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2 136 637

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IPC

(21) (22)

Application

98110588/25, 1998-06-03

(24)

Start date

1998-06-03

(22)

Actual filing date

1998-06-03

(45)

Published

1999-09-10

(72)

Inventor

Klassen P.V.(Ru)Zavertjaeva T.I.(Ru)Lykov M.V.(Ru)Lapin Evgenij Vasil'EvichTret'Jak Evgenij VladimirovichKravchenko Aleksandr IosifovichStepanenko Mikhail DmitrievichLesnichij Nikolaj IvanovichDenisenko Vladimir KonstantinovichShabalin Valerij IvanovichDudka Vladimir AlekseevichBondarev Pavel Nikolaevich

(73)

Holder

Oao

METHOD OF PREPARING FEED CALCIUM PHOSPHATES Russian patent published in 1999 - IPC

Abstract RU 2136637 C1

FIELD: cattle breeding, more particularly feeding of animals. SUBSTANCE: method comprises decomposing tricalcium phosphate with phosphoric acid and drying the product at 110-450 C. Acid is used for decomposition in amount required to attain P₂O₅ acid to P₂O₅ tricalcium phosphate ratio of 1: 0.5-2.0, and process is carried out at moisture content of 30-50% and temperature of 60-100 C, the resulting product is granulated at 60-120 C. Acid is extraction phosphoric acid which is tricalcium phosphate or any desalting component, and precipitate is subsequently separated to 0.2-2% of impurities present in said acid. EFFECT: more efficient preparation method. 2 cl, 3 ex

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RU 2 136 637 C1

Authors

Klassen P.V.(Ru)

Zavertjaeva T.I.(Ru)

Lykov M.V.(Ru)

Lapin Evgenij Vasil'Evich

Tret'Jak Evgenij Vladimirovich

Kravchenko Aleksandr Iosifovich

Stepanenko Mikhail Dmitrievich

Lesnichij Nikolaj Ivanovich

Denisenko Vladimir Konstantinovich

Shabalin Valerij Ivanovich

Dudka Vladimir Alekseevich

Bondarev Pavel Nikolaevich

Dates

1999-09-10—Published

1998-06-03—Filed