Patent GB-362934-A (GB)
Title: A process for the manufacture of coal products
IPC: C08L95/00
Filed: 1930-09-05
Abstract: Coal products of improved temperature susceptibility factor varying in consistency from a viscous liquid to a solid, and useful for coating metal, stone, concrete, brick, and other surfaces, for impregnating wood &c., as cold patches in road construction, as filling and sealing materials, for renewing or building up brake or other surfaces, for preparing expansion joints, for roofs or other water-proofing purposes, in moulding compositions, tree surgery, cements, binders, putties, and printers' inks, are obtained by thickening the solutions of coal as coal obtained according to Specification 268,372, [Class 91, Oils &c.], by adding one or more of the following substances in such proportion as to cause only the production of a suspensoid but not deposition of the coal particles: benzene, toluene, solvent naphtha, gasolene, turpentine, linseed, wood, or other vegetable oil, paraffin oil or wax, lubricating oil, petroleum still residue, natural or blown asphalt.  1 to 5 per cent of high-boiling or 20 to 30 per cent of low-boiling addition is suitable.  There may be added to the thickened products: (1) corrosive inhibitors, e.g. chromates, pyridine or other nitrogen base; (2) fillers such as bentonite, sand; (3) fibrous materials, e.g. mineral wool, asbestos, cellulose fibres; (4) pigments, e.g. aluminium bronze, venetian red, clay; (5) sulphur or sulphur of other compounds having a chemical or physical action.  In the preparation of the solutions of coal as coal the sulphur-treated oils and tars described in Specification 358,998 may be used.  In examples: (1) 100 lb. of coal solution of M.P. 121 DEG  C. and 30 lb. of benzene are agitated together in an autoclave while the temperature is raised to about 200 DEG  C.; (2) 100 lb. of coal solution M.P. 101 DEG  C. is crushed, allowed to soak in 10 lb. of benzene, then kneaded, and an additional 10 lb. of benzene added with further kneading; the product may be passed through a homogenizer or colloid mill or extrusive apparatus; (3) 95 lb. of solution containing 15 per cent of coal is melted and 5 lb. of linseed oil is stirred in.ALSO:Coal products of improved temperature susceptibility factor varying in consistency from a viscous liquid to a solid and useful for coating metal, stone, concrete, brick and other surfaces, for impregnating wood &c., as cold patches in road construction, as filling and sealing materials for renewing or building up brake or other surfaces, for preparing expansion joints, for roofs or other water-proofing purposes, in moulding compositions, tree surgery, cements, binders, putties, and printers' inks, are obtained by thickening the solutions of coal as coal obtained according to Specification 268,372, [Class 91, Oils &c.], by adding one or more of the following substances in such proportion as to cause only the production of a suspensoid but not deposition of the coal particles:-benzene, toluene, solvent naphtha, gasolene, turpentine, linseed oil, wood oil, other vegetable oil, paraffin oil or wax, lubricating oil, petroleum still residue, natural or blown asphalt.  1-5 per cent of high boiling or 20-30 per cent of low-boiling addition is suitable.  There may be added to the thickened products:-(1) corrosion inhibitors, e.g. chromates, pyridine or other nitrogen base; (2) fillers such as bentonite, sand; (3) fibrous materials, e.g. mineral wool, asbestos, cellulose fibres; (4) pigments, e.g. aluminium bronze, venetian red, clay; (5) sulphur or sulphur or other compounds having a chemical or physical action. In the preparation of the solutions of coal as coal the sulphur-treated oils and tars described in Specification 358,998, [Group III], may be used.  In examples (1) 100 lb. of coal solution of M.P. 121 DEG  C. and 30 lb. of benzene are agitated together in an autoclave while the temperature is raised to about 200 DEG  C.  (2) 100 lb. of coal solution M.P. 101 DEG  C. is crushed, allowed to soak in 10 lb. of benzene, then kneaded, and an additional 10 lb. of benzene added with further kneading; the product may be passed through a homogenizer or colloid or extrusion apparatus; (3) 95 lb. of solution containing 15 per cent of coal is melted, and 5 lb. of linseed oil is stirred in.