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Browsing Archives collection by Author "Savage, WHD"

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An alternative approach to mass balances in coal washing plant performance tests

Author: Savage, WHD Date: 1977 In many tests the separating bath is fed with coal covering a wide range of sizes. This note is based on a study of data contained in FRI report No. 44 of 1977. Read more
Analysis of product samples taken by the Fuel Research Institute during 1972

Author: Savage, WHD Date: 1972 In Bulletin No 76, which gave average data for 1971, it was mentioned that Enyati and Vaalbank collieries ceased production during that year. Read more
Anthracite grading

Author: Savage, WHD Date: 1965 During the past eighteen months discussions have been held with the Anthracite Producers Association on the desirability of altering and introducing a second and possibly a third grade. Read more
The classification of South African coals according to international classification of hard coals by type

Author: Savage, W.H.D ; Savage, WHD Date: 1957 The "International Classification of Hard coals by type", published by the United Nations in 1956, consists of primary classification by volatile matter content up to 33% volatile matter (dry ash free) and by calorific value (moist ash free) ... Read more
Comparison of samples taken by the suction drill sampler and by shovel from truck tops

Author: Savage, WHD Date: 1974 At various times complaints have been received from the Transvaal Coal Owners Association and collieries about low calorific values obtained by the Institute on samples taken for the S.A.R locomotive contract. Read more
The effect of changing the temperatures in the volatile matter determination from 925C to 900C

Author: Savage, WHD Date: 1969 No corresponding determination were made on the same samples at the two temperatures, so that no valid comparison can be made. Read more
The effect of variations in the moisture content on the float and sink analysis of large coal

Author: Van Eck, B ; Savage, WHD Date: 1951 In the present investigation samples of approximately cobble sized coal from five typical collieries in the major coal fields were taken. Read more
The effects of cleaning on the analsis composition of the ash and ash fusion point of two coals from collieries in the South-Eastern portion of Witbank coalfield

Author: Savage, WHD Date: 1950 The work incorporated in this report was undertaken because of the introduction of new grading regulations governing the export of col from the Union, in which minimum analytical requirements for the several grades of coal were laid down. Read more
Export grading control

Author: Savage, WHD Date: 1965 The intention to specify at least two grades of anthracite will probably result in more samples being received which are outside the specification of the grade applying to the coal. Read more
Grading certificates

Author: Savage, WHD Date: 1965 During the latter portion of last year, General Mining acquired the coal rights of Vrisgewaagd Antracite, Gluck Auf Anthracite, and the dormant Riversdale Anthracite. Read more
The phosphorous content of Waterberg coal (ISCOR - SASOL - F.R.I. steering committee)

Author: Savage, WHD Date: 1961 In the progress report for the period October 1960 to February 1961 (FRI Technical memorandum No. 2 of 1961) certain phosphorus contents of waterberg coal samples were reported. Read more
The phosphorus content of Waterberg coal

Author: Savage, WHD Date: 1961 In the progress report for the period October 1960 to February 1961 (FRI Technical memo 2/1961) certain phosphorus contents of Waterberg coal samples were reported. It was decided that further investigations be undertaken, with particular ... Read more
Remarks on dyke effect on a coal seam

Author: Savage, WHD Date: 1965 In the above paper analyses of samples taken in the Wilsontown main seam. Riddochhill colliery at sixty-nine five foot intervals from a large vertical dyke are given. Read more
Report on calorific values

Author: Savage, WHD Date: 1954 In this report the position regarding calorific values is investigated. Read more
Survey report No. 322 a comparison of in situ reseves of raw coal suitable for power station use and of washed coal for the general market on the farm Boschmansfontein 12 IS, Witbank, Transvaal

Author: Savage, WHD Date: 1965 In Report No. 7 of 1965, in situ reserves of coal suitable for use a power station on site were calculated for the farm Boschmansfontein 12IS, the Witbank district of Transvaal. Read more
Survey report No. 350 coking oil investigation ultimate analyses of composite samples from boreholes drilled for the geological survey in Witbank Coalfield in 1952 and 1956

Author: Savage, WHD Date: 1969 Four reports, covering boreholes 1 to 54, 55 to 156 to 215, and 218 to 315, were issued on official drilling of the No. 5 seam of the Witbank coalfield. Read more
Survey report No. 354 on a 9 boreholes drilled on the farm Springbokdraai 277 IS in the Standerton district

Author: Savage, WHD ; Briel, JM Date: 1969 During the years 1956 and 1957, Messrs. Union Corporation Ltd., drilled 9 boreholes on the farm Springbokdraai 277 I.S situated approximately 10 miles south-east Leslie, Transvaal. Read more
Survey report No. 96 Report on 12 boreholes drilled by Messrs. Sebato Investments, Ltd., on the farm Elandsfontein 8, district Witbank, in the years 1945 - 1946

Author: Savage, WHD Date: 1949 A series of 12 boreholes was drilled by Messrs.Sebato Investments Ltd. on the north-western portion of Elandsfontein 8 district in the years 1945 and 1946. Read more
Variation of ash and SO3 in ash with conditions of ashing

Author: Savage, WHD ; Kunstmann, FH ; Harris, JF Date: 1968 Some of the possible variables in ashing were considered in determining the effects pf (A) depth of layer of coal and (B) SO2 passing over ashes and different rates of heating. Read more
Weathering tests on coking coals

Author: Savage, WHD Date: 1951 The object of the investigation was to study the effect of weathering by exposure to the open air on the coking and chemical properties of the coal. Read more

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