Packaging bag (100) comprising a pouch (1) for storing at least one substance, said pouch (1) being provided with an outlet (2) for extracting the substance and with inner layers (6a, 6b) partly attached to the pouch (1) and partly detached from said pouch (1) so to leave free strips (8a, 8b) at the outlet (2), said free strips (8a, 8b) being joinable together to obtain a sealed membrane (11) for closing a tillable aseptic housing (9) storing the substance, a spout (13) being located off said aseptic housing (9) and fixed to the pouch (1).

A process for the conversion of propane and/or butane into aromatics which comprises first reacting a propane and/or butane feed in the presence of an aromatization catalyst under reaction conditions which maximize the conversion of propane and/or butane into first stage aromatic reaction products, separating ethane produced in the first stage reaction from the first stage aromatic reaction products, reacting ethane in the presence of an aromatization catalyst under reaction conditions which maximize the conversion of ethane into second stage aromatic reaction products, and optionally separating ethane from the second stage aromatic reaction products.

A process for the conversion of mixed lower alkanes into aromatics which comprises first reacting a mixed lower alkane feed comprising at least propane and ethane in the presence of an aromatization catalyst under reaction conditions which maximize the conversion of propane into first stage aromatic reaction products, separating ethane from the first stage aromatic reaction products, reacting ethane in the presence of an aromatization catalyst under reaction conditions which maximize the conversion of ethane into second stage aromatic reaction products, and optionally separating ethane from the second stage aromatic reaction products.

The present invention provides a process for producing aromatic hydrocarbons which comprises: (a) alternately contacting a lower alkane feed with an aromatization catalyst under aromatization reaction conditions in a reactor for a short period of time, preferably 30 minutes or less, to produce aromatic reaction products and then contacting the aromatization catalyst with a hydrogen-containing gas at elevated temperature for a short period of time, preferably 10 minutes or less, (b) repeating the cycle of step (a) at least one time, (c) regenerating the aromatization catalyst by contacting it with an oxygen-containing gas at elevated temperature and (d) repeating steps (a) through (c) at least one time.

Bistable magnetic actuator (5) for a medium voltage circuit breaker arrangement, comprising at least one electrical coil (7) for switching a ferromagnetic armature (6) between a first limit position and a second limit position effected by an electromagnetic field, at least one permanent magnet (8) for holding the armature (6) in one of the two limit positions corresponding to an open and a closed electrical switching position respectively of the mechanically connected circuit breaker, wherein the armature (6) comprises an upper plunger (9) resting on a ferromagnetic core element (10) of the one electrical coil (7) for static holding the armature (6) in the first limit position, which is attached to a plunger rod (12) extending through the ferromagnetic core element (10) and through the permanent magnet (8) for mechanically coupling the actuator (5) to the circuit breaker arrangement, wherein the armature (6) comprises a lower plunger (13) unlockable attached on the opposite side of the plunger rod (12) in an axial distance from the core element (10) and movable on the core element (10) in order to shift the armature (6) to the second limit position by reducing the magnetic flux in the upper plunger (9).

The invention relates to a circuit-breaker for switching medium-voltage to high-voltage circuits, comprising a pole part (1) having a cup-shaped housing (4) made of insulating material for accommodating an interrupter insert (3) operated by a drive rod (12), wherein the cup-shaped housing (4) is divided in an upper housing part (5) in which the interrupter insert (3) is arranged and a lower housing part (6) for accommodating a magnetic actuator (2), wherein the drive rod (12) of the interrupter insert (3) is coaxially arranged to an armature (13) of the magnetic actuator (2).

A method (10) for the processing of manganese ore fines, the method characterised by the steps of: (i) Preparation of a manganese ore fines feed (12) to produce at least two fractions thereof (14, 16); (ii) Passing the larger of the two fractions (16) to a dense medium cyclone circuit (18), incorporating a densifier (20) that is fed from cyclone overflow (22); (iii) Passing the smaller of the two fractions (14) to a density control circuit (24) to remove a sub-fraction (26) below about minus 10 µm and provide a slurry at relatively constant density for subsequent processing steps; (iv) Passing the slurry from step (iii) to a wet high intensity magnetic separation ("WHIMS") circuit (28); (v) Passing the product of the WHIMS circuit (28) to a dewatering step (30); and (vi) Combining the product from the dewatering step (30) and the dense medium cyclone circuit (18) as a final product (32).

The invention relates to a cross-linkable foamable composition having a low content of monomer isocyanates, comprising a) 10 to 90% by weight of a prepolymer made of polyester dioles converted using an excess of diisocyanates, b) 90 to 10% by weight of a component based on polyether polyols comprising either at least one Si(OR)3 group or at least one NCO group, c) 0.1 to 30% by weight of additive, d) and at least one propellant, wherein the polyester diole and the polyether diole comprise a molar mass (MN) of less than 5000 g/mol, and the mixture of a and b has a content of monomer diisocyanates of less than 1% by weight.

3-Amino-2-nitro-substituted benzoyl derivatives of the general formula (I) are described. In this formula (I), X, R1, R2, R3, R4, R5, R6, R7 and R8 stand for radicals such as hydrogen, organic radicals such as alkyl, and other radicals such as halogen.

The invention relates to a through-passage roofing tile (1) comprising at least one lower part (4) that has an inlet opening (14) and a sealing surface (31). A connecting part (7) is arranged below the lower part (4), said connecting part likewise having a sealing surface (22) which lies below the sealing surface (31) of the lower part (4). Both sealing surfaces (22; 31) face each other. The lower part (4) and the connecting part (7) are interconnected by fixing means (19, 20). A sarking membrane (44) lies at least partly between both sealing surfaces (22; 31).