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Browsing by Author "La Grange, CC"

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Contribution to the assessment of coke strength comparative results obtained from micum and B.S. strength and abrasion tests

Author: La Grange, CC ; Beukes, PJA Date: 1963 Formerly metallurgical coke testing in South Africa was virtually limited to the B.S shatter and abrasion tests. Due to the similarity of the two ASTM tests to the British tests there was no point of introducing the ASTM tests and they will ... Read more
A contribution to the study of the production of carbonaceous zeolites from bituminous coal

Author: La Grange, CC Date: 1944 This report described work done at the Institute to ascertain whether South African coals could be used in the preparation of carbonaceous zeolites. The object of the present investigation was to determine whether South African coal would ... Read more
Effects of controlled crushing and screening on the analysis and petrographic composition of Blesbok coal

Author: Moodie, B ; La Grange, CC Date: 1958 By applying the Burstlein principle of controlled crushing and screening to coal from Blesbok Collier it is possible to obtain a product of lower ash and higher swelling number but it is probably preferable to effect these improvements in the ... Read more
Electrical propulsion of road vehicles - Survey of available literature

Author: La Grange, JH ; La Grange, CC Date: 1971 The electrically powered car, on the other hand, not only causes no air pollution, but is also silent and requires little attention and maintenance. In addition, electric power distributors throughout the world should welcome the use of off ... Read more
Full scale coking investigation of Natal coal possibly required by AMCOR for coking

Author: La Grange, CC Date: 1962 The investigation undertaken was mainly concerned with the latter possibility. Read more
Further coking investigations to determine the effect of predying the charge

Author: La Grange, CC Date: 1965 In the previous report the advantages and disadvantages of predying and preheating coke oven charges were briefly dealt with and some literature references on the subject were cited. The present report covers further investigations along ... Read more
Further full scale coking investigation of Hlobane and Northfield coals on behalf of AMCOR and the Natal Navigation Collieries and Estate Company Limited

Author: La Grange, CC Date: 1963 The first series of tests in this programme was carried out in the letter half of 1962, and the results were communicated in FRI Technical Memorandum No. 21 of 1962. Read more
Investigation of samples of selected duff coals for Rand Mines LTD., aimed at producing low ash products

Author: La Grange, CC Date: 1965 The purpose of this investigation was in the firs instance to determine what yields of low ash products could be expected from the duffs, such products to be suitable. Read more
Number 5 seam coal from the ventilation shaft at Springbok Colliery

Author: La Grange, CC Date: 1957 Subsequent to the issue of this Institutes Technical Memorandum No. 10 of 1955 the results of additional investigations carried out at the Institute on No. Seam coal taken in the ventilation shaft, about 4500ft north- north-east of Springbok ... Read more
Oil bearing sandstone obtained from boreholes No. 1 on Kalabasvlakte 3749 Newcastle district

Author: Davis, PC ; La Grange, CC ; Coetzee, SD Date: 1950 During September 1950, the Institute was notified that portions of the core from a borehole drilled on the farm Kalabasvlakte 3749 were apparently impregnated with oil. Samples of the core were obtained and examined and it was conducted that ... Read more
Report on visits to Lourenco Marques in connection with the spontaneous heating of uitkyk export coal in the S.S. Amstelstad

Author: La Grange, CC ; Petrick, AJ Date: 1948 An officer of the Institute was accordingly sent to Lourenco Marques to obtain first hand information on excessive heating matter. Read more
Research work by the F.R.I. on Witbank Duff Coals and concerning mainly their upgrading and possible utilization for coking purpose

Author: La Grange, CC Date: 1968 This memorandum contains tables and notes appended which represent information obtained from time to time during investigations concerned with possible production of coking coal from Witbank duffs and other products. Read more
Spontaneous heating of coal - summarized extracts from the literature

Author: La Grange, CC Date: 1950 The problem created by the spontaneous heating of coal has been receiving attention for more than 100 years and many investigators have worked on problems directly or indirectly associated with this phenomenon. Read more
Storage of coal with special reference to quality deterioration and spontaneous combustion

Author: La Grange, CC Date: 1951 This paper investigates the storage of coal with regards to specifically coal deterioration and combustion properties. Read more
Storage of coal with special reference to quality determination and spontaneous combustion

Author: La Grange, CC Date: 1951 Although the storage of coal is probably almost as old as its use and is practiced on a smaller or larger scale by all coal consumers, there are certain aspects and problems associated with coal storage, which require very careful consideration ... Read more
Washability and other characteristics of coal from the No. 5 seam coal (Run-of-mine) from nagcolliery

Author: La Grange, CC ; Wolmarans, JJ Date: 1950 According to information given by the Manager at navigation Colliery in May 1950, the mining height in the No. 5 seam is about 6 feet at the top of this consist of inferior material and is loaded into separate, specially marked tubs underground ... Read more
Washability and other characteristics of coal from the No. 5 seam Witbank colliery

Author: La Grange, CC ; Wolmarans, JJ Date: 1950 A bulk face sample (no. T124) of approximately 1 ton was taken on 12/4/1950 from the No. 5 seam, South African Witbank colliery at a point about 70 east of a point 100 south of peg 104. The seam here was about 69'' thick. Read more
Washability and other characteristics of coal from the No. 5 seam, South Witbank colliery

Author: La Grange, CC ; Wolmarans, JJ Date: 1950 This report details how coal from the No. 5 seam in the Witbank colliery was tested for washability and related characteristics. Read more

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