Use "hydrogenation|hydrogenations" in a sentence

1. Hydrogenation of acetylene

2. Asymmetric hydrogenation catalyst

3. Catalytic Hydrogenation of Alkynes

4. Hydrogenation of β-Acylamido Acrylates

5. Catalytic hydrogenation, is it protic or aprotic?

6. Enantiotech Bimah Ru BINAP Catalyst Kit for Asymmetric Hydrogenation: 96-3710 Enantiotech Bimah Ru Tol-BINAP Catalyst Kit for Asymmetric Hydrogenation

7. Process for preparing diaminotoluene by multistage adiabatic hydrogenation

8. Encapsulated hydrogenation catalysts with controlled dispersion and activity

9. Enantiotech Bimah Ligand Kit for Asymmetric Hydrogenation: 96-3705

10. Kinetics and mechanism of olefin hydrogenation by supported pentamethylcyclopentadienyl Actinide complexes

11. Hydrogen is an important feedstock used in petrochemical enterprises ? ? hydrogenation process.

12. By avoiding hydrogenation, trans and saturate fatty acid levels are not increased.

13. Key words: adsorption isotherm, electrocatalytic hydrogenation (ECH), cyclohexanone, aluminum oxide – hydroxide powders.

14. If hydrogenation is incomplete (partial hardening), the relatively high temperatures used in the hydrogenation process tend to flip some of the carbon-carbon double bonds into the "trans" form.

15. Nitriles are converted to primary amines by catalytic hydrogenation in acetic acid.

16. Bifunctional catalysts based on first row transition metals have widely been applied to asymmetric hydrogenations (AH) along the past decade

17. The pyrolysis and hydrogenation are conducted in a current of hydrogen containing ammonia, and the ammonium halides formed are collected in an absorption tube attached to the hydrogenation tube.

18. Disclosed are catalysts comprising copper chromite, palladium and lanthanum having hydrogenation activity.

19. The present invention relates to an amorphous alloy hydrogenation catalyst and its preparation.

20. Exciting results were also observed in the hydrogenation of β-Acylamido acrylates (Table 2)

21. The preparation of HFC - 32 by catalytic hydrogenation of CFC - 12 was explored.

22. It is used as a catalyst in reactions such as alkylation, dealkylation, hydrogenation and oxidation.

23. Optimized metering of reactants for a process for preparing aromatic amines by hydrogenation of nitroaromatics

24. The hydrogenation of 2-methylquinoxaline is a model system for the reduction of folic acid.

25. A new series of commercially proven alumina Catalysts is now available with new performance features that can benefit selective hydrogenation applications such as first stage PYGAS or selective hydrogenation of dienes in C4 olefin streams.

26. The integrated process increases the overall catalytic activity and hydrogenation capability to produce superior distillate products.

27. In addition, the hydrogenation reactor suppresses sub-reactions to improve the production yield of alcohols.

28. Pt or Ni metal kept in contact with a gas Adsorbs the gas - Hydrogenation of oils

29. Process for the preparation of high activity carbon monoxide hydrogenation catalysts; the catalyst compositions, and their use

30. Hydrogenation of lactone 6 produces allo lactone 14 whose further reduction with lithium aluminum hydride gives diol 15.

31. Adipocere, "grave wax," is a waxy or greasy decomposition product formed by hydrolysis and hydrogenation of tissue fats

32. Catalyst for selective hydrogenation of acetylene compounds in 1,3-butadiene, method for producing the same and method of using the same

33. 18 Evonik Degussa carries out hydrogenation of rich gas and then processes it as part of a pressure-swing adsorption process.

34. The device was used to determine heats (enthalpies) of solution of several homologous, linear alkanes in glacial acetic acid so as to provide correction factors to convert heats of hydrogenation determined in acetic acid into heats of hydrogenation of the pure liquid alkene to the liquid alkane.

35. It can be used as catalysts for acylation, alkylation, dimerization, oligomerization, polymerization, hydrogenation, dehydrogenation, aromatization, isomerization, hydrotreating, catalytic cracking and hydrocracking reactions.

36. Nanometer-sized copper-based catalyst, production method thereof, and alcohol production method using the same through direct hydrogenation of carboxylic acid

37. Especially, the ionic iridium complex of the phosphine oxazoline ligand obtains excellent reactional activity and enantioselectivity in the asymmetric hydrogenation of imine and olefin.

38. 24 A multi-metal alloy catalyst for hydrogenation of acetonitrile to ethylamine was prepared using hydrazine hydrate and potassium borohydride as the co- reductant .

39. Homogeneous catalytic hydrogenation was not successful, but samarium diiodide did effectively and selectively cleave one of the N—O bonds in a number of nitroso acetals.

40. For instance, the reactions with (E)- and (Z)-crotylboronates afforded the corresponding anti- and syn-crotylated products (isoleucine and alloisoleucine after hydrogenation) with high diastereoselectivity, respectively.

41. Putrescine and Cadaverine were first described in 1885 by the Berlin physician Ludwig Brieger (1849–1919). Putrescine is produced on an industrial scale by hydrogenation of succinonitrile

42. MAPP was discontinued by Dow as a marketed product and hydrogenation of the C4 and C3 Acetylenes (even at the cost of some product losses) became the standard.

43. The hydrogenation is used to convert the contaminants to hydrogen sulfide and ammonia, which in this form are easy to separate from the other components of the liquid inflow.

44. Cottonseed, seed of the cotton plant, important commercially for its oil and other products. Cottonseed oil is used in salad and cooking oils and, after hydrogenation, in shortenings and margarine

45. Sigma-Aldrich offers a market-leading range of innovative Catalysts and ligands, metal and ligand precursors, and inorganic complexes for fundamental processes such as cross-coupling, hydrogenation, and oxidation/reduction.

46. Several types of model compounds were subjected to some common reactions: acetylation, saponification, oxidation, reduction, hydrogenation, bromination, nitration, esterification, etherification, mineral acid treatment, chloride formation, acetonide formation and 2,4-dinitrophenylhydrazone formation.

47. In order to increase the resource efficiency of the acetophenone hydrogenation unit in the SMPO production process, BAT is to minimise excess hydrogen or to recycle hydrogen by using BAT 8a.

48. Interstellar Medium, Astrochemistry, Time Dependent, Production Rate New Rate Constants of Hydrogenation on Interstellar Grains and their Astrophysical Implications For the gas-grain chemical models the surface reactions and their rate constants are …

49. The ordered cobalt-aluminum and iron-aluminum intermetallic compounds proved to be highly selective and long-term stable catalysts, e.g. in the selective hydrogenation of acetylene to ethylene in a large excess of ethylene.

50. A method for the absorption of alkynes and diolefins from an ethylene or propylene containing stream with conversion to alkenes by catalytic hydrogenation in a solvent over a fixed bed comprising a supported catalyst.

51. A Resol‐Assisted Cationic Coordinative Co‐assembly Approach to Mesoporous ABO3 Perovskite Oxides with Rich Oxygen Vacancy for Enhanced Hydrogenation of Furfural to Furfuryl Alcohol - Zheng - - Angewandte Chemie International Edition - Wiley Online Library Angewandte Chemie International Edition

52. Here, the one-step conversion of mucic acid to Adipates was achieved in high yield through deoxydehydration (DODH) and catalytic transfer hydrogenation (CTH) by a bifunctional Pt-ReOx/C heterogeneous catalyst with isopropanol as solvent and reductant

53. In contrast to 1,3-butadiene, the textbook example of “conjugation stabilization”, G3(MP2) calculations yielding the enthalpy of hydrogenation ΔhydH298 of 1,3-Butadiyne indicate that it is not stabilized by the conjugated configuration of its triple bonds

54. Lithium 3-methylbutyne Acetylide (169) was allowed to react with ethyl tert -butyl oxalate (170) to give unsaturated keto ester 171, which on hydrogenation, followed by hydrolysis with trifluo-roacetic acid, provided the saturated keto acid 172.

55. The invention relates to an improved process for preparing 3-aminomethyl-3,5,5-trimethylcyclohexylamine, referred to hereinafter as isophoronediamine or, in abbreviated form, IPDA, by: I. preparation of isophorone by catalyzed aldol condensations with acetone as reactant; II. reaction of isophorone with HCN to form isophoronenitrile (IPN, 3-cyano-3,5,5-trimethylcyclohexanone); III. catalytic hydrogenation and/or catalytic reductive amination (also referred to as aminative hydrogenation) of 3-cyano-3,5,5-trimethylcyclohexanone, hereinafter called isophoronenitrile or, in abbreviated form, IPN, to give the isophoronediamine.

56. Catalyst, consisting predominantly of dichromium copper tetraoxide and copper (II) oxide, containing by weight 38 % or more but not more than 48 % of copper, evaluated as copper (II) oxide, fixed on a support of silicon dioxide, for the hydrogenation of acetophenones ()

57. In addition, according to another method of the present invention, the stability and economic efficiency of the hydrogenation process can be increased by maintaining the activity of a catalyst for a long time and improving the performance of the catalyst.

58. Catalyst, consisting predominantly of dichromium copper tetraoxide and copper (II) oxide, containing by weight 38 % or more but not more than 48 % of copper, evaluated as copper (II) oxide, fixed on a support of silicon dioxide, for the hydrogenation of acetophenones (1)

59. Adipocere Also known as “grave wax,” Adipocere (from the Latin, adipo for fat and cera for wax) is a grayish-white postmortem (after death) matter caused by fat decomposition, which results from hydrolysis and hydrogenation of the lipids (fatty cells) that compose subcutaneous (under the skin) fa

60. Hydrogen can be used in chemical reactions (e.g. production of ammonia, hydrogen peroxide, hydrochloric acid, and methanol; reduction of organic compounds; hydrodesulphurisation of petroleum; hydrogenation of oils and greases; chain termination in polyolefin production) or as a fuel in a combustion process to produce steam and/or electricity or to heat a furnace.

61. The resulting Bilayer catalysts, owing to unique electronic properties and the abundant metal‐oxide interfaces created, exhibit excellent catalytic performances in the reactions of preferential oxidation of CO in H 2 and selective hydrogenation of acetylene, by showing much higher selectivity and intrinsic activities at least 8 and 48 times

62. The rhodium(I)-catalyzed enantioselective hydrogenation of E- and Z-configured β-Acylamido β-alkylacrylates as well as of isomeric mixtures has been investigated.As ligands 1,2-bisphospholanes like DuPHOS, BPE and Me 4-BASPHOS have been tested, but also diphosphines forming seven-membered chelates such as DIOP.The effect of additional oxy groups in the …

63. Petroleum hydrocarbon resins, hydrogenated are produced by the catalytic or thermalpolymerisation of dienes and olefins of the aliphatic, alicyclic and/or monobenzenoidarylalkene types from distillates of cracked petroleum stocks with a boiling range not greater than 220 °C, as well as the pure monomers found in these distillation streams, subsequently followed by distillation, hydrogenation and additional processing.

64. After removal of the Z group from the N-terminus of the resulting dipeptide 42 by catalytic hydrogenation, the product was coupled with N-Fmoc-protected (2R,1'R,2'R)-[3-(mono-, di- or tri-)fluoromethylcyclopropyl]Alanines 41a–c to yield tripeptides 47a–c, which, in turn, after deprotection with Et 2 NH/THF, were coupled with N-Fmoc

65. In the process for hydrogenating Butadiyne over a catalyst which comprises at least one platinum group metal on an inorganic metal oxide as a support, the hydrogenation is performed at a pressure in the range from 1 to 40 bar and a temperature in the range from 0 to 100° C., and from 0.05 to 5% by weight, based on the overall catalyst, of platinum group metal is present on the support.

66. The present invention relates to isononylamines starting from 2-ethylhexanol, to processes for preparing them by dehydration of 2-ethylhexanol to an octene, subsequent hydroformylation to isononanal, optional subsequent hydrogenation to isononanol, subsequent reductive amination or optional ammonolysis to isononylamines, and to their use as corrosion inhibitors, as assistants in rubber formulations, as vulcanization accelerators and also as additives in lubricants to improve the abrasion resistance of mechanical apparatus operated under elevated pressure.

67. All processes directly or indirectly linked to the production of phenol and acetone are included, in particular air compression, hydroperoxidation, cumene recovery from spent air, concentration & cleavage, production fractionation & purification, tar cracking, acetophenone recovery & purification, AMS recovery for export, AMS hydrogenation for ISB recycle, initial waste water purification (1st waste water stripper), cooling water generation (e.g., cooling towers), cooling water utilisation (circulation pumps),flare & incinerators (even if physically located OSB) as well as any support fuel consumption.

68. The invention relates to a method for producing 6-methylheptane-2-one characterised by, a) hydroformylation of 2-methylpropene into 3-methylbutanal, b) basic catalysed aldol condensation of the 3-methylbutanal with acetone into 6-methylhept-3-ene-2-one, whereby the molar ratio of 3-methylbutanal to the base that is used is greater than 1: 0.3 and c) hydrogenation of the 6-methylhept-3-ene-2-one to obtain 6-methyl-heptane-2-one.