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2004
The raw materials used in the formation of chemically bonded phosphate ceramics (CBPCs) are identified. Phosphoric acid and its acid phosphates are the major components. An overview of the extraction chemistry of phosphoric acid from apatite rocks is given and the candidate acid phosphates are identified.
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The raw materials used in the formation of chemically bonded phosphate ceramics (CBPCs) are identified. Phosphoric acid and its acid phosphates are the major components. An overview of the extraction chemistry of phosphoric acid from apatite rocks is given and the candidate acid phosphates are identified.
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, 1995 Preserved fish is presented to the consumer in many forms, but no matter which form the consumer purchases, the quality of the end-product will reflect the quality of the raw material used in its preparation. Like any other food product it is impossible to produce a premium-quality canned fish product using second-rate raw materials.
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1979
Clearly, the resources of Planet Earth are finite. But, equally clearly, the actual amount of raw materials distributed through the Earth’s crust — let alone its interior — is vastly more than mankind could possibly use in a millennium, let alone a mere century or so.
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Clearly, the resources of Planet Earth are finite. But, equally clearly, the actual amount of raw materials distributed through the Earth’s crust — let alone its interior — is vastly more than mankind could possibly use in a millennium, let alone a mere century or so.
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2016
Any ceramic object represents the result of a well-structured production chain starting with the localization and the exploitation of a suitable raw material and ending with the artisanship and craftsmanship of the potter. The study of ceramic raw materials has been increasingly regarded in archaeometric research as the best starting point for ...
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Any ceramic object represents the result of a well-structured production chain starting with the localization and the exploitation of a suitable raw material and ending with the artisanship and craftsmanship of the potter. The study of ceramic raw materials has been increasingly regarded in archaeometric research as the best starting point for ...
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1995
There are more than 20 000 different species of fish in the world, but less than 200 of them are of commercial significance. Almost without exception, the fish which are used for canning come from the sea (as opposed to freshwater or farmed fish), this means that they are ‘wild’ and therefore have to be hunted.
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There are more than 20 000 different species of fish in the world, but less than 200 of them are of commercial significance. Almost without exception, the fish which are used for canning come from the sea (as opposed to freshwater or farmed fish), this means that they are ‘wild’ and therefore have to be hunted.
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2009
: To ensure that raw materials have a uniformly high quality for subsequent processing or for sale in the fresh market sector, it is necessary to cool them to reduce metabolic activity and microbial growth, to remove contaminants, and to sort foods to produce uniform characteristics.
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: To ensure that raw materials have a uniformly high quality for subsequent processing or for sale in the fresh market sector, it is necessary to cool them to reduce metabolic activity and microbial growth, to remove contaminants, and to sort foods to produce uniform characteristics.
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1985
In this chapter, fiberglass reinforced plastics (FRP) raw materials are discussed with particular emphasis on their use in polyester molding compounds. A discussion of the background chemistry is included, where applicable. The chemical formulas are provided for inert fillers together with notes on where the base minerals normally are found, any ...
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In this chapter, fiberglass reinforced plastics (FRP) raw materials are discussed with particular emphasis on their use in polyester molding compounds. A discussion of the background chemistry is included, where applicable. The chemical formulas are provided for inert fillers together with notes on where the base minerals normally are found, any ...
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1995
Meat was one of the first foods to be preserved by ‘canning’, albeit in glass containers (Appert, 1810), and some early examples of meat originally preserved in metal containers for an 1824 expedition to the North West Passage still appear sound. These were assessed and found still to be edible in 1938 (Drummond and Macara, 1938), and were resealed in ...
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Meat was one of the first foods to be preserved by ‘canning’, albeit in glass containers (Appert, 1810), and some early examples of meat originally preserved in metal containers for an 1824 expedition to the North West Passage still appear sound. These were assessed and found still to be edible in 1938 (Drummond and Macara, 1938), and were resealed in ...
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Science of The Total Environment, 1994
Abstract One possibility of preserving raw materials is to recycle manufacturing residues of products while using said products and also of waste products and waste materials. As regards these three modes of recycling the recycling while using the product is considered the most effective in terms of preserving resources.
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Abstract One possibility of preserving raw materials is to recycle manufacturing residues of products while using said products and also of waste products and waste materials. As regards these three modes of recycling the recycling while using the product is considered the most effective in terms of preserving resources.
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2017
Examples of the qualities and functions of the main raw materials used in the manufacture of bakery products are described.
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Examples of the qualities and functions of the main raw materials used in the manufacture of bakery products are described.
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