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PROCEDE DE PREPARATION D'UN PRODUIT A FAIBLE TENEUR EN SEL DE SODIUM, PRODUIT POUVANT AINSI ETRE OBTENU ET SON UTILISATION
专利权人:
AKZO NOBEL CHEMICALS INTERNATIONAL B.V.
发明人:
STOKKERS, GERRIT JAN,ALTENA, EVERT
申请号:
CA2759048
公开号:
CA2759048C
申请日:
2010.03.19
申请国别(地区):
CA
年份:
2018
代理人:
摘要:
The present invention relates to a process to prepare a salt productcontaining sodium chloride (NaCI) and at leastone additive, wherein the salt product has a particle size of from 50 µm to10 mm, which process comprises the steps of: a) optionally,crushing a sodium chloride-containing material to a particle size that isbetween 1,000 times smaller and 3 times smaller thanthe size of the final salt product; b) optionally, crushing the at least oneadditive starting material to a particle size that is between0.5 and 2 times the particle size of the sodium chloride-containing materialparticles resulting from step a.); c) subsequently, mixingthe sodium chloride-containing material particles of a particle size that isbetween 1,000 times smaller and 3 times smallerthan the size of the final salt product, and additive particles of a particlesize that is between 0.5 and 2.0 times the particle size ofthe sodium chloride-containing material particles; d) subsequently, compactingthe particle mixture resulting from step c.) using apressure of from 40 to 400 MPa; e. subsequently, crushing the compacted saltproduct to give particles of the desired particle sizeof 50 µm to 10 mm; wherein the steps are carried out under substantiallydry conditions. Additionally, the invention provides thelow sodium salt product obtainable by the process and the use thereof forhuman or animal consumption.
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中国工程科技知识中心
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