Method for producing 1,3-butadiene from 1,4-butanediol

A method for producing 1,3-butadiene from a 1,4-butanediol feedstock: One step for esterification of 1,4-butanediol, One step for pyrolysis of 1,4-butanediol diester, producing butadiene.

METHOD FOR ESTERIFICATION OF A DIOL USING A REACTIVE DISTILLATION

The invention relates to a conversion method that is fed with a diol feedstock that comprises at least 90% by weight of diol and a carboxylic acid feedstock that comprises at least 80% by weight of carboxylic acid. The method comprising at least: 1. Conversion method that is fed with a diol feedstock that comprises at least 90% by weight of diol and a carboxylic acid feedstock that comprises at least 80% by weight of carboxylic acid , with said method comprising at least:An esterification step, fed with at least said diol feedstock and at least said carboxylic acid feedstock, with the feed flow rates being adjusted in such a way that the carboxylic acid/diol molar ratio at the inlet of said esterification step is between 2 and 6, with said esterification step comprising at least one reactive distillation column operated at a temperature of between 40 and 280° C., at a pressure of between 0.01 and 0.5 MPa, with a molar reflux rate of between 0.5 and 10, and a molar reboil rate of between 0.5 and 10, consisting of a mixed reaction/separation zone located between two separation zones, with each of said separation zones having an effectiveness of at least two theoretical stages, said mixed zone comprising an acid heterogeneous catalyst, said esterification step producing at least one distillate that comprises water and a diol-diester residue;A water elimination step that is fed with said distillate comprising water and producing at least one water effluent.2. Conversion method according to claim 1 , in which the carboxylic acid/diol molar ratio at the inlet of said esterification step is between 2 and 4.3. Conversion method according to claim 1 , in which the dwell time in said reactive distillation column claim 1 , defined as the volume of the reactive distillation divided by the volumetric flow rate of said diol feedstock and said carboxylic acid feedstock claim 1 , is between 0.5 h and 10 h.4. Conversion method according to claim 1 , in which said water elimination ...

Method for producing 1,3-butadiene from 1,4-butanediol

A method for producing 1,3-butadiene from a 1,4-butanediol feedstock: One step for esterification of 1,4-butanediol, One step for pyrolysis of 1,4-butanediol diester, producing butadiene.

Method for preparing a solid material for storing ozone, the material and the uses thereof

The present invention relates to a method and a unit for preparing a solid material for storing ozone, said method comprising contacting cyclodextrins and/or derivatives of cyclodextrins in solid form with a gas comprising ozone, by means of which a solid material for storing ozone is obtained. The present invention also relates to the material thus prepared and to the uses thereof.

METHOD FOR CONTROLLING EQUIPMENT OF A COCKPIT OF A VEHICLE AND RELATED DEVICES

A method for controlling pieces of equipment of a passenger compartment of a vehicle from a sound signal, each piece of equipment preferably being chosen from the list consisting of a seat, lighting, a dashboard and a ventilation system. The method includes determining a category to which the sound signal supplied belongs, from a list of predefined categories, the categories being representative of the nature of the sound signal, assigning a class to the sound signal from a list of predefined classes associated with the determined category, the classes being a description of the sound produced by the sound signal when the sound signal is read, and the generation, depending on the class assigned to the sound signal, of at least one control signal to at least one piece of equipment in the passenger compartment. 1. Method for controlling pieces of equipment of a passenger compartment of a vehicle from a sound signal , the method comprising the steps of:determining a category to which the sound signal supplied belongs from a list of predefined categories, the categories being representative of the nature of the sound signal,assigning a class to the sound signal from a list of predefined classes associated with the determined category, the classes being a description of the sound produced by the sound signal when the sound signal is read, andgenerating, depending on the class assigned to the sound signal, of at least one control signal intended for at least one piece of equipment in the passenger compartment.2. Method according to claim 1 , wherein the step of determining the category of the sound signal comprises:determining the properties of the sound signal, andfor each category of the list of predefined categories, calculating a score representative of the probability that the sound signal belongs to said category from the determined properties of the sound signal, so as to obtain a score calculated for each category,the step of calculating the probability being ...

Automatic hypodermic syringe

A hypodermic syringe and automatic needle insertion device wherein the syringe is biased against a trigger when the needle is in its retracted position. Upon release of the trigger the syringe and needle are driven forward, extending the needle into the underlying tissue. The depth of insertion may be predetermined by the attachment of an interchangeable stop or foot extension.

THICK BOTTOM GLASS IN PLASTIC MATERIAL

Method for controlling equipment in a vehicle interior and associated devices

Procédé de commande d’équipements d’un habitacle d’un véhicule et dispositifs associés La présente invention concerne un procédé de commande d’équipements (15) d’un habitacle d’un véhicule (10) à partir d’un signal sonore, les équipements étant de préférence choisis dans la liste constituée d’un siège, un éclairage, un tableau de bord et un système de ventilation. Le procédé comprend la détermination d’une catégorie à laquelle appartient le signal sonore fourni parmi une liste de catégories prédéfinies, les catégories étant représentative de la nature du signal sonore, l’attribution d’une classe au signal sonore parmi une liste de classes prédéfinies associées à la catégorie déterminée, les classes étant une description du son produit par le signal sonore lors d’une lecture du signal sonore, et la génération, en fonction de la classe attribuée au signal sonore, d’au moins un signal de commande à destination d’au moins un équipement (15) de l’habitacle. Figure pour l'abrégé : Figure 1 Method for controlling equipment in the passenger compartment of a vehicle and associated devices The present invention relates to a method for controlling equipment (15) in the passenger compartment of a vehicle (10) from an audible signal, the equipment being preferably chosen from the list consisting of a seat, lighting, a dashboard and a ventilation system. The method comprises determining a category to which the supplied sound signal belongs from among a list of predefined categories, the categories being representative of the nature of the sound signal, assigning a class to the sound signal from among a list of predefined classes associated with the determined category, the classes being a description of the sound produced by the sound signal during a reading of the sound signal, and the generation, as a function of the class attributed to the sound signal, of at least one control signal to destination of at least one item of equipment (15) in the passenger compartment. Figure ...

CONTAINER FOR THE TRANSPORT AND CONSERVATION OF FOOD AT THEIR CONSUMER TEMPERATURE.

CONTAINER FOR THE TRANSPORT AND CONSERVATION OF FOOD AT THEIR CONSUMER TEMPERATURE.

Ce récipient est composé d'un réceptacle creux 2 et d'un couvercle 3 d'obturation de sa cavité 2a.Selon l'invention, le réceptacle 2 et son couvercle 3 sont chacun réalisés monolithiquement par moulage dans une matière thermoplastique expansée et comprennent localement, respectivement, sous le fond 2b du réceptacle et contre la face inférieure du couvercle 3, une couche surmoulée, respectivement 4 et 5, en matériau viscoélastique, formant barrière thermique et, respectivement, sous le fond du récipient 2, semelle anti glissement et, sous le couvercle 3, joint d'étanchéité 17, tandis que le couvercle 3 présente, de moulage, au moins deux pattes radiales 23 dont les extrémités sont aptes à pénétrer dans des encoches 9 de deux ailettes 8 saillant radialement à l'extérieur du récipient, pour assurer le verrouillage du couvercle sur ce dernier. This container is composed of a hollow receptacle 2 and a lid 3 for closing off its cavity 2a. According to the invention, the receptacle 2 and its lid 3 are each made monolithically by molding in an expanded thermoplastic material and comprise locally respectively under the bottom 2b of the receptacle and against the underside of the cover 3, an overmolded layer, 4 and 5 respectively, of viscoelastic material, forming a thermal barrier and, respectively, under the bottom of the container 2, anti-slip sole and, under the cover 3, seal 17, while the cover 3 has, at least one molding, at least two radial tabs 23, the ends of which are capable of penetrating into notches 9 of two fins 8 projecting radially outside the container , to ensure the lid lock on the latter.

Handle for tableware i.e. spoon, has anterior loop formed in strap and engaged in channel, and strands forming bridles extending above handle when ends of strands are engaged in hole and displaced in translation with respect to handle

The handle (2) has a transversal channel (7) formed at an anterior end and opening towards the bottom, and a hole (8) formed at a posterior end and juxtaposed to a terminal hinge plate (9). A strap (6) is constituted by an elastomer cord. An anterior loop (6a) is formed in the strap, and is engaged in the transversal channel. Two parallel strands (6b) of the loop form bridles (11) extending above the handle when ends (6c) of the strands are engaged in the hole and displaced in translation with respect to the handle.

METHOD FOR ESTERIFYING A DIOL IMPLEMENTING A REACTIVE DISTILLATION

L'invention concerne un procédé de conversion alimenté par une charge diol comprenant au moins 90%poids de diol et une charge acide carboxylique comprenant au moins 80%poids d'acide carboxylique, ledit procédé comprenant au moins : - une étape d'estérification, alimentée par au moins ladite charge diol et au moins ladite charge acide carboxylique, les débits d'alimentation étant ajustés de telle sorte que le ratio molaire acide carboxylique/diol en entrée de ladite étape d'estérification est compris entre 2 et 6, ladite étape d'estérification comprenant au moins une colonne de distillation réactive opérée à une température comprise entre 40 et 280°C, à une pression comprise entre 0,01 et 0,5 MPa, avec un taux de reflux molaire compris entre 0,5 et 10 et un taux de rebouillage molaire compris entre 0,5 et 10, constituée d'une zone mixte de réaction/séparation située entre deux zones de séparation, chacune desdites zones de séparation ayant une efficacité d'au moins deux étages théoriques, ladite zone mixte comprenant un catalyseur hétérogène acide, ladite étape d'estérification produisant au moins un distillat comprenant de l'eau et un résidu diester de diol ; - une étape d'élimination de l'eau alimentée par ledit distillat comprenant de l'eau et produisant au moins un effluent eau. The invention relates to a conversion process fed with a diol charge comprising at least 90% by weight of diol and a carboxylic acid charge comprising at least 80% by weight of carboxylic acid, said process comprising at least: an esterification step, fed with at least said diol charge and at least said carboxylic acid charge, the feed rates being adjusted so that the carboxylic acid / diol molar ratio at the inlet of said esterification step is between 2 and 6, said step esterification composition comprising at least one reactive distillation column operated at a temperature between 40 and 280 ° C, at a pressure of between 0.01 and 0.5 ...

Food container i.e. soup plate, for use in self-service restaurant, has protective bell and legs with bent return unit that is projected inwardly and inserted elastically under edge of container to form wedging unit in vertical translation

L'invention à pour objet d'assurer la protection des aliments par une cloche formant avec le récipient un ensemble quasi monolithique pouvant être déplacé d'une seule main. Selon l'invention, la cloche 3 est réalisée en matière plastique transparente et présente, en saillie de sa périphérie et vers le bas, de trois à quatre pattes verticales 8 aptes à coulisser verticalement contre le bord périphérique 2c du récipient et constituant moyens de calage en translation horizontale. Au moins deux de ces pattes 8 comportent un retour coudé 9 saillant vers l'intérieur et apte à s'insérer élastiquement sous le bord du récipient pour constituer moyen de calage en translation verticale. Les pattes 8 sont disposées aux pieds de bossages 6 de rigidification. Ces pieds sont traversés par des évents 10.

CONTAINER SUPPORT

Le support (1) de récipient comprend une partie réceptacle (la) prolongée, sur un côté au moins, par une partie apte à faire office de poignée (lb), chacune desdites parties étant réalisées en matière plastique souple intégrant dans son épaisseur une armature métallique (2) pour être déformable et adaptable ergonomiquement à un utilisateur. L'armature métallique (2) est du type filaire et est réalisée en un seul élément présentant un segment semi-circulaire (2a), correspond à la partie réceptacle (la), ledit segment (2a) étant prolongé, d'un côté au moins, par un segment rectiligne (2b) terminé par une boucle ouverte (2b 1), correspondant à au moins la partie apte à faire office de poignée (lb). The container support (1) comprises a receptacle portion (1a) extended, on at least one side, by a portion adapted to act as a handle (1b), each of said parts being made of flexible plastic material integrating in its thickness a reinforcement metal (2) to be deformable and adaptable ergonomically to a user. The metal reinforcement (2) is of wire type and is made of a single element having a semicircular segment (2a), corresponds to the receptacle portion (1a), said segment (2a) being extended, on one side to the less, by a rectilinear segment (2b) terminated by an open loop (2b 1), corresponding to at least the portion adapted to act as a handle (Ib).

Cover device for plate and protective screen

L’invention concerne un dispositif (1) de cloche pour assiette (2) et d’écran de protection remarquable en ce qu’il comprend une base (3) formant support pour une assiette (2), adaptée aux dimensions de l’assiette (2), et un élément (6) relié de manière pivotante à la base (3) pour passer d’une position fermée dans laquelle il protège l’assiette (2) et forme une cloche, à une position ouverte dans laquelle il s’étend verticalement et forme un écran de protection Figure pour l’abrégé : Fig. 8 The invention relates to a device (1) for a cover for a plate (2) and for a protective screen, remarkable in that it comprises a base (3) forming a support for a plate (2), adapted to the dimensions of the plate (2), and an element (6) pivotally connected to the base (3) to pass from a closed position in which it protects the plate (2) and forms a bell, to an open position in which it is 'extends vertically and forms a shield Figure for the abstract: Fig. 8

TABLE USTENSILE SLEEVE WITH HAND DRAWING DRAGONNE

METHOD FOR ESTERIFYING A DIOL IMPLEMENTING A REACTIVE DISTILLATION

Utensil having an adjustable shape for a person with reduced mobility, and manufacture thereof

The invention relates to a utensil that comprises a gripping portion P, an end portion T for contacting food, and an intermediate portion D that comprises a plastically deformable metal core (2) embedded in an elastically deformable plastic material (15). According to the invention, the bonding between the metal core (2) of the intermediate portion D and the layer (15) of viscoelastic plastic material is provided by a structure (3) that is made of a rigid plastic material and forms anchoring lugs (10a, 10b, 11) in several areas of said metal core (2) and extends at (3a) at least on the side of the gripping portion P, the back of said portion being covered by the viscoelastic material (15). With this structure, the core (2) is perfectly positioned and the plastic deformations of the intermediate portion D have no impact on the cohesion between the viscoelastic material (15) and the metal core (2).

PROCESS FOR PRODUCING DIOLEFINS FROM DILUTED DIOL LOAD

L'invention concerne un procédé de production de dioléfines à partir d'une charge diol diluée, c'est-à-dire contenant de 1 à 30% poids de diol, comprenant au moins les étapes suivantes : a) une étape d'acétalisation, comprenant une section de réaction-séparation alimentée par ladite charge diol diluée et par une charge carbonyle comprenant au moins l'effluent carbonyle issu de l'étape b) d'estérification, et comprenant également au moins une section de séparation de manière à produire au moins un effluent eau et un effluent acétal, b) une étape d'estérification comprenant une section de réaction-séparation alimentée par l'effluent acétal issu de l'étape a) et comprenant au moins une section de séparation traitant par distillation les effluents de ladite section de réaction-séparation et produisant au moins un effluent eau, un effluent carbonyle, un effluent acide carboxylique concentré et un résidu diester de diol, ladite section de réaction-séparation étant également alimentée par une charge acide carboxylique comprenant au moins ledit effluent acide carboxylique concentré, c) une étape de pyrolyse dudit résidu diester de diol issu de l'étape b) comprenant un réacteur de pyrolyse alimenté par ledit résidu diester de diol, ladite étape c) comprenant également au moins une section de séparation de manière à produire un effluent dioléfines. The invention relates to a method for producing diolefins from a dilute diol filler, that is to say containing from 1 to 30% by weight of diol, comprising at least the following steps: a) an acetalization step , comprising a reaction-separation section fed by said diluted diol charge and a carbonyl charge comprising at least the carbonyl effluent from the esterification step b), and also comprising at least one separation section so as to produce at least one effluent water and one acetal effluent, b) an esterification step comprising a reaction-separation section fed by the acetal ...

Method for preparing a solid material for storing ozone, the material and the uses thereof

The present invention relates to a method and a unit for preparing a solid material for storing ozone, said method comprising contacting carbohydrates and/or derivatives of carbohydrates in solid form with a gas comprising ozone, by means of which a solid material for storing ozone is obtained. The present invention also relates to the material thus prepared and to the uses thereof.

Process for esterification of a diol using a reactive distillation

The invention relates to a conversion process fed with a diol feedstock comprising at least 90% by weight of diol and a carboxylic acid feedstock comprising at least 80% by weight of carboxylic acid, said process comprising at least: - an esterification step, fed with at least said diol feedstock and at least said carboxylic acid feedstock, the feed flow rates being adjusted such that the carboxylic acid/diol molar ration at the entry of said esterification step is between 2 and 6, said esterification step comprising at least one reactive distillation column operated at a temperature of between 40 and 280°C, at a pressure of between 0.01 and 0.5 MPa, with a molar reflux ratio of between 0.5 and 10 and a molar reboil ratio of between 0.5 and 10, consisting of a mixed reaction/separation zone located between two separation zones, each of said separation zones having an effectiveness of at least two theoretical stages, said mixed zone comprising a heterogeneous acid catalyst, said esterification step producing at least one distillate comprising water and a diol diester residue; - a step of removing the water fed with said distillate comprising water and producing at least one water effluent.

DEMAND-CONTAINABLE TABLE OR KITCHEN UTENSIL AND MANUFACTURING METHOD THEREOF

Cet ustensile est composé d'une partie préhensible P, d'une partie terminale T venant en contact avec les aliments et d'une partie intermédiaire D comprenant une âme métallique 2 déformable plastiquement. Selon l'invention, sa partie préhensible P comprend une armature 3, en matière plastique rigide surmoulée sur l'une des extrémités de l'âme métallique 2 et en plusieurs zones de la dite âme métallique, en formant des plots d'ancrage 10, et sur cette armature est surmoulée une couche 15 de matière plastique viscoélastique, qui enveloppe aussi la partie intermédiaire D et les plots d'ancrage 10 et forme la partie terminale 15d. Avec cette structure, l'âme est parfaitement positionnée et les déformations plastiques de la partie intermédiaire D sont sans conséquence sur la cohésion de la matière viscoélastique avec l'âme métallique 2. This utensil is composed of a gripping portion P, a terminal portion T coming into contact with food and an intermediate portion D comprising a metal core 2 plastically deformable. According to the invention, its grippable part P comprises a reinforcement 3 made of rigid plastic material overmolded on one end of the metal core 2 and in several zones of said metal core, forming anchoring studs 10, and on this reinforcement is overmolded a layer 15 of viscoelastic plastic material, which also envelops the intermediate portion D and the anchoring studs 10 and forms the end portion 15d. With this structure, the core is perfectly positioned and the plastic deformations of the intermediate portion D have no effect on the cohesion of the viscoelastic material with the metal core 2.

esterification process of a diol using a reactive distillation

a presente invenção refere-se a um processo de conversão alimentado por uma carga de diol compreendendo pelo menos 90% em peso de diol e uma carga de ácido carboxílico compreendendo pelo menos 80% em peso de ácido carboxílico, o referido processo compreendendo pelo menos: - uma etapa de esterificação, alimentada por pelo menos a referida carga de diol e pelo menos a referida carga de ácido carboxílico, as referidas vazões de alimentação sendo ajustadas, de forma tal que a relação molar de ácido carboxílico / diol na entrada da referida etapa de esterificação esteja compreendida entre 2 e 6, a referida etapa de esterificação compreendendo pelo menos uma coluna de destilação reativa operada a uma temperatura compreendida entre 40 e 280ºc, a uma pressão compreendida entre 0,01 e 0,5 mpa, com uma taxa de refluxo molar compreendida entre 0,5 e 10 e uma taxa de refervura molar compreendida entre 0,5 e 10, constituída por uma zona mista de reação / separação situada entre duas zonas de separação, cada uma das referidas zonas de separação tendo uma eficácia de pelo menos dois estágios teóricos, a referida zona mista compreendendo um catalisador heterogêneo ácido, a referida etapa de esterificação produzindo pelo menos um destilado compreendido por água e um resíduo de diéster de diol; - uma etapa de eliminação da água alimentada pelo referido destilado compreendendo a água e produzindo pelo menos um efluente de água. The present invention relates to a conversion process fed by a diol filler comprising at least 90 wt% diol and a carboxylic acid filler comprising at least 80 wt% carboxylic acid, said process comprising at least: - an esterification step, fed by at least said diol charge and at least said carboxylic acid charge, said feed rates being adjusted such that the carboxylic acid / diol molar ratio at the entrance of said step 2 to 6, said esterification step comprising at least one reactive distillation column operated at a temperature of 40 to 280 ° C, at a pressure ...

Apparatus for raising consumption level of food contained in container, has intermediate barrel connecting base to receptacle whose adjustable height is used to determine value of raising of consumption level of food contained in container

The apparatus has a base (A) provided with a non-skid coating (5). A receptacle (B) is provided with a concave cavity that is faced upwards to receive and position a food container selected between a small dish and a plate. The receptacle covers a reception zone of the container by the non-skid coating. An intermediate barrel (C) connects the base to the receptacle whose adjustable height is used to determine a value of raising of a consumption level of food contained in the container. Assembly of two identical elements is carried out by plastic molding.

PROCESS FOR PRODUCING 1,3-BUTADIENE FROM 1,4-BUTANEDIOL

L'invention concerne un procédé de production de 1,3-butadiène à partir d'une charge 1,4-butanediol, ledit procédé comprenant au moins : - une étape d'estérification du 1,4-butanediol, - une étape de pyrolyse du diester de 1,4-butanediol, produisant du butadiène. The invention relates to a process for the production of 1,3-butadiene from 1,4-butanediol feedstock, said process comprising at least: a step of esterification of 1,4-butanediol, a pyrolysis step 1,4-butanediol diester, producing butadiene.

COVERED WITH ERGONOMIC SLEEVE

Behälter für den transport und die aufbewahrung von lebensmitteln bei verzehrtemperatur

Procédé de préparation d’un matériau solide de stockage de l’ozone, ledit matériau et ses utilisations

La présente invention concerne un procédé et une installation pour la préparation d’un matériau solide de stockage de l’ozone, ce procédé comprenant la mise en contact de cyclodextrines et/ou de dérivés de cyclodextrines se présentant sous forme solide avec un gaz comprenant de l’ozone moyennant quoi un matériau solide de stockage de l’ozone est obtenu. La présente invention concerne également le matériau ainsi préparé et ses utilisations.

Procédé de préparation d'un matériau solide de stockage de l'ozone, ledit matériau et ses utilisations

La présente invention concerne un procédé et une installation pour la préparation d'un matériau solide de stockage de l'ozone, ce procédé comprenant la mise en contact de cyclodextrines et/ou de dérivés de cyclodextrines se présentant sous forme solide avec un gaz comprenant de l'ozone moyennant quoi un matériau solide de stockage de l'ozone est obtenu. La présente invention concerne également le matériau ainsi préparé et ses utilisations.

Procédé de préparation d'un matériau solide de stockage de l'ozone, ledit matériau et ses utilisations

La présente invention concerne un procédé et une installation pour la préparation d'un matériau solide de stockage de l'ozone, ce procédé comprenant la mise en contact de cyclodextrines et/ou de dérivés de cyclodextrines se présentant sous forme solide avec un gaz comprenant de l'ozone moyennant quoi un matériau solide de stockage de l'ozone est obtenu. La présente invention concerne également le matériau ainsi préparé et ses utilisations.

Procédé de préparation d'un matériau solide de stockage de l'ozone à base de glucides, ledit matériau et ses utilisations

Carafe en deux parties

L’invention concerne un carafe (1) réalisée dans un matériau à propriété de déformation élastique, en forme de bouteille présentant successivement un col (11), une épaule (12), un corps (13) et un fond (14), constituée d’une première partie (2) et d’une deuxième partie (3) reliées l’une à l’autre de manière amovible et étanche, avec : - la première partie (2) comprenant au moins le col (11) et l’épaule (12) de la carafe (1), et - la deuxième partie comprenant au moins une partie du corps (13) et le fond (14) de la carafe (1). Selon l’invention, la première partie (2) et la deuxième partie (3) sont reliées l’une à l’autre par l’intermédiaire d’une collerette (21) ménagée sur l’une des parties et destinée à s’emboîter dans l’autre partie, et en ce que l’une des parties comprend une protubérance annulaire périphérique au niveau de l’emboîtement de sorte à forcer l’emboîtement et garantir l’étanchéité et la liaison entre les première et deuxième parties. Figure pour l’abrégé : Fig. 1

Dispositif pour surelever le plan de consommation des aliments contenus dans un recipient