Boliden Mineral Ab

Boliden Contech A. B.

Per-Olov Lindgren

Karin Paulsson

Karl-Erik Johansson

Joakim Pettersson

Anna Svedberg

Kjell-ANGke Johansson

Capsule for the containment of spent nuclear fuel and a method of

The invention relates to shot pellets for hunting in wet marshlands or corresponding wet areas. The shot has an inner core of copper or copper alloy and an outer layer of silver or silver alloy. No heavy metal will leach from the shot into the environmental surroundings, and the shot has no toxic effect on birds, even should they ingest a considerable quantity of shot. The shot is produced by granulating copper or copper alloy electrochemically to obtain shot cores, whereafter at least one layer is applied thereto. The outer layer always consists of silver or a silver alloy.

Shot pellets for game hunting on wet marshlands and method of

A method for dealing with mercury-containing waste including button-type batteries, wherein the waste is heated in a furnace while being agitated and in the presence of elementary selenium vapour in an amount sufficient to form mercury-selenide from essentially all the mercury contained by the waste. The waste is heated to a temperature at which mercury and selenium will be present in a gaseous state and at which solid mercury-selenide will not form, and a partial pressure of oxygen is maintained at a sufficiently low level to avoid oxidation of the selenium. The thus treated mercury-freed waste is extracted from the resultant process gas and from any other solid material that may be present and is either dumped or worked-up metallurgically. After the waste has been extracted from the process gas, the process gas is cooled to extract therefrom solid, stable mercury-selenide dust suitable for dumping, whereafter the gas is passed through a filter with the intention of extracting any gaseous mercury that may remain in the gas, whereafter the thus cleansed gas is released into the atmosphere. The invention also relates to a plant for treating mercury-containing waste.

Method for dealing with mercury-containing waste

Growing community of inventors

Fauske, Norway

Per-Olov Lindgren