An aerosol electronic cigarette includes a battery assembly, an atomizer assembly and a cigarette bottle assembly and also includes a shell (a) which is hollow and integrally formed. Said battery assembly connects with said atomizer assembly and both are located in said shell (a). Said cigarette bottle assembly is located in one end of the shell (a), which is detachable. Said cigarette bottle assembly fits with said atomizer assembly. Said shell (a) has through-air-inlets (a 1 ).

Aerosol electronic cigarette

An electrically heated smoking system includes a shell and a replaceable mouthpiece. The shell includes an electric power supply and electric circuitry. The mouthpiece includes a liquid storage portion and a capillary wick having a first end and a second end. The first end of the wick extends into the liquid storage portion for contact with liquid therein. The mouthpiece also includes a heating element for heating the second end of the capillary wick, an air outlet, and an aerosol forming chamber between the second end of the capillary wick and the air outlet. When the shell and mouthpiece are engaged or connected, the heating element is in electrical connection with the power supply via the circuitry, and a flowpath for air is defined from at least one air inlet to the air outlet via the aerosol forming chamber. In use, liquid is transferred from the liquid storage portion towards the heating element by capillary action in the wick. Liquid at the second end of the capillary wick is vaporized by the heating element. The supersaturated vapor created, is mixed and carried in the air flow from the at least one air inlet to the aerosol forming chamber. In the aerosol forming chamber, the vapor condenses to form an aerosol, which is carried towards the air outlet.

Electrically heated smoking system having a liquid storage portion

An electronic smoking article includes a liquid supply including liquid material, a heater operable to heat the liquid material to a temperature sufficient to vaporize the liquid material and form an aerosol, a wick in communication with the liquid material and in communication with the heater such that the wick delivers the liquid material to the heater, and at least one air inlet operable to establish a predetermined resistance to draw under a prescribed test of said smoking article.

Electronic cigarette and method

An improved medicant delivery system 100 is disclosed wherein the carrier for the medicant is a fluid that can be atomized or vaporized by exposure to heat. The system provides for repeatable dose of medicant, can be stored in any orientation, and/or has an ability to maximize energy efficiency.

Medicant delivery system

An apparatus comprising a heater configured to heat smokeable material to volatilize at least one component of the smokeable material, wherein the heater is elongate and comprises a plurality of independently controllable heating regions arranged sequentially along a longitudinal axis of the heater.

Heating smokeable material

The invention relates to a process for the preparation of cumene by reacting isopropanol or a mixture of isopropanol and propene with benzene in presence of a β-zeolite catalyst having a SiO2/Al2O3 molar ratio greater than 10:1 that can be integrated in a process for preparing phenol, which comprises the stepsI. preparation of cumene as described above, II. oxidation of cumene to cumene hydroperoxide, III. acid-catalyzed cleavage of cumene hydroperoxide to give phenol and acetone and IV. hydrogenation of acetone to form isopropanol.In the reaction of isopropanol with benzene, propene is formed by dehydration of isopropanol simultaneously with the alkylation of benzene to cumene by means of isopropanol and the propene formed is likewise used for the alkylation of benzene to cumene. Formation of n-propylbenzene in this process step according to the invention is barely observed or is in the range below 150 wppm.The s-zeolite catalyst having a SiO2/Al2O3 molar ratio greater than 10:1 exhibits an increased activity in the alkylation of benzene and leads to a higher selectivity in the alkylation, so that the yield in the overall process for preparing phenol can be improved compared to conventional processes.

Process for preparing cumene which is used in the preparation of phenol

Die Erfindung betrifft ein Verfahren zur Herstellung von Phenol, welches die Schritte DOLLAR A I. Herstellung von Cumol durch Umsetzung von Isopropanol mit Benzol an einem sauren Katalysator, DOLLAR A II. Oxidation von Cumol zu Cumolhydroperoxid, DOLLAR A III. saurekatalysierte Spaltung von Cumolhydroperoxid zu Phenol und Aceton und DOLLAR A IV. Hydrierung von Aceton zu Isopropanol DOLLAR A umfasst, DOLLAR A und welches dadurch gekennzeichnet ist, dass bei der Umsetzung von Isopropanol mit Benzol simultan zur Alkylierung von Benzol zu Cumol mit Isopropanol durch Dehydratisierung von Isopropanol Propen gebildet wird, wobei gebildetes Propen ebenfalls zur Alkylierung von Benzol zu Cumol verwendet wird. Eine Bildung von n-Propylbenzol wird bei diesem erfindungsgemasen Verfahrensschritt kaum beobachtet bzw. liegt im Bereich von weniger als 150 wppm. DOLLAR A Die erfindungsgemase Verbesserung gegenuber den herkommlichen, in der Literatur beschriebenen Verfahren besteht darin, dass das Propen, welches bei der Dehydratisierung von Isopropanol, welches eine Konkurrenzreaktion zur Alkylierung von Benzol zu Cumol mit Isopropanol darstellt, anfallt, ebenfalls zur Alkylierung von Benzol zu Cumol verwendet wird. Durch das erfindungsgemase Verfahren konnte die n-Propylbenzol-Bildung auserdem dadurch minimiert werden, dass sie primar stattfindende Dehydratisierungsreaktion des Isopropanols das sauremodifizierende Reagenz Wasser fur den Zeolitzkatalysator zur Verfugung stellt. Dies fuhrt zu einer hoheren Selektivitat bei der ...

Michael Sakuth

Papers

Process for preparing cumene which is used in the preparation of phenol

Verfahren zur Herstellung von Phenol