Norskhydro Asa

Turid Risdal

Stein Julsrud

Bent Erlend Vigeland

Tyke Naas

An anode for the electrolysis of aluminium made from an outer dense layer of a ceramic material on a dense core made from a composite of the ceramic material of the outer layer and an electronic conductor.

Dimensionally stable anode for the electrowinning of aluminum

A material suitable for use as the active anode surface in the electrolytic reduction of alumina to aluminium metal defined by the formula: ABCOwhere A is a divalent cation or a mixture of cations with a relative preference for octahedral coordination, B is a trivalent cation or mixture of cations with a relative preference for tetrahedral coordination, C is a trivalent cations with a relative preference for octahedral coordination or a four-valent cation with a relative preference for octahedral coordination, O is the element oxygen: When C is trivalent x=0, 0.8&#x3c;d&#x3c;1, &#x3b4;&#x3c;0.2 and x+d+d is essentially equal to 1. When C is four-valent 0.4&#x3c;x&#x3c;0.6, 0.4&#x3c;d&#x3c;0.6, &#x3b4;&#x3c;0.2 and x+d+&#x3b4; is essentially equal to 1.

Material for a dimensionally stable anode for the electrowinning of aluminum

The present invention relates to a solid multicomponent membrane for use in a reactor where the membrane comprises a mixed metal oxide having a structure represented by the formula: La Ca (Fe Ti Al ) O wherein x, y, y&prime;, w, and d each represent a number such that 0.1&lE;(y&plus;y&prime;)&lE;0.8, 0.15&lE;(x&plus;y&prime;) &lE;0.95, 0.05&lE;(x&minus;y)&lE;0.3, 0.95<w<1, and d equals a number that renders the compound charge neutral and is not less than zero and not greater than about 0.8. Furthermore, the present invention relates to a use of the membrane in a reactor for generating heat or for generating synthesis gas.

Growing community of inventors

Porsgrunn, Norway

Turid Risdal