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Questions and Answers
What are the principal mineral raw materials for the manufacture of ceramic products?
What are the principal mineral raw materials for the manufacture of ceramic products?
- Calcite and dolomite
- Gypsum and limestone
- Quartz and feldspar
- Silica and alumino-silicates (correct)
Which minerals are considered objectionable for ceramic products due to iron staining and iron oxide minerals?
Which minerals are considered objectionable for ceramic products due to iron staining and iron oxide minerals?
- Quartz (correct)
- Clays
- Feldspars
- Orthoclase
What is the chief use of soda feldspar in the ceramic industry?
What is the chief use of soda feldspar in the ceramic industry?
- Glazing purposes (correct)
- Preparing ceramic bodies
- Fusing at high temperatures
- Fluxing material in enamels
What should the feldspars for use in the ceramic industry contain?
What should the feldspars for use in the ceramic industry contain?
Which geological sources are suitable for silica in the ceramic industry?
Which geological sources are suitable for silica in the ceramic industry?
What is the function of feldspars in the preparation of ceramic bodies and glazes?
What is the function of feldspars in the preparation of ceramic bodies and glazes?
What is the primary constituent of both ball clay and china clay?
What is the primary constituent of both ball clay and china clay?
Which material helps in bonding and cementing the ingredients together in ceramics?
Which material helps in bonding and cementing the ingredients together in ceramics?
What does the term 'ceramics' broadly include, according to the text?
What does the term 'ceramics' broadly include, according to the text?
What are ceramics generally characterized by, as per the text?
What are ceramics generally characterized by, as per the text?
Which method of forming clay involves the use of a potter's wheel and is still used today?
Which method of forming clay involves the use of a potter's wheel and is still used today?
Which material contributes to the mechanical strength of ceramics?
Which material contributes to the mechanical strength of ceramics?
What is the meaning of the word 'ceramics', as per its origin?
What is the meaning of the word 'ceramics', as per its origin?
Which of the following is NOT a category of ceramic materials produced from silica and alumina?
Which of the following is NOT a category of ceramic materials produced from silica and alumina?
What are pegmatites often zoned into distinct bands of, according to the text?
What are pegmatites often zoned into distinct bands of, according to the text?
Which type of clay has greater plasticity and lesser refractoriness due to the presence of montmorillonite?
Which type of clay has greater plasticity and lesser refractoriness due to the presence of montmorillonite?
What is the chemical formula for phosphoric acid?
What is the chemical formula for phosphoric acid?
Which industry uses thermal process phosphoric acid of higher purity?
Which industry uses thermal process phosphoric acid of higher purity?
How is wet process phosphoric acid produced?
How is wet process phosphoric acid produced?
How is excess cooling water from wet process phosphoric acid production managed?
How is excess cooling water from wet process phosphoric acid production managed?
What is a potential consequence of leachate seeping from cooling ponds?
What is a potential consequence of leachate seeping from cooling ponds?
What is the primary use of thermal process phosphoric acid?
What is the primary use of thermal process phosphoric acid?
What is the primary raw material for the production of phosphoric acid by the wet process?
What is the primary raw material for the production of phosphoric acid by the wet process?
Why do some U. S. companies prefer the hemihydrate process over the dihydrate process?
Why do some U. S. companies prefer the hemihydrate process over the dihydrate process?
What does the dihydrate process produce gypsum in the form of?
What does the dihydrate process produce gypsum in the form of?
In the wet process for phosphoric acid production, what is used to separate gypsum from the reaction solution?
In the wet process for phosphoric acid production, what is used to separate gypsum from the reaction solution?
What percentage of P2O5 does wet process phosphoric acid normally contain?
What percentage of P2O5 does wet process phosphoric acid normally contain?
What are the raw materials for the production of phosphoric acid by the thermal process?
What are the raw materials for the production of phosphoric acid by the thermal process?
What is formed during the combustion step in the thermal process phosphoric acid manufacture?
What is formed during the combustion step in the thermal process phosphoric acid manufacture?
How is phosphoric acid further concentrated in most cases to meet phosphate feed material specifications for fertilizer production?
How is phosphoric acid further concentrated in most cases to meet phosphate feed material specifications for fertilizer production?
What is used to separate gypsum crystals from the acid during the reaction in the wet process for phosphoric acid production?
What is used to separate gypsum crystals from the acid during the reaction in the wet process for phosphoric acid production?
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