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1. 发明授权

US10450246B2 Compositions for control and inhibition of polymerization of vinyl aromatic monomers, and methods of use thereof 有权
公开(公告)号：US10450246B2
公开(公告)日：2019-10-22
申请号：US15774466
申请日：2017-02-09
申请人： Dorf Ketal Chemicals (India) Private Limited
发明人： Mahesh Subramaniyam
IPC分类号： C09K3/00 , C07C7/20
摘要： The present invention relates to an improved amine based additive composition for control and inhibition of polymerization of aromatic vinyl monomers, particularly of styrene comprising one or more quinone methide compounds, one or more phenolic compounds and further comprising at least one aliphatic tertiary amine containing —OH group in the alkyl chain. In one embodiment, the present invention also relates to method of use of presently provided composition. In another embodiment, the present invention also relates to method of controlling and inhibiting polymerization of aromatic vinyl monomers, particularly of styrene by employing presently provided composition. In still another embodiment, the present invention also relates to method of preparation of presently provided composition.

2. 发明授权

US09777230B2 Effective novel non-polymeric and non-fouling additive for inhibiting high-temperature naphthenic acid corrosion and method of using the same 有权
公开(公告)号：US09777230B2
公开(公告)日：2017-10-03
申请号：US15244688
申请日：2016-08-23
申请人： Dorf Ketal Chemicals (India) Private Limited
发明人： Mahesh Subramaniyam
IPC分类号： C09K8/524 , C09K8/54 , C10G7/10 , C10G7/04 , C10G75/02 , B01D3/34 , C10G7/00 , C23F11/04
CPC分类号： C10G75/02 , B01D3/34 , C02F2303/08 , C09K8/524 , C09K8/54 , C10G7/00 , C10G7/10 , C10G2300/1033 , C10G2300/203 , C10G2300/4075 , C10G2300/80 , C23F11/04
摘要： The present invention relates to inhibition of high temperature naphthenic acid corrosion occurring in hydrocarbon processing units. The invention provides an effective novel non-polymeric and non-fouling additive for inhibiting high-temperature naphthenic acid corrosion, comprising an effective corrosion-inhibiting amount of a second phosphate ester wherein said second phosphate ester is obtained by reacting a first phosphate ester with an oxirane compound selected from the group consisting of butylene oxide, ethylene oxide, propylene oxide or any other oxirane compound or a combination thereof, preferably with butylene oxide, capably yielding said second phosphate ester, having a structure A or B, wherein R1 and R2 are each independently selected from the group consisting of moieties having 1 to 20 carbon atoms and R1 and R2 may be identical or different, X is H, CH3 or C2H5; and n may vary from 1 to 20, wherein said first phosphate ester is having a structure I or II, wherein R1 and R2 are each independently selected from the group consisting of moieties having 1 to 20 carbon atoms and R1 and R2 may be identical or different, said first phosphate ester being obtained as a reaction product of reaction of an alcohol with a phosphorous pentaoxide.

3. 发明授权

US09334445B2 Amine based additive composition for control and inhibition of polymerization of styrene, and method of use thereof 有权
标题翻译：用于控制和抑制苯乙烯聚合的胺基添加剂组合物及其使用方法
公开(公告)号：US09334445B2
公开(公告)日：2016-05-10
申请号：US14361220
申请日：2012-11-16
申请人： Dorf Ketal Chemicals (India) Private Limited
发明人： Mahesh Subramaniyam
IPC分类号： C07C7/20 , C09K15/20 , C07B63/04
CPC分类号： C09K15/20 , C07B63/04 , C07C7/20 , C07C15/46
摘要： The present invention relates to amine based additive composition for controlling and inhibition of polymerization of aromatic vinyl monomers including styrene comprising (a) one or more of nitroxide (i.e. nitroxyl) compounds; and (b) one or more of aromatic nitro compounds, characterized in that the said composition further comprises one or more of (c) amines, wherein said amine is selected from a group comprising (i) hydroxyl alkyl tertiary amines, (ii) tertiary alkyl amines, (iii) hydroxyl alkyl primary amine; and (iv) mixture thereof. In one embodiment, the present invention also relates to method of using presently provided composition. In another embodiment, the present invention also relates to method of controlling and inhibiting polymerization of aromatic vinyl monomers including styrene by employing presently provided composition. In still another embodiment, the present invention also relates to method of preparation of presently provided composition.
摘要翻译：本发明涉及用于控制和抑制包括苯乙烯在内的芳族乙烯基单体的聚合的胺基添加剂组合物，其包含（a）一种或多种氮氧化物（即硝酰基）化合物; 和（b）一种或多种芳族硝基化合物，其特征在于所述组合物还包含一种或多种（c）胺，其中所述胺选自（i）羟基烷基叔胺，（ii）叔胺烷基胺，（iii）羟基烷基伯胺; 和（iv）其混合物。在一个实施方案中，本发明还涉及使用目前提供的组合物的方法。在另一个实施方案中，本发明还涉及通过使用目前提供的组合物来控制和抑制包括苯乙烯的芳族乙烯基单体聚合的方法。在另一个实施方案中，本发明还涉及制备目前提供的组合物的方法。

4. 发明授权

US08679324B2 Additive and method for removal of impurities formed due to sulfur compounds in crude oils containing calcium naphthenate 有权
标题翻译：用于除去含有环烷酸钙的原油中由于硫化合物形成的杂质的添加剂和方法
公开(公告)号：US08679324B2
公开(公告)日：2014-03-25
申请号：US13519831
申请日：2010-12-28
申请人： Mahesh Subramaniyam
发明人： Mahesh Subramaniyam
IPC分类号： C10G17/00
CPC分类号： C10G17/02 , B01D43/00 , C10G2300/205 , C10G2300/207 , C10G2300/80 , C10G2300/805 , E21B37/00 , E21B43/00
摘要： An additive capable of avoiding formation of impurities and capable of removing or dissolving impurities formed and accumulated at the interphase of organic and aqueous layers on reaction between calcium naphthenate and sulfur compound including H2S in presence of water in mixture of crude oils containing calcium naphthenate and sulfur compound or H2S, wherein the additive is glyoxylic acid is provided. A method for avoiding formation of impurities and for removing or dissolving impurities formed and accumulated at the interphase of organic and aqueous layers on reaction between calcium naphthenate and sulfur compound including H2S in presence of water in mixture of crude oils containing calcium naphthenate and sulfur compound including H2S, comprising treating mixture of crude oils containing calcium naphthenate and sulfur compound or H2S with glyoxylic acid is also provided.
摘要翻译：一种添加剂，其能够避免形成杂质，并且能够除去或溶解在含有环烷酸钙和硫的原油的混合物存在下，在环烷酸钙和包括H 2 S的硫化合物之间的反应中在有机层和水层的相间形成和积累的杂质化合物或H2S，其中添加剂是乙醛酸。一种用于在含有环烷酸钙和硫化合物的原油混合物中存在水的情况下，避免形成杂质并除去或溶解形成和积累在有机层和水层间的杂质的方法，所述杂质包括环烷酸钙和包括H 2 S在内的硫化合物之间的反应，所述原油包含 H2S还包括用乙醛酸处理含有环烷酸钙和硫化合物或H 2 S的原油的混合物。

5. 发明授权

US11377600B2 Hydrogen sulfide scavenging additive composition and method of use thereof 有权
公开(公告)号：US11377600B2
公开(公告)日：2022-07-05
申请号：US16067013
申请日：2016-12-26
申请人： Dorf Ketal Chemicals (India) Private Limited
发明人： Mahesh Subramaniyam
IPC分类号： C10G29/20 , C10G29/24 , B01D53/14 , B01D53/78 , B01D53/52 , C10L1/222 , C10L1/185 , C10L1/238 , C10L1/14 , C10L3/10
摘要： The present invention relates to an additive composition for scavenging hydrogen sulfide in hydrocarbons, wherein said additive composition comprises a combination of (a) glyoxal and (b) at least one aliphatic tertiary amine or oxide treated derivative thereof, or a mixture of the aliphatic tertiary amine and the oxide treated derivative thereof. In one embodiment it also relates to a method for scavenging hydrogen sulfide in hydrocarbons, and in another embodiment it relates to a method of using an additive composition of the present invention for scavenging hydrogen sulfide in hydrocarbons. In yet another embodiment it relates to a composition for scavenging hydrogen sulfide in hydrocarbons comprising (A) a hydrocarbon and (B) a hydrogen sulfide scavenging additive composition of the present invention.

6. 发明授权

US11242303B2 Composition for control and inhibition of polymerization of monomers, and method of use and preparation thereof 有权
公开(公告)号：US11242303B2
公开(公告)日：2022-02-08
申请号：US16491107
申请日：2018-03-28
申请人： Dorf Ketal Chemicals (India) Private Limited
发明人： Mahesh Subramaniyam
IPC分类号： C07C7/20 , C07C11/04 , C07C15/46 , C07C37/01 , C10G75/04 , C09K15/26 , C09K15/28 , C09K15/04 , C09K15/24 , C10G7/10 , C08F2/00
摘要： The present invention relates to an additive composition for controlling and inhibiting polymerization of monomers, wherein the composition comprises a combination of (a) a phenol compound comprising catechol compound with (b1) an aliphatic tertiary amine, (b2) oxide treated derivative of the aliphatic tertiary amine, or (b2) a mixture thereof, wherein the aliphatic tertiary amine contains one or more hydroxyl groups in the alkyl chain of the aliphatic tertiary amine. In one embodiment, the present invention also relates to a method for controlling and inhibiting polymerization of monomers by employing the additive composition of the present invention. In another embodiment, the present invention also relates to a method of using the additive composition of the present invention for controlling and inhibiting polymerization of monomers. In another embodiment, the present invention also relates to methods for controlling and inhibiting polymerization of monomers in a primary fractionator (or an ethylene plant), and for operating a primary fractionator, and for reducing fouling and polymer deposits in a primary fractionator, and to extend a run-length of a primary fractionator or of an ethylene plant.

7. 发明申请

US20160083315A1 Additive Composition for Control and Inhibition of Polymerization of Aliphatic Monomers, and Methods of Preparation and Use Thereof 有权
标题翻译：用于控制和抑制脂肪族单体聚合的添加剂组合物及其制备和使用方法
公开(公告)号：US20160083315A1
公开(公告)日：2016-03-24
申请号：US14779843
申请日：2014-03-20
申请人： DORF KETAL CHEMICALS (INDIA) PRIVATE LIMITED
发明人： Mahesh Subramaniyam
IPC分类号： C07C7/20 , C09K15/30 , C09K15/22
CPC分类号： C07C7/20 , C07B63/04 , C09K15/22 , C09K15/30 , C07C11/167
摘要： The present invention relates to additive composition and method of use thereof for controlling and inhibition of polymerization and dimerization of aliphatic monomers including butadiene comprising A) one or more of first component selected from a group comprising a) quinone methide (QM), b) quinone methide (QM) derivative including ester derivative of quinone methide, c) nitroxide (i.e. nitroxyl) compounds, and d) mixture thereof; characterized in that the composition further comprises B) one or more of second component selected from amines or polyamines, wherein the amine and polyamine is selected from a group comprising i) oxide treated tertiary amines, ii) hydroxyl alkyl tertiary amines, iii) polyether amines, and iv) mixture thereof. In one embodiment, the present invention also relates to a method for controlling and inhibiting polymerization and dimerization of aliphatic monomers including butadiene by employing the presently provided compositions, and in another embodiment, the present invention relates to a method of preparation of the presently provided compositions.
摘要翻译：本发明涉及添加剂组合物及其用于控制和抑制包括丁二烯的脂肪族单体的聚合和二聚的应用的方法，包括A）一种或多种选自以下的第一组分：a）醌甲基化物（QM），b）醌甲基化（QM）衍生物，包括醌甲基酯的酯衍生物，c）硝基氧（即硝酰基）化合物，和d）其混合物; 其特征在于组合物还包含B）选自胺或多胺的一种或多种第二组分，其中胺和多胺选自i）氧化物处理的叔胺，ii）羟基烷基叔胺，iii）聚醚胺，和iv）其混合物。在一个实施方案中，本发明还涉及通过使用目前提供的组合物来控制和抑制包括丁二烯的脂族单体的聚合和二聚的方法，并且在另一个实施方案中，本发明涉及制备目前提供的组合物的方法。

8. 发明申请

US20140364662A1 Amine Based Additive Composition for Control and Inhibition of Polymerization of Aromatic Vinyl Monomers, and Method of Use thereof 有权
标题翻译：用于控制和抑制芳族乙烯基单体聚合的胺基添加剂组合物及其使用方法
公开(公告)号：US20140364662A1
公开(公告)日：2014-12-11
申请号：US14366223
申请日：2012-12-21
申请人： Dorf Ketal Chemicals (India) Private Limited
发明人： Mahesh Subramaniyam
IPC分类号： C09K15/30 , C07C7/20
CPC分类号： C09K15/30 , C07B63/04 , C07C7/20 , C07C15/46
摘要： The present invention relates to an improved amine based additive composition for control and inhibition of polymerization of aromatic vinyl monomers including styrene comprising one or more of the quinone methide or derivatives thereof, one or more of nitroxide compounds and further comprising one or more of aliphatic tertiary amines. In one embodiment, the present invention also relates to method of use of presently provided composition. In another embodiment, the present invention also relates to method of controlling and inhibiting polymerization of aromatic vinyl monomers, particularly of styrene by employing presently provided composition. In still another embodiment, the present invention also relates to method of preparation of presently provided composition.
摘要翻译：本发明涉及一种用于控制和抑制包含一种或多种醌甲基化物或其衍生物的苯乙烯的芳族乙烯基单体的聚合的改进的胺基添加剂组合物，一种或多种氮氧化合物，并且还包含一种或多种脂族叔碳酸酯胺类在一个实施方案中，本发明还涉及使用目前提供的组合物的方法。在另一个实施方案中，本发明还涉及通过使用目前提供的组合物来控制和抑制芳族乙烯基单体，特别是苯乙烯聚合的方法。在另一个实施方案中，本发明还涉及制备目前提供的组合物的方法。

9. 发明申请

US20140316172A1 Amine Based Additive Composition for Control and Inhibition of Polymerization of Styrene, and Method of Use Thereof 有权
标题翻译：用于控制和抑制苯乙烯聚合的胺基添加剂组合物及其使用方法
公开(公告)号：US20140316172A1
公开(公告)日：2014-10-23
申请号：US14361220
申请日：2012-11-16
申请人： Dorf Ketal Chemicals (india) Private Limited
发明人： Mahesh Subramaniyam
IPC分类号： C09K15/20 , C07C7/20
CPC分类号： C09K15/20 , C07B63/04 , C07C7/20 , C07C15/46
摘要： The present invention relates to amine based additive composition for controlling and inhibition of polymerization of aromatic vinyl monomers including styrene comprising (a) one or more of nitroxide (i.e. nitroxyl) compounds; and (b) one or more of aromatic nitro compounds, characterized in that the said composition further comprises one or more of (c) amines, wherein said amine is selected from a group comprising (i) hydroxyl alkyl tertiary amines, (ii) tertiary alkyl amines, (iii) hydroxyl alkyl primary amine; and (iv) mixture thereof. In one embodiment, the present invention also relates to method of using presently provided composition. In another embodiment, the present invention also relates to method of controlling and inhibiting polymerization of aromatic vinyl monomers including styrene by employing presently provided composition. In still another embodiment, the present invention also relates to method of preparation of presently provided composition.
摘要翻译：本发明涉及用于控制和抑制包括苯乙烯在内的芳族乙烯基单体的聚合的胺基添加剂组合物，其包含（a）一种或多种氮氧化物（即硝酰基）化合物; 和（b）一种或多种芳族硝基化合物，其特征在于所述组合物还包含一种或多种（c）胺，其中所述胺选自（i）羟基烷基叔胺，（ii）叔胺烷基胺，（iii）羟基烷基伯胺; 和（iv）其混合物。在一个实施方案中，本发明还涉及使用目前提供的组合物的方法。在另一个实施方案中，本发明还涉及通过使用目前提供的组合物来控制和抑制包括苯乙烯的芳族乙烯基单体聚合的方法。在另一个实施方案中，本发明还涉及制备目前提供的组合物的方法。

10. 发明授权

US08840781B2 Additive and method for removal of calcium from crude oils containing calcium naphthenate 有权
标题翻译：从含有环烷酸钙的原油中除去钙的添加剂和方法
公开(公告)号：US08840781B2
公开(公告)日：2014-09-23
申请号：US14128231
申请日：2012-06-26
申请人： Mahesh Subramaniyam
发明人： Mahesh Subramaniyam
IPC分类号： C10G29/24 , C10G21/16 , C10G29/22
CPC分类号： C10G29/24 , C07C37/72 , C07C47/127 , C10G21/16 , C10G29/22 , C10G2300/203 , C10G2300/205 , C10G2300/80 , C07C39/14
摘要： There is provided an additive and method for removal of calcium from crude oil or its blends containing calcium naphthenate at low pH as well as at high pH varying from 5 to 11, preferably from 6 to 11, more preferably from 7 to 11, wherein the additive is glyoxal and said pH is of the wash water for crude oil processing systems.There is also provided an additive and method for removal of calcium from crude oil or its blends containing calcium naphthenate, wherein crude oil is treated with wash water containing alkaline medium selected from the group comprising sodium hydroxide (NaOH or caustic), ammonia or amine compound, or mixture thereof, and wherein pH of the wash water or of the processing mixture in the desalter varies from 5 to 11, preferably from 6 to 11, preferably from 7 to 11, characterized in that the additive is glyoxal and the crude oil or its blend is treated with glyoxal.
摘要翻译：提供了一种添加剂和方法，用于在低pH值以及从5至11，优选6至11，更优选7至11的高pH下从原油或其含有环烷酸钙的混合物中除去钙，其中添加剂是乙二醛，所述pH是原油处理系统的洗涤水。还提供了从原油或其含有环烷酸钙的共混物中除去钙的添加剂和方法，其中使用含有碱性介质的洗涤水处理原油，所述碱性介质选自氢氧化钠（NaOH或苛性碱），氨或胺化合物或其混合物，并且其中洗涤水或脱盐剂中的处理混合物的pH为5至11，优选6至11，优选7至11，其特征在于添加剂为乙二醛，并且原油或其混合物用乙二醛处理。

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