公开(公告)号：US06342647B1

公开(公告)日：2002-01-29

申请号：US09391970

申请日：1999-09-08

Applicant: Glenn L. Roof ,  Muslim D. Shahid

Inventor： Glenn L. Roof ,  Muslim D. Shahid

IPC: C07C720

CPC classification number: C09K15/30 ,  C07B63/04 ,  C07C7/20 ,  C07C51/50 ,  C07C253/32 ,  C07C15/46 ,  C07C11/167 ,  C07C57/04 ,  C07C11/18 ,  C07C255/08

Abstract: It has been discovered that the polymerization of vinyl aromatic compounds, such as styrene, may be inhibited by the addition of a composition that contains a hindered hydroxylamine, and, optionally, a synergist together with the hindered hydroxylamine. In one embodiment of the invention, the hindered N,N-disubstituted hydroxylamine has the formula: [(R1R2R3)C]2N—OH where R1, R2, and R3 are independently selected from the group consisting of hydrogen, straight, branched or cyclic alkyl, aryl, aralkyl, and alkaryl moieties; where no more than two of R1, R2, and R3 on each C can be hydrogen at a time; where one or more of R1, R2, and R3 on one C may be joined to a R1, R2, and R3 on the other C to form a cyclic moiety selected from the group consisting of alkylene, and aralkylene moieties; where any two of the R1, R2, and R3 on any one C may be joined together to form a cycloalkyl; where any of the above definitions of R1, R2, and R3 may contain one or more heteroatoms selected from the group consisting of N, O and S; and where the total number of carbon atoms in the hindered N,N-disubstituted hydroxylamine ranges from 6 to 70. Optional synergists may include alkyl-substituted hydroxyarenes such as 2,5-di-tert-butylhydroquinone, and hydrogen transfer agents such as 1,2,3,4-tetrahydronaphthalene; and the like, and mixtures thereof.

Abstract translation: 已经发现，乙烯基芳族化合物如苯乙烯的聚合可以通过加入含有受阻羟胺的组合物和任选的增效剂与受阻羟胺一起被抑制。 在本发明的一个实施方案中，受阻的N，N-二取代的羟胺具有下式：其中R 1，R 2和R 3独立地选自氢，直链，支链或环烷基，芳基，芳烷基和烷芳基部分 ; 其中每个C上不超过两个R 1，R 2和R 3可以一次为氢; 其中一个C上的R 1，R 2和R 3中的一个或多个可以在另一个C上连接到R 1，R 2和R 3，以形成选自亚烷基和亚芳基部分的环状部分; 其中任何一个C上的R 1，R 2和R 3中的任何两个可以连接在一起以形成环烷基; 其中R1，R2和R3的上述定义中的任何一个可以含有一个或多个选自N，O和S的杂原子; 并且其中受阻N，N-二取代羟胺中的总碳原子数范围为6至70.任选的增效剂可包括烷基取代的羟基芳烃如2,5-二叔丁基氢醌和氢转移剂如1 ，2,3,4-四氢化萘; 等，及其混合物。

公开(公告)号：US06656445B2

公开(公告)日：2003-12-02

申请号：US09975438

申请日：2001-10-09

Applicant: John A. Schield ,  Weldon J. Cappel ,  Jerry J. Weers ,  Glenn L. Roof

Inventor： John A. Schield ,  Weldon J. Cappel ,  Jerry J. Weers ,  Glenn L. Roof

IPC: C01B1700

CPC classification number: C01B17/0232 ,  C01B17/0243

Abstract: The present invention provides a method for inhibiting the evolution of H2S from sulfhydryl compounds in molten sulfur by using scavenging agents such as anhydrides and polymers thereof, conjugated ketones, carbonates, epoxides, monoesters and diesters of unsaturated dicarboxylic acids and polymers of these esters, and the like and mixtures thereof. In one embodiment, it is preferred that the scavenging agent is in liquid form at contact temperature with the molten sulfur. In another embodiment, the scavenging agent may be atomized into the vapor space over the molten sulfur to contact the sulfur with the agent.

公开(公告)号：US5527447A

公开(公告)日：1996-06-18

申请号：US438710

申请日：1995-05-11

Applicant: Glenn L. Roof

Inventor： Glenn L. Roof

IPC: C10G19/00 ,  C10G9/16

CPC classification number: C10G19/00

Abstract: The present invention provides a number of inhibiting agents that are useful to reduce aldol condensation in diethanolamine scrubbers. Suitable inhibiting agents include: hydrogen peroxide; hydroperoxides; nitroalkanes; salts of hypochlorous acid; alkyl substituted aldehyde oximes; trialkyl phosphites; isothiuronium salts; 2-mercaptoethanol (C.sub.2 H.sub.6 OS); and, benzoic hydrazide. A preferred inhibiting agent for diethanolamine scrubbers is an excess of hydrogen peroxide.

Abstract translation: 本发明提供了许多可用于减少二乙醇胺洗涤器中醛醇缩合的抑制剂。 合适的抑制剂包括：过氧化氢; 氢过氧化物; 硝基烷烃; 次氯酸盐; 烷基取代的醛肟; 亚磷酸三烷基酯; 异硫脲盐 2-巯基乙醇（C2H6OS）; 和苯甲酰肼。 二乙醇胺洗涤器的优选抑制剂是过量的过氧化氢。

公开(公告)号：US5614080A

公开(公告)日：1997-03-25

申请号：US439429

申请日：1995-05-11

Applicant: Glenn L. Roof

Inventor： Glenn L. Roof

IPC: B01D53/14 ,  C10G70/06 ,  C10G9/16

CPC classification number: B01D53/1493 ,  C10G70/06

Abstract: The present invention provides a large number of inhibiting agents that are useful to reduce aldol condensation in monoethanolamine scrubbers. Such agents include hydrazine, hydroperoxides, hydrogen peroxide, and dialkylketone oximes. Preferred inhibiting agents are hydrazines.

Abstract translation: 本发明提供了大量用于减少单乙醇胺洗涤器中醛醇缩合的抑制剂。 这些试剂包括肼，氢过氧化物，过氧化氢和二烷基酮肟。 优选的抑制剂是肼。

公开(公告)号：US5190640A

公开(公告)日：1993-03-02

申请号：US761467

申请日：1991-09-18

Applicant: Glenn L. Roof ,  Lawrence N. Kremer ,  Robert V. Market

Inventor： Glenn L. Roof ,  Lawrence N. Kremer ,  Robert V. Market

IPC: C10G29/20

CPC classification number: C10G29/20

Abstract: Sour sulfhydryl group containing oils and gases are treated with an effective amount of a sweetening, hydrogen sulfide quantity reducing aminocarbinol of the formulaR.sub.2 N--CH(--R.sup.1)OHwherein R.sup.1 is hydrogen or a hydrocarbyl or inertly substituted hydrocarbyl and each R is independently hydrocarbyl or inertly substituted hydrocarbyl or both R groups are collectively a divalent hydrocarbon or ether radical combined with the nitrogen of the aminocarbinol to form a heterocyclic ring represented by the formula(--R--R--)>N--CH(--R.sup.1)OH.The aminocarbinols used in this treatment are especially suitable for sour gases and high boiling, heavy residual fuels under low mix conditions.

Abstract translation: 含有巯基的油和气体用有效量的减硫硫化氢减少式R 2 N-CH（-R 1）OH的氨基甲醇进行处理，其中R1是氢或烃基或惰性取代的烃基，每个R独立地是烃基 或惰性取代的烃基或两个R基团一起是与氨基甲醇的氮组合的二价烃或醚基，形成由式（-RR - ）> N-CH（-R1）OH表示的杂环。 该处理中使用的氨基甲醇在低混合条件下特别适用于酸性气体和高沸点重残留燃料。

公开(公告)号：US5552060A

公开(公告)日：1996-09-03

申请号：US435624

申请日：1995-05-05

Applicant: Glenn L. Roof

Inventor： Glenn L. Roof

IPC: C02F1/54 ,  C02F1/58

CPC classification number: C02F1/54

Abstract: The present invention provides a method for scavenging H.sub.2 S from aqueous and hydrocarbon substrates using an epoxide. Preferred epoxides are styrene oxide, 1,3-butadiene diepoxide, and cyclohexene oxide.

Abstract translation: 本发明提供一种使用环氧化物从含水和烃底物中清除H 2 S的方法。 优选的环氧化物是氧化苯乙烯，1,3-丁二烯二环氧化物和氧化环己烯。

公开(公告)号：US06605234B1

公开(公告)日：2003-08-12

申请号：US09448007

申请日：1999-11-23

Applicant: Glenn L. Roof ,  Ting S. Go

Inventor： Glenn L. Roof ,  Ting S. Go

IPC: B01D1900

CPC classification number: C01C1/20 ,  C23F11/08 ,  Y10S210/904

Abstract: Hydroxalkylaminium polysulfides are used to provide cold stability to ammonium polysulfide solutions. Hydroxyalkylaminium sulfides or polysulfides also are used to solubilize unwanted sulfur. Preferred aminium ions are monohydroxyalkylaminium ions, preferably monoethanolaminium ions. When added to an aqueous stream comprising free cyanide ions (including HCN), the polysulfide solution reduces corrosion of metal equipment contacted by the stream by converting the free cyanide ions into thiocyanate ions.

Abstract translation: 氢氧烷基铵多硫化物用于为多硫化铵溶液提供冷稳定性。 羟烷基铵硫化物或多硫化物也用于溶解不需要的硫。 优选的铵离子是单羟基烷基铵离子，优选单乙醇胺离子。 当添加到含有游离氰离子（包括HCN）的含水流中时，多硫化物溶液通过将游离氰离子转化成硫氰酸根离子来减少与流接触的金属设备的腐蚀。

公开(公告)号：US5700368A

公开(公告)日：1997-12-23

申请号：US450366

申请日：1995-05-25

Applicant: Glenn L. Roof

Inventor： Glenn L. Roof

IPC: B01D53/14 ,  C10G19/02 ,  C10G9/16

CPC classification number: C10G19/02 ,  B01D53/1493

Abstract: The present invention provides a number of agents that are useful to inhibit aldol condensation in caustic scrubbers. Preferred agents include, but are not necessarily limited to benzoic hydrazide, hydroperoxides, hydrogen peroxide, salts of hypochlorous acid, nitroalkanes, monoethanolamine, peroxyesters, and N,N-dialkylhydroxylamines.

Abstract translation: 本发明提供了许多用于抑制苛性碱洗涤器中醛醇缩合的试剂。 优选的试剂包括但不限于苯甲酰肼，氢过氧化物，过氧化氢，次氯酸盐，硝基烷烃，单乙醇胺，过氧酯和N，N-二烷基羟胺。

公开(公告)号：US4600518A

公开(公告)日：1986-07-15

申请号：US754720

申请日：1985-07-15

Applicant: Donald G. Ries ,  Glenn L. Roof

Inventor： Donald G. Ries ,  Glenn L. Roof

IPC: C10G29/20 ,  C10L1/222 ,  C10M133/08 ,  C10M105/08

CPC classification number: C10L1/2225 ,  C10G29/20 ,  C10M133/08 ,  C10M2215/042 ,  C10N2240/00 ,  C10N2240/22 ,  C10N2240/30 ,  C10N2240/50 ,  C10N2240/52 ,  C10N2240/54 ,  C10N2240/56 ,  C10N2240/58 ,  C10N2240/60 ,  C10N2240/66

Abstract: Choline is an effective agent for neutralizing naphthenic acids found in certain fuel and lubricating oils.

Abstract translation: 胆碱是中和某些燃料和润滑油中发现的环烷酸的有效试剂。

公开(公告)号：US06887447B2

公开(公告)日：2005-05-03

申请号：US10688243

申请日：2003-10-17

Applicant: John A. Schield ,  Weldon J. Cappel ,  Jerry J. Weers ,  Glenn L. Roof

Inventor： John A. Schield ,  Weldon J. Cappel ,  Jerry J. Weers ,  Glenn L. Roof

IPC: C01B17/02

CPC classification number: C01B17/0232 ,  C01B17/0243

Abstract: The present invention provides a method for inhibiting the evolution of H2S from sulfhydryl compounds in molten sulfur by using scavenging agents such as anhydrides and polymers thereof, conjugated ketones, carbonates, epoxides, monoesters and diesters of unsaturated dicarboxylic acids and polymers of these esters, and the like and mixtures thereof. In one embodiment, it is preferred that the scavenging agent is in liquid form at contact temperature with the molten sulfur. In another embodiment, the scavenging agent may be atomized into the vapor space over the molten sulfur to contact the sulfur with the agent.

Abstract translation: 本发明提供了一种通过使用清除剂如酸酐及其聚合物，共轭酮，碳酸酯，环氧化物，不饱和的碳酸酯和二酯来抑制硫醇化合物在熔融硫中释放H 2 S的方法 二羧酸和这些酯的聚合物等，以及它们的混合物。 在一个实施方案中，优选的是，清除剂在与熔融硫的接触温度下为液体形式。 在另一个实施方案中，清除剂可以被雾化到熔融硫上的蒸气空间中以使硫与试剂接触。