HENRY DEACON 18S 



either before or during the decomposition of 

 the chlorides under treatment, when such 

 chlorides and the sulphates resulting there- 

 from are kept separate and distinct from the 

 solid materials used to form or promote the 

 formation of anhydrous sulphuric acid. 



No. 2,667. 9^h October, 1871. This 

 process is to manufacture the alkaline 

 sulphates by causing heated sulphuric or 

 sulphurous acids, mixed with oxygen and with 

 vapour of water, to pass in succeeding 

 alternations in contact with certain chemical 

 substances called catalytic substances, and in 

 contact with alkaline chlorides, which are 

 kept separate from the catalytic substances. 



No. 3,309. 7th Nov., 1872. Bleaching 

 liquor is usually formed by causing a mixture 

 of caustic lime and water to absorb chlorine ; 

 this patent is to use certain kinds of carbonate 

 of lime to replace wholly, or in part, the 

 caustic lime usually employed. 



No. 505. nth Feb., 1873. This is to 

 accelerate the " Deacon " process by mixing 

 the active catalytic substance, sulphate of 

 copper, with other substances such as sulphate 

 of soda which when used alone are inactive 

 and inert. 



No. 3,092. 2Oth Sept., 1873. This 



