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GB1125985A
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Improvements in anti-corrosive coatings
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Apparatus and methods for bringing two or more phases into intimate contact
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Methods of affecting chemical heterogeneous phase reactions
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A method of conducting heterogeneous chemical reactions
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Improvements in and relating to heat transfer operations and equipment for these purposes
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Improvements relating to the production of metal chromates and chromate pigments
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Improvements in dehydration
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Improvements in and relating to the manufacture of metal chromates
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US1989512A
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Process for the utilization of sludge acid
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