁（II）的硫酸，并将硫酸与所得到的含铁沉淀物 II）硫酸盐。

7. 发明申请

US20070122336A1 Method for processing iron-laden spent sulfuric acid 失效
标题翻译：处理含铁废硫酸的方法
公开(公告)号：US20070122336A1
公开(公告)日：2007-05-31
申请号：US10574454
申请日：2004-10-01
申请人： Gerhard Auer , Berndt-Ullrich Kohler , Benno Laubach
发明人： Gerhard Auer , Berndt-Ullrich Kohler , Benno Laubach
IPC分类号： C01G49/14
CPC分类号： C01B17/901 , C01G23/0532 , C01G49/14 , Y10S423/01 , Y10S423/02
摘要： The invention concerns a method for processing heavy metal-laden spent sulfuric acid. For this, iron-laden spent sulfuric acid or iron-laden sulfuric materials obtained therefrom are reacted with a material that contains iron chloride and optionally other metal chlorides, producing iron (II) sulfate. The spent sulfuric acid preferably derives from titanium dioxide production.
摘要翻译：本发明涉及一种处理重金属负载硫酸的方法。为此，将由此获得的含铁的废硫酸或含铁的硫酸材料与含有氯化铁和任选的其它金属氯化物的材料反应，生成硫酸铁（II）。废硫酸优选来源于二氧化钛生产。

8. 发明授权

US5066473A Silicon nitride powders of low isoelectric point and processes for their production 失效
标题翻译：低电导点的硅氮化物粉末及其生产工艺
公开(公告)号：US5066473A
公开(公告)日：1991-11-19
申请号：US579236
申请日：1990-09-04
申请人： Ulrike Pitzer , Gerhard Franz , Benno Laubach
发明人： Ulrike Pitzer , Gerhard Franz , Benno Laubach
IPC分类号： C01B21/068
CPC分类号： C01B21/0687
摘要： Silicon nitride powder having a total oxygen content of less than 1.8% by weight and an isoelectric point in 0.001M aqueous KNO.sub.3 solution of below pH 4 is prepared by calcining Si.sub.3 N.sub.4 powder having an oxygen content of 0.4% by weight or less in an oxygen containing atmosphere at temperatures between 700.degree. and 1200.degree. C. for 15 to 90 minutes or by grinding such as Si.sub.3 N.sub.4 powder in water, lower alcohol or a water/alcohol mixture for 15 to 120 minutes.
摘要翻译：通过在氧含量为0.4重量％以下氧化氧含量为0.4重量％以下的Si 3 N 4粉末，制备总氧含量小于1.8重量％的含有低于pH 4的0.001M KNO 3水溶液中的等电点的氮化硅粉末气温在700〜1200℃的温度下浸渍15〜90分钟，或者研磨如Si3N4粉末在水，低级醇或水/醇混合物中15〜120分钟。

9. 发明授权

US4948762A Process for the preparation of finely divided carbides and nitrides from ceramic precursor-compounds 失效
标题翻译：从陶瓷前体化合物制备细碎的碳化物和氮化物的方法
公开(公告)号：US4948762A
公开(公告)日：1990-08-14
申请号：US408926
申请日：1989-09-18
申请人： Wolfgang Krumbe , Benno Laubach , Gerhard Franz
发明人： Wolfgang Krumbe , Benno Laubach , Gerhard Franz
IPC分类号： C01B21/06 , C01B21/064 , C01B21/072 , C01B21/076 , C01B21/082 , C01B31/30 , C01B31/34 , C01B31/36 , C08G8/00 , C08G8/08 , C08G65/34 , C08G65/36 , C08G65/38
CPC分类号： C01B31/30 , C01B21/06 , C01B21/0726 , C01B21/0763 , C01B21/0826 , C01B21/064 , C01B21/072 , C01P2002/02 , C01P2004/62 , C01P2006/12 , C01P2006/60 , C01P2006/80
摘要： Carbides, nitrides or carbonitrides of elements from the main groups III and IV and sub-groups III, IV, V and VI of the periodic system of elements are prepared by(i) reacting compounds of the formula MX.sub.m or R.sub.n MX.sub.m-n with a reactive hydrocarbon-containing compound or a mixture of compounds which is polymerizable and which contains a reactive compound with one C--OH-group in whichM is an element of the main group III or IV or sub-group of III, IV, V or VI of the periodic system of elements,X is a halogen,R is hydrogen or alkyl or aryl,m is an integer corresponding to the valency stage of M,n is an integer from 1 to one less than the velency stage of M, and(ii) thermally decomposing the resulting product from (i) to the corresponding carbide or to the corresponding nitrides or carbonitrides with further nitridation.
摘要翻译：通过（i）使式MXm或RnMXm-n的化合物与反应性的化合物反应，制备元素周期系统的主要III和IV族以及III，IV，V和VI族的III，IV，V和VI族元素的碳化物，氮化物或碳氮化物含烃化合物或可聚合并且含有一个C-OH基团的反应性化合物的化合物的混合物，其中M是主要III或IV族元素或III，IV，V或VI族的一个元素的元素周期性系统，X是卤素，R是氢或烷基或芳基，m是对应于M的价态级的整数，n是比M的柔性阶段小1到1的整数，和（ ii）将得到的产物从（i）热分解成相应的碳化物或相应的氮化物或碳氮化物进一步氮化。

10. 发明授权

US4845060A Sinterable Si.sub.3 N.sub.4 powder and a process for its preparation 失效
标题翻译：可烧结Si3N4粉末及其制备方法
公开(公告)号：US4845060A
公开(公告)日：1989-07-04
申请号：US54029
申请日：1987-05-22
申请人： Ulrike Wickel , Gerhard Franz , Benno Laubach
发明人： Ulrike Wickel , Gerhard Franz , Benno Laubach
IPC分类号： C01B21/068 , C04B35/584
CPC分类号： C01B21/0687 , C04B35/584 , C01P2004/50 , C01P2004/62 , C01P2006/12
摘要： Sinterable Si.sub.3 N.sub.4 powder having an average particle size of less than 1 .mu.m, wherein no individual particle has a diameter greater than 100 .mu.m, the total content of metallic impurities of the powder is less than 1000 ppm and the iron content is less than 200 ppm is produced by grinding agglomerated Si.sub.3 N.sub.4 in a spiral jet mill.
摘要翻译：平均粒径小于1μm的可烧结Si 3 N 4粉末，其中没有单个颗粒的直径大于100μm，粉末的金属杂质的总含量小于1000ppm，铁含量小于200 ppm通过在螺旋喷射磨中研磨附聚的Si 3 N 4来生产。

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