Industrial chemistry & chemical engineering
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Small-scale Soapmaking
Making soap in the context of protracted economic difficulties has meant not only the development of a simple method that could meet rural conditions, but one that could survive the temperament of the wildly fluctuating marketplace as well. Peter Donkor’s book describes the development of soapmakin...
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Low Cost Wooden Duplicator
Construction details for a stencil duplicator that can be built using simple woodworking tools, and is easy to use and maintain. Includes templates for use in construction.
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Small-scale Production of Cementitious Materials
Cement, or at least some form of cementing material, is an essential ingredient of virtually every type of construction. Two alternative approaches to large scale factory production are considered: firstly, the manufacture of Portland cement, or material of comparable quality, in much smaller kilns,...