The present invention relates to a manufacturing method of a food additive solution containing a silica composition which comprises: a step of mixing a composition by mixing 24-26 weight% of silicon 65-69 weight% of sodium carbonate 4-6 weight% of potassium carbonate 3-5 weight% of seashell powder a step of fusion heating which fusion heats the mixed composition by inserting the mixed composition in a furnace and heating at 1600-1700°C for 9-13 hours, in order to have sodium silicate through the reaction between silicon and sodium carbonate at high temperatures a step of extraction cooling a fused product by cooling the fused product which comprises sodium silicate, sodium carbonate, calcium carbonate which is extracted from the seashell and potassium carbonate to be solidified a step of cleaning the solidified fused product a step of inserting and dissolving the cleaned fused product in the water a step of filtering the dissolved product to filter impurities a step of diluting the dissolved product from which impurities are removed in order to have 1-1.02 of specific gravity.COPYRIGHT KIPO 2014[Reference numerals] (S1) Step of mixing a composition (S2) Step of fusion heating (S3) Step of extraction cooling a fused product (S4) Step of cleaning (S5) Step of dissolving (S6) Step of filtering (S7) Step of diluting drinking water본 발명은 규소 조성물을 함유한 식품첨가 용액 제조방법에 관한 것으로써,규소 24~26 중량%, 탄산나트륨 65~69 중량%, 탄산칼륨 4~6 중량%, 조개껍질 분말 3~5 중량%를 혼합시키는 조성물 혼합단계와, 혼합된 조성물을 용융로에 투입시켜 1600~1700℃에서 9시간 내지 13시간 동안 가열하여 규소와 탄산나트륨이 고온에서 반응하여 규산나트륨이 되도록 용융 가열하는 용융가열단계와, 규산나트륨과 탄산나트륨, 조개껍질에서 추출된 탄산칼슘 및 탄산칼륨으로 구성된 용융물을 추출하여 고형화되도록 냉각시키는 용융물추출냉각단계와, 고형화된 용융물을 세척하는 세척단계와,세척이 이루어진 용융물을 물에 투입하여 용해시키는 용해단계와, 용해물을 불순물을 제거하도록 필터링 하는 필터링 단계와, 불순물이 제거된 용해물을 음용수에 비중 1~1.02가 되도록 희석하는 음용수희석단계를 포함하여 이루어지는 것을 특징으로 한다.
