dicyclohexylamine dcha used as pesticides and catalyst
dicyclohexylamine dcha used as pesticides and catalyst
dicyclohexylamine dcha used as pesticides and catalyst
dicyclohexylamine dcha used as pesticides and catalyst
dicyclohexylamine dcha used as pesticides and catalyst
dehydrogenation of dicyclohexylamine in gaseous phase over a

Dehydrogenation of dicyclohexylamine in gaseous phase over a

Introduction The present study examines the behavior of dicyclohexylamine over a nickel catalyst in the gaseous phase under reaction conditions of 433¨C463 K and a high molar excess of hydrogenation gas during which the equilibrium reaction of hydrogenation/dehydrogenation plays an important role.

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cascade hydrogenation of nitrobenzene to dicyclohexylamine with pd/¦Ã

Cascade hydrogenation of nitrobenzene to dicyclohexylamine with Pd/¦Ã

Direct hydrogenation of nitrobenzene (NB) to dicyclohexylamine (DCHA) is a green but challenging process due to the competition of cross-coupling reaction (to DCHA) and hydrogenation reaction (to byproduct). Herein, we report that the cross-coupling reaction to desired DCHA is greatly enhanced by tuning the acidity of supported Pd catalysts.

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thermodynamic analysis on disproportionation process of cyclohexylamine

Thermodynamic analysis on disproportionation process of cyclohexylamine

CHA is produced by catalytic hydrogenation of aniline (AN), or alternative route to obtain this cyclo-aliphatic amine is reaction of cyclohexanol (CH-anol) with ammonia5. DCHA is produced as well...

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dehydrogenation of dicyclohexylamine in gaseous phase over a

Dehydrogenation of dicyclohexylamine in gaseous phase over a

Abstract This work deals with a study of the efect of reaction temperature and partial pressure of hydrogen on the product selectivity of the gas-phase dehydrogenation of dicyclohexylamine.

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(pdf) thermodynamic analysis on disproportionation process

(PDF) Thermodynamic analysis on disproportionation process

DCHA ¨C Dicyclohexylamine. GC ¨C Gas ... the selectivity of the title reaction could be increased to about 90% by promoting traditional type nickel catalysts with NaOH. The use of strongly basic

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occupational allergic contact dermatitis to dicylohexylamine in a

Occupational allergic contact dermatitis to dicylohexylamine in a

Its pH-stabilizing and biocidal properties are additional reasons for adding DCHA. 4 Among other applications, it serves also as rubber vulcanization accelerator, antioxidant, pesticide, and catalyst for paints, varnishes and ink. DCHA is a colourless corrosive liquid which is readily absorbed by the skin. 4 It causes skin irritation and is

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delaminated mww-type zeolite and its catalytic performance in

Delaminated MWW-type zeolite and its catalytic performance in

In our previous work [31], a method for the direct synthesis of a delaminated MWW-type zeolite was achieved by introducing dicyclohexylamine (DCHA) as an assistant organic additive into the conventional synthesis system. This newly developed zeolite, named as SCM-1, can act as a highly efficient catalyst in alkylation of benzene with ethylene.

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research article - springer

RESEARCH ARTICLE - Springer

For example, dicyclohexylamine (DCHA) is used as an excellent corrosion inhibitor in steam pipes and boilers [1,2], a vulcanization accelerator for synthetic rubber [3,4], and a useful commercial insecticide [5].

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dicyclohexylamine - wikipedia

Dicyclohexylamine - Wikipedia

[1] Synthesis Dicyclohexylamine, as a mixture with cyclohexylamine, is prepared by the catalytic hydrogenation of aniline (phenylamine), with a catalyst of ruthenium and/or palladium. This method produces mainly cyclohexylamine with little dicyclohexylamine.

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cyclohexylamine and dicyclohexylamine | industrial & engineering chemistry

Cyclohexylamine and Dicyclohexylamine | Industrial & Engineering Chemistry

Liquid?Liquid (?Liquid) Equilibria in Ternary Systems of Water + Cyclohexylamine + Aromatic Hydrocarbon (Toluene or Propylbenzene) or Aliphatic Hydrocarbon (Heptane or Octane).

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