Chemical News and Journal of Industrial Science, Tomy 133-134Chemical news office., 1927 |
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Strona 3
... coal per annum , about 20 % of the world's production , and sells 62,500,000 tons- abroad and to steamships . As showing the difficulty of maintaining the export , in 1921 all Europe together , our best customer for coal , was using ...
... coal per annum , about 20 % of the world's production , and sells 62,500,000 tons- abroad and to steamships . As showing the difficulty of maintaining the export , in 1921 all Europe together , our best customer for coal , was using ...
Strona 9
... coal industry has been in the fore- front of almost everyone's thoughts for some months , particularly since the lock- out commenced nearly two months ago . With the political aspects of the present dis- pute we are not concerned , but ...
... coal industry has been in the fore- front of almost everyone's thoughts for some months , particularly since the lock- out commenced nearly two months ago . With the political aspects of the present dis- pute we are not concerned , but ...
Strona
... coal from the earth , but also in converting it into valuable chemical products . The distilla- tion of brown coal and the working up of the fractions has received close attention . Increased monetary returns have succeeded the adoption ...
... coal from the earth , but also in converting it into valuable chemical products . The distilla- tion of brown coal and the working up of the fractions has received close attention . Increased monetary returns have succeeded the adoption ...
Strona 26
... coal crisis , many steam users have turned their thoughts to oil firing , and in the chemical industries generally ... coal . The whole matter is one of simple calculation , with , say , oil at 18,000 B.Th. U. per lb. , and 75 per cent ...
... coal crisis , many steam users have turned their thoughts to oil firing , and in the chemical industries generally ... coal . The whole matter is one of simple calculation , with , say , oil at 18,000 B.Th. U. per lb. , and 75 per cent ...
Strona 55
... coal - cutters , and other appliances is ideal as regards safety and ventilation , but probably at least 40-50 per cent . of the total output of the compressors is lost , because of leaky rigid pipe joints . Thus the pressure contained ...
... coal - cutters , and other appliances is ideal as regards safety and ventilation , but probably at least 40-50 per cent . of the total output of the compressors is lost , because of leaky rigid pipe joints . Thus the pressure contained ...
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