Title:
PROCESS FOR PREPARING CALCIUM SUPPLEMENT FOR FEED ADDITIVES
Document Type and Number:
WIPO Patent Application WO/2017/209706
Kind Code:
A3
Abstract:
A process for preparing calcium supplement for feed additives comprises the steps of extracting the limestone which contains calcium carbonate content of more than 95% by dry weight; drying the said limestone by convective hot air until the moisture content of between 0.01-0.05% by dry weight has been obtained; grinding the said limestone by vertical shaft impactor to produce ground calcium carbonate; and classifying particle size of the said ground calcium carbonate by means of sieving, centrifugal and/or cyclonic suction type machines. The disclosed process is characterized in that obtained ground calcium carbonate particles to be used as animal feed additive are round-shaped particles with low angularity or sharpness and therefore they are suitable for use as an alternative source of calcium supplement in feedstuffs such as chicken feed, duck feed, beef cattle feed-fattening cattle feed, goat feed, sheep feed, fish feed, shrimp feed, or domestic pet food.
Inventors:
PLANG-NGERN SAKSIT (TH)
THAMAPIPOL SIRINPORN (TH)
THAMAPIPOL SIRINPORN (TH)
Application Number:
PCT/TH2017/000043
Publication Date:
March 15, 2018
Filing Date:
May 30, 2017
Export Citation:
Assignee:
THE SIAM CEMENT PUBLIC COMPANY LTD (TH)
International Classes:
A23K20/24; A23K10/30; A23K20/174; A23K40/00; A23K50/10; A23K50/42; A23K50/75
Domestic Patent References:
| WO2013142473A1 | 2013-09-26 |
Foreign References:
| US4898620A | 1990-02-06 | |||
| US20050238739A1 | 2005-10-27 | |||
| US6475459B1 | 2002-11-05 | |||
| US6312659B1 | 2001-11-06 |
Attorney, Agent or Firm:
MINJOY, Kamonphan (TH)
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