公开(公告)号：US5433934A

公开(公告)日：1995-07-18

申请号：US179882

申请日：1994-01-11

Applicant: Dane Chang ,  Stephen A. Bedell ,  Larry H. Kirby

Inventor： Dane Chang ,  Stephen A. Bedell ,  Larry H. Kirby

IPC: B01D53/60 ,  B01D53/74 ,  B01D53/50 ,  B01D53/56

CPC classification number: B01D53/60

Abstract: The simultaneous abatement of NO and SO.sub.2 in flue gas is provided by an absorption process and apparatus utilizing an absorbent composition comprising an aqueous solution of chelates and sulfite salt for NO abatement and amine SO.sub.2 absorbents such as piperazinones, morpholinones, piperidines, piperazines, piperazinediones, hydantoins, triazinones, pyrimidinones, oxazolidones, etc. for SO.sub.2 abatement. SO.sub.2 is thermally stripped from the spent absorbent and recovered. Metal chelates oxidized to an inactive state as a side-reaction are electrochemically reduced. An anionic exchange membrane in the electrochemical cell regenerates heat stable amine salt byproducts to be converted back to useable amine sorbent, and facilitates removal from the absorbent solution of other waste salts.

Abstract translation: 废气中NO和SO2的同时减少是通过吸收方法和装置来提供的，所述吸收方法和装置使用包含螯合物水溶液和亚硫酸盐用于NO消除的吸收剂组合物，以及胺SO 2吸收剂如哌嗪酮，吗啉酮，哌啶，哌嗪，哌嗪类， 乙内酰脲，三嗪酮，嘧啶酮，恶唑烷酮等，用于SO2消除。 SO2从废吸收剂中热剥离并回收。 氧化成非活性状态的金属螯合物作为副反应被电化学还原。 电化学电池中的阴离子交换膜再生热稳定的胺盐副产物以转化回可用的胺吸附剂，并且有助于从其它废盐的吸收剂溶液中除去。

公开(公告)号：US5236678A

公开(公告)日：1993-08-17

申请号：US702795

申请日：1991-05-17

Applicant: Dane Chang ,  Steven H. Christiansen

Inventor： Dane Chang ,  Steven H. Christiansen

IPC: B01D53/14 ,  B01D53/50 ,  C10K1/14

CPC classification number: C10K1/14 ,  B01D53/1493 ,  B01D53/507

Abstract: Sulfur dioxide is removed from a fluid containing SO.sub.2 by employing as an absorbent for the SO.sub.2 an aqueous solution of a compound represented by Formula I: ##STR1## wherein each Y is independently --(CR.sup.2.sub.2)--or--(CR.sup.2).dbd.and each R.sup.1 or R.sup.2 is independently hydrogen, an alkyl group; an hydroxyalkyl group: an aldehyde group: a carboxylic acid group or salt thereof: an alkyl group containing at least one carboxylic ester, a carboxylic acid or salt thereof, ether, aldehyde, ketone, or sulfoxide group: wherein the compound has at least one carbonyl group. The absorbent solution preferably can be thermally regenerated by heating to remove SO.sub.2.

Abstract translation: 通过使用作为SO 2的吸收剂，由式I表示的化合物的水溶液：其中每个Y独立地为 - （CR22） - 或 - （CR2）=和 每个R 1或R 2独立地是氢，烷基; 羟基烷基：醛基：羧酸基或其盐：含有至少一个羧酸酯，羧酸或其盐，醚，醛，酮或亚砜基团的烷基：其中该化合物具有至少一个 羰基。 吸收剂溶液优选通过加热热再生以除去SO 2。

公开(公告)号：US5196146A

公开(公告)日：1993-03-23

申请号：US784203

申请日：1991-10-28

Applicant: Joanna M. Farella ,  Dane Chang ,  Felipe A. Donate ,  Aubrey J. Rhymes, Jr.

Inventor： Joanna M. Farella ,  Dane Chang ,  Felipe A. Donate ,  Aubrey J. Rhymes, Jr.

IPC: C11D1/83 ,  C11D3/00 ,  C11D3/28 ,  C23G1/26

CPC classification number: C23G1/26 ,  C11D1/83 ,  C11D3/0073 ,  C11D3/28

Abstract: An aqueous formulation for cleaning grease and oil from metal, plastic, glass or other surfaces includes water, a surfactant, and a corrosion-inhibiting amount of a 2-piperazinone. The surfactant is chosen from the class of materials possessing at least some ability in aqueous solution to disperse the grease and oil in an aqueous suspension. The formulation preferably includes both an anionic and a nonionic surfactant. The 2-piperazinone inhibits corrosion of the metal or other surface without unduly reducing the dispersive ability of the surfactant(s). The preferred 2-piperazinones for use in the disclosed invention are 4-(2-hydroxyethyl)-2-piperazinone (4-HEP) and N,N-dimethyl-2-piperazinone (NNDP). The formulation is used by agitation in contact with the surface to be cleaned, for example, by mechanical agitation of the surface, by spraying the formulation against the surface, or by the application of ultrasound waves. A concentrate for preparing the formulation contains the surfactant(s) and 2-piperazinone at a concentration 5 to 20 times their concentrations in the formulation; the concentrate is then diluted with 5 to 20 parts of water to yield the formulation.

Abstract translation: 用于从金属，塑料，玻璃或其他表面清洁油脂和油的水性制剂包括水，表面活性剂和防腐蚀量的2-哌嗪酮。 表面活性剂选自在水溶液中具有至少一些能力的材料，以将油脂和油分散在水性悬浮液中。 制剂优选包括阴离子和非离子表面活性剂。 2-哌嗪酮抑制金属或其他表面的腐蚀，而不会过度降低表面活性剂的分散能力。 用于本发明的优选的2-哌嗪酮是4-（2-羟乙基）-2-哌嗪酮（4-HEP）和N，N-二甲基-2-哌嗪酮（NNDP）。 通过与待清洁的表面接触的搅拌使用该制剂，例如通过机械搅动表面，通过将制剂喷雾在表面上，或通过施加超声波来使用。 用于制备制剂的浓缩物含有浓度为制剂浓度5至20倍的表面活性剂和2-哌嗪酮; 然后将浓缩物用5至20份水稀释以得到制剂。

公开(公告)号：US20060063869A1

公开(公告)日：2006-03-23

申请号：US11260642

申请日：2005-10-27

Applicant: Dane Chang ,  Yunwa Cheung ,  Charles Diehl ,  Joseph Vihtelic

Inventor： Dane Chang ,  Yunwa Cheung ,  Charles Diehl ,  Joseph Vihtelic

IPC: C08K5/20

CPC classification number: B22C9/04 ,  B22C7/02 ,  C08K5/0016 ,  C08L23/0838 ,  C08L23/0853 ,  C08L25/02 ,  C08L25/06 ,  C08L91/06 ,  C08L2666/06

Abstract: A fugitive pattern for making a shell mold for investment casting a metal or alloy comprises a substantially random interpolymer and a low molecular weight polymer in proportions to provide a fugitive pattern having a combination of properties suitable for use in making the shell molds.

Abstract translation: 用于制造用于熔模铸造金属或合金的壳模的逃逸模式包括基本上随机的互聚物和低分子量聚合物，以提供具有适合用于制造壳模的性质的组合的逃逸图案。

公开(公告)号：US5789490A

公开(公告)日：1998-08-04

申请号：US720850

申请日：1996-10-03

Applicant: Dane Chang

Inventor： Dane Chang

IPC: B01F17/16 ,  B01D19/04 ,  B01F17/18 ,  C07C213/02 ,  C07C217/50 ,  C08G65/32 ,  C08G65/322 ,  C08G65/325 ,  C08G65/48 ,  C10L1/22 ,  C10L1/222 ,  C10L1/223 ,  C10L1/226 ,  C10L1/232 ,  C10L1/238 ,  C10L1/2387 ,  C10L1/24 ,  C10M149/00 ,  C10M149/12 ,  C10N30/04 ,  C11D1/62 ,  C11D3/30 ,  C11D3/37 ,  C07C213/00

CPC classification number: C10L1/2225 ,  B01D19/0445 ,  B01D19/0477 ,  C07C213/02 ,  C08G65/322 ,  C08G65/3255 ,  C10L1/2235 ,  C10L1/226 ,  C10L1/232 ,  C10L1/238 ,  C10L1/2387 ,  C10L1/2443 ,  C10M149/12

Abstract: This invention includes catalysts comprising rhenium (atomic number 75), nickel, cobalt, boron and copper and/or ruthenium impregnated on a support material and a process for preparing said catalyst, said process comprising (i) impregnating a mixture of metals comprising rhenium, cobalt, copper and/or ruthenium, boron and nickel on a support material selected from the group consisting of alpha-alumina, silica, silica-alumina, kieselguhrs or diatomaceous earths, and silica-titanias; and (ii) activating said catalyst by heating the catalyst in the presence of hydrogen at an effective temperature preferably in the range of about 150.degree. C. to about 500.degree. C. for a sufficient period preferably of from about 30 minutes to about 6 hours. A further feature of the present invention is a method for producing amine products by the catalytic amination of polyether derivatives including epoxides, monols, diols, polyethers, polyols, alcoholamines, ketones, imino compounds iminoalcohols, ether alcohols, and mixtures thereof, said process comprising contacting said lower polyether derivatives with ammonia and/or reactant amine at an effective temperature preferably from 150.degree. C. to about 500.degree. C. and at an effective pressure preferably from 1000-5000 psig (6895-34,474 kpag)and in the presence of hydrogen and the nickel-rhenium-cobalt-boron-copper and/or ruthenium catalyst as described hereinabove.

Abstract translation: 本发明包括包含浸渍在载体材料上的铼（原子序号75），镍，钴，硼和铜和/或钌的催化剂和所述催化剂的制备方法，所述方法包括（i）浸渍包含铼， 钴，铜和/或钌，硼和镍在选自α-氧化铝，二氧化硅，二氧化硅 - 氧化铝，硅藻土或硅藻土的支撑材料上，以及二氧化硅 - 钛合金; 和（ii）通过在优选约150℃至约500℃的有效温度下在氢气存在下加热催化剂来活化所述催化剂足够的时间，优选约30分钟至约6小时 。 本发明的另一个特征是通过包括环氧化物，单醇，二醇，聚醚，多元醇，醇胺，酮，亚氨基化合物亚氨基醇，醚醇及其混合物的聚醚衍生物的催化胺化制备胺产物的方法，所述方法包括 在优选150℃至约500℃的有效温度和优选1000-5000磅/平方英寸（6895-34,474千帕）的有效压力下，并且在存在下，将所述下聚醚衍生物与氨和/或反应物胺接触 氢和镍 - 铼 - 钴 - 硼 - 铜和/或钌催化剂。

公开(公告)号：US5108723A

公开(公告)日：1992-04-28

申请号：US569118

申请日：1990-08-16

Applicant: Dane Chang ,  Steven H. Christiansen ,  David A. Wilson

Inventor： Dane Chang ,  Steven H. Christiansen ,  David A. Wilson

IPC: B01D53/14 ,  B01D53/50 ,  B01D53/77 ,  C10K1/14

CPC classification number: B01D53/1493 ,  B01D53/507 ,  C10K1/14

Abstract: A process for removing SO.sub.2 from a fluid containing SO.sub.2 by employing as an absorbent for the SO.sub.2 an admixture of water and a compound represented by Formula I: ##STR1## wherein each R.sup.1, R.sup.2 or R.sup.3 is independently hydrogen; an alkyl group; a carboxylic acid group; a hydroxyalkyl group; an aldehyde group; and alkyl group containing a carboxylic ester, a carboxylic acid or salt, ether, aldehyde, ketone or sulfoxide group; wherein at least one R.sup.1 or R.sup.3 is carboxy methyl group and at least one R.sup.1 or R.sup.3 is hydrogen, preferably at least one R.sup.1 is carboxy methyl and at least one R.sup.3 is hydrogen. The absorbent solution preferably can be thermally regenerated by heating to remove SO.sub.2.

公开(公告)号：US4980471A

公开(公告)日：1990-12-25

申请号：US418292

申请日：1989-10-06

Applicant: Steven H. Christiansen ,  David A. Wilson ,  Dane Chang

Inventor： Steven H. Christiansen ,  David A. Wilson ,  Dane Chang

IPC: B01D53/14 ,  C07D241/08

CPC classification number: C07D241/08

Abstract: The 2-piperazinones are made by reacting a 1-cyano-1-hydroxyalkane with ethylenediamine or a substituted ethylenediamine in aqueous solution. The process to make the 2-piperazinones suitable as a regenerable sulfur dioxide absorbing medium requires that the cyano compound be present in at least a molar equivalent amount to the diamine and that the resulting 2-piperazinone product be sparged with an inert gas.

公开(公告)号：US4895600A

公开(公告)日：1990-01-23

申请号：US225322

申请日：1988-07-28

Applicant: Dane Chang ,  Druce K. Crump

Inventor： Dane Chang ,  Druce K. Crump

IPC: C08K5/5353

CPC classification number: C08K5/5353

Abstract: Asphalt compositions are improved by incorporating therein the reaction produce of (a) a phosphorus-containing compound, (b) an amine or polyamine and (c) a carbonyl-containing compound as an anti-stripping agent. These asphalt compositions are useful as a pavement material by blending with an aggregate.

Abstract translation: 通过在其中引入（a）含磷化合物，（b）胺或多胺和（c）含羰基化合物作为抗剥离剂的反应产物来改善沥青组合物。 这些沥青组合物通过与骨料混合而用作路面材料。

公开(公告)号：US4839404A

公开(公告)日：1989-06-13

申请号：US889664

申请日：1986-07-28

Applicant: Dane Chang ,  David L. Wolfe

Inventor： Dane Chang ,  David L. Wolfe

IPC: C08L95/00

CPC classification number: C08L95/00

Abstract: A composition useful as a pavement material comprising a mixture of asphalt, aggregate and an interpolymer of an .alpha.-olefin monomer selected from the group consisting of an .alpha.,.beta.-ethylenically unsaturated carboxylic acid or an ionomer of an .alpha.,.beta.-ethylenically unsaturated carboxylic acid.

Abstract translation: 一种可用作路面材料的组合物，其包含沥青，聚集体和α-烯烃单体的互聚物的混合物，所述α-烯烃单体选自α，β-烯属不饱和羧酸或α，β-烯属不饱和羧酸的离聚物 酸。

公开(公告)号：US4786329A

公开(公告)日：1988-11-22

申请号：US94982

申请日：1987-09-09

Applicant: Dane Chang ,  Druce K. Crump

Inventor： Dane Chang ,  Druce K. Crump

IPC: C08K5/5353 ,  C08L95/00

CPC classification number: C08K5/5353

Abstract: Asphalt compositions are improved by incorporating therein the reaction product of (a) a phosphorus-containing compound, (b) an amine or polyamine and (c) a carbonyl-containing compound as an anti-stripping agent. These asphalt compositions are useful as a pavement material by blending with an aggregate.

Abstract translation: 通过在其中加入（a）含磷化合物，（b）胺或多胺和（c）含有羰基化合物作为抗剥离剂的反应产物来改善沥青组合物。 这些沥青组合物通过与骨料混合而用作路面材料。