KR980001820A - Method for preparing stable sodium percarbonate granules - Google Patents

Method for preparing stable sodium percarbonate granules Download PDF

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Publication number
KR980001820A
KR980001820A KR1019960022391A KR19960022391A KR980001820A KR 980001820 A KR980001820 A KR 980001820A KR 1019960022391 A KR1019960022391 A KR 1019960022391A KR 19960022391 A KR19960022391 A KR 19960022391A KR 980001820 A KR980001820 A KR 980001820A
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South Korea
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sodium percarbonate
recycled
weight
granules according
sodium
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KR1019960022391A
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Korean (ko)
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KR100193054B1 (en
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명완재
최문기
한정우
조주환
박창희
신호철
최준선
김영대
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이종학
한화종합화학 주식회사
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    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B15/00—Peroxides; Peroxyhydrates; Peroxyacids or salts thereof; Superoxides; Ozonides
    • C01B15/055—Peroxyhydrates; Peroxyacids or salts thereof
    • C01B15/10—Peroxyhydrates; Peroxyacids or salts thereof containing carbon
    • C01B15/103—Peroxyhydrates; Peroxyacids or salts thereof containing carbon containing only alkali metals as metals

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Detergent Compositions (AREA)

Abstract

본 발명은 반응, 탈수, 조립, 건조의 일련의 공정에 의해 안정한 과탄산나트륨 과립체를 제조함에 있어서, 과산화수소 이용효율이 높고, 운전이 용이한 제조방법에 관한 것이다. 좀 더 상세하게 설명하면, 본 발명은 가) 디에틸렌 트리아민 펜타메틸렌 포스폰산, 규산나트륨 및 황산마그네슘으로 이루어진 안정제 화합물 존재하에서 25~45중량%의 탄산나트륨과 10~20중량%의 과산화수소를 40~60중량%의 물을 매체로 하여 반응시키는 단계; 나) 상기 반응물을 원심분리시켜 수분함량을 15~30중량%로 조절하는 단계; 다) 상기 나)단계의 반응물에 재순환된 미립의 건조한 과탄산나트륨 및 활제를 혼합하여 수분함량을 10~25중량%로 조절하는 단계; 라) 상기 다)단계의 반응물을 압출조립시키는 단계; 및 마) 상기 라)단계의 반응물을 2중량% 이하의 수분함량을 갖도록 건조시키는 단계로 이루어진다.The present invention relates to a method for producing sodium percarbonate granules which is stable by a series of reactions, dehydration, granulation, and drying, with high hydrogen peroxide utilization efficiency and easy operation. In more detail, the present invention provides a mixture of 40 to 45% by weight of sodium carbonate and 10 to 20% by weight of hydrogen peroxide in the presence of a stabilizer compound consisting of diethylene triamine pentamethylene phosphonic acid, sodium silicate and magnesium sulfate. Reacting with 60% by weight of water as a medium; B) centrifuging the reactants to adjust the water content to 15-30 wt%; C) adjusting the water content to 10-25 wt% by mixing the recycled fine dry sodium percarbonate and lubricant with the reactant of step b); D) extruding the reactants of step c); And e) drying the reactant of step d) to have a water content of 2% by weight or less.

Description

안정한 과탄산나트륨 과립체의 제조방법Method for preparing stable sodium percarbonate granules

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 일실시예에 따라 과탄산나트륨을 제조하는 방법을 개략적으로 도시한 제조공정도이다.1 is a manufacturing process diagram schematically showing a method for producing sodium percarbonate according to an embodiment of the present invention.

Claims (14)

과탄산나트륨 과립체의 제조방법에 있어서, 가) 디에틸렌 트리아민 펜타메틸렌 포스폰산, 규산나트륨 및 황산 마그네슘으로 이루어진 안정제 화합물 존재하에서 25~45중량%의 탄산나트륨과 10~20중량%의 과산화수소를 40~60중량%의 물을 매체로 하여 반응시키는 단계; 나) 상기 반응물을 원심분리시켜 수분함량을 15~30중량%로 조절하는 단계; 다) 상기 나)단계의 반응물에 재순환된 미립의 건조한 과탄산나트륨 및 활제를 혼합하여 수분함량을 10~25중량%로 조절하는 단계; 라) 상기 다)단계의 반응물을 압출조립시키는 단계; 및 마) 상기 라)단계의 반응물을 2중량% 이하의 수분함량을 갖도록 건조시키는 단계로 이루어지는 것을 특징으로 하는 안정한 과탄산나트륨 과립체의 제조방법.In the method for producing sodium percarbonate granules, a) 25 to 45% by weight sodium carbonate and 10 to 20% by weight hydrogen peroxide in the presence of a stabilizer compound consisting of diethylene triamine pentamethylene phosphonic acid, sodium silicate and magnesium sulfate Reacting with 60% by weight of water as a medium; B) centrifuging the reactants to adjust the water content to 15-30 wt%; C) adjusting the water content to 10-25 wt% by mixing the recycled fine dry sodium percarbonate and lubricant with the reactant of step b); D) extruding the reactants of step c); And e) drying the reactant of step d) to have a moisture content of 2% by weight or less. 제1항에 있어서, 상기 디에틸렌 트리아민 펜타메틸렌 포스폰산, 규산나트륨 및 황산마그네슘으로 이루어진 안정제 화합물의 사용량이 각각 0.05~5중량%임을 특징으로 하는 안정한 과탄산나트륨 과립체의 제조방법.The method of claim 1, wherein the amount of the stabilizer compound consisting of diethylene triamine pentamethylene phosphonic acid, sodium silicate, and magnesium sulfate is 0.05 to 5% by weight, respectively. 제1항에 있어서, 상기 가)단계의 반응온도가 40℃ 이하임을 특징으로 하는 안정한 과탄산나트륨 과립체의 제조방법.The method for preparing stable sodium percarbonate granules according to claim 1, wherein the reaction temperature of step a) is 40 ° C or less. 제1항에 있어서, 상기 가)단계에서 탄산나트륨의 체류시간이 20~120분을 특징으로 하는 안정한 과탄산나트륨 과립체의 제조방법.The method of claim 1, wherein the residence time of sodium carbonate in step a) is 20 to 120 minutes. 제1항에 있어서, 상기 나)단계에서 원심분리된 일부의 모액을 상기 가)단계로 재순환시키는 것을 특징으로 하는 안정한 과탄산나트륨 과립체의 제조방법.The method of claim 1, wherein the part of the mother liquor centrifuged in step b) is recycled to step a). 제1항에 있어서, 상기 다)단계의 미립의 과탄산나트륨이 후속 공정중에서 발생한 재순환 과탄산나트륨인을 특징으로 하는 안정한 과탄산나트륨 과립체의 제조방법.The method for producing stable sodium percarbonate granules according to claim 1, wherein the fine sodium percarbonate of step c) is recycled sodium percarbonate generated in a subsequent process. 제6항에 있어서, 상기 재순환된 미림의 과탄산나트륨과 최종 생성물과의 비가 0.05~1.0인 것을 특징으로 하는 안정한 과탄산나트륨 과립체의 제조방법.7. The method for producing stable sodium percarbonate granules according to claim 6, wherein the ratio of the recycled mirim sodium percarbonate to the final product is 0.05 to 1.0. 제1항에 있어서, 상기 활제가 통상의 계면활성제 또는 계면활성제 조성물인 것을 특징으로 하는 안정한 과탄산나트륨 과립체의 제조방법.The method for producing stable sodium percarbonate granules according to claim 1, wherein the lubricant is a conventional surfactant or surfactant composition. 제1항 또는 제8항에 있어서, 상기 활제가 재순환 과탄산나트륨에 대하여 0.05~5.0중량%로 혼합됨을 특징으로 하는 안정한 과탄산나트륨 과립체의 제조방법.The method for producing stable sodium percarbonate granules according to claim 1 or 8, wherein the lubricant is mixed at 0.05 to 5.0% by weight relative to recycled sodium percarbonate. 제1항에 있어서, 상기 마)단계에서 건조된 과탄산나트륨은 분류기로 이송되어 최종 제품으로 분류됨을 특징으로 하는 안정한 과탄산나트륨 과립체의 제조방법.The method for preparing stable sodium percarbonate granules according to claim 1, wherein the sodium percarbonate dried in step e) is transferred to a classifier and classified into a final product. 제10항에 있어서, 상기 최종생성된 과탄산나트륨의 겉보기 밀도가 0.6~1.0g/㎤인 것을 특징으로 하는 안정한 과탄산나트륨 과립체의 제조방법.The method for producing stable sodium percarbonate granules according to claim 10, wherein the final density of the produced sodium percarbonate is 0.6 to 1.0 g / cm 3. 제10항에 있어서, 상기 분류기에서 원하는 크기보다 작거나 큰 과탄산나트륨을 분쇄기에서 잘게 분쇄, 또는 최종 제품의 일부를 분쇄시켜 쿠션탱크로 이송시킨 다음, 상기 다)단계로 재순환시킴을 특징으로 하는 안정한 과탄산나트륨 과립체의 제조방법.The method according to claim 10, wherein the sodium percarbonate smaller or larger than the desired size in the classifier is finely pulverized in a pulverizer, or a portion of the final product is pulverized and transferred to a cushion tank, and then recycled to step c). Method for producing sodium percarbonate granules. 제12항에 있어서, 상기 분쇄기에서 생성된 미립의 과탄산나트륨은 필터에서 여과되어 쿠션탱크로 수집되고 상기 다)단계로 재순환됨을 특징으로 하는 안정한 과탄산나트륨 과립체의 제조방법.13. The method for preparing stable sodium percarbonate granules according to claim 12, wherein the particulate sodium percarbonate produced in the grinder is filtered by a filter, collected into a cushion tank, and recycled to step c). 제1항에 있어서, 상기 마)단계에서 건조시 발생된 과탄산나트륨 분진은 별도로 연결된 필터에서 여과되어 다시 쿠션탱크로 수집되어 상기 다)단계로 재순환됨을 특징으로 하는 안정한 과탄산나트륨 과립체의 제조방법.The method of claim 1, wherein the sodium percarbonate dust generated during drying in step e) is filtered in a separately connected filter and collected again into a cushion tank and recycled to step c). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019960022391A 1996-06-19 1996-06-19 Production of stabilized sodium percarbonate KR100193054B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100835548B1 (en) * 2000-09-29 2008-06-09 에보니크 데구사 게엠베하 A process for producing a granular sodium percarbonate by fluid-bed spray granulation and a granular sodium percarbonate produced by the process

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100393323B1 (en) * 2001-05-25 2003-07-31 신세희 Powdered detergent composition and process for preparing the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100835548B1 (en) * 2000-09-29 2008-06-09 에보니크 데구사 게엠베하 A process for producing a granular sodium percarbonate by fluid-bed spray granulation and a granular sodium percarbonate produced by the process

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