Published July 1997
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Developing method for preparing dicalcium phosphate used in feed supplement starting with Syrian phosphate and its products
- 1. Atomic Energy Commission, Dept. of Chemistry, Damascus (Syrian Arab Republic)
Description
Dicalcium phosphate was prepared starting with uranium barrened commercial phosphoric acid. The resulting products were useful for feed addition. The undesirable contaminants such as SO4-2 and F- were isolated by precipitation on two stages using calcium hydroxide. The first stage was done at pH value between 2.7-2.9 and the second at pH value of about 6-7. zinc and other trace elements levels were reduced by addiof small amount of ammonium sulfide in the first stage precipitation. X-ray diffraction study showed that the resulting product was mainly a Brushite. . (author). 23 refs., 8 tabs
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Additional details
Publishing Information
- Imprint Pagination
- 21 p.
- Report number
- AECS-C/FRSR--142
INIS
- Country of Publication
- Syrian Arab Republic
- Country of Input or Organization
- Syrian Arab Republic
- INIS RN
- 29056073
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- ANIMAL FEEDS; CALCIUM PHOSPHATES; CHEMICAL PREPARATION; EXPERIMENTAL DATA; PH VALUE; PHOSPHORIC ACID; PURIFICATION; SYRIA; X-RAY DIFFRACTION
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; ARAB COUNTRIES; ASIA; CALCIUM COMPOUNDS; COHERENT SCATTERING; DATA; DEVELOPING COUNTRIES; DIFFRACTION; FOOD; HYDROGEN COMPOUNDS; INFORMATION; INORGANIC ACIDS; INORGANIC COMPOUNDS; MIDDLE EAST; NUMERICAL DATA; OXYGEN COMPOUNDS; PHOSPHATES; PHOSPHORUS COMPOUNDS; SCATTERING; SYNTHESIS