摘要:
The invention relates to a method for producing elemental halides, which is characterized in that during a first step, a mixture consisting of a material containing the corresponding element and of carbon or carbon-containing material is produced, and this mixture is brought into contact with a halogen, hydrogen halide or mixtures thereof, which are all gaseous under the reaction conditions, and is then heated. The supply of energy ensues via an electromagnetic alternating field.
摘要:
The present invention relates to a process for recovering copper from solutions from the recovery of iodine from industrial wastes from the production of ionic and non-ionic iodinated X-ray contrast agents by use of chelating resins suitable for removing copper from aqueous solutions. The absorbed copper is displaced by treating the resins with a 10 % hydrochloric or sulfuric acid solution.
摘要:
The present invention relates to a process for recovering copper from solutions from the recovery of iodine from industrial wastes from the production of ionic and non-ionic iodinated X-ray contrast agents by use of chelating resins suitable for removing copper from aqueous solutions. The absorbed copper is displaced by treating the resins with a 10 % hydrochloric or sulfuric acid solution.
摘要:
There ist described a method for separating iodine in solid form, from an acid mercury salt solution, which comprises subjecting said iodine-containing mercury salt solution at a pH value between 2 and 8, at an electrolysis (1) for separating the mercury, and thereafter precipitating (2) from the resulting, substantially mercuryfree solution, the iodine in the form of a salt.
摘要:
The present invention relates to a P-type high-performance thermoelectric material featuring reversible phase change, and a preparation method therefor. The thermoelectric material has a chemical composition of Cu 2 Se 1-x I x , wherein 0
摘要:
An adsorbing material comprising a porous body having larger pores of a mean pore diameter of 200 to 2000 A and smaller pores of a mean pore diameter of 40 to 200 A on the surfaces of the larger pores, said porous body being impregnated with a metal such as silver, copper, etc., or a salt thereof such as silver nitrate, etc., has excellent adsorbing performance for iodine and/or organic iodine compounds under any degree of humidity.
摘要:
An adsorbing material comprises a porous body having larger pores of a mean pore diameter of 200 to 2000 Å and smaller pores of a mean pore diameter of 40 to 200 Å on the surface of the larger pores. The porous body being impregnated with a metal such as silver or copper, or a salt thereof such as silver nitrate. This material has excellent adsorbing performance for iodine and/or organic iodine compounds under any degree of humidity. It may be made by making particles having the smaller pores and the bonding of these particles together. e.g. by sintering.
摘要:
The present invention relates to a P-type high-performance thermoelectric material featuring reversible phase change, and a preparation method therefor. The thermoelectric material has a chemical composition of Cu 2 Se 1-x I x , wherein 0