摘要:
A desiccant composition containing a deliquescent salt and a modified starch containing from about 5 to about 95 percent of the deliquescent salt and from about 5 to about 95 percent of the modified starch.
摘要:
The present invention relates to a method of impregnating paper with a suspension of a molecular sieve in waterglass, such as soda waterglass or potassium waterglass, wherein the impregnated paper can be used as a dehumidifying element, and wherein the method comprises the steps of a) providing a piece of paper, such as facing paper and/or fluted paper; b) immersing the paper into a highly concentrated waterglass solution in which a molecular sieve has been suspended, at a temperature in the range of 45-95null C., wherein said suspension of highly concentrated waterglass/molecular sieve has a viscosity of at least 350 mPa.s at a temperature of 45null C.; and c) cooling the immersed paper with air at a temperature of at most 35null C. and preferably at most 25null C.
摘要:
The invention relates to a process for preparing a mercury collecting solid mass containing a carrier and copper, at least partly as copper sulfide, comprising the following steps of:(a) incorporating with the carrier at least one copper compound other than a sulfide,(b) optionally roasting said carrier,(c) incorporating therewith at least one organic polysulfide, and(d) thermally treating the resultant mass, in non-oxidizing atmosphere, under gas scavenging.The invention also concerns a regenerating process for a mercury recovery mass, containing a carrier, and copper, at least partly as copper sulfide, comprising incorporating with said mass, after a decrease of its mercury recovery efficiency and after removal of at least a part of its mercury content, an organic polysulfide, and finally subjecting it to a thermal treatment, in non-oxidizing atmosphere, under gas scavenging.
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:
The present invention relates to a process for the substantial removal of iodine and/or an organic iodine compound which has a low number of carbon atoms from a gas and/or vapour, wherein a gas or vapour containing the iodine and/or iodine compound is passed through a layer of porous particles of a sorption agent which particles comprise amorphous silicic acid and are impregnated with a metal salt, and which have only a low water adsorption and are resistant to hot steam and acid vapours.