JP2020023416A5 - - Google Patents
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- JP2020023416A5 JP2020023416A5 JP2018149247A JP2018149247A JP2020023416A5 JP 2020023416 A5 JP2020023416 A5 JP 2020023416A5 JP 2018149247 A JP2018149247 A JP 2018149247A JP 2018149247 A JP2018149247 A JP 2018149247A JP 2020023416 A5 JP2020023416 A5 JP 2020023416A5
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- JP
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- Prior art keywords
- calcium
- sulfite
- group
- calcium sulfate
- slurry
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- OSGAYBCDTDRGGQ-UHFFFAOYSA-L Calcium sulfate Chemical class [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 18
- GBAOBIBJACZTNA-UHFFFAOYSA-L Calcium sulfite Chemical compound [Ca+2].[O-]S([O-])=O GBAOBIBJACZTNA-UHFFFAOYSA-L 0.000 claims description 16
- 235000010261 calcium sulphite Nutrition 0.000 claims description 16
- 150000003839 salts Chemical class 0.000 claims description 14
- 239000011780 sodium chloride Substances 0.000 claims description 14
- 239000002002 slurry Substances 0.000 claims description 10
- -1 sulfite compound Chemical class 0.000 claims description 9
- 239000004568 cement Substances 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- LVGQIQHJMRUCRM-UHFFFAOYSA-L Calcium bisulfite Chemical compound [Ca+2].OS([O-])=O.OS([O-])=O LVGQIQHJMRUCRM-UHFFFAOYSA-L 0.000 claims description 6
- 239000011575 calcium Substances 0.000 claims description 6
- 235000010260 calcium hydrogen sulphite Nutrition 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 5
- AXCZMVOFGPJBDE-UHFFFAOYSA-L Calcium hydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 4
- 239000000920 calcium hydroxide Substances 0.000 claims description 4
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 4
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 claims description 4
- VMLAJPONBZSGBD-UHFFFAOYSA-L calcium;hydrogen carbonate;hydroxide Chemical compound [OH-].[Ca+2].OC([O-])=O VMLAJPONBZSGBD-UHFFFAOYSA-L 0.000 claims description 4
- FBEDQOZZWWECAJ-UHFFFAOYSA-M calcium;magnesium;hydroxide Chemical compound [OH-].[Mg+2].[Ca+2] FBEDQOZZWWECAJ-UHFFFAOYSA-M 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims 2
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 claims 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 6
- 150000008064 anhydrides Chemical class 0.000 description 3
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 2
- 238000010828 elution Methods 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- JESHZQPNPCJVNG-UHFFFAOYSA-L magnesium;sulfite Chemical compound [Mg+2].[O-]S([O-])=O JESHZQPNPCJVNG-UHFFFAOYSA-L 0.000 description 1
Description
上記スラリーは、固形分として、亜硫酸カルシウムの半水和物、重亜硫酸カルシウム（Ｃａ（ＨＳＯ ３ ）２）、及び、亜硫酸カルシウムと硫酸カルシウムとの複塩からなる群より選ばれる少なくとも一種の亜硫酸化合物と、硫酸カルシウムの二水和物、水酸化カルシウム、炭酸カルシウム、及び水酸化マグネシウムからなる群より選ばれる少なくとも一種の塩と、を含有することが好ましい。このような成分を含有することによって、六価クロムの溶出を一層低減することが可能なセメント組成物を製造することができる。同様の観点から、亜硫酸スラリーは、特に亜硫酸カルシウムと硫酸カルシウムとの複塩を含有することが好ましい。 The slurry includes, as solid components, at least one sulfite compound selected from the group consisting of calcium sulfite hemihydrate, calcium bisulfite (Ca (HSO 3 ) 2 ), and double salts of calcium sulfite and calcium sulfate. And at least one salt selected from the group consisting of calcium sulfate dihydrate, calcium hydroxide, calcium carbonate, and magnesium hydroxide. By containing such a component, a cement composition capable of further reducing the elution of hexavalent chromium can be produced. From the same viewpoint, the sulfite slurry preferably contains a double salt of calcium sulfite and calcium sulfate.
上記スラリーは、固形分として、亜硫酸カルシウムの半水和物、重亜硫酸カルシウム（Ｃａ（ＨＳＯ ３ ）２）、及び、亜硫酸カルシウムと硫酸カルシウムとの複塩からなる群より選ばれる少なくとも一種の亜硫酸化合物と、硫酸カルシウムの二水和物、水酸化カルシウム、炭酸カルシウム、及び水酸化マグネシウムからなる群より選ばれる少なくとも一種の塩と、を含有することが好ましい。このような成分を含有することによって、六価クロムの溶出を一層低減することが可能なセメント組成物を製造することができる。同様の観点から、亜硫酸スラリーは、特に亜硫酸カルシウムと硫酸カルシウムとの複塩を含有することが好ましい。 The slurry includes, as solid components, at least one sulfite compound selected from the group consisting of calcium sulfite hemihydrate, calcium bisulfite (Ca (HSO 3 ) 2 ), and double salts of calcium sulfite and calcium sulfate. And at least one salt selected from the group consisting of calcium sulfate dihydrate, calcium hydroxide, calcium carbonate, and magnesium hydroxide. By containing such a component, a cement composition capable of further reducing the elution of hexavalent chromium can be produced. From the same viewpoint, the sulfite slurry preferably contains a double salt of calcium sulfite and calcium sulfate.
亜硫酸スラリーに含まれる亜硫酸化合物としては、亜硫酸カルシウム（例えば半水和物）、重亜硫酸カルシウム（Ｃａ（ＨＳＯ ３ ）２）、亜硫酸カルシウムと硫酸カルシウムとの複塩、及び、亜硫酸マグネシウムが挙げられる。亜硫酸スラリーにおける亜硫酸化合物（無水物換算）の含有量は、固形分全体に対して、好ましくは５質量％以上であり、より好ましくは３０質量％以上であり、さらに好ましくは５０質量％以上、特に好ましくは７０質量％以上である。 Examples of the sulfite compound contained in the sulfite slurry include calcium sulfite (for example, hemihydrate), calcium bisulfite (Ca (HSO 3 ) 2 ), a double salt of calcium sulfite and calcium sulfate, and magnesium sulfite. The content of the sulfite compound (in terms of anhydride) in the sulfurous acid slurry is preferably at least 5% by mass, more preferably at least 30% by mass, further preferably at least 50% by mass, particularly preferably with respect to the total solid content. It is preferably at least 70% by mass.
配合部５１では、必要に応じて石膏を配合してもよい。亜硫酸スラリーは、亜硫酸カルシウムの半水和物、重亜硫酸カルシウム（Ｃａ（ＨＳＯ ３ ）２）、及び、亜硫酸カルシウムと硫酸カルシウムとの複塩からなる群より選ばれる少なくとも一つの亜硫酸化合物を含有することが好ましい。この場合、セメント組成物を１００質量部としたときに、セメントクリンカーに、亜硫酸スラリーを上記亜硫酸化合物の無水物換算（又は亜硫酸カルシウムの無水物換算）で好ましくは０．１〜２０質量部、より好ましくは０．１５〜１５質量部、さらに好ましくは０．２〜１０質量部、特に好ましくは０．２５〜５質量部配合する。これによって、得られるセメント組成物における亜硫酸化合物の含有量を維持しつつ、配合物の粉砕を円滑に行うことができる。亜硫酸カルシウムと硫酸カルシウムとの複塩を含む場合は、複塩における亜硫酸カルシウムが上述の質量割合で含有されてよい。セメントクリンカー１００質量部に対する石膏の配合比は、ＳＯ３換算で１．５〜２０質量部程度であってよい。 In the blending section 51, gypsum may be blended as needed. The sulfite slurry contains at least one sulfite compound selected from the group consisting of calcium sulfite hemihydrate, calcium bisulfite (Ca (HSO 3 ) 2 ), and double salts of calcium sulfite and calcium sulfate. Is preferred. In this case, when the cement composition is set to 100 parts by mass, the sulfite slurry is added to the cement clinker preferably in an amount of 0.1 to 20 parts by mass in terms of an anhydride of the sulfite compound (or an anhydride of calcium sulfite). Preferably 0.15 to 15 parts by mass, more preferably 0.2 to 10 parts by mass, particularly preferably 0.25 to 5 parts by mass. Thus, the mixture can be pulverized smoothly while maintaining the content of the sulfite compound in the obtained cement composition. When a double salt of calcium sulfite and calcium sulfate is contained, the calcium sulfite in the double salt may be contained in the above-mentioned mass ratio. The mixing ratio of gypsum to 100 parts by mass of cement clinker may be about 1.5 to 20 parts by mass in terms of SO 3 .
Claims (2)
亜硫酸カルシウムの半水和物、重亜硫酸カルシウム（Ｃａ（ＨＳＯ ３ ）２）、及び、亜硫酸カルシウムと硫酸カルシウムとの複塩からなる群より選ばれる少なくとも一種の亜硫酸化合物と、
硫酸カルシウムの二水和物、水酸化カルシウム、炭酸カルシウム、及び水酸化マグネシウムからなる群より選ばれる少なくとも一種の塩と、を含有する、請求項１〜３のいずれか一項に記載のセメント組成物の製造方法。 The slurry, as a solid content,
At least one sulfite compound selected from the group consisting of calcium sulfite hemihydrate, calcium bisulfite (Ca (HSO 3 ) 2 ), and double salts of calcium sulfite and calcium sulfate;
The cement composition according to any one of claims 1 to 3, further comprising at least one salt selected from the group consisting of calcium sulfate dihydrate, calcium hydroxide, calcium carbonate, and magnesium hydroxide. Method of manufacturing a product.
硫酸カルシウムの半水和物、重亜硫酸カルシウム（Ｃａ（ＨＳＯ ３ ）２）、及び、亜硫酸カルシウムと硫酸カルシウムとの複塩からなる群より選ばれる少なくとも一種の亜硫酸化合物と、
硫酸カルシウムの二水和物、水酸化カルシウム、炭酸カルシウム、及び水酸化マグネシウムからなる群より選ばれる少なくとも一種の塩と、を含有する、請求項１６又は１７に記載のセメント組成物の製造システム。 The slurry, as a solid content,
At least one sulfite compound selected from the group consisting of calcium sulfate hemihydrate, calcium bisulfite (Ca (HSO 3 ) 2 ), and double salts of calcium sulfite and calcium sulfate;
The production system for a cement composition according to claim 16 or 17, comprising: at least one salt selected from the group consisting of calcium sulfate dihydrate, calcium hydroxide, calcium carbonate, and magnesium hydroxide.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018149247A JP6763419B2 (en) | 2018-08-08 | 2018-08-08 | Cement composition manufacturing method and cement composition manufacturing system |
| JP2020122115A JP6958682B2 (en) | 2018-08-08 | 2020-07-16 | Cement composition manufacturing method and cement composition manufacturing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018149247A JP6763419B2 (en) | 2018-08-08 | 2018-08-08 | Cement composition manufacturing method and cement composition manufacturing system |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2020122115A Division JP6958682B2 (en) | 2018-08-08 | 2020-07-16 | Cement composition manufacturing method and cement composition manufacturing system |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2020023416A JP2020023416A (en) | 2020-02-13 |
| JP2020023416A5 true JP2020023416A5 (en) | 2020-03-26 |
| JP6763419B2 JP6763419B2 (en) | 2020-09-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2018149247A Active JP6763419B2 (en) | 2018-08-08 | 2018-08-08 | Cement composition manufacturing method and cement composition manufacturing system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6763419B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6977801B2 (en) * | 2019-03-28 | 2021-12-08 | 宇部興産株式会社 | Sulfur-containing compound and its production method, cement composition and its production method, and sulfur-containing compound production equipment |
| JP7406994B2 (en) * | 2020-01-08 | 2023-12-28 | Ｕｂｅ三菱セメント株式会社 | Method for manufacturing cement composition |
| JP6977805B2 (en) * | 2020-03-31 | 2021-12-08 | 宇部興産株式会社 | Methods for Producing Sulfur-Containing Compositions, Desulfurization Products, Clinker, and Cement Compositions |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4251280A (en) * | 1979-05-21 | 1981-02-17 | Allis-Chalmers Corporation | Process for handling and utilizing system gas in a pyro-processing system |
| US5312609A (en) * | 1992-12-31 | 1994-05-17 | Dravo Lime Company | Method of sulfur dioxide removal from gaseous streams with α-hemihydrate gypsum product formation |
| JP4388615B2 (en) * | 1999-02-09 | 2009-12-24 | 太平洋セメント株式会社 | SOx reduction method for chlorine bypass exhaust |
| JP4105466B2 (en) * | 2002-03-29 | 2008-06-25 | 太平洋セメント株式会社 | Cement kiln extraction gas processing method |
| JP4775045B2 (en) * | 2006-03-14 | 2011-09-21 | 宇部興産株式会社 | Reducing gypsum composition, method for producing the same, cement-based solidifying material, and solidifying method |
| JP5348792B2 (en) * | 2010-03-17 | 2013-11-20 | 太平洋セメント株式会社 | Combustion gas extraction probe and operating method thereof |
| JP5730087B2 (en) * | 2011-03-22 | 2015-06-03 | 株式会社デイ・シイ | Cement clinker manufacturing method |
| JP5791927B2 (en) * | 2011-03-22 | 2015-10-07 | 株式会社デイ・シイ | Method for producing highly active cement clinker |
| JP6184149B2 (en) * | 2012-10-11 | 2017-08-23 | 太平洋セメント株式会社 | Fired product |
| JP6153258B2 (en) * | 2013-09-30 | 2017-06-28 | 太平洋セメント株式会社 | Cement kiln extraction gas processing method and chlorine bypass system |
| JP6579928B2 (en) * | 2015-11-25 | 2019-09-25 | 株式会社トクヤマ | Method for producing cement clinker |
| JP6519610B2 (en) * | 2017-06-30 | 2019-05-29 | 宇部興産株式会社 | Gypsum and method for producing the same, cement composition and method for producing the same, and ground improvement material |
| JP6769459B2 (en) * | 2018-06-28 | 2020-10-14 | 宇部興産株式会社 | Cement composition manufacturing method and cement composition manufacturing system |
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- 2018-08-08 JP JP2018149247A patent/JP6763419B2/en active Active
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