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The findings on gallium-67 scans were compared with the findings of standard techniques (X-ray chest, lymphangiography, clinical examination, and laparotomy findings) in patients with lymphoma, mainly at presentation, but sometimes on follow-up. The objective was to ascertain the reliability of this non-invasive technique in detecting lymphomatous deposits, and to assess its place in the battery of investigations which may be used in clinical staging of lymphomas. One hundred and sixty-six patients were studied, in whom 198 gallium-67 scans were performed. The results indicated that detection of mediastinal and upper para-aortic node involvement was the most significant function, and such detection might alter clinical staging, and, therefore, therapy. Gallium-67 was unhelpful in splenic scanning, being positive usually only in cases which had clinically detectable involvement. Unsuspected lung and bone lesions were found occasionally, and this was of considerable importance. Gallium-67 scanning is regarded as an important, non-traumatic additional investigation, clinically useful in staging lymphomas.

In the mid 1940's Kellogg applied their CFB experience to the conversion of (CO + H2) to liquid fuels. They built a Pilot Plant with a 10 cm diameter reactor and 8 cm diameter standpipe. Positive results were obtained and in 1948 a commercial size reactor was designed. The reactors were never implemented in the USA. Sasol purchased the technology and in 1955 two reactors were started up at Sasol 1 in South Africa. Since the scale-up from the Pilot Plant was by a factor greater than 500, severe problems were initially encountered. These were resolved as far as the design allowed and a third, improved design, reactor was added in 1960. In 1974 the sudden increase in the price of crude oil motivated the design of a second, much larger, oil from coal Plant. Extensive development work carried out by Sasol and Badger on the Sasol 1 reactors led to the design of scaled-up and improved CFB Synthol reactors. Currently sixteen of these reactors, which are three to four times larger than the Sasol 1 reactors, are in operation at Sasol 2 and 3.