The Coking of Coal At Low Temperatures With Special Reference to the Properties
The Coking of Coal At Low Temperatures With Special Reference to the Properties
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In our eReader you can find the full English version of the book. Read The Coking of Coal At Low Temperatures With Special Reference to the Properties Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book The Coking of Coal At Low Temperatures With Special Reference to the Properties
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After this treatment had been repeated until no further re- duction in volume of the residue took place, this caustic solution was drawn off and acidified with sulphuric acid and the whole extracted with ether. The ether extract, when evaporated down, yielded crude phenol and its homologues.
The amines were removed from the oily residue after the phenol extraction by shaking it with dilute sulphuric acid, of sp. Gr. 1. 15, with warming. The solution was separated as before, neutralized with cau...stic soda, and the bases extracted with ether.
The method for separating paraffins and benzenes is based upon the familiar principle that the hydrocarbons of the paraffin series are practically inert toward sulphuric acid, while those of the aromatic series react with comparative ease, forming sulphonic acids, in which sulpho groups replace hydrogen of the benzene ring. These acids are very soluble in water and are therefore easily separated from the in- soluble oily paraffin residues.
The process used was that adopted by the Forest Products Labor- atory.
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To quickly assess the difficulty of the text, read a short excerpt:
After this treatment had been repeated until no further re- duction in volume of the residue took place, this caustic solution was drawn off and acidified with sulphuric acid and the whole extracted with ether. The ether extract, when evaporated down, yielded crude phenol and its homologues.
The amines were removed from the oily residue after the phenol extraction by shaking it with dilute sulphuric acid, of sp. Gr. 1. 15, with warming. The solution was separated as before, neutralized with cau...stic soda, and the bases extracted with ether.
The method for separating paraffins and benzenes is based upon the familiar principle that the hydrocarbons of the paraffin series are practically inert toward sulphuric acid, while those of the aromatic series react with comparative ease, forming sulphonic acids, in which sulpho groups replace hydrogen of the benzene ring. These acids are very soluble in water and are therefore easily separated from the in- soluble oily paraffin residues.
The process used was that adopted by the Forest Products Labor- atory.
What to read after The Coking of Coal At Low Temperatures With Special Reference to the Properties?
You can find similar books in the "Read Also" column, or choose other free books by H L Hubert Leonard Olin to read onlineMoreLess
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