The plates withdraw oil from the secondary mixture.

The primary mixture is than forwarded to a secondary mixing chamber (102).

The secondary mixing chamber extends to a tertiary mixing chamber (103).

The passive harmonic rejection mixer has an input connected to several sub-mixer stages, and the sub-mixer stages are connected to a summing module for generating the output.

Simultaneously secondary fuel injectors (104) inject fuel into an annular secondary fuel and air mixing zone (94) which surrounds the first mixing zone (64).

The two mixes, which have a volume ratio such that the primary mix is preponderant, are mixed under a vacuum so that the secondary mix is mixed partly together with the primary mix, forming inclusions.

The primary mix is prepared with granulated stone material having at least one characteristic (such as colour and/ or particle size) different from that that of the granulated material used in the secondary mix.

Through an area (12b) of the perforated electrode, one or more second supply lines (22) feeds a secondary mixture which is richer in the first reaction gas than a primary mixture supplied by a first supply line (21).

In order to manufacture articles in the form of blocks of conglomerate stone material, two mixes, i.e. a primary mix and a secondary mix, are prepared in two separate mixers operating under a vacuum.

The plates withdraw oil from the secondary mixture.

The primary mixture is than forwarded to a secondary mixing chamber (102).

The secondary mixing chamber extends to a tertiary mixing chamber (103).

A selected mixture of the primary and the secondary portions are cladded to provide a secondary cladding.

The present invention relates to a cathode mixture for a lithium secondary battery and a lithium secondary battery using the same.

The passive harmonic rejection mixer has an input connected to several sub-mixer stages, and the sub-mixer stages are connected to a summing module for generating the output.