JPS6250410B2 - - Google Patents
Info
- Publication number
- JPS6250410B2 JPS6250410B2 JP54003072A JP307279A JPS6250410B2 JP S6250410 B2 JPS6250410 B2 JP S6250410B2 JP 54003072 A JP54003072 A JP 54003072A JP 307279 A JP307279 A JP 307279A JP S6250410 B2 JPS6250410 B2 JP S6250410B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- soluble
- mixture
- sulfur
- chromic oxide
- 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.)
- Expired
Links
- 229910052717 sulfur Inorganic materials 0.000 claims description 77
- 239000011593 sulfur Substances 0.000 claims description 75
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 74
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 claims description 72
- 238000000034 method Methods 0.000 claims description 67
- 239000000047 product Substances 0.000 claims description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 41
- 238000001354 calcination Methods 0.000 claims description 38
- 239000000203 mixture Substances 0.000 claims description 33
- JHWIEAWILPSRMU-UHFFFAOYSA-N 2-methyl-3-pyrimidin-4-ylpropanoic acid Chemical group OC(=O)C(C)CC1=CC=NC=N1 JHWIEAWILPSRMU-UHFFFAOYSA-N 0.000 claims description 29
- 239000000126 substance Substances 0.000 claims description 25
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 20
- 235000011152 sodium sulphate Nutrition 0.000 claims description 20
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 19
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 18
- 239000012265 solid product Substances 0.000 claims description 18
- 239000002245 particle Substances 0.000 claims description 17
- 235000011130 ammonium sulphate Nutrition 0.000 claims description 15
- 238000010304 firing Methods 0.000 claims description 15
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 14
- JOSWYUNQBRPBDN-UHFFFAOYSA-P ammonium dichromate Chemical compound [NH4+].[NH4+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O JOSWYUNQBRPBDN-UHFFFAOYSA-P 0.000 claims description 14
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims description 14
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims description 14
- 150000001845 chromium compounds Chemical class 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 13
- 239000007787 solid Substances 0.000 claims description 13
- 150000001875 compounds Chemical class 0.000 claims description 12
- 150000003863 ammonium salts Chemical class 0.000 claims description 11
- 239000011651 chromium Substances 0.000 claims description 11
- 238000000354 decomposition reaction Methods 0.000 claims description 11
- 238000005406 washing Methods 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 10
- 239000007864 aqueous solution Substances 0.000 claims description 9
- 229910052804 chromium Inorganic materials 0.000 claims description 9
- 239000002244 precipitate Substances 0.000 claims description 9
- 239000011780 sodium chloride Substances 0.000 claims description 9
- 239000002195 soluble material Substances 0.000 claims description 9
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 7
- 235000019270 ammonium chloride Nutrition 0.000 claims description 7
- PXLIDIMHPNPGMH-UHFFFAOYSA-N sodium chromate Chemical compound [Na+].[Na+].[O-][Cr]([O-])(=O)=O PXLIDIMHPNPGMH-UHFFFAOYSA-N 0.000 claims description 7
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- 229910052936 alkali metal sulfate Inorganic materials 0.000 claims description 2
- 239000003575 carbonaceous material Substances 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 230000001376 precipitating effect Effects 0.000 claims description 2
- HIVLDXAAFGCOFU-UHFFFAOYSA-N ammonium hydrosulfide Chemical group [NH4+].[SH-] HIVLDXAAFGCOFU-UHFFFAOYSA-N 0.000 claims 1
- 239000012736 aqueous medium Substances 0.000 claims 1
- VQWFNAGFNGABOH-UHFFFAOYSA-K chromium(iii) hydroxide Chemical compound [OH-].[OH-].[OH-].[Cr+3] VQWFNAGFNGABOH-UHFFFAOYSA-K 0.000 claims 1
- 150000003839 salts Chemical class 0.000 description 29
- 239000000243 solution Substances 0.000 description 16
- 235000015217 chromium(III) sulphate Nutrition 0.000 description 10
- 229940055042 chromic sulfate Drugs 0.000 description 9
- GRWVQDDAKZFPFI-UHFFFAOYSA-H chromium(III) sulfate Chemical compound [Cr+3].[Cr+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O GRWVQDDAKZFPFI-UHFFFAOYSA-H 0.000 description 9
- 229910000356 chromium(III) sulfate Inorganic materials 0.000 description 9
- 239000011696 chromium(III) sulphate Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- 230000015572 biosynthetic process Effects 0.000 description 7
- 239000012535 impurity Substances 0.000 description 7
- 239000002893 slag Substances 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 6
- 239000003638 chemical reducing agent Substances 0.000 description 6
- -1 charcoal Chemical compound 0.000 description 5
- SOCTUWSJJQCPFX-UHFFFAOYSA-N dichromate(2-) Chemical compound [O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O SOCTUWSJJQCPFX-UHFFFAOYSA-N 0.000 description 5
- HFTNNOZFRQLFQB-UHFFFAOYSA-N ethenoxy(trimethyl)silane Chemical compound C[Si](C)(C)OC=C HFTNNOZFRQLFQB-UHFFFAOYSA-N 0.000 description 5
- 239000000049 pigment Substances 0.000 description 5
- 239000008247 solid mixture Substances 0.000 description 5
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 4
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000003610 charcoal Substances 0.000 description 3
- 229910000423 chromium oxide Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000003837 high-temperature calcination Methods 0.000 description 3
- 238000005272 metallurgy Methods 0.000 description 3
- 238000005649 metathesis reaction Methods 0.000 description 3
- 238000000197 pyrolysis Methods 0.000 description 3
- 159000000000 sodium salts Chemical class 0.000 description 3
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 150000001720 carbohydrates Chemical class 0.000 description 2
- 235000014633 carbohydrates Nutrition 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- DSHWASKZZBZKOE-UHFFFAOYSA-K chromium(3+);hydroxide;sulfate Chemical compound [OH-].[Cr+3].[O-]S([O-])(=O)=O DSHWASKZZBZKOE-UHFFFAOYSA-K 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 239000008103 glucose Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 238000011005 laboratory method Methods 0.000 description 2
- 235000013379 molasses Nutrition 0.000 description 2
- KMUONIBRACKNSN-UHFFFAOYSA-N potassium dichromate Chemical compound [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O KMUONIBRACKNSN-UHFFFAOYSA-N 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000003303 reheating Methods 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- AKHNMLFCWUSKQB-UHFFFAOYSA-L sodium thiosulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 2
- 235000019345 sodium thiosulphate Nutrition 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000001694 spray drying Methods 0.000 description 2
- 235000019698 starch Nutrition 0.000 description 2
- 239000008107 starch Substances 0.000 description 2
- 238000005979 thermal decomposition reaction Methods 0.000 description 2
- PMJNEQWWZRSFCE-UHFFFAOYSA-N 3-ethoxy-3-oxo-2-(thiophen-2-ylmethyl)propanoic acid Chemical compound CCOC(=O)C(C(O)=O)CC1=CC=CS1 PMJNEQWWZRSFCE-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- ATZCTHBSTHFZBR-UHFFFAOYSA-L O[Cr](O[Cr](O)(=O)=O)(=O)=O.S Chemical compound O[Cr](O[Cr](O)(=O)=O)(=O)=O.S ATZCTHBSTHFZBR-UHFFFAOYSA-L 0.000 description 1
- JQZACWSYRAAPHY-UHFFFAOYSA-N [Cr].[Cr].[Na] Chemical compound [Cr].[Cr].[Na] JQZACWSYRAAPHY-UHFFFAOYSA-N 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910001508 alkali metal halide Inorganic materials 0.000 description 1
- 150000008045 alkali metal halides Chemical class 0.000 description 1
- 239000001166 ammonium sulphate Substances 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 1
- ABXXWVKOBZHNNF-UHFFFAOYSA-N chromium(3+);dioxido(dioxo)chromium Chemical compound [Cr+3].[Cr+3].[O-][Cr]([O-])(=O)=O.[O-][Cr]([O-])(=O)=O.[O-][Cr]([O-])(=O)=O ABXXWVKOBZHNNF-UHFFFAOYSA-N 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000011872 intimate mixture Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002790 naphthalenes Chemical class 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000013341 scale-up Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 229910052979 sodium sulfide Inorganic materials 0.000 description 1
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 150000003464 sulfur compounds Chemical class 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 150000004764 thiosulfuric acid derivatives Chemical class 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G37/00—Compounds of chromium
- C01G37/02—Oxides or hydrates thereof
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIESÂ ; PREPARATION OF CARBON BLACKÂ ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/34—Compounds of chromium
- C09C1/346—Chromium oxides
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIESÂ ; PREPARATION OF CARBON BLACKÂ ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/04—Physical treatment, e.g. grinding, treatment with ultrasonic vibrations
- C09C3/043—Drying, calcination
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIESÂ ; PREPARATION OF CARBON BLACKÂ ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/06—Treatment with inorganic compounds
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B34/00—Obtaining refractory metals
- C22B34/30—Obtaining chromium, molybdenum or tungsten
- C22B34/32—Obtaining chromium
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/10—Solid density
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/80—Compositional purity
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Inorganic Chemistry (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Description
é
žå第äºã¯ãã ã®ïŒã€ã®äž»èŠççšéã¯é¡æãšã
ãŠã®çšéãšå¶éå·¥åŠã«ãããå¿çšãããªãã¡é«æ§
èœã¯ãã å«æåéã«çšããããéå±ã¯ãã ã®è£œé
ã«ããããã®ã§ãããå®éãæ§ã ãªå質ã®é žåäº
ã¯ãã ããã®ïŒã€ã®äœ¿çšç®çã®ããã«è£œé ãã
ããããšãã°ãé¡æãšããŠçšããããé žå第äºã¯
ãã ã¯ãããè¯å¥œãªçè²ç¹æ§ããã€ãããªç²åŸã
ãã³ç²åæ§é ããã€ãŠããªããã°ãªããªãããã
ã¯æŽã«äœãäžçŽç©æºäœããã€ããšã奜ãŸãããã
å¿ ãããæ¬è³ªçãªãã®ã§ã¯ãªããããããªããã
å¶éå·¥åŠäžçšãããããã®ã«ãããŠã¯äœãäžçŽç©
æºäœããã€ããšãå¿ èŠã§ãããç¹ã«ããã®ç¡«é»å«
æéã¯ãç¡«é»ã®ååšãé žå第äºã¯ãã ããäºæ¬¡ç
ã«è£œé ãããåéã«ãããŠæ害ãªãã®ã§ãããšã
ãããšãç¥ãããŠããããšãããã§ããéãäœã
ãªããªããã°ãªããªãããããããçæ³çã«ãã
ã°ãå¶éå·¥åŠäžçšããããé žå第äºã¯ãã ã«ãã
ãŠã¯ç¡«é»å«æéãŒããæãŸããããå®éåé¡ãã
ã¯äžå¯èœã§ããããšãå·¥æ¥äžèªèãããŠãããã
ããªããã§ãéå±ã¯ãã 補é æ¥è ããã³ãã®ååŒ
å ã®è ãã¡ã¯å·¥æ¥çšçµæžçãªæ¹æ³ã§è£œé ãããæ
å°éã®ç¡«é»å«æéã§æºè¶³ããªããã°ãªããªãã€
ãã20幎åãç£æ¥çã¯çŽ100ppmïŒé žå第äºã¯ã
ã çŸäžéééšã«å¯Ÿããç¡«é»éééšïŒã®ç¡«é»å«æé
ãåãå ¥ããã°ãªããªãã€ãããããè¿å¹Žã«ã¯ã
60è¥ããã¯70ppmãšããå°éã®äžæº¶æ§ç¡«é»ãå«
æããå¶éåŠäžçšãããåŸãé žå第äºã¯ãã ãå
æ¥ããŒã¹ã§è£œé ãããããã«ãªã€ãŠããŠãããã
ã®å Žåãç¡«é»ã¯äžæº¶æ§åœ¢æ ããšã€ãŠããã®ã§ãã
ã®éã¯ç°¡åãªæŽæµã§ã¯æžå°ãããªãã ããäœãç¡«é»å«æéã®å¶éåŠäžçšãããåŸãé ž
å第äºã¯ãã ã補é ããããšãé¡ããããšããã
ãšã¯äžè¬ã«èªèãããŠãããããã®ãããªçæç©
ã¯ãç¹ã«çŽç²ãªææã®äœ¿çšã䌎ãæ¹æ³ïŒ1946幎ã«
åè¡ãããSritish and United States
Technical Industrial Intelligence Report B.I.
O.S.679ããã³F.I.A.T.814ã«èšèŒãããŠããïŒã«
ãã1945幎以åã«ãã€ãã«ãã補é ãããéå®ã
ããéã®ãã®ãé€ããŠã¯ãæ¬çºæã«å ç«ã€ãŠã¯ã
ããŸã§åæ¥çã«è£œé ãããŠã¯ããªããæ倧é
0.005ïŒ ã®ç¡«é»ãå«å«æããé žå第äºã¯ãã ãåŸ
ãããã®åèšæ¹æ³ã«ãããŠã¯ãé«äŸ¡ãªäœç¡«é»å«æ
éã¯ãã é žã«ãªãŠã ã®äœ¿çšãããã³æšçãããã¯
æšç²ã«ããç¡«é»å«æéã®äœæžãå¿ èŠã§ãã€ããã
ã®åŽåãèŠãããã€æéã浪費ããæ¹æ³ã¯çµæžç
ã§ã¯ãªãã€ããããŸãè¿å¹Žã«ãããŠã¯äœ¿çšãããŠ
ã¯ããªãã éåžžã«äœãç¡«é»å€ã¯ã泚ææ·±ãã³ã³ãããŒã«ã
ããæ¡ä»¶äžã§æäœããåŸããããªå°èŠæš¡ã®ããã
ã¯å®éšå®€ã§ã®æ¹æ³ã«ããéæããããšãå¯èœã§ã
ããããããªããããããªããããã«ãããã®ã
ããªæ¹æ³ã¯ãå®éåé¡ãšããŠãŸãã«å¿ èŠã§ãããš
ããã®å€§èŠæš¡ãªå·¥æ¥ççç£ã«ãããŠçŸã«ä¿¡é ŒãåŸ
ããããªæ¹æ³ãæ¡åºãããšããããšã«ãããŠã¯ã»
ãšãã©ãããã¯ãŸã€ãã圹ã«ç«ããªãããªããªã
ã°ãå°èŠæš¡ãªæ¹æ³ãæ¡å€§ãããšããããšã¯éåžžäž
çŽç©æºäœã®å¢å€§ããããããã®ã ããã§ãããçµ
æžçèŠå°ããå®éçã«èªããããããã«ã¯ãããš
ãã°100KgïŒhr以äžã®å²åã§çµæžçã«èªå¯ã§ãã
è£ çœ®ã«ãããŠé«å質ã®é žå第äºã¯ãã ã補é ãã
ããšãã§ãããšããããšãå¿ èŠã§ããã å¶éåŠäžäœ¿çšãåŸãå質ã®é žå第äºã¯ãã ã¯ã
æ®éãå®è³ªäžååŠéè«çã«åœéå²åã§ããéã¯ã
ã é žãããªãŠã ãšå¡©åã¢ã³ã¢ããŠã ã®åå¿ã«ãã
åŸãããéã¯ãã é žã¢ã³ã¢ããŠã ãšå¡©åãããªãŠ
ã ã®æ··åç©ãçå ã«ãããŠçŒæããããšã«ããå·¥
æ¥çã«è£œé ãããããã®å Žåã®çŒææéã¯é žå第
äºã¯ãã ãé«ãCr2O3å«æéããã€ããšãä¿èšŒã
ãããã«700â以äžã§ãªããã°ãªããªããããã
ãªããããã¯é«ããããšçå ã«ãããã¹ã©ã°çæ
ã®å±éºæ§ãå¢å€§ããã®ã§ãéåžž850â以äžã§ã
ãããã®çŒææéããã³ä»ã®æ¡ä»¶ã泚ææ·±ãæé©
ã«ä¿æããããšã«ããçŽ60è¥ããã¯70ppmã®ç¡«
é»å«æéããããããã®ãšããŠçŸåšåæ¥çã«çšã
ãããŠããåèšæ¬æ³ã«ãããŠããã®ããšã¯åºç€ç
ãªããšã§ããã å¡©åã¢ã³ã¢ããŠã ã«ä»£ããç¡«é žã¢ã³ã¢ããŠã ã®
䜿çšãšããããšããããšãã°çµæžççç±ãããã
ã°ãã°æãŸããããšãããããããã¯èš±å®¹ãé£ã
é«ç¡«é»å«æéãããããããšããçŸåšã®ãšããå
èšæ¹æ³ã«ãããŠã¯äœ¿çšã§ããªãã ä»ã«ãç¡«é žç¬¬äºã¯ãã ã®å·¥æ¥ç補é æ¹æ³ã¯ãã
ããçŸåšã®ãšããããããã¯äž»ã«ããçšåºŠã®äžçŽ
ç©ã蚱容ããããããªé¡æãããã¯ä»ã®ããäœã
ççŽã®é žå第äºã¯ãã ã®è£œé ã«éå®ãããŠããã äœãç¡«é»å«æéãæèµ·ããŠããããã€ãã®æ¹æ³
ããããŸã§èšè¿°ãããŠãããããšãã°ããã€ãç¹
èš±æ现æžç¬¬2635086å·ã«ãããŠã¯ãç¡«é žã¢ã³ã¢ã
ãŠã ãš11ä¹è³30ã¢ã«ïŒ ééã®éã¯ãã é žãããªãŠ
ã ã®åå¿ã«ããéã¯ãã é žã¢ã³ã¢ããŠã ã圢æ
ãã次ãã§æ··åç©ã800ã1100âã§ççŒããããš
ã«ãã30ppmãšããäœãã®ç¡«é»å«æå€ãåŸãã
ãšãå¯èœã§ãããšããããšãè¿°ã¹ãããŠãããæ
æ¡ãããæãé«ã枩床ã§ã¯è£ 眮å ã§ã®ã¹ã©ã°çæ
ã®å±éºããããããã®æ¹æ³ã®ç®ã ã€ãçæã¯ãé
éã®éã¯ãã é žãããªãŠã ã®äœ¿çšãå¿ ç¶çã«éã¯
ãã é žãããªãŠã ã«åºãé žå第äºã¯ãã ã®åçã
éåžžã«äœãããšãæå³ãããšããããšã§ãããã
ããããã®ããšã¯åèšæ¹æ³ãåŠå³ã®ãªããã®ã«ã
ãŠããã Kovelä»ã«ããZhurnal Prikladnoi Khimii第43
巻第ïŒå·ïŒ1970幎ïŒæïŒã®236â240ããŒãžã«èšèŒ
ãããŠããè«æã«ããã°ãã¯ãã é žãããªãŠã ã
äºé žåç¡«é»ã§ç°å ããã«ããã€ãŠèµ·ããåå¿ã¡ã«
ããºã ã«ã€ããŠã®è©³çŽ°ãªè«è°ããªãããŠããã
247ããŒãžã«ã¯ç¡«é»ã¯ç±çãããã¯ååŠçæ¹æ³ã«
ããé€å»ãåŸããšããããšãè¿°ã¹ãããŠãããå
åŠçæ¹æ³ã¯ããããããããšãã°æ°Žåé žå第äºã¯
ãã ãæ²æ®¿ãããããäžäŸ¡ã®ã¯ãã ã®å¡©åºæ§ç¡«é»
å«æå¡©ãæ°Žé žåãããªãŠã ã§åŠçããããšãå«ã
ã§ããã ããããã®ãããªæ¹æ³ã¯ç¡«é»å«æéãäœ
æžãããããããªããããããã¯çŸåšçµæžçã«æ
ãŸããŠããéåžžã«äœãç¡«é»å«æå€ãããããããš
ã¯ã§ããªãããŸã247ããŒãžã«ã¯ãæçµçæç©ã§
ããé žå第äºã¯ãã ã圢æããããã«ååŠçã«çµ
åããŠããæ°Žé žåºãæçµçã«åãã¯ããããšãå¿
ç¶çã«å å«ããç¹å¥ã®çŒææ¹æ³ã«ãããŠãç¡«é»å«
æå¡©ã¯700â765âã§å解ããããŸãæ®çäžçŽç©ã¯
1150â1250âã§å®å šã«é€å»ããããšããããšãè¿°
ã¹ãããŠãããç¹ã«ã1200âã§ïŒâ15åéå ç±ã
ãããšã99.1â99.6ïŒ ã®é žå第äºã¯ãã ãš50â
100ppmã®ç¡«é»ãå«æããçæç©ãããããããš
ããããšãè¿°ã¹ãããŠãããããã¯ããã¡ããã
å°èŠæš¡ãªè£ 眮ãçšããå®éšå®€ã§ã®æ¹æ³ã§ããããŸ
ãå ç±ãå®æœããæ¹æ³ã¯é瀺ãããŠãããããã€
äœæµé»å«æé žå第äºã¯ãã ã補é ã§ãããå®éå
é¡ããã«ãã€ãŠåŸãããäœç¡«é»å«æå€ãç¶æãã€
ã€å·¥æ¥çèŠæš¡ã«ãŸã§èŠæš¡ãæ¡å€§ããããšã¯äžå¯èœ
ã§ããããšãå®èšŒãããŠãããããªä»ã®å°èŠæš¡ãª
æ¹æ³ãšåæ§ã«åæ¥çã«ã¿ãŠéèŠã§ã¯ãªãã ä»ã®å°èŠæš¡æ¹æ³ã¯ç±³åœç¹èš±æ现æžç¬¬3723611å·
ããã³è±åœç¹èš±ç¬¬1498300å·ã«èšèŒãããŠããã
ãããã«ãããŠã¯ã900â1600âã®æž©åºŠã§0.1â10
ç§ã®æ»çæéã§æ°ŽçŽ é°å²æ°äžã§éå å¡ãä»ããŠé
ã¯ãã é žãããªãŠã ãåŽå°ããéžæçã«åæ§ã®æž©
床ã§åæ§ã®çãäŒæ¢æéãèšããåŸããã®çµæç
ããé žå第äºã¯ãã ãéããããšã«ãã€ãŠã
50ppm以äžã®ç¡«é»å«æéãéæããããšãã§ã
ããšããããšãè¿°ã¹ãããŠãããããããªããã
ã®æ¹æ³ããŸãå°èŠæš¡ãªæ¹æ³ã§ãã€ãŠãèšè¿°ãããŠ
ããæé«ã®è£œé çã¯ïŒKgïŒhrã§ãããããã¯åŸ®ç²
åç¶äºã¯ãã é žå¡©ãã¹ãã¬ãŒå¡ãæ°ŽçŽ ã®äŸçµŠãã
ãã³ã¢ã«ã«ãªæ§éå¢ãå¿ èŠãšããŠããããããã®
çš®ã ã®æ¡ä»¶ãçµåããŠãã®æ¹æ³ãåæ¥çèŠå°ãã
åŠå³ã®ãªããã®ã«ããŠããããããŠæã ã¯ããã
åæ¥äžçšããããŠãããšããããšãç¥ããªãã ãœé£ç¹èš±ç¬¬171118å·ã¯ãé žåã¯ãã ã¯ãããã
粟補ããããã«ãããšãã°1400âã§å転çå ã§ã®
ç±åŠçãæœãããåŸããŸããã®æçµçæç©ã¯100
â110ppmã®ç¡«é»å«æéããã€ãšããããšãèšèŒ
ããŠãããåŸã€ãŠããã®ç¡«é»å«æéã¯å®éåžžèŠç
ãªè£œé æ¹æ³ã«ããçŸåšåæ¥äžå©çšã§ãããã®ãã
ãã¯ããã«é«ãã è±åœç¹èš±æ现æžç¬¬962193å·ã«ã¯ãããšãã°éã¯
ãã é žã¢ã³ã¢ããŠã ã®å解ã«ãã補é ãããåŸã
å¯èæ§åºåœ¢åã®ååšäžã§é žå第äºã¯ãã ãå ç±ã
ãããšã«ããé žå第äºã¯ãã ã®åµ©å¯åºŠãå¢å€§ãã
æ¹æ³ãèšèŒãããŠããããã®å Žåã®å¥œãŸãã枩床
ã¯200â1200âïŒããé«ã枩床ãèšèŒãããŠãã
ãïŒã§ããããã®å®æœäŸã®ãã¹ãŠã«ãããŠã¯800
âè¥ããã¯850âã§ããããŸãããå Žåã«ãããŠ
ã¯ã350âãšããäœã枩床ã§ãååã§ããããšã
èšèŒãããŠãããæ·»å ãããå¯èæ§åºåœ¢åã®éã¯
奜ãŸããã¯0.1âïŒïŒ ã§ãããããã®å€ä»¥äžã®æ¿
床ã決ããŠå¥œãŸãããªããšããèš³ã§ã¯ãªããšãã
ããšãèšèŒãããŠããããã®æ现æžã«ãããŠã¯ã
補é ãããé žå第äºã¯ãã ãå¶éåŠäžçšãããåŸ
ããããªé«å質ã®é žå第äºã¯ãã ãšããŠæå³ãã
ããã®ã§ãããšãã瀺åã¯ãªãããŸãçæç©ã®ç¡«
é»å«æéã«ã€ããŠã®ãããªãèšè¿°ããªãã ç±³åœç¹èš±æ现æžç¬¬2209907å·ã«ãããŠã¯ãç¡«é»
ããã³ç¡«åãããªãŠã ã®æ°Žæ§ã¢ã«ã«ãªä¹³æ¿æ¶²ã«ã
ãéšåçã«é žæ§åãããã¯ãã é žå¡©æº¶æ¶²ã®éå ãš
ããããšãå å«ããé žå第äºã¯ãã é¡æã®è£œé æ¹
æ³ãèšèŒãããŠãããæåã«çæãããæ°Žåé žå
第äºã¯ãã ã¯ã¢ã«ã«ãªååç©ãé€å»ããããåŠç
ããã次ãã§2300â2500ãã®æž©åºŠã§ããã©ã·ãŠçŒ
æã«ã»ãŒè¿ãå¶éæéãšããŠèšè¿°ãããŠããæé
ã§ãçå ã«ãããŠãã°ããå ç±ãããããã®å ç±
ã®éã«ãçæç©äžã«çæããããããªãå¡©åºæ§ç¡«
é žå¡©ããã¡ããå解ããããããã®çŒæããã³å
解ãäœãæºäœã®äžæº¶æ§ç¡«é»ãçµæãšããŠãããã
ãšããããšã¯ç€ºåãããŠããªãããããªããã°æ
æã®çšèãªé žåç©ãããæ¿å¯ãªãã®ã«ãªãããã
ããªããšããããšãããææããã°ããå ç±ãã
ããšããã³éç±ãããã¯é·æéã®å ç±ãé¿ããã
ãšãéèŠã§ãããšããããšãèšèŒãããŠããã ãããã€ãŠãåèšæè¡ã®äžè¬çãªäœçœ®ä»ããšã
ãŠã¯ãå¶éåŠäžå©çšãåŸãå質ã®é žå第äºã¯ãã
ã¯ãéåžžãå¡©åãããªãŠã ã®ååšäžã§ã®éã¯ãã
é žã¢ã³ã¢ããŠã ã®èšè¿°ããããããªå解ã«ãã補
é ããïŒç¡«é žã¢ã³ã¢ããŠã ãééã®éã¯ãã é žå¡©
ãšãšãã«äœ¿çšãåŸããããããªããïŒãçŸåšå¶é
åŠäžæçšãªããããã¯å¥ã®åéã«ãããŠæçšãªã
é žå第äºã¯ãã ã«ãããŠåæ¥çèŠå°ããå©çšãåŸ
ãæäœã®ç¡«é»å«æéã¯60â70ppmã§ããããŸã
ããäœãç¡«é»å«æéã®ãã®ã補é ããããšã匷ã
èŠæãããŠã¯ããããå®éã®ãšãããåèšããã
ããªäŸå€çãªãã®ãé€ããŠã¯èª°ãå·¥æ¥çãªèŠæš¡ã§
ããã補é ããè ã¯ããªããšããããšããã¹ãŠã®
人ãèªèããŠãããšããããšããããããããã
äœãç¡«é»å«æéãããããããã®çš®ã ã®çè«çæ¹
æ³ãç¥ãããŠãããããšãã°ç±³åœç¹èš±ç¬¬3723611
å·ã§ã¯ãããŒã¿ãªãŒãã«ã³ã«ããçŒæãç¥ãããŠ
ããããããã¯100ppmã®ç¡«é»å«æéã®ãã®ã補
é ããããšãç®çãšããŠããã ãã§ããããŸãè±
åœç¹èš±æ现æžç¬¬962193å·ã«èšèŒãããŠããããã«
éã¯ãã é žã¢ã³ã¢ããŠã ã®å解çæç©ã®åŸå ç±ã
ç¥ãããŠããã ãã®æè¡èæ¯ã«å¯ŸããŠãç°¡åãªè£ 眮ãçšããŠã
ããŸã§éåžžå·¥æ¥çã«å©çšãããŠãããã®ãããã
ãäœãäžæº¶æ§ç¡«é»äžçŽç©æºäœããã€å¶éåŠäžå©çš
ã§ããå質ã®é žå第äºã¯ãã ãå·¥æ¥çèŠæš¡ã§è£œé
ããããã®å·¥æ¥çæ¹æ³ãæäŸããããšãæã ã®ç®
çãšãªã€ãŠããã æã ã¯ãçŒæã1100â以äžã®æž©åºŠã§é©æ£ãªæé
è¡ãªããããã€ãŸãçŒæãããçæç©ãããšãã°
å¯èæ§å¡©ã®ãããªæ°Žæº¶æ§ç©è³ªã0.1ãã50ééïŒ
ã®ç¯å²ã§å«ããªãã°ãé žå第äºã¯ãã è¥ããã¯é ž
å第äºã¯ãã ãçæããäžæº¶æ§ã¯ãã ååç©ãå«
æããé©åœãªåºäœçæç©ãçŒæããããšã«ãã€
ãŠãææã®ç®çã容æã«éæããããšããããšã
ããã«è³ã€ãŠæå€ã«ãçºèŠããã å³ã¡ãæ¬çºæã¯ãé žå第äºã¯ãã ãšãå°ãªããš
ã60ppmã®æ°Žã«äžæº¶æ§ã®ç¡«é»ãšã氎溶æ§ç©è³ª
ãšãä»»ææåã§ããçŒæäžã«æ®çºããç©è³ªãšãã
æãåºäœçæç©ãããããã¯çŒæäžã«å解ããŠå
èšåºäœçæç©ãçæãããããªç±å解æ§çæç©
ãšãä»»ææåã§ããæ®çºæ§ç©è³ªãšããæãåºäœç
æç©ãçå ã«ãããŠçŒæãã次ãã§ãæ°ŽæŽããã
ãšãããªã40ppmã®ç¡«é»ã§æ±æãããé žå第äº
ã¯ãã ã®è£œé æ¹æ³ã«ãããŠã該åºäœçæç©ã®æ°Žæº¶
æ§ç©è³ªãé žå第äºã¯ãã ã®0.1ãã50wtïŒ ã§ã
ãããã€è©²çŒæã1100â以äžã®æž©åºŠã§10åé以
äžãäžæº¶æ§ç¡«é»å«æéã40ppm以äžã«ãŸã§æžå°
ãããŸã§å®æœãããããšãç¹åŸŽãšãã40ppm以
äžã®ç¡«é»ã§æ±æãããé žå第äºã¯ãã ã®è£œé æ¹æ³
ã§ããã ãã®æ¹æ³ã¯ãç¡«é»å«æéãããšãã°10ppm以
äžãšããéåžžã«äœãå€ã«ãŸã§ãæŽã«ã¯ç¡«é»ã®å«æ
éãå³å¯ã«æž¬å®ã§ããªãã»ã©äœãå€ã«ãŸã§äžãã
ããå®æœããããšãå¯èœã§ããããã©ãããã®å¥œ
ãŸããæäžéã¯5ppm以äžã§ããããŸã奜ãŸãã
ç¯å²ãšããŠã¯ïŒâ30ppmã§ããã ããã«ãã€ãŠç¡«é»å«æéãåèšã®å€ã«ãŸã§æžå°
ããããšããéã¯åºçºããã³ææã®æçµå€ã®äž¡æ¹
ã«äŸåããã ãããææã®æçµå€ã¯åžžã«å°ãªããš
ã20ppmã§ããã ããããéäŸãåºçºå€ã¯
50ppm以äžãå€ãã®å Žåã¯100ppm以äžã§ããã
ããšãã°å¥œãŸããæ¹æ³ã«ãããŠã¯ã200ppm以
äžãããšãã°200â400ppmã®ç¡«é»ã§æ±æããã
é žå第äºã¯ãã ã¯40ppm以äžã®ç¡«é»å«æå€ã«ãŸ
ã§ç²Ÿè£œããããããããªãããæ¬æ¹æ³ã®ç¹ã«åªã
ããšããã¯ãç°¡åãªçŒææ¹æ³ã«ãããããšãã°
1000ppm以äžã®é«ãäžæº¶æ§ç¡«é»ãå«ãçæç©
ã§ãããã¯ãããšãã°ãéå å€ãšããŠã®ç¡«é»ã®äœ¿
çšã«ãã€ãŠããçæãããŠãããŸããªããšããã
ãããã¯ãŸãããèªäœãäžæº¶æ§ç¡«é žç¬¬äºã¯ãã ã§
ãã€ãŠãããŸããªããšãããããªçæç©ããäœã
ç¡«é»å«æéã®å¶éåŠäžå©çšãåŸããããªé«å質ã®
é žå第äºã¯ãã ã補é ããããšãå¯èœã§ãããšã
ãããšã§ããã ãããã®ããããã¯é«ãåæäžæº¶æ§ç¡«é»å«æé
ã«ããããããã倧èŠæš¡ãªå·¥æ¥ççŒææè¡ã«ãã
ææã®çŒæãå®æœããããšããã³ææã®äœç¡«é»å«
æéãåŸããããããªçŒææ¡ä»¶ãéžæããããšã¯
容æã§ãããšããããšãããã€ãŠããããããã
ã«ãçŒæã¯éåžžã100KgïŒhr以äžãããšãã°500ä¹
è³1000KgïŒhrãããã¯ãã以äžã®éãéãçãæ
ããçå ã«ãããŠå®æœãããããã®ããã«ããŠã
æ¬æ¹æ³ã¯é žå第äºã¯ãã ã補é ããããã®å€ãã®
æ¹æ³ãšå®¹æã«äž¡ç«ãããã®ã§ããããã€çŸåãã
é žå第äºã¯ãã 補é æ¹æ³ã«ãããæçµæ®µéãšãªã
ãããã®ã§ãããããã¯ãæ¯èŒççŽç²ãªå¶éåŠäž
å©çšãåŸãå質ã®çæç©ã補é ãããã工倫ãã
ãæ¹æ³ã«ãã補é ãããçæç©ã®å質ãæ¹åãã
ã®ã«çšãããããããã¯ãŸããããšãã°çš®ã ã®é¡
æãšããŠäœ¿çšããããã®ãå¶éåŠäžå©çšã§ããã
ããªå質ã«ãŸã§æ¹åããããã«çšããããããã®
æçµçŽç²çæç©ã¯æ®éå¶éåŠäžäœ¿çšããããã®ã§
ããããããã¯ãŸãä»ã®çšéã«ãé©çšããåŸãã
ã®ã§ããã çã¯ãããšãã°æµåå±€çã§ãã€ãŠãããããæ¬
æ¹æ³ã®ç¹ã«åªå©ãªç¹ã¯ãçã¯éåžžã«ç°¡åãªæ§é ã®
ãã®ã§ãããšããããšã§ããã奜ãŸããã¯ç¬¬äºã¯
ãã çæç©ã®çŒæã«æãäžè¬çã«çšããããçã
ã€ãŸãããŒã¿ãªãŒãã«ã³ã䜿çšããããšããããš
ã§ããã䜿çšãåŸãä»ã®çãšããŠã¯å転åæ¿åœ¢
çãå転çããããã¯ãŸãåºå®çãããããã
ãããããã¯æŠããŠçµæžçèŠå°ãã奜ãŸãããšã¯
èšããªãã代衚çãªããŒã¿ãªãŒãã«ã³æ¹æ³ã«ãã
ãŠã¯ãããšãã°200â以äžã§å€ãã®å Žå50â以äž
ã§ããåšå²æž©åºŠã«è¿ã枩床ããã€çŒæãããã¹ã
åºäœçæç©ã¯ãé°å²æ°æž©åºŠãããšãã°500âã§ã
ããããªããŒã¿ãªãŒãã«ã³ã®äœæž©ç«¯éšãžãšéå ¥ã
ãã次ãã§çå ãé«æž©ç«¯éšãžãšéãããçãéé
ããé床ããã³å ç±é床ã¯ãçŒæãããææãç
å ã«ãããŠ10åé以äž1100â以äžã®æž©åºŠãç¹ã«å¥œ
ãŸããã¯å°ãªããšã10åéææã®æé«æž©åºŠã«ä¿æ
ãããããã«å®ããããããã®çŒæ枩床ãã€ãŸã
æé«æž©åºŠã¯éäŸ1600â以äžãé垞奜ãŸããã¯1150
â1350âã®ç¯å²ã§ããã çŒæã¯ãéåžžãçæç©ã1100â以äžã®æž©åºŠãå€
ãã®å Žåæé«æž©åºŠã§å°ãªããšã15åéãïŒâ10æ
éãšãããããªé·æéã§ããããéåžžïŒæéã§å
åã§ãããç¶æããããšããæ¡ä»¶äžã§å®æœãã
ããç¹ã«15åããïŒæéãçŒææéãšããŠã¯éäŸ
奜ãŸããã1200â1300âã®æž©åºŠã§0.5âïŒæéã
äžè¬çã«èšã€ãŠå€ãã®çæç©ã«ãšã€ãŠååãªãã®
ã§ãããããããªãããããªãç¹å®ã®çæç©ã«ãš
ã€ãŠãããã€ãããªãç¹å®ã®çã«ãšã€ãŠãæé©æž©
床ã¯çã®çš®é¡ããã³åºçºäžŠã³ã«ææã®æçµç¡«é»å«
æéã®äž¡æ¹ã«äŸåãããã®ã§ããããã€ãŸããã
ãäœã枩床ããã³ïŒãããã¯ããé«ãåæç¡«é»å«
æéããã³ïŒãããã¯ããäœãæçµç¡«é»å«æéã«
ãããŠèŠæ±ããããããªããé·ãæéã䌎ã€ãŠã
çã®æž©åºŠã«äŸåãããã®ã§ãããšããããšãèªè
ãããã¹ãã§ããã æ®éãç¡«é»å«æéãæžå°ããããã«éžæããã
枩床ãšæéã®çµã¿åãã¯ãèªåçã«ããçšåºŠã®ç²
åŸã®æé·ããããããããããçæç©ã®å¯åºŠã®å¢
倧ããããããšãããããªãã®ã§ãããããšã
ã°ãæ¬æ¹æ³å®æœäžã«ãèŠæãæ¯éïŒåµ©å¯åºŠïŒã¯
0.1ã0.2ãããã¯ãã以äžå¢å€§ãããããããã
ãŸãæçµçæç©ã¯ãå¶éåŠäžçšããããçæç©ã«
ãšã€ãŠä»£è¡šçãªãããã¯å€ãã®å Žåæšæºãããã
ãé«ãèŠæãæ¯éãæãããããããªããããšã
ã°ãéå å¡«ææã®èŠæãæ¯éã¯éåžž1.25以äžã§ã
ãããããäžå®å€ã«ãŸã§å å¡«ãããæã«ãã®èŠæ
ãæ¯éã¯éåžžå°ãªããšã1.8ãå€ãã®å Žåå°ãªã
ãšãïŒä»¥äžã§ãããéåžžã«å°ããªç²åŸã¯é¡æãšã
ãŠçšãããããã®ã«ãããŠã¯éèŠã§ããã®ã«å¯Ÿã
ãŠãå¶éåŠäžã«ãããŠçšãããããã®ã«ãšã€ãŠã¯
ãã倧ããªç²åŸã®ãã®ããã°ãã°æãŸããã æ¬çºæã®äžã€ã®æ¹æ³ã«ãããŠã¯ãæ±æäžçŽç©ã¯
å¥ãšããŠå®è³ªäžå¯èæ§å¡©ããã³ä»ã®æ°Žæº¶æ§ç©è³ªã
å«ãã§ããªãé žå第äºã¯ãã ãçŒæãããããã
ããªãããæ¬çºæã§ã¯ãçŒæããç©è³ªäžã®æ°Žæº¶æ§
ç©è³ªïŒå¯èæ§å¡©ïŒã®å«æéãæ¬çºæã®ç¯å²ã«ç¹å®
ããããšã«ãã奜ãŸããå¹æãåŸãããããšãã
ã®ã¯ãã®æ°Žæº¶æ§ç©è³ªïŒå¯èæ§å¡©ïŒã®ååšã«ããç¡«
é»ã®é€å»ãä¿é²ããããšãã§ãããã®çµæçŒæã¯
æå®ã®ç¡«é»é€å»åºŠãåŸãã«ããã€ãŠããäœã枩床
ãããã¯ããçãæéã§å®æœããããšãã§ãããŸ
ãå ããã«ç²åã®æé·ãçµæãšããŠããããããš
ãã§ãããã®çµæãã倧ããªç²åŸã®çæç©ãåŸã
ããããã§ãããæ®éããããã®å©çãåŸããã
ã«ã¯0.1âïŒïŒ ã®å¯èæ§å¡©ã§ååã§ãããããã
ãªãããããå Žåã«ãããŠã¯ãå€éã®å¯èæ§å¡©ã
ãšãã€ãŠã50ïŒ ãè¶ããŠã¯ãªããã奜ãŸããã¯é ž
å第äºã¯ãã ã®ééã«å¯ŸããŠ30ïŒ ãè¶ããªãçšåºŠ
ã®å¯èæ§å¡©ãå«ãæ··åç©ã«ã€ããŠçŒæãå®æœãã
ããšã奜éœåã§ããããšãããããããå¯èæ§å¡©
ã®éã50ïŒ ãè¶ãããšãçŒæã«çšããããçå ã§
蚱容ããããã¹ã©ã°çæãçãããã®çæããã¹
ã©ã°ã¯ãéäŸæã ãããèœãšããããããã¯ãã
èœãšãããšã«ãã€ãŠç©ççã«é€å»ãããã°ãªããª
ãããŸãã氎溶æ§ç©è³ªã®éã0.1ïŒ æªæºã§ãããš
ç¡«é»å«æéãéã«å¢å ããŠå¥œãŸãããªãïŒå®æœäŸ
ïŒåç §ïŒã çŒæãããåºäœçæç©ã¯éåžžäžæº¶æ§ã¯ãã åå
ç©ããæãããŸãéåžžçæç©äžã®å šã¯ãã ã¯äžæº¶
æ§ã¯ãã ååç©ã®æ ããªããŠãããäžæº¶æ§ã¯ãã
ååç©ã¯é žå第äºã¯ãã ã§ãã€ãŠããããããã
ã¯ãŸãçŒæäžã«é žå第äºã¯ãã ãçæããäžã€ã
ããã¯ãã以äžã®ååç©ã§ãã€ãŠããããçŒæã
ããåºäœçæç©ã®äžæº¶æ§ã¯ãã ååç©ã¯éåžžæå
ã«å®è³ªçãªéã®æ°Žæº¶æ§å¯èæ§å¡©è¥ããã¯ä»ã®åå
ç©ãšã®æ··åç©ãšããŠè£œé ãããããåè¿°ããåŠ
ãããã®é åã®æ··åç©äžã«ååšããããããã¯ãŸ
ãçŒæäžã«çæãããå€éã®æ°Žèæ§å¯èæ§å¡©ãã
ãã¯ä»ã®ååç©ã®ååšã¯æãŸãããã®ã§ã¯ãªãã
50ïŒ ä»¥äžãéåžžã¯ïŒïŒ 以äžã®å¯æº¶æ§ååç©ãšãã€
ããã«äžæº¶æ§ã¯ãã ååç©ãæ®ãããã«çŒæã®å
ã«æ··åç©ããå°ãªããšã氎溶æ§ååç©ã®ã»ãšãã©
ãåé¢ãããã代衚çãªå¯æº¶æ§ååç©ãšããŠã¯ã
ããšãã°å¡©åãããªãŠã ãç¡«é žãããªãŠã ããã
ã³ãããã«å¯Ÿå¿ããçé žå¡©ãããªç¡«é žå¡©ããã³æ°Ž
é žåç©ãªã©ã®ã¢ã«ã«ãªéå±ããã²ã³åç©ããã³ç¡«
é žå¡©ã®ãããªå¯èæ§å¡©ããããããã äžæº¶æ§ã¯ãã ååç©ãšå¯æº¶æ§äžã€å¯èæ§å¡©ã®æ··
åç©ã¯æååºäœæ°Žæº¶æ§ååç©ãå«ãåºäœæ··åç©ãš
ããŠçæãããŠããããããã«ãããŠäžæº¶æ§ã¯ã
ã ååç©ããã®åºäœæ°Žæº¶æ§ååç©ã®åé¢ã¯æ°ŽæŽã«
ããå®æœãããããã®ã§ããã æ··åç©äžã«ååšãããã€æ¬çºæã«ãããŠçŒæã
ããäžæº¶æ§ã¯ãã ååç©ã¯ãé žå第äºã¯ãã ãæ°Ž
åé žåã¯ãã ãã¯ãã é žç¬¬äºã¯ãã ããã³äžæº¶æ§
å¡©åºæ§ç¡«é žç¬¬äºã¯ãã ãå«ãã§ããã 氎溶æ§ååç©ãšé žå第äºã¯ãã ã®åºäœæ··åç©
ã¯ã以äžã«ãã詳现ã«èšèŒãããããã«ãå¡©åã
ããªãŠã ãããã¯ç¡«é žãããªãŠã ã®ååšäžã§éã¯
ãã é žã¢ã³ã¢ããŠã ãçŒæããããšã«ããåŸãã
ãšãã§ããã é žå第äºã¯ãã ãšæ°ŽæŽã«ããé€å»ãåŸã氎溶æ§
å¡©ã®å¥ã®åºäœæ··åç©ã¯ãéã¯ãã é žãããªãŠã ãš
éã¯ãã é žç¡«é»ãããã¯éã¯ãã é žãããªãŠã ã
ãæã也æ§æ··åç©ããã³æšçãããå±ãããã¯æ®¿
ç²ã®ãããªççŽ è³ªéå å€ãçŒæããããšã«ããåŸ
ããããæ··åç©ã¯çŒæäžçŒç±ãããã äžæº¶æ§ã¯ãã ååç©ãšæ°ŽæŽã«ããé€å»ããããš
ãã§ããå¯æº¶æ§å¡©ã®å¥ã®åºäœæ··åç©ã¯ãè€åçµæ
ç©ã§ããäžæº¶æ§ã®å¡©åºæ§ç¡«é žç¬¬äºã¯ãã ãçæã
ãããç¡«é žç¬¬äºã¯ãã ã®å¡©åºæ§åºŠãé«ãããããª
æ¡ä»¶äžã§æ°Žæº¶æ§ç¡«é žç¬¬äºã¯ãã ãšæ°Žæº¶æ§å¡©ãçŒæ
ããããšã«ãã€ãŠåŸããããç¡«é žç¬¬äºã¯ãã ãš
å¡©ãéäŸãç¡«é žãããªãŠã ã®åæ氎溶æ§æ··åç©
ã¯ãããšãã°éã¯ãã é žãããªãŠã ã®æ°Žæº¶æ¶²ãäº
é žåç¡«é»éå ããããšã«ãã€ãŠè£œé ããåŸãå¡©ãš
ç¡«é žç¬¬äºã¯ãã ã®æº¶æ¶²ãåŽé§ä¹Ÿç¥ããããšã«ãã€
ãŠè£œé ããããšãã§ããã 氎溶æ§å¡©ãšäžæº¶æ§ã¯ãã ååç©ã®æ··åç©ã¯å¯æº¶
æ§ååç©ãå«ã溶液ããäžæº¶æ§ã®æ°Žåé žå第äºã¯
ãã ãæ²æ®¿ãããããšã«ããåŸããããã®å Žåã«
ã¯æ°Žåé žå第äºã¯ãã ã¯æ¿Ÿéã«ããå°ãªããšãæ°Ž
溶æ§ååç©ã®ã»ãšãã©ããåé¢ãããããã®çµæ
çããæ²æ®¿ç©ã¯ä»»æã«æ°ŽæŽãããããã®äžæº¶æ§æ°Ž
åé žå第äºã¯ãã ã®æ²æ®¿ç©ã¯éã¯ãã é žãããªãŠ
ã ãããã¯ã¯ãã é žãããªãŠã ãéå ããããšã
ãæãæ¹æ³ã«ãã補é ãããããã®ã§ãããããš
ãã°ãã¯ãã é žãããªãŠã è¥ããã¯éã¯ãã é žã
ããªãŠã ã¯æ°Žæº¶æ¶²äžã§ç¡«é»ã«ããéå ãããŠãã
ãªç¡«é žãããªãŠã ãæ°Žé žåãããªãŠã ããããã¯
ç¡«é žãããªãŠã ãå«ã溶液äžã§æ°Žåé žå第äºã¯ã
ã ãçæãããå¥ã®æ¹æ³ã«ãããŠã¯ãéã¯ãã é ž
ãããªãŠã ã¯æ°Žæº¶æ¶²äžã§ææ©éå å€ã«ããéå ã
ããã代衚çãªéå å€ãšããŠã¯ããã¿ãªã³ååç©
ã®ãããªçåæ°ŽçŽ ããã³ãã®èªå°äœã䞊ã³ã«ç³ã¿
ã€ãããã¯ã°ã«ã³ãŒã¹ã®ãããªçæ°Žåç©ãããã
ãããã®å Žåã氎溶æ§å¡©ã¯çé žãããªãŠã ããã
ã¯éçé žãããªãŠã ãå«ãããã®éå ã¯éåžžãªãŒ
ãã¯ã¬ãŒãå ã«ãããŠé«ãå§åããã³é«ã枩床ãš
ããæ¡ä»¶äžã«ãããŠæãåªå©ã«å®æœããããå¥ã®
æ¹æ³ã«ãããŠã¯ãéã¯ãã é žãããªãŠã ã¯é žæ§æ°Ž
溶液äžã§ææ©éå å€ïŒããšãã°ããã«ãšã³è¥ãã
ã¯ã¢ã³ãã©ã»ã³ã®ãããªçåæ°ŽçŽ ã殿ç²è¥ããã¯
ã°ã«ã³ãŒã¹ã®ãããªçæ°Žåç©ããããã¯å®éäžã
ã¹ãŠã®é©åœãªææ©éå å€ïŒã«ããéå ããã溶å
ç¡«é žç¬¬äºã¯ãã ãšæº¶è§£å¡©ã®æº¶æ¶²ãçæããã¢ã«ã«
ãªã®æ·»å ã«ããæ°Žåé žå第äºã¯ãã ãæ²æ®¿ããã æ¬çºæã¯ãç¹ã«ãéã¯ãã é žã¢ã³ã¢ããŠã ã®å
解ã«ããé žå第äºã¯ãã ã®è£œé ã«é©çšãããæ
ã«ãè©äŸ¡ããããã®ã§ãããåè¿°ããããããªåŸ
æ¥ã®æ¹æ³ã«ãããŠã¯ãéã¯ãã é žã¢ã³ã¢ããŠã ã®
ç±å解ã«ããæåã«åŸãããé žå第äºã¯ãã çæ
ç©ã¯ååšããé žå第äºã¯ãã ã«å¯ŸããŠçŽ70â100
ééïŒ ã®å¯èæ§å¡©ïŒå¡©åãããªãŠã è¥ããã¯ç¡«é ž
ãããªãŠã ïŒãå«ãã§ããããã®ãããªçæç©
ã¯ãé·æéã®é«æž©çŒæã蚱容ããããã¹ã©ã°çæ
ããããããšããããšãããæ¬çºæã«ããããã
ãªé«æž©çŒæãæœããããšãã§ããªãããã®ããš
ã¯ãæ¬çºæã«ãããé«æž©çŒæãããšãã°åæ¿çã
ããŒã¿ãªãŒãã«ã³ã®ãããªç§»ååŒçå ã«ãããŠå®
æœãããå Žåã«ã¯ç¹æã®åé¡ãåŒãèµ·ããã ã
ãã æ¬çºæã«ããäžã€ã®æ¹æ³ã«ãããŠã¯ãå°ãªããš
ãé žå第äºã¯ãã ã®äžéšåã¯æ¬çºæã®é«æž©çŒæã
å®æœãããã¹ãçãšåãçå ã§ã®éã¯ãã é žã¢ã³
ã¢ããŠã ã®å解ã«ãã補é ãããããã®ãããªäŸ
絊ææãçšããŠãæ¬çºæã«ãããŠçŒæã«ãã€ãŠè£œ
é ãããé žå第äºã¯ãã ã¯ãçå ã«ãããŠå¯èæ§
å¡©ã®éãçå ã«ãããé žå第äºã¯ãã ã®å šéé
ïŒã€ãŸãå埪ç°é žåç©ãã©ã¹éã¯ãã é žããçæ
ãããé žåç©ïŒã«å¯ŸããŠ50ïŒ ä»¥äžã奜ãŸããã¯30
ïŒ ä»¥äžã«ãŸã§æžããã®ã«ååãªéã§çå ãžãšå埪
ç°ãããã æ¬çºæãå®æœããããã®å¥œé©ãªæ¹æ³ã¯ãæ°Žãé
ã¯ãã é žã¢ã³ã¢ããŠã ãåã³å¡©åãããªãŠã è¥ã
ãã¯ç¡«é žãããªãŠã ã®æ··åç©ãéã¯ãã é žã¢ã³ã¢
ããŠã ã®å解枩床以äžã§ãã€åèšæ··åç©ã®ã¹ã©ã°
çæ枩床以äžã®æž©åºŠã§å ç±ããåå¿çæç©ãæ°ŽæŽ
ããŠå°ãªããšãå¡©åãããªãŠã è¥ããã¯ç¡«é žãã
ãªãŠã ã®å€§éšåãé€å»ãã次ãã§ãã®çµæçæã
ããæ°Žã«äžæº¶æ§ã®ç¡«é»ã«ããæ±æãããé žå第äº
ã¯ãã ãé«æž©ãã€åèšãããããªæéã§çŒæãã
æ°Žã«äžæº¶æ§ã®ç¡«é»ãææã®å€ã«ãŸã§æžãããšãã
ããšããæ§æãããŠãããéåžžãçŒæãããææ
ã¯æ°ŽæŽããã次ãã§ä¹Ÿç¥ãããã éã¯ãã é žã¢ã³ã¢ããŠã ãšå¡©åãããªãŠã è¥ã
ãã¯ç¡«é žãããªãŠã ã®æ··åç©ã¯ãéåžžãæ°Žã®ååš
äžã®éã¯ãã é žãããªãŠã ãšå¡©åã¢ã³ã¢ããŠã è¥
ããã¯ç¡«é žã¢ã³ã¢ããŠã ã®éã®è€å解ã«ãã€ãŠç
æãããããã®æ··åç©ã¯ããããé©å®ã®æ¹æ³ã«ã
ã補é ãããããã®ã§ãããããšãã°ãåºäœã¢ã³
ã¢ããŠã å¡©ããä»»æã«å°éã®æ·»å æ°Žã®ååšäžã§ã
çµæ¶æ§éã¯ãã é žãããªãŠã äºæ°Žåç©ãšæ··åãã
ãŠãããããããã¯ã¢ã³ã¢ããŠã å¡©ã®æ¿çž®æ¶²ãåº
äœç¶æ ã®äºã¯ãã é žå¡©ãšæ··åãããŠãããããã
ããªãããéäŸãåºäœã¢ã³ã¢ããŠã å¡©ã¯ãããšã
ã°ãªããã«åœã900ã°ã©ã 以äžã奜ãŸããã¯1500
ã°ã©ã 以äžè¥ããã¯ã¡ããã©1700ã°ã©ã ã®éã¯ã
ã é žãããªãŠã äºæ°Žåç©ãå«ãéã¯ãã é žãããª
ãŠã ã®æ¿çž®æ¶²ãšæ··åããããã¢ã³ã¢ããŠã å¡©ã®é
ã¯ãããããäžæ¹ã奜ãŸããã¯ã¢ã³ã¢ããŠã ã®é
ã®ã»ããå€ãæ¹ãæãŸãããšããããããäºå®äž
éã¯ãã ãããªãŠã ãšååŠéè«çã«åœéã§ããã¹
ãã§ãããããšãã°ç¡«é žã¢ã³ã¢ããŠã ã¯çŽïŒïŒ ãŸ
ã§ééã§ãã€ãŠããããããããªãããããšãã°
ãã€ãç¹èš±æ现æžç¬¬2635086å·ã«èšèŒãããŠãã
ããã«ãééã®éã¯ãã é žãããªãŠã ãçšããã
ãŠããããã¢ã³ã¢ããŠã å¡©ãå¡©åã¢ã³ã¢ããŠã ã§
ããå Žåã«ã¯ãè€å解åå¿çæç©ã®çŒæ枩床ã¯ã
奜ãŸããã¯ã¹ã©ã°çæã®å±éºãæå°é床ã«ãšã©ã
ãããã«800âè¥ããã¯850â以äžã«ç¶æãããã
ãŸãã¢ã³ã¢ããŠã å¡©ãç¡«é žã¢ã³ã¢ããŠã ã§ããå Ž
åã¯ã900âãŸã§ããããã¯æã«ã¯950â1000âãŸ
ã§ã®çŒæ枩床ã§ãæºè¶³ã®ãããã®ã§ããã å€ãã®å Žåã700â900âãããšãã°750â800â
ã®æž©åºŠã§å ç±ããããšã«ããç±å解ãçãããã
ãšããããšã奜éœåã§ããããæ¬çºæã®å©ç¹ã¯ã
æçµçŒæå·¥çšã«ãããŠè£œé ãããçæç©ã®å質ã«
äžå©ãªåœ±é¿ãäžããããšãªãããäœã枩床ã§å解
ãå®æœã§ãããšããããšã§ãããããšãã°ãå解
250âè¥ããã¯300âãã700âãŸã§ãããšãã°çŽ
600âã®æž©åºŠã§å®æœããããšãã§ããããã®ç±å
解ã¯ãããšãã°ããŒã¿ãªãŒãã«ã³ã®ãããªã©ã®ã
ããªé©åœãªçã«ãããŠãå®æœã§ãããŸãå®å šãªå
解ãçããããéžæããã枩床ã§ååãªæéãå®
æœãããã代衚çãªç±å解æéã¯15åããïŒæ
éãéåžžçŽ30åã§ããã çãžã®äŸçµŠã¯ã¢ã«ã«ãªéå±äºã¯ãã é žå¡©ãšåºäœ
ã¢ã³ã¢ããŠã å¡©ãé©åœãªæ¹æ³ã§æ¥è§Šãããããšã«
ãããªããããéäŸããããã¯æ¿åãªããŒã¹ãç¶
ã«ãªããŸã§æ··åããã次ãã§çŽæ¥çãžéãããã
ããæ··åãã溶液è¥ããã¯çšèãªããŒã¹ãç¶ã®ã
ã®ãåŸãããã»ã©å€éã®æ°Žã®ååšäžã«è¡ãªããã
ãªãã°ããã®æ°Žã¯ãããšãã°çå ãžã®äŸçµŠã«å ç«
ã€ãŠãããã¯ãã®éã«åŽé§ä¹Ÿç¥ããããšã«ããã
ããªèžçºã«ããé€å»ããããã¢ã³ã¢ããŠã å¡©ã¯ã
ããšãã°50â500ãã¯ãã³ãããã«ã¯çŽ250ãã¯ã
ã³ãšããç²åŸãæããŠãããã奜ãŸããã¯ããã®
ãããªç²åŸã¯ãã¢ã«ã«ãªéå±äºã¯ãã é žå¡©æº¶æ¶²
ããããšãã°90ïŒ ä»¥äžãã€ãŸã1700ïœïŒä»¥äžã®
éã¯ãã é žãããªãŠã äºæ°Žåç©ãå«ããã®ã§ãã
ãããªéåžžã«æ¿çž®ããããã®ã§ããå Žåã«ãçšã
ããããããããªãããç¹ã«ã¢ã³ã¢ããŠã å¡©ãç¡«
é žã¢ã³ã¢ããŠã ã§ããå Žåãªã©ã®ããã«ãæã«
ã¯ãããšãã°æ倧ç²åŸ0.5âïŒããªã¡ãŒãã«ãšã
ããããªãã倧ããªç²åŸã®ã¢ã³ã¢ããŠã å¡©ã䜿çš
ããããšããã奜éœåãªå Žåããããæã ã¯ãã
ããã®ãã倧ããªç²åŸã®ç¡«é žã¢ã³ã¢ããŠã ããã
ãšãã°950ïœïŒã®éã¯ãã é žãããªãŠã äºæ°Žå
ç©ãå«ããããª50â65ïŒ äºã¯ãã é žå¡©æº¶æ¶²ãšäºäž
åã®éçŽ70â以äžã®æž©åºŠã§æ··åãããªãã°ãè€å
解ãäºå®äžå®å šã«è¡ãªãããç¶æ ã®ã¹ã©ãªãŒè¥ã
ãã¯çšèãªããŒã¹ãç¶ã®æ··åç©ãåŸããããšã
ããé©ãã¹ãçºèŠãããããã®æ··åç©ã¯çŽæ¥ããŒ
ã¿ãªãŒãã«ã³ãããã¯å¥ã®çå ãžãšäŸçµŠãããŠã
ãããéã¯ãã é žã¢ã³ã¢ããŠã ã®ç±å解ãããã
ããããããªãããããæãŸãããªããçå ã«ã
ããŠèŠæ±ãããå ç±æž©åºŠã¯ãçå ã«äŸçµŠãããå
ã«åå¿æ··åç©ããæ°Žåãèžçºãããããšã«ãã€ãŠ
æžããããããã®ã§ããã éã¯ãã é žã¢ã³ã¢ããŠã ãå解ããããå ç±ã
ããåŸããã®æ··åç©ã¯å¯æº¶æ§å¡©ãæ¬çºæã®ç¯å²å
ã§ãã»ãŒå®å šã«ãªãããããã«æ°ŽæŽãããŠãã
ãããããã¯ãŸãããã¯éšåçã«ã®ã¿æ°ŽæŽãããŠ
ããããããããªãããååšãããããªãŠã å¡©ã®
å°ãªããšãåå以äžã¯é€å»ãããã°ãªããããŸã
次ã®çå ã§ã®åå ç±äžã«å€å°ã®éã®éã¯ãã é žã
ããªãŠã ãçæãããã®ãé²ãããã«ãããªãŠã
å¡©ã®å°ãªããšãã»ãšãã©å šéšãæœåºããããšã奜
ãŸããã æ°ŽæŽãããçæç©ã¯ãããèŠæ±ããããªãã°ã
é«æž©çŒæãæœãããåã«ä¹Ÿç¥ãããŠãããããã
ã®ããšã¯çµ¶å¯Ÿå¿ èŠãšãããã®ã§ã¯ãªããæ°ŽæŽãã
ãåºåœ¢ç©ãæ¿Ÿéãããã¯é å¿åé¢ããããšã«ãã€
ãŠåŸããã湿ã±ãŒã¯ãçŽæ¥çãžãšéãããŠãã
ãã é«æž©çŒæã®åŸãé žå第äºã¯ãã ã¯éäŸæçµçãª
æ°ŽæŽãæœãããããã®ããšã¯åå ç±å·¥çšã«ãããŠ
çæããããããªãã¯ãã é žãããªãŠã ãšåæ§ã«
ååšãããããããªããããªãå¯æº¶ç¶ç¡«é»ååç©
ããé€å»ãããã®ã§ãããããããªãããåŠçæ¡
件ã«ãããŠãåŸãããé žå第äºã¯ãã ãç¡èŠã§ã
ãã»ã©ã®ããããªéã®æ°Žæº¶æ§ç©è³ªãå«ãããéžæ
ãããŠãããªãã°ãæçµçãªæ°ŽæŽå·¥çšã¯çç¥ãã
ãããæ°ŽæŽãå®æœããããšãæ°ŽæŽãããçæç©ã¯
åŒãç¶ããŠä¹Ÿç¥ãããããå¿ èŠãªãã°ãç²ç ãã
ãã 次ã«ããã€ãã®å®æœäŸã«ããæ¬çºæã説æã
ãã å®æœäŸ ïŒ 113éšã®Na2Cr2O7ãå«ãéã¯ãã é žãããªãŠã
ã®å ç±ããã氎溶液143éšã«å¯ŸããŠãç²åŸ250ãã¯
ãã³ä»¥äžã®ç¡«é žã¢ã³ã¢ããŠã 60éšãæ·»å ãããã
ã®ããšã¯ãäºã¯ãã é žå¡©ã«å¯ŸããååŠéè«çéã
ããå€ãïŒïŒ ééã®ç¡«é žã¢ã³ã¢ããŠã ã®æ·»å ã瀺
ããŠããããã®æ··åç©ã¯ããæ¹æããå·åŽããã
ãšåºåããæ¿åãªããŒã¹ãã圢æãããç²ç ãã
ãåŸããã®åºåœ¢ç©ã¯ãããã«çå ã«ãããŠ600â
ã§30åéå ç±ãããããã®çµæã§ããçæç©ã¯é
åååšããç¡«é žãããªãŠã ã®ã»ãŒ97ïŒ ãé€å»ãã
ããã«æ°ŽæŽãããããã®çµæã氎溶æ§ç©è³ªã®éã¯
é žå第äºã¯ãã ã®çŽ2.8wtïŒ ã§ãã次ãã§ããã¯
也ç¥ããã1150âã§30åéçå ã«ãããŠåå ç±ã
ãããå·åŽãããççŒç©ãæ°ŽæŽãã次ãã§ä¹Ÿç¥ã
ããããšãCr2O399.7ïŒ ããã³S0.004ïŒ ãå«ãé ž
å第äºã¯ãã 65éšãåŸãããã å®æœäŸ ïŒ éã¯ãã é žãããªãŠã ãšç¡«é žã¢ã³ã¢ããŠã ã®å
åŠéè«çåœéæ··åç©ããå®æœäŸïŒã«èšèŒãããæ¹
æ³ã«ãããç¡«é žã¢ã³ã¢ããŠã 60éšãšã119éšã®é
ã¯ãã é žãããªãŠã ãå«ãå ç±ããã氎溶液150
éšãšãã調æŽãããã次ãã§ãç²ç ãããåºåœ¢ç©
ã¯ãããã«çå ã«ãããŠ450âã§30åéå ç±ã
ããæŽã«ååšããç¡«é žãããªãŠã ã®ã»ãŒ95ïŒ ãé€
å»ããã®ã«ååãªæ°Žã§æŽæµãããããã®çµæãæ°Ž
溶æ§ç©è³ªã®éã¯é žå第äºã¯ãã ã®çŽ4.6wtïŒ ã§ã
ãã次ãã§ããã®çæç©ã也ç¥ãã1250âã§ïŒæ
éçå ã§åå ç±ããããã®å·åŽãããççŒç©ãæ°Ž
æŽããã也ç¥ããããšãCr2O399.6ïŒ ããã³
S0.003ïŒ ãå«ãé žå第äºã¯ãã 68éšãååãã
ãã å®æœäŸ ïŒ çŽ950ïœïŒã®éã¯ãã é žãããªãŠã äºæ°Žåç©
ãå«ã60ïŒ éã¯ãã é žãããªãŠã 氎溶液ã105â
ã®æž©åºŠã§ã¹ã¯ãªãŠãŒæ··åæ©äžã«4900KgïŒhrã®å²å
ã§å°å ¥ãããåŸãã1330KgïŒhrã®å²åã§ïŒmm以äž
ã®ç²åŸããã€ç¡«é žã¢ã³ã¢ããŠã çµæ¶ãæ··å ¥ãã
ãããã®æ··åç©ã¯100âã®æž©åºŠã§15åéæ··åæ©äž
ã§æ··åããã次ãã§ãããã®æž©åºŠãçŽ400âã§ã
ãäœæž©ç«¯éšã«ãããŠããŒã¿ãªãŒãã«ã³å ã«ã¹ã©ãª
ãŒãšããŠçŽæ¥é£ç¶çã«æµå ¥ããããããã¯15åé
ç¶æãããçŽ850âãšããæé«æž©åºŠã«ãŸã§çå šäœ
ãéããŠå°ããããã®çµæçããçæç©ã¯2900
KgïŒhrã®å²åã§çããæåºãããããã®çæç©ã¯
æ°Žäžã§æ¥å·ããã次ãã§20âã®æž©åºŠã§åæµæ°ŽæŽã·
ã¹ãã äžã§æ°ŽæŽããããçµæçããçæç©ã¯500
ã1000ppmã®äžæº¶æ§ç¡«é»ããã³çŽ0.1ïŒ ã®å¯èç
ç¡«é žãããªãŠã 䞊ã³ã«ä»ã®å¡©ãå«ãé žå第äºã¯ã
ã ã§æãç«ã€ãŠãããå³ã¡ã氎溶æ§ç©è³ªã¯é žå第
äºã¯ãã ã®çŽ0.1wtïŒ å«æããããããã¯2500
KgïŒhrã®å²åã§ã»ãŒ60ïŒ ã®åºåœ¢åãå«ã湿ããŒã¹
ããšããŠããã®æž©åºŠãçŽ450âã§ããäœæž©ç«¯éšã«
ãããŠ85ãã€ãŒãã®é·ãã®ããŒã¿ãªãŒãã«ã³å ã«
éå ¥ããããããã¯æ¬¡ãã§ããŒã¿ãªãŒãã«ã³å ã«
ãããŠçŽïŒæé以äž1250âã®æž©åºŠã«ãªããŸã§å ç±
ãããããŒã¿ãªãŒãã«ã³ããæåºãããåã«ãã®
枩床ã§30åéç¶æããããæ°Žäžã§ã®æ¥å·ã®åŸãã
ãã¯æ°ŽæŽããããæ°ŽæŽãããåŸä¹Ÿç¥ãããçæç©
ã¯99.5ã99.7ïŒ ã®Cr2O3ãš10ã30ppmã®ïŒ³ãå«ã
ã§ããããã®é žå第äºã¯ãã ã®ç²åŸããã³ä¹Ÿç¥åµ©
å¯åºŠã¯ãã®çŒæã«ããå¢å€§ãããæçµã®ä¹Ÿç¥åµ©å¯
床ã¯éäŸå°ãªããšãïŒïœïŒml以äžã§ããã ãã®å®æœäŸã¯90ïŒ éã¯ãã é žãããªãŠã ãšçŽ
250ãã¯ãã³ã®ç²åŸããã€å¡©åã¢ã³ã¢ããŠã è¥ã
ãã¯ç¡«é žã¢ã³ã¢ããŠã ãçšããŠåæ§ã®çµæãåŸã
ãããŸã§ç¹°ãè¿ãããŠããããããããªãããå¡©
åã¢ã³ã¢ããŠã ã䜿çšããæã«ã¯ãããäžåºŠçŒæ
ãããçæç©ã¯ãããšãã°100ppmã®ç¡«é»å«æé
ãæããã ãã§ãããããããããã®å Žåã«ã¯
40ppm以äžãšããææã®ïŒ³å€ïŒç¡«é»å«æéïŒ
ã¯ãããšãã°1150âãšãããããªããäœã枩床ã
30åéç¶æããããšããããã¯1250âã®æž©åºŠã15
åéç¶æããããšã«ããåŸãããã å®æœäŸ ïŒ äºé žåç¡«é»ãéã¯ãã é žãããªãŠã 氎溶液äžã
ééãããããã溶液äžã«ãããŠç¡«é žãããªãŠã
ãšãšãã«å¯æº¶æ§å¡©åºæ§ç¡«é žç¬¬äºã¯ãã 氎溶液ãç
æããããã®æº¶æ¶²ã¯åŽé§ä¹Ÿç¥ããããã®çµæçã
ãåºäœæ··åç©ã¯ããŒã¿ãªãŒãã«ã³çå ã«å°å ¥ãã
ãŠããã®çå ã«ãããŠ850âã«ãŸã§å ç±ãããã
ã®æž©åºŠã«30åéç¶æãããããã®çæç©ã¯æ°ŽæŽã
ãäžæº¶æ§ç¡«é žç¬¬äºã¯ãã ãšïŒïŒ 以äžã®ç¡«é žãããª
ãŠã è¥ããã¯ä»ã®å¯æº¶æ§å¡©ã®æ··åç©ãããããã
ãã®æ°ŽæŽãããçæç©ã«å«ãŸãã氎溶æ§ç©è³ªã®é
ã¯ãäžæº¶æ§ç¡«é žç¬¬äºã¯ãã ãé žå第äºã¯ãã ã«å š
ãŠè»¢æãããã®ãšããŠèŠç©ã€ããã®é žå第äºã¯ã
ã ã®çŽ5wtïŒ ã§ããããã®æ°ŽæŽãããçæç©ã¯
100KgïŒhr以äžã®å²åã§ããŒã¿ãªãŒãã«ã³å ã§
1250âãçŽïŒæéã®åŸã1250âã«ãªã€ãŠãã30å
éç¶æããããããã¯åã³æ°ŽæŽããã次ãã§ä¹Ÿç¥
ããããããŠã10ã30ppmã®ïŒ³ãå«æããé žå
第äºã¯ãã çæç©ãããããã å®æœäŸ ïŒ å¯æº¶æ§å¡©ãšæ··åãããæ°Žåé žå第äºã¯ãã ïŒæ°Ž
溶æ§ç©è³ªã®éã¯é žå第äºã¯ãã ã®çŽ5wtïŒ ã§ã
ãïŒããããšãã°500KgïŒhrã®å²åã§ããŒã¿ãªãŒ
ãã«ã³å ã«å°å ¥ããããã®ãã«ã³å ã§ïŒæé以äž
1200âã®æž©åºŠã«ãŸã§å ç±ããã次ãã§ãã®æž©åºŠã§
30åéç¶æãããããã®åŸãããã¯ãã«ã³ããå
ãåºãããããã®åãåºãããçç©ã¯ãããšãã°
99.5ïŒ ã®Cr2O3ããã³30ppmã®ïŒ³ãå«ãã§ããã äžã€ã®æ¹æ³ã«ãããŠãæ°Žåé žå第äºã¯ãã ã®æ²
殿ç©ã¯çŽ100âã®æž©åºŠã§ç¡«é»ãã¯ãã é žãããªãŠ
ã æ°Žãšåå¿ãããŠã次ãã§ãã®çµæçæãããæ°Ž
åé žå第äºã¯ãã æ²æ®¿ç©ãæ¿Ÿéããããªç¡«é žãã
ãªãŠã ããã³ä»ã®ãããªãŠã å¡©ãé€å»ããããã«
æ°ŽæŽããããšã«ãã補é ããããå¥ã®æ¹æ³ã«ãã
ãŠã¯ãæ°Žåé žå第äºã¯ãã æ²æ®¿ç©ã¯éã¯ãã é žã
ããªãŠã 氎溶液ãå å§äžã«120ã150âã®æž©åºŠã§ç³
ã¿ã€ã«ããéå ãã次ãã§æ²æ®¿ç©ãæ¿Ÿéãæ°ŽæŽã
ãããšã«ãã€ãŠè£œé ãããããŸãå¥ã®æ¹æ³ã«ãã
ãŠã¯ãæ°Žåé žå第äºã¯ãã æ²æ®¿ç©ã¯ã¢ã³ãã©ã»ã³
ãçšããŠé žæ§æº¶æ¶²äžã§éã¯ãã é žãããªãŠã 氎溶
液ã§ãéå ãã次ãã§ã¢ã«ã«ãªãæ·»å ããããšã«
ãã€ãŠè£œé ãããã å®æœäŸ ïŒ éã¯ãã é žãããªãŠã ãšå°ãªããšãååŠéè«ç
éã®ç¡«é»ãããã¯æšçã®ä¹Ÿç¥èŠªå¯æ··åç©ãçæã
ããçå ã«ãããŠåŒ·ãç±ããããããã®çµæçã
ãçæç©ã¯é žå第äºã¯ãã ãšç¡«é žãããªãŠã è¥ã
ãã¯çé žãããªãŠã ã®æ··åç©ã§ãããããã¯æ¬¡ã
ã§äºå®äžå¯æº¶æ§å¡©ãç¡ããªããŸã§ãå³ã¡ãæ¬çºæ
ã«ããã氎溶æ§ç©è³ªã®éç¯å²ã®äžéå€çšåºŠãŸã§æ°Ž
æŽãããçŽ1200âã®æž©åºŠã§çŽïŒæéããŒã¿ãªãŒã
ã«ã³å ã§çŒæãããŠã30ppm以äžã®ïŒ³ãå«æã
ãçæç©ãããããã å®æœäŸ ïŒ å®éšå®€æ¡ä»¶äžãæ¬çºææ¹æ³ã®æäœæ§ããã³åç
ã«ã€ããŠæ°Žæº¶æ§ç©è³ªã®å«æéãå€åãããæã®å¹
æã蚌æãããããç¡«é žãããªãŠã ããã³é žå第
äºã¯ãã ã®éãå€åããã幟ã€ãã®æ··åç©ãç 究
çšãããã«çå ã§èª¿è£œãã€çŒæããã 第ïŒã®äžé£ã®å®éšã«ãããŠãçŒæã¯1100âã15
åéå®æœãããããã®å®éšã§ã¯ãç¡«é žãããªãŠã
ã®å«æéã30wtïŒ ä»¥äžã§ããæã¯ãå ç±ããã
çæç©ã¯èªç±ãªæµåæ§ãç¶æããŠãããçå£ã«ä»
çããªãã€ããç¡«é žãããªãŠã ã®å«æéã30ã
50wtïŒ ã®æã¯ãããçŒçµã®åŸŽåããã³å¹Ÿã€ãã®
è»ç¶å¡ã圢æããããããããã¯å®¹æã«åŽ©å£ãã
ãããçå£ã«ä»çããåŸåã¯ã»ãšãã©ãªãã€ãã
ããããªãããç¡«é žãããªãŠã ã50wtïŒ ä»¥äžã®
æã¯ãæãããªæº¶èã®äºå®ããããé«ç±çŒæç©ã¯
ç²çæ§ã§ãã€çå£ã«æ¥çããå·åŽãããšãçæç©
ã¯ç¡¬è³ªæº¶èç¶å¡ã圢æãããããé€å»ããã®ã¯å°
é£ã§ãã€ãã ä»ã®äžé£ã®å®éšã§ã¯ãçŒæã1250âãïŒæéã
空æ°äžã§å®æœããé žå第äºã¯ãã ã®æ倱ã芳å¯ã
ãã倱ãªãããé žå第ïŒã¯ãã ã¯ã¯ãã é žãããª
ãŠã å¡©ã«è»¢æãããã®ãšæããããåŸãããçµæ
ã以äžã«ç€ºãã
ãŠã®çšéãšå¶éå·¥åŠã«ãããå¿çšãããªãã¡é«æ§
èœã¯ãã å«æåéã«çšããããéå±ã¯ãã ã®è£œé
ã«ããããã®ã§ãããå®éãæ§ã ãªå質ã®é žåäº
ã¯ãã ããã®ïŒã€ã®äœ¿çšç®çã®ããã«è£œé ãã
ããããšãã°ãé¡æãšããŠçšããããé žå第äºã¯
ãã ã¯ãããè¯å¥œãªçè²ç¹æ§ããã€ãããªç²åŸã
ãã³ç²åæ§é ããã€ãŠããªããã°ãªããªãããã
ã¯æŽã«äœãäžçŽç©æºäœããã€ããšã奜ãŸãããã
å¿ ãããæ¬è³ªçãªãã®ã§ã¯ãªããããããªããã
å¶éå·¥åŠäžçšãããããã®ã«ãããŠã¯äœãäžçŽç©
æºäœããã€ããšãå¿ èŠã§ãããç¹ã«ããã®ç¡«é»å«
æéã¯ãç¡«é»ã®ååšãé žå第äºã¯ãã ããäºæ¬¡ç
ã«è£œé ãããåéã«ãããŠæ害ãªãã®ã§ãããšã
ãããšãç¥ãããŠããããšãããã§ããéãäœã
ãªããªããã°ãªããªãããããããçæ³çã«ãã
ã°ãå¶éå·¥åŠäžçšããããé žå第äºã¯ãã ã«ãã
ãŠã¯ç¡«é»å«æéãŒããæãŸããããå®éåé¡ãã
ã¯äžå¯èœã§ããããšãå·¥æ¥äžèªèãããŠãããã
ããªããã§ãéå±ã¯ãã 補é æ¥è ããã³ãã®ååŒ
å ã®è ãã¡ã¯å·¥æ¥çšçµæžçãªæ¹æ³ã§è£œé ãããæ
å°éã®ç¡«é»å«æéã§æºè¶³ããªããã°ãªããªãã€
ãã20幎åãç£æ¥çã¯çŽ100ppmïŒé žå第äºã¯ã
ã çŸäžéééšã«å¯Ÿããç¡«é»éééšïŒã®ç¡«é»å«æé
ãåãå ¥ããã°ãªããªãã€ãããããè¿å¹Žã«ã¯ã
60è¥ããã¯70ppmãšããå°éã®äžæº¶æ§ç¡«é»ãå«
æããå¶éåŠäžçšãããåŸãé žå第äºã¯ãã ãå
æ¥ããŒã¹ã§è£œé ãããããã«ãªã€ãŠããŠãããã
ã®å Žåãç¡«é»ã¯äžæº¶æ§åœ¢æ ããšã€ãŠããã®ã§ãã
ã®éã¯ç°¡åãªæŽæµã§ã¯æžå°ãããªãã ããäœãç¡«é»å«æéã®å¶éåŠäžçšãããåŸãé ž
å第äºã¯ãã ã補é ããããšãé¡ããããšããã
ãšã¯äžè¬ã«èªèãããŠãããããã®ãããªçæç©
ã¯ãç¹ã«çŽç²ãªææã®äœ¿çšã䌎ãæ¹æ³ïŒ1946幎ã«
åè¡ãããSritish and United States
Technical Industrial Intelligence Report B.I.
O.S.679ããã³F.I.A.T.814ã«èšèŒãããŠããïŒã«
ãã1945幎以åã«ãã€ãã«ãã補é ãããéå®ã
ããéã®ãã®ãé€ããŠã¯ãæ¬çºæã«å ç«ã€ãŠã¯ã
ããŸã§åæ¥çã«è£œé ãããŠã¯ããªããæ倧é
0.005ïŒ ã®ç¡«é»ãå«å«æããé žå第äºã¯ãã ãåŸ
ãããã®åèšæ¹æ³ã«ãããŠã¯ãé«äŸ¡ãªäœç¡«é»å«æ
éã¯ãã é žã«ãªãŠã ã®äœ¿çšãããã³æšçãããã¯
æšç²ã«ããç¡«é»å«æéã®äœæžãå¿ èŠã§ãã€ããã
ã®åŽåãèŠãããã€æéã浪費ããæ¹æ³ã¯çµæžç
ã§ã¯ãªãã€ããããŸãè¿å¹Žã«ãããŠã¯äœ¿çšãããŠ
ã¯ããªãã éåžžã«äœãç¡«é»å€ã¯ã泚ææ·±ãã³ã³ãããŒã«ã
ããæ¡ä»¶äžã§æäœããåŸããããªå°èŠæš¡ã®ããã
ã¯å®éšå®€ã§ã®æ¹æ³ã«ããéæããããšãå¯èœã§ã
ããããããªããããããªããããã«ãããã®ã
ããªæ¹æ³ã¯ãå®éåé¡ãšããŠãŸãã«å¿ èŠã§ãããš
ããã®å€§èŠæš¡ãªå·¥æ¥ççç£ã«ãããŠçŸã«ä¿¡é ŒãåŸ
ããããªæ¹æ³ãæ¡åºãããšããããšã«ãããŠã¯ã»
ãšãã©ãããã¯ãŸã€ãã圹ã«ç«ããªãããªããªã
ã°ãå°èŠæš¡ãªæ¹æ³ãæ¡å€§ãããšããããšã¯éåžžäž
çŽç©æºäœã®å¢å€§ããããããã®ã ããã§ãããçµ
æžçèŠå°ããå®éçã«èªããããããã«ã¯ãããš
ãã°100KgïŒhr以äžã®å²åã§çµæžçã«èªå¯ã§ãã
è£ çœ®ã«ãããŠé«å質ã®é žå第äºã¯ãã ã補é ãã
ããšãã§ãããšããããšãå¿ èŠã§ããã å¶éåŠäžäœ¿çšãåŸãå質ã®é žå第äºã¯ãã ã¯ã
æ®éãå®è³ªäžååŠéè«çã«åœéå²åã§ããéã¯ã
ã é žãããªãŠã ãšå¡©åã¢ã³ã¢ããŠã ã®åå¿ã«ãã
åŸãããéã¯ãã é žã¢ã³ã¢ããŠã ãšå¡©åãããªãŠ
ã ã®æ··åç©ãçå ã«ãããŠçŒæããããšã«ããå·¥
æ¥çã«è£œé ãããããã®å Žåã®çŒææéã¯é žå第
äºã¯ãã ãé«ãCr2O3å«æéããã€ããšãä¿èšŒã
ãããã«700â以äžã§ãªããã°ãªããªããããã
ãªããããã¯é«ããããšçå ã«ãããã¹ã©ã°çæ
ã®å±éºæ§ãå¢å€§ããã®ã§ãéåžž850â以äžã§ã
ãããã®çŒææéããã³ä»ã®æ¡ä»¶ã泚ææ·±ãæé©
ã«ä¿æããããšã«ããçŽ60è¥ããã¯70ppmã®ç¡«
é»å«æéããããããã®ãšããŠçŸåšåæ¥çã«çšã
ãããŠããåèšæ¬æ³ã«ãããŠããã®ããšã¯åºç€ç
ãªããšã§ããã å¡©åã¢ã³ã¢ããŠã ã«ä»£ããç¡«é žã¢ã³ã¢ããŠã ã®
䜿çšãšããããšããããšãã°çµæžççç±ãããã
ã°ãã°æãŸããããšãããããããã¯èš±å®¹ãé£ã
é«ç¡«é»å«æéãããããããšããçŸåšã®ãšããå
èšæ¹æ³ã«ãããŠã¯äœ¿çšã§ããªãã ä»ã«ãç¡«é žç¬¬äºã¯ãã ã®å·¥æ¥ç補é æ¹æ³ã¯ãã
ããçŸåšã®ãšããããããã¯äž»ã«ããçšåºŠã®äžçŽ
ç©ã蚱容ããããããªé¡æãããã¯ä»ã®ããäœã
ççŽã®é žå第äºã¯ãã ã®è£œé ã«éå®ãããŠããã äœãç¡«é»å«æéãæèµ·ããŠããããã€ãã®æ¹æ³
ããããŸã§èšè¿°ãããŠãããããšãã°ããã€ãç¹
èš±æ现æžç¬¬2635086å·ã«ãããŠã¯ãç¡«é žã¢ã³ã¢ã
ãŠã ãš11ä¹è³30ã¢ã«ïŒ ééã®éã¯ãã é žãããªãŠ
ã ã®åå¿ã«ããéã¯ãã é žã¢ã³ã¢ããŠã ã圢æ
ãã次ãã§æ··åç©ã800ã1100âã§ççŒããããš
ã«ãã30ppmãšããäœãã®ç¡«é»å«æå€ãåŸãã
ãšãå¯èœã§ãããšããããšãè¿°ã¹ãããŠãããæ
æ¡ãããæãé«ã枩床ã§ã¯è£ 眮å ã§ã®ã¹ã©ã°çæ
ã®å±éºããããããã®æ¹æ³ã®ç®ã ã€ãçæã¯ãé
éã®éã¯ãã é žãããªãŠã ã®äœ¿çšãå¿ ç¶çã«éã¯
ãã é žãããªãŠã ã«åºãé žå第äºã¯ãã ã®åçã
éåžžã«äœãããšãæå³ãããšããããšã§ãããã
ããããã®ããšã¯åèšæ¹æ³ãåŠå³ã®ãªããã®ã«ã
ãŠããã Kovelä»ã«ããZhurnal Prikladnoi Khimii第43
巻第ïŒå·ïŒ1970幎ïŒæïŒã®236â240ããŒãžã«èšèŒ
ãããŠããè«æã«ããã°ãã¯ãã é žãããªãŠã ã
äºé žåç¡«é»ã§ç°å ããã«ããã€ãŠèµ·ããåå¿ã¡ã«
ããºã ã«ã€ããŠã®è©³çŽ°ãªè«è°ããªãããŠããã
247ããŒãžã«ã¯ç¡«é»ã¯ç±çãããã¯ååŠçæ¹æ³ã«
ããé€å»ãåŸããšããããšãè¿°ã¹ãããŠãããå
åŠçæ¹æ³ã¯ããããããããšãã°æ°Žåé žå第äºã¯
ãã ãæ²æ®¿ãããããäžäŸ¡ã®ã¯ãã ã®å¡©åºæ§ç¡«é»
å«æå¡©ãæ°Žé žåãããªãŠã ã§åŠçããããšãå«ã
ã§ããã ããããã®ãããªæ¹æ³ã¯ç¡«é»å«æéãäœ
æžãããããããªããããããã¯çŸåšçµæžçã«æ
ãŸããŠããéåžžã«äœãç¡«é»å«æå€ãããããããš
ã¯ã§ããªãããŸã247ããŒãžã«ã¯ãæçµçæç©ã§
ããé žå第äºã¯ãã ã圢æããããã«ååŠçã«çµ
åããŠããæ°Žé žåºãæçµçã«åãã¯ããããšãå¿
ç¶çã«å å«ããç¹å¥ã®çŒææ¹æ³ã«ãããŠãç¡«é»å«
æå¡©ã¯700â765âã§å解ããããŸãæ®çäžçŽç©ã¯
1150â1250âã§å®å šã«é€å»ããããšããããšãè¿°
ã¹ãããŠãããç¹ã«ã1200âã§ïŒâ15åéå ç±ã
ãããšã99.1â99.6ïŒ ã®é žå第äºã¯ãã ãš50â
100ppmã®ç¡«é»ãå«æããçæç©ãããããããš
ããããšãè¿°ã¹ãããŠãããããã¯ããã¡ããã
å°èŠæš¡ãªè£ 眮ãçšããå®éšå®€ã§ã®æ¹æ³ã§ããããŸ
ãå ç±ãå®æœããæ¹æ³ã¯é瀺ãããŠãããããã€
äœæµé»å«æé žå第äºã¯ãã ã補é ã§ãããå®éå
é¡ããã«ãã€ãŠåŸãããäœç¡«é»å«æå€ãç¶æãã€
ã€å·¥æ¥çèŠæš¡ã«ãŸã§èŠæš¡ãæ¡å€§ããããšã¯äžå¯èœ
ã§ããããšãå®èšŒãããŠãããããªä»ã®å°èŠæš¡ãª
æ¹æ³ãšåæ§ã«åæ¥çã«ã¿ãŠéèŠã§ã¯ãªãã ä»ã®å°èŠæš¡æ¹æ³ã¯ç±³åœç¹èš±æ现æžç¬¬3723611å·
ããã³è±åœç¹èš±ç¬¬1498300å·ã«èšèŒãããŠããã
ãããã«ãããŠã¯ã900â1600âã®æž©åºŠã§0.1â10
ç§ã®æ»çæéã§æ°ŽçŽ é°å²æ°äžã§éå å¡ãä»ããŠé
ã¯ãã é žãããªãŠã ãåŽå°ããéžæçã«åæ§ã®æž©
床ã§åæ§ã®çãäŒæ¢æéãèšããåŸããã®çµæç
ããé žå第äºã¯ãã ãéããããšã«ãã€ãŠã
50ppm以äžã®ç¡«é»å«æéãéæããããšãã§ã
ããšããããšãè¿°ã¹ãããŠãããããããªããã
ã®æ¹æ³ããŸãå°èŠæš¡ãªæ¹æ³ã§ãã€ãŠãèšè¿°ãããŠ
ããæé«ã®è£œé çã¯ïŒKgïŒhrã§ãããããã¯åŸ®ç²
åç¶äºã¯ãã é žå¡©ãã¹ãã¬ãŒå¡ãæ°ŽçŽ ã®äŸçµŠãã
ãã³ã¢ã«ã«ãªæ§éå¢ãå¿ èŠãšããŠããããããã®
çš®ã ã®æ¡ä»¶ãçµåããŠãã®æ¹æ³ãåæ¥çèŠå°ãã
åŠå³ã®ãªããã®ã«ããŠããããããŠæã ã¯ããã
åæ¥äžçšããããŠãããšããããšãç¥ããªãã ãœé£ç¹èš±ç¬¬171118å·ã¯ãé žåã¯ãã ã¯ãããã
粟補ããããã«ãããšãã°1400âã§å転çå ã§ã®
ç±åŠçãæœãããåŸããŸããã®æçµçæç©ã¯100
â110ppmã®ç¡«é»å«æéããã€ãšããããšãèšèŒ
ããŠãããåŸã€ãŠããã®ç¡«é»å«æéã¯å®éåžžèŠç
ãªè£œé æ¹æ³ã«ããçŸåšåæ¥äžå©çšã§ãããã®ãã
ãã¯ããã«é«ãã è±åœç¹èš±æ现æžç¬¬962193å·ã«ã¯ãããšãã°éã¯
ãã é žã¢ã³ã¢ããŠã ã®å解ã«ãã補é ãããåŸã
å¯èæ§åºåœ¢åã®ååšäžã§é žå第äºã¯ãã ãå ç±ã
ãããšã«ããé žå第äºã¯ãã ã®åµ©å¯åºŠãå¢å€§ãã
æ¹æ³ãèšèŒãããŠããããã®å Žåã®å¥œãŸãã枩床
ã¯200â1200âïŒããé«ã枩床ãèšèŒãããŠãã
ãïŒã§ããããã®å®æœäŸã®ãã¹ãŠã«ãããŠã¯800
âè¥ããã¯850âã§ããããŸãããå Žåã«ãããŠ
ã¯ã350âãšããäœã枩床ã§ãååã§ããããšã
èšèŒãããŠãããæ·»å ãããå¯èæ§åºåœ¢åã®éã¯
奜ãŸããã¯0.1âïŒïŒ ã§ãããããã®å€ä»¥äžã®æ¿
床ã決ããŠå¥œãŸãããªããšããèš³ã§ã¯ãªããšãã
ããšãèšèŒãããŠããããã®æ现æžã«ãããŠã¯ã
補é ãããé žå第äºã¯ãã ãå¶éåŠäžçšãããåŸ
ããããªé«å質ã®é žå第äºã¯ãã ãšããŠæå³ãã
ããã®ã§ãããšãã瀺åã¯ãªãããŸãçæç©ã®ç¡«
é»å«æéã«ã€ããŠã®ãããªãèšè¿°ããªãã ç±³åœç¹èš±æ现æžç¬¬2209907å·ã«ãããŠã¯ãç¡«é»
ããã³ç¡«åãããªãŠã ã®æ°Žæ§ã¢ã«ã«ãªä¹³æ¿æ¶²ã«ã
ãéšåçã«é žæ§åãããã¯ãã é žå¡©æº¶æ¶²ã®éå ãš
ããããšãå å«ããé žå第äºã¯ãã é¡æã®è£œé æ¹
æ³ãèšèŒãããŠãããæåã«çæãããæ°Žåé žå
第äºã¯ãã ã¯ã¢ã«ã«ãªååç©ãé€å»ããããåŠç
ããã次ãã§2300â2500ãã®æž©åºŠã§ããã©ã·ãŠçŒ
æã«ã»ãŒè¿ãå¶éæéãšããŠèšè¿°ãããŠããæé
ã§ãçå ã«ãããŠãã°ããå ç±ãããããã®å ç±
ã®éã«ãçæç©äžã«çæããããããªãå¡©åºæ§ç¡«
é žå¡©ããã¡ããå解ããããããã®çŒæããã³å
解ãäœãæºäœã®äžæº¶æ§ç¡«é»ãçµæãšããŠãããã
ãšããããšã¯ç€ºåãããŠããªãããããªããã°æ
æã®çšèãªé žåç©ãããæ¿å¯ãªãã®ã«ãªãããã
ããªããšããããšãããææããã°ããå ç±ãã
ããšããã³éç±ãããã¯é·æéã®å ç±ãé¿ããã
ãšãéèŠã§ãããšããããšãèšèŒãããŠããã ãããã€ãŠãåèšæè¡ã®äžè¬çãªäœçœ®ä»ããšã
ãŠã¯ãå¶éåŠäžå©çšãåŸãå質ã®é žå第äºã¯ãã
ã¯ãéåžžãå¡©åãããªãŠã ã®ååšäžã§ã®éã¯ãã
é žã¢ã³ã¢ããŠã ã®èšè¿°ããããããªå解ã«ãã補
é ããïŒç¡«é žã¢ã³ã¢ããŠã ãééã®éã¯ãã é žå¡©
ãšãšãã«äœ¿çšãåŸããããããªããïŒãçŸåšå¶é
åŠäžæçšãªããããã¯å¥ã®åéã«ãããŠæçšãªã
é žå第äºã¯ãã ã«ãããŠåæ¥çèŠå°ããå©çšãåŸ
ãæäœã®ç¡«é»å«æéã¯60â70ppmã§ããããŸã
ããäœãç¡«é»å«æéã®ãã®ã補é ããããšã匷ã
èŠæãããŠã¯ããããå®éã®ãšãããåèšããã
ããªäŸå€çãªãã®ãé€ããŠã¯èª°ãå·¥æ¥çãªèŠæš¡ã§
ããã補é ããè ã¯ããªããšããããšããã¹ãŠã®
人ãèªèããŠãããšããããšããããããããã
äœãç¡«é»å«æéãããããããã®çš®ã ã®çè«çæ¹
æ³ãç¥ãããŠãããããšãã°ç±³åœç¹èš±ç¬¬3723611
å·ã§ã¯ãããŒã¿ãªãŒãã«ã³ã«ããçŒæãç¥ãããŠ
ããããããã¯100ppmã®ç¡«é»å«æéã®ãã®ã補
é ããããšãç®çãšããŠããã ãã§ããããŸãè±
åœç¹èš±æ现æžç¬¬962193å·ã«èšèŒãããŠããããã«
éã¯ãã é žã¢ã³ã¢ããŠã ã®å解çæç©ã®åŸå ç±ã
ç¥ãããŠããã ãã®æè¡èæ¯ã«å¯ŸããŠãç°¡åãªè£ 眮ãçšããŠã
ããŸã§éåžžå·¥æ¥çã«å©çšãããŠãããã®ãããã
ãäœãäžæº¶æ§ç¡«é»äžçŽç©æºäœããã€å¶éåŠäžå©çš
ã§ããå質ã®é žå第äºã¯ãã ãå·¥æ¥çèŠæš¡ã§è£œé
ããããã®å·¥æ¥çæ¹æ³ãæäŸããããšãæã ã®ç®
çãšãªã€ãŠããã æã ã¯ãçŒæã1100â以äžã®æž©åºŠã§é©æ£ãªæé
è¡ãªããããã€ãŸãçŒæãããçæç©ãããšãã°
å¯èæ§å¡©ã®ãããªæ°Žæº¶æ§ç©è³ªã0.1ãã50ééïŒ
ã®ç¯å²ã§å«ããªãã°ãé žå第äºã¯ãã è¥ããã¯é ž
å第äºã¯ãã ãçæããäžæº¶æ§ã¯ãã ååç©ãå«
æããé©åœãªåºäœçæç©ãçŒæããããšã«ãã€
ãŠãææã®ç®çã容æã«éæããããšããããšã
ããã«è³ã€ãŠæå€ã«ãçºèŠããã å³ã¡ãæ¬çºæã¯ãé žå第äºã¯ãã ãšãå°ãªããš
ã60ppmã®æ°Žã«äžæº¶æ§ã®ç¡«é»ãšã氎溶æ§ç©è³ª
ãšãä»»ææåã§ããçŒæäžã«æ®çºããç©è³ªãšãã
æãåºäœçæç©ãããããã¯çŒæäžã«å解ããŠå
èšåºäœçæç©ãçæãããããªç±å解æ§çæç©
ãšãä»»ææåã§ããæ®çºæ§ç©è³ªãšããæãåºäœç
æç©ãçå ã«ãããŠçŒæãã次ãã§ãæ°ŽæŽããã
ãšãããªã40ppmã®ç¡«é»ã§æ±æãããé žå第äº
ã¯ãã ã®è£œé æ¹æ³ã«ãããŠã該åºäœçæç©ã®æ°Žæº¶
æ§ç©è³ªãé žå第äºã¯ãã ã®0.1ãã50wtïŒ ã§ã
ãããã€è©²çŒæã1100â以äžã®æž©åºŠã§10åé以
äžãäžæº¶æ§ç¡«é»å«æéã40ppm以äžã«ãŸã§æžå°
ãããŸã§å®æœãããããšãç¹åŸŽãšãã40ppm以
äžã®ç¡«é»ã§æ±æãããé žå第äºã¯ãã ã®è£œé æ¹æ³
ã§ããã ãã®æ¹æ³ã¯ãç¡«é»å«æéãããšãã°10ppm以
äžãšããéåžžã«äœãå€ã«ãŸã§ãæŽã«ã¯ç¡«é»ã®å«æ
éãå³å¯ã«æž¬å®ã§ããªãã»ã©äœãå€ã«ãŸã§äžãã
ããå®æœããããšãå¯èœã§ããããã©ãããã®å¥œ
ãŸããæäžéã¯5ppm以äžã§ããããŸã奜ãŸãã
ç¯å²ãšããŠã¯ïŒâ30ppmã§ããã ããã«ãã€ãŠç¡«é»å«æéãåèšã®å€ã«ãŸã§æžå°
ããããšããéã¯åºçºããã³ææã®æçµå€ã®äž¡æ¹
ã«äŸåããã ãããææã®æçµå€ã¯åžžã«å°ãªããš
ã20ppmã§ããã ããããéäŸãåºçºå€ã¯
50ppm以äžãå€ãã®å Žåã¯100ppm以äžã§ããã
ããšãã°å¥œãŸããæ¹æ³ã«ãããŠã¯ã200ppm以
äžãããšãã°200â400ppmã®ç¡«é»ã§æ±æããã
é žå第äºã¯ãã ã¯40ppm以äžã®ç¡«é»å«æå€ã«ãŸ
ã§ç²Ÿè£œããããããããªãããæ¬æ¹æ³ã®ç¹ã«åªã
ããšããã¯ãç°¡åãªçŒææ¹æ³ã«ãããããšãã°
1000ppm以äžã®é«ãäžæº¶æ§ç¡«é»ãå«ãçæç©
ã§ãããã¯ãããšãã°ãéå å€ãšããŠã®ç¡«é»ã®äœ¿
çšã«ãã€ãŠããçæãããŠãããŸããªããšããã
ãããã¯ãŸãããèªäœãäžæº¶æ§ç¡«é žç¬¬äºã¯ãã ã§
ãã€ãŠãããŸããªããšãããããªçæç©ããäœã
ç¡«é»å«æéã®å¶éåŠäžå©çšãåŸããããªé«å質ã®
é žå第äºã¯ãã ã補é ããããšãå¯èœã§ãããšã
ãããšã§ããã ãããã®ããããã¯é«ãåæäžæº¶æ§ç¡«é»å«æé
ã«ããããããã倧èŠæš¡ãªå·¥æ¥ççŒææè¡ã«ãã
ææã®çŒæãå®æœããããšããã³ææã®äœç¡«é»å«
æéãåŸããããããªçŒææ¡ä»¶ãéžæããããšã¯
容æã§ãããšããããšãããã€ãŠããããããã
ã«ãçŒæã¯éåžžã100KgïŒhr以äžãããšãã°500ä¹
è³1000KgïŒhrãããã¯ãã以äžã®éãéãçãæ
ããçå ã«ãããŠå®æœãããããã®ããã«ããŠã
æ¬æ¹æ³ã¯é žå第äºã¯ãã ã補é ããããã®å€ãã®
æ¹æ³ãšå®¹æã«äž¡ç«ãããã®ã§ããããã€çŸåãã
é žå第äºã¯ãã 補é æ¹æ³ã«ãããæçµæ®µéãšãªã
ãããã®ã§ãããããã¯ãæ¯èŒççŽç²ãªå¶éåŠäž
å©çšãåŸãå質ã®çæç©ã補é ãããã工倫ãã
ãæ¹æ³ã«ãã補é ãããçæç©ã®å質ãæ¹åãã
ã®ã«çšãããããããã¯ãŸããããšãã°çš®ã ã®é¡
æãšããŠäœ¿çšããããã®ãå¶éåŠäžå©çšã§ããã
ããªå質ã«ãŸã§æ¹åããããã«çšããããããã®
æçµçŽç²çæç©ã¯æ®éå¶éåŠäžäœ¿çšããããã®ã§
ããããããã¯ãŸãä»ã®çšéã«ãé©çšããåŸãã
ã®ã§ããã çã¯ãããšãã°æµåå±€çã§ãã€ãŠãããããæ¬
æ¹æ³ã®ç¹ã«åªå©ãªç¹ã¯ãçã¯éåžžã«ç°¡åãªæ§é ã®
ãã®ã§ãããšããããšã§ããã奜ãŸããã¯ç¬¬äºã¯
ãã çæç©ã®çŒæã«æãäžè¬çã«çšããããçã
ã€ãŸãããŒã¿ãªãŒãã«ã³ã䜿çšããããšããããš
ã§ããã䜿çšãåŸãä»ã®çãšããŠã¯å転åæ¿åœ¢
çãå転çããããã¯ãŸãåºå®çãããããã
ãããããã¯æŠããŠçµæžçèŠå°ãã奜ãŸãããšã¯
èšããªãã代衚çãªããŒã¿ãªãŒãã«ã³æ¹æ³ã«ãã
ãŠã¯ãããšãã°200â以äžã§å€ãã®å Žå50â以äž
ã§ããåšå²æž©åºŠã«è¿ã枩床ããã€çŒæãããã¹ã
åºäœçæç©ã¯ãé°å²æ°æž©åºŠãããšãã°500âã§ã
ããããªããŒã¿ãªãŒãã«ã³ã®äœæž©ç«¯éšãžãšéå ¥ã
ãã次ãã§çå ãé«æž©ç«¯éšãžãšéãããçãéé
ããé床ããã³å ç±é床ã¯ãçŒæãããææãç
å ã«ãããŠ10åé以äž1100â以äžã®æž©åºŠãç¹ã«å¥œ
ãŸããã¯å°ãªããšã10åéææã®æé«æž©åºŠã«ä¿æ
ãããããã«å®ããããããã®çŒæ枩床ãã€ãŸã
æé«æž©åºŠã¯éäŸ1600â以äžãé垞奜ãŸããã¯1150
â1350âã®ç¯å²ã§ããã çŒæã¯ãéåžžãçæç©ã1100â以äžã®æž©åºŠãå€
ãã®å Žåæé«æž©åºŠã§å°ãªããšã15åéãïŒâ10æ
éãšãããããªé·æéã§ããããéåžžïŒæéã§å
åã§ãããç¶æããããšããæ¡ä»¶äžã§å®æœãã
ããç¹ã«15åããïŒæéãçŒææéãšããŠã¯éäŸ
奜ãŸããã1200â1300âã®æž©åºŠã§0.5âïŒæéã
äžè¬çã«èšã€ãŠå€ãã®çæç©ã«ãšã€ãŠååãªãã®
ã§ãããããããªãããããªãç¹å®ã®çæç©ã«ãš
ã€ãŠãããã€ãããªãç¹å®ã®çã«ãšã€ãŠãæé©æž©
床ã¯çã®çš®é¡ããã³åºçºäžŠã³ã«ææã®æçµç¡«é»å«
æéã®äž¡æ¹ã«äŸåãããã®ã§ããããã€ãŸããã
ãäœã枩床ããã³ïŒãããã¯ããé«ãåæç¡«é»å«
æéããã³ïŒãããã¯ããäœãæçµç¡«é»å«æéã«
ãããŠèŠæ±ããããããªããé·ãæéã䌎ã€ãŠã
çã®æž©åºŠã«äŸåãããã®ã§ãããšããããšãèªè
ãããã¹ãã§ããã æ®éãç¡«é»å«æéãæžå°ããããã«éžæããã
枩床ãšæéã®çµã¿åãã¯ãèªåçã«ããçšåºŠã®ç²
åŸã®æé·ããããããããããçæç©ã®å¯åºŠã®å¢
倧ããããããšãããããªãã®ã§ãããããšã
ã°ãæ¬æ¹æ³å®æœäžã«ãèŠæãæ¯éïŒåµ©å¯åºŠïŒã¯
0.1ã0.2ãããã¯ãã以äžå¢å€§ãããããããã
ãŸãæçµçæç©ã¯ãå¶éåŠäžçšããããçæç©ã«
ãšã€ãŠä»£è¡šçãªãããã¯å€ãã®å Žåæšæºãããã
ãé«ãèŠæãæ¯éãæãããããããªããããšã
ã°ãéå å¡«ææã®èŠæãæ¯éã¯éåžž1.25以äžã§ã
ãããããäžå®å€ã«ãŸã§å å¡«ãããæã«ãã®èŠæ
ãæ¯éã¯éåžžå°ãªããšã1.8ãå€ãã®å Žåå°ãªã
ãšãïŒä»¥äžã§ãããéåžžã«å°ããªç²åŸã¯é¡æãšã
ãŠçšãããããã®ã«ãããŠã¯éèŠã§ããã®ã«å¯Ÿã
ãŠãå¶éåŠäžã«ãããŠçšãããããã®ã«ãšã€ãŠã¯
ãã倧ããªç²åŸã®ãã®ããã°ãã°æãŸããã æ¬çºæã®äžã€ã®æ¹æ³ã«ãããŠã¯ãæ±æäžçŽç©ã¯
å¥ãšããŠå®è³ªäžå¯èæ§å¡©ããã³ä»ã®æ°Žæº¶æ§ç©è³ªã
å«ãã§ããªãé žå第äºã¯ãã ãçŒæãããããã
ããªãããæ¬çºæã§ã¯ãçŒæããç©è³ªäžã®æ°Žæº¶æ§
ç©è³ªïŒå¯èæ§å¡©ïŒã®å«æéãæ¬çºæã®ç¯å²ã«ç¹å®
ããããšã«ãã奜ãŸããå¹æãåŸãããããšãã
ã®ã¯ãã®æ°Žæº¶æ§ç©è³ªïŒå¯èæ§å¡©ïŒã®ååšã«ããç¡«
é»ã®é€å»ãä¿é²ããããšãã§ãããã®çµæçŒæã¯
æå®ã®ç¡«é»é€å»åºŠãåŸãã«ããã€ãŠããäœã枩床
ãããã¯ããçãæéã§å®æœããããšãã§ãããŸ
ãå ããã«ç²åã®æé·ãçµæãšããŠããããããš
ãã§ãããã®çµæãã倧ããªç²åŸã®çæç©ãåŸã
ããããã§ãããæ®éããããã®å©çãåŸããã
ã«ã¯0.1âïŒïŒ ã®å¯èæ§å¡©ã§ååã§ãããããã
ãªãããããå Žåã«ãããŠã¯ãå€éã®å¯èæ§å¡©ã
ãšãã€ãŠã50ïŒ ãè¶ããŠã¯ãªããã奜ãŸããã¯é ž
å第äºã¯ãã ã®ééã«å¯ŸããŠ30ïŒ ãè¶ããªãçšåºŠ
ã®å¯èæ§å¡©ãå«ãæ··åç©ã«ã€ããŠçŒæãå®æœãã
ããšã奜éœåã§ããããšãããããããå¯èæ§å¡©
ã®éã50ïŒ ãè¶ãããšãçŒæã«çšããããçå ã§
蚱容ããããã¹ã©ã°çæãçãããã®çæããã¹
ã©ã°ã¯ãéäŸæã ãããèœãšããããããã¯ãã
èœãšãããšã«ãã€ãŠç©ççã«é€å»ãããã°ãªããª
ãããŸãã氎溶æ§ç©è³ªã®éã0.1ïŒ æªæºã§ãããš
ç¡«é»å«æéãéã«å¢å ããŠå¥œãŸãããªãïŒå®æœäŸ
ïŒåç §ïŒã çŒæãããåºäœçæç©ã¯éåžžäžæº¶æ§ã¯ãã åå
ç©ããæãããŸãéåžžçæç©äžã®å šã¯ãã ã¯äžæº¶
æ§ã¯ãã ååç©ã®æ ããªããŠãããäžæº¶æ§ã¯ãã
ååç©ã¯é žå第äºã¯ãã ã§ãã€ãŠããããããã
ã¯ãŸãçŒæäžã«é žå第äºã¯ãã ãçæããäžã€ã
ããã¯ãã以äžã®ååç©ã§ãã€ãŠããããçŒæã
ããåºäœçæç©ã®äžæº¶æ§ã¯ãã ååç©ã¯éåžžæå
ã«å®è³ªçãªéã®æ°Žæº¶æ§å¯èæ§å¡©è¥ããã¯ä»ã®åå
ç©ãšã®æ··åç©ãšããŠè£œé ãããããåè¿°ããåŠ
ãããã®é åã®æ··åç©äžã«ååšããããããã¯ãŸ
ãçŒæäžã«çæãããå€éã®æ°Žèæ§å¯èæ§å¡©ãã
ãã¯ä»ã®ååç©ã®ååšã¯æãŸãããã®ã§ã¯ãªãã
50ïŒ ä»¥äžãéåžžã¯ïŒïŒ 以äžã®å¯æº¶æ§ååç©ãšãã€
ããã«äžæº¶æ§ã¯ãã ååç©ãæ®ãããã«çŒæã®å
ã«æ··åç©ããå°ãªããšã氎溶æ§ååç©ã®ã»ãšãã©
ãåé¢ãããã代衚çãªå¯æº¶æ§ååç©ãšããŠã¯ã
ããšãã°å¡©åãããªãŠã ãç¡«é žãããªãŠã ããã
ã³ãããã«å¯Ÿå¿ããçé žå¡©ãããªç¡«é žå¡©ããã³æ°Ž
é žåç©ãªã©ã®ã¢ã«ã«ãªéå±ããã²ã³åç©ããã³ç¡«
é žå¡©ã®ãããªå¯èæ§å¡©ããããããã äžæº¶æ§ã¯ãã ååç©ãšå¯æº¶æ§äžã€å¯èæ§å¡©ã®æ··
åç©ã¯æååºäœæ°Žæº¶æ§ååç©ãå«ãåºäœæ··åç©ãš
ããŠçæãããŠããããããã«ãããŠäžæº¶æ§ã¯ã
ã ååç©ããã®åºäœæ°Žæº¶æ§ååç©ã®åé¢ã¯æ°ŽæŽã«
ããå®æœãããããã®ã§ããã æ··åç©äžã«ååšãããã€æ¬çºæã«ãããŠçŒæã
ããäžæº¶æ§ã¯ãã ååç©ã¯ãé žå第äºã¯ãã ãæ°Ž
åé žåã¯ãã ãã¯ãã é žç¬¬äºã¯ãã ããã³äžæº¶æ§
å¡©åºæ§ç¡«é žç¬¬äºã¯ãã ãå«ãã§ããã 氎溶æ§ååç©ãšé žå第äºã¯ãã ã®åºäœæ··åç©
ã¯ã以äžã«ãã詳现ã«èšèŒãããããã«ãå¡©åã
ããªãŠã ãããã¯ç¡«é žãããªãŠã ã®ååšäžã§éã¯
ãã é žã¢ã³ã¢ããŠã ãçŒæããããšã«ããåŸãã
ãšãã§ããã é žå第äºã¯ãã ãšæ°ŽæŽã«ããé€å»ãåŸã氎溶æ§
å¡©ã®å¥ã®åºäœæ··åç©ã¯ãéã¯ãã é žãããªãŠã ãš
éã¯ãã é žç¡«é»ãããã¯éã¯ãã é žãããªãŠã ã
ãæã也æ§æ··åç©ããã³æšçãããå±ãããã¯æ®¿
ç²ã®ãããªççŽ è³ªéå å€ãçŒæããããšã«ããåŸ
ããããæ··åç©ã¯çŒæäžçŒç±ãããã äžæº¶æ§ã¯ãã ååç©ãšæ°ŽæŽã«ããé€å»ããããš
ãã§ããå¯æº¶æ§å¡©ã®å¥ã®åºäœæ··åç©ã¯ãè€åçµæ
ç©ã§ããäžæº¶æ§ã®å¡©åºæ§ç¡«é žç¬¬äºã¯ãã ãçæã
ãããç¡«é žç¬¬äºã¯ãã ã®å¡©åºæ§åºŠãé«ãããããª
æ¡ä»¶äžã§æ°Žæº¶æ§ç¡«é žç¬¬äºã¯ãã ãšæ°Žæº¶æ§å¡©ãçŒæ
ããããšã«ãã€ãŠåŸããããç¡«é žç¬¬äºã¯ãã ãš
å¡©ãéäŸãç¡«é žãããªãŠã ã®åæ氎溶æ§æ··åç©
ã¯ãããšãã°éã¯ãã é žãããªãŠã ã®æ°Žæº¶æ¶²ãäº
é žåç¡«é»éå ããããšã«ãã€ãŠè£œé ããåŸãå¡©ãš
ç¡«é žç¬¬äºã¯ãã ã®æº¶æ¶²ãåŽé§ä¹Ÿç¥ããããšã«ãã€
ãŠè£œé ããããšãã§ããã 氎溶æ§å¡©ãšäžæº¶æ§ã¯ãã ååç©ã®æ··åç©ã¯å¯æº¶
æ§ååç©ãå«ã溶液ããäžæº¶æ§ã®æ°Žåé žå第äºã¯
ãã ãæ²æ®¿ãããããšã«ããåŸããããã®å Žåã«
ã¯æ°Žåé žå第äºã¯ãã ã¯æ¿Ÿéã«ããå°ãªããšãæ°Ž
溶æ§ååç©ã®ã»ãšãã©ããåé¢ãããããã®çµæ
çããæ²æ®¿ç©ã¯ä»»æã«æ°ŽæŽãããããã®äžæº¶æ§æ°Ž
åé žå第äºã¯ãã ã®æ²æ®¿ç©ã¯éã¯ãã é žãããªãŠ
ã ãããã¯ã¯ãã é žãããªãŠã ãéå ããããšã
ãæãæ¹æ³ã«ãã補é ãããããã®ã§ãããããš
ãã°ãã¯ãã é žãããªãŠã è¥ããã¯éã¯ãã é žã
ããªãŠã ã¯æ°Žæº¶æ¶²äžã§ç¡«é»ã«ããéå ãããŠãã
ãªç¡«é žãããªãŠã ãæ°Žé žåãããªãŠã ããããã¯
ç¡«é žãããªãŠã ãå«ã溶液äžã§æ°Žåé žå第äºã¯ã
ã ãçæãããå¥ã®æ¹æ³ã«ãããŠã¯ãéã¯ãã é ž
ãããªãŠã ã¯æ°Žæº¶æ¶²äžã§ææ©éå å€ã«ããéå ã
ããã代衚çãªéå å€ãšããŠã¯ããã¿ãªã³ååç©
ã®ãããªçåæ°ŽçŽ ããã³ãã®èªå°äœã䞊ã³ã«ç³ã¿
ã€ãããã¯ã°ã«ã³ãŒã¹ã®ãããªçæ°Žåç©ãããã
ãããã®å Žåã氎溶æ§å¡©ã¯çé žãããªãŠã ããã
ã¯éçé žãããªãŠã ãå«ãããã®éå ã¯éåžžãªãŒ
ãã¯ã¬ãŒãå ã«ãããŠé«ãå§åããã³é«ã枩床ãš
ããæ¡ä»¶äžã«ãããŠæãåªå©ã«å®æœããããå¥ã®
æ¹æ³ã«ãããŠã¯ãéã¯ãã é žãããªãŠã ã¯é žæ§æ°Ž
溶液äžã§ææ©éå å€ïŒããšãã°ããã«ãšã³è¥ãã
ã¯ã¢ã³ãã©ã»ã³ã®ãããªçåæ°ŽçŽ ã殿ç²è¥ããã¯
ã°ã«ã³ãŒã¹ã®ãããªçæ°Žåç©ããããã¯å®éäžã
ã¹ãŠã®é©åœãªææ©éå å€ïŒã«ããéå ããã溶å
ç¡«é žç¬¬äºã¯ãã ãšæº¶è§£å¡©ã®æº¶æ¶²ãçæããã¢ã«ã«
ãªã®æ·»å ã«ããæ°Žåé žå第äºã¯ãã ãæ²æ®¿ããã æ¬çºæã¯ãç¹ã«ãéã¯ãã é žã¢ã³ã¢ããŠã ã®å
解ã«ããé žå第äºã¯ãã ã®è£œé ã«é©çšãããæ
ã«ãè©äŸ¡ããããã®ã§ãããåè¿°ããããããªåŸ
æ¥ã®æ¹æ³ã«ãããŠã¯ãéã¯ãã é žã¢ã³ã¢ããŠã ã®
ç±å解ã«ããæåã«åŸãããé žå第äºã¯ãã çæ
ç©ã¯ååšããé žå第äºã¯ãã ã«å¯ŸããŠçŽ70â100
ééïŒ ã®å¯èæ§å¡©ïŒå¡©åãããªãŠã è¥ããã¯ç¡«é ž
ãããªãŠã ïŒãå«ãã§ããããã®ãããªçæç©
ã¯ãé·æéã®é«æž©çŒæã蚱容ããããã¹ã©ã°çæ
ããããããšããããšãããæ¬çºæã«ããããã
ãªé«æž©çŒæãæœããããšãã§ããªãããã®ããš
ã¯ãæ¬çºæã«ãããé«æž©çŒæãããšãã°åæ¿çã
ããŒã¿ãªãŒãã«ã³ã®ãããªç§»ååŒçå ã«ãããŠå®
æœãããå Žåã«ã¯ç¹æã®åé¡ãåŒãèµ·ããã ã
ãã æ¬çºæã«ããäžã€ã®æ¹æ³ã«ãããŠã¯ãå°ãªããš
ãé žå第äºã¯ãã ã®äžéšåã¯æ¬çºæã®é«æž©çŒæã
å®æœãããã¹ãçãšåãçå ã§ã®éã¯ãã é žã¢ã³
ã¢ããŠã ã®å解ã«ãã補é ãããããã®ãããªäŸ
絊ææãçšããŠãæ¬çºæã«ãããŠçŒæã«ãã€ãŠè£œ
é ãããé žå第äºã¯ãã ã¯ãçå ã«ãããŠå¯èæ§
å¡©ã®éãçå ã«ãããé žå第äºã¯ãã ã®å šéé
ïŒã€ãŸãå埪ç°é žåç©ãã©ã¹éã¯ãã é žããçæ
ãããé žåç©ïŒã«å¯ŸããŠ50ïŒ ä»¥äžã奜ãŸããã¯30
ïŒ ä»¥äžã«ãŸã§æžããã®ã«ååãªéã§çå ãžãšå埪
ç°ãããã æ¬çºæãå®æœããããã®å¥œé©ãªæ¹æ³ã¯ãæ°Žãé
ã¯ãã é žã¢ã³ã¢ããŠã ãåã³å¡©åãããªãŠã è¥ã
ãã¯ç¡«é žãããªãŠã ã®æ··åç©ãéã¯ãã é žã¢ã³ã¢
ããŠã ã®å解枩床以äžã§ãã€åèšæ··åç©ã®ã¹ã©ã°
çæ枩床以äžã®æž©åºŠã§å ç±ããåå¿çæç©ãæ°ŽæŽ
ããŠå°ãªããšãå¡©åãããªãŠã è¥ããã¯ç¡«é žãã
ãªãŠã ã®å€§éšåãé€å»ãã次ãã§ãã®çµæçæã
ããæ°Žã«äžæº¶æ§ã®ç¡«é»ã«ããæ±æãããé žå第äº
ã¯ãã ãé«æž©ãã€åèšãããããªæéã§çŒæãã
æ°Žã«äžæº¶æ§ã®ç¡«é»ãææã®å€ã«ãŸã§æžãããšãã
ããšããæ§æãããŠãããéåžžãçŒæãããææ
ã¯æ°ŽæŽããã次ãã§ä¹Ÿç¥ãããã éã¯ãã é žã¢ã³ã¢ããŠã ãšå¡©åãããªãŠã è¥ã
ãã¯ç¡«é žãããªãŠã ã®æ··åç©ã¯ãéåžžãæ°Žã®ååš
äžã®éã¯ãã é žãããªãŠã ãšå¡©åã¢ã³ã¢ããŠã è¥
ããã¯ç¡«é žã¢ã³ã¢ããŠã ã®éã®è€å解ã«ãã€ãŠç
æãããããã®æ··åç©ã¯ããããé©å®ã®æ¹æ³ã«ã
ã補é ãããããã®ã§ãããããšãã°ãåºäœã¢ã³
ã¢ããŠã å¡©ããä»»æã«å°éã®æ·»å æ°Žã®ååšäžã§ã
çµæ¶æ§éã¯ãã é žãããªãŠã äºæ°Žåç©ãšæ··åãã
ãŠãããããããã¯ã¢ã³ã¢ããŠã å¡©ã®æ¿çž®æ¶²ãåº
äœç¶æ ã®äºã¯ãã é žå¡©ãšæ··åãããŠãããããã
ããªãããéäŸãåºäœã¢ã³ã¢ããŠã å¡©ã¯ãããšã
ã°ãªããã«åœã900ã°ã©ã 以äžã奜ãŸããã¯1500
ã°ã©ã 以äžè¥ããã¯ã¡ããã©1700ã°ã©ã ã®éã¯ã
ã é žãããªãŠã äºæ°Žåç©ãå«ãéã¯ãã é žãããª
ãŠã ã®æ¿çž®æ¶²ãšæ··åããããã¢ã³ã¢ããŠã å¡©ã®é
ã¯ãããããäžæ¹ã奜ãŸããã¯ã¢ã³ã¢ããŠã ã®é
ã®ã»ããå€ãæ¹ãæãŸãããšããããããäºå®äž
éã¯ãã ãããªãŠã ãšååŠéè«çã«åœéã§ããã¹
ãã§ãããããšãã°ç¡«é žã¢ã³ã¢ããŠã ã¯çŽïŒïŒ ãŸ
ã§ééã§ãã€ãŠããããããããªãããããšãã°
ãã€ãç¹èš±æ现æžç¬¬2635086å·ã«èšèŒãããŠãã
ããã«ãééã®éã¯ãã é žãããªãŠã ãçšããã
ãŠããããã¢ã³ã¢ããŠã å¡©ãå¡©åã¢ã³ã¢ããŠã ã§
ããå Žåã«ã¯ãè€å解åå¿çæç©ã®çŒæ枩床ã¯ã
奜ãŸããã¯ã¹ã©ã°çæã®å±éºãæå°é床ã«ãšã©ã
ãããã«800âè¥ããã¯850â以äžã«ç¶æãããã
ãŸãã¢ã³ã¢ããŠã å¡©ãç¡«é žã¢ã³ã¢ããŠã ã§ããå Ž
åã¯ã900âãŸã§ããããã¯æã«ã¯950â1000âãŸ
ã§ã®çŒæ枩床ã§ãæºè¶³ã®ãããã®ã§ããã å€ãã®å Žåã700â900âãããšãã°750â800â
ã®æž©åºŠã§å ç±ããããšã«ããç±å解ãçãããã
ãšããããšã奜éœåã§ããããæ¬çºæã®å©ç¹ã¯ã
æçµçŒæå·¥çšã«ãããŠè£œé ãããçæç©ã®å質ã«
äžå©ãªåœ±é¿ãäžããããšãªãããäœã枩床ã§å解
ãå®æœã§ãããšããããšã§ãããããšãã°ãå解
250âè¥ããã¯300âãã700âãŸã§ãããšãã°çŽ
600âã®æž©åºŠã§å®æœããããšãã§ããããã®ç±å
解ã¯ãããšãã°ããŒã¿ãªãŒãã«ã³ã®ãããªã©ã®ã
ããªé©åœãªçã«ãããŠãå®æœã§ãããŸãå®å šãªå
解ãçããããéžæããã枩床ã§ååãªæéãå®
æœãããã代衚çãªç±å解æéã¯15åããïŒæ
éãéåžžçŽ30åã§ããã çãžã®äŸçµŠã¯ã¢ã«ã«ãªéå±äºã¯ãã é žå¡©ãšåºäœ
ã¢ã³ã¢ããŠã å¡©ãé©åœãªæ¹æ³ã§æ¥è§Šãããããšã«
ãããªããããéäŸããããã¯æ¿åãªããŒã¹ãç¶
ã«ãªããŸã§æ··åããã次ãã§çŽæ¥çãžéãããã
ããæ··åãã溶液è¥ããã¯çšèãªããŒã¹ãç¶ã®ã
ã®ãåŸãããã»ã©å€éã®æ°Žã®ååšäžã«è¡ãªããã
ãªãã°ããã®æ°Žã¯ãããšãã°çå ãžã®äŸçµŠã«å ç«
ã€ãŠãããã¯ãã®éã«åŽé§ä¹Ÿç¥ããããšã«ããã
ããªèžçºã«ããé€å»ããããã¢ã³ã¢ããŠã å¡©ã¯ã
ããšãã°50â500ãã¯ãã³ãããã«ã¯çŽ250ãã¯ã
ã³ãšããç²åŸãæããŠãããã奜ãŸããã¯ããã®
ãããªç²åŸã¯ãã¢ã«ã«ãªéå±äºã¯ãã é žå¡©æº¶æ¶²
ããããšãã°90ïŒ ä»¥äžãã€ãŸã1700ïœïŒä»¥äžã®
éã¯ãã é žãããªãŠã äºæ°Žåç©ãå«ããã®ã§ãã
ãããªéåžžã«æ¿çž®ããããã®ã§ããå Žåã«ãçšã
ããããããããªãããç¹ã«ã¢ã³ã¢ããŠã å¡©ãç¡«
é žã¢ã³ã¢ããŠã ã§ããå Žåãªã©ã®ããã«ãæã«
ã¯ãããšãã°æ倧ç²åŸ0.5âïŒããªã¡ãŒãã«ãšã
ããããªãã倧ããªç²åŸã®ã¢ã³ã¢ããŠã å¡©ã䜿çš
ããããšããã奜éœåãªå Žåããããæã ã¯ãã
ããã®ãã倧ããªç²åŸã®ç¡«é žã¢ã³ã¢ããŠã ããã
ãšãã°950ïœïŒã®éã¯ãã é žãããªãŠã äºæ°Žå
ç©ãå«ããããª50â65ïŒ äºã¯ãã é žå¡©æº¶æ¶²ãšäºäž
åã®éçŽ70â以äžã®æž©åºŠã§æ··åãããªãã°ãè€å
解ãäºå®äžå®å šã«è¡ãªãããç¶æ ã®ã¹ã©ãªãŒè¥ã
ãã¯çšèãªããŒã¹ãç¶ã®æ··åç©ãåŸããããšã
ããé©ãã¹ãçºèŠãããããã®æ··åç©ã¯çŽæ¥ããŒ
ã¿ãªãŒãã«ã³ãããã¯å¥ã®çå ãžãšäŸçµŠãããŠã
ãããéã¯ãã é žã¢ã³ã¢ããŠã ã®ç±å解ãããã
ããããããªãããããæãŸãããªããçå ã«ã
ããŠèŠæ±ãããå ç±æž©åºŠã¯ãçå ã«äŸçµŠãããå
ã«åå¿æ··åç©ããæ°Žåãèžçºãããããšã«ãã€ãŠ
æžããããããã®ã§ããã éã¯ãã é žã¢ã³ã¢ããŠã ãå解ããããå ç±ã
ããåŸããã®æ··åç©ã¯å¯æº¶æ§å¡©ãæ¬çºæã®ç¯å²å
ã§ãã»ãŒå®å šã«ãªãããããã«æ°ŽæŽãããŠãã
ãããããã¯ãŸãããã¯éšåçã«ã®ã¿æ°ŽæŽãããŠ
ããããããããªãããååšãããããªãŠã å¡©ã®
å°ãªããšãåå以äžã¯é€å»ãããã°ãªããããŸã
次ã®çå ã§ã®åå ç±äžã«å€å°ã®éã®éã¯ãã é žã
ããªãŠã ãçæãããã®ãé²ãããã«ãããªãŠã
å¡©ã®å°ãªããšãã»ãšãã©å šéšãæœåºããããšã奜
ãŸããã æ°ŽæŽãããçæç©ã¯ãããèŠæ±ããããªãã°ã
é«æž©çŒæãæœãããåã«ä¹Ÿç¥ãããŠãããããã
ã®ããšã¯çµ¶å¯Ÿå¿ èŠãšãããã®ã§ã¯ãªããæ°ŽæŽãã
ãåºåœ¢ç©ãæ¿Ÿéãããã¯é å¿åé¢ããããšã«ãã€
ãŠåŸããã湿ã±ãŒã¯ãçŽæ¥çãžãšéãããŠãã
ãã é«æž©çŒæã®åŸãé žå第äºã¯ãã ã¯éäŸæçµçãª
æ°ŽæŽãæœãããããã®ããšã¯åå ç±å·¥çšã«ãããŠ
çæããããããªãã¯ãã é žãããªãŠã ãšåæ§ã«
ååšãããããããªããããªãå¯æº¶ç¶ç¡«é»ååç©
ããé€å»ãããã®ã§ãããããããªãããåŠçæ¡
件ã«ãããŠãåŸãããé žå第äºã¯ãã ãç¡èŠã§ã
ãã»ã©ã®ããããªéã®æ°Žæº¶æ§ç©è³ªãå«ãããéžæ
ãããŠãããªãã°ãæçµçãªæ°ŽæŽå·¥çšã¯çç¥ãã
ãããæ°ŽæŽãå®æœããããšãæ°ŽæŽãããçæç©ã¯
åŒãç¶ããŠä¹Ÿç¥ãããããå¿ èŠãªãã°ãç²ç ãã
ãã 次ã«ããã€ãã®å®æœäŸã«ããæ¬çºæã説æã
ãã å®æœäŸ ïŒ 113éšã®Na2Cr2O7ãå«ãéã¯ãã é žãããªãŠã
ã®å ç±ããã氎溶液143éšã«å¯ŸããŠãç²åŸ250ãã¯
ãã³ä»¥äžã®ç¡«é žã¢ã³ã¢ããŠã 60éšãæ·»å ãããã
ã®ããšã¯ãäºã¯ãã é žå¡©ã«å¯ŸããååŠéè«çéã
ããå€ãïŒïŒ ééã®ç¡«é žã¢ã³ã¢ããŠã ã®æ·»å ã瀺
ããŠããããã®æ··åç©ã¯ããæ¹æããå·åŽããã
ãšåºåããæ¿åãªããŒã¹ãã圢æãããç²ç ãã
ãåŸããã®åºåœ¢ç©ã¯ãããã«çå ã«ãããŠ600â
ã§30åéå ç±ãããããã®çµæã§ããçæç©ã¯é
åååšããç¡«é žãããªãŠã ã®ã»ãŒ97ïŒ ãé€å»ãã
ããã«æ°ŽæŽãããããã®çµæã氎溶æ§ç©è³ªã®éã¯
é žå第äºã¯ãã ã®çŽ2.8wtïŒ ã§ãã次ãã§ããã¯
也ç¥ããã1150âã§30åéçå ã«ãããŠåå ç±ã
ãããå·åŽãããççŒç©ãæ°ŽæŽãã次ãã§ä¹Ÿç¥ã
ããããšãCr2O399.7ïŒ ããã³S0.004ïŒ ãå«ãé ž
å第äºã¯ãã 65éšãåŸãããã å®æœäŸ ïŒ éã¯ãã é žãããªãŠã ãšç¡«é žã¢ã³ã¢ããŠã ã®å
åŠéè«çåœéæ··åç©ããå®æœäŸïŒã«èšèŒãããæ¹
æ³ã«ãããç¡«é žã¢ã³ã¢ããŠã 60éšãšã119éšã®é
ã¯ãã é žãããªãŠã ãå«ãå ç±ããã氎溶液150
éšãšãã調æŽãããã次ãã§ãç²ç ãããåºåœ¢ç©
ã¯ãããã«çå ã«ãããŠ450âã§30åéå ç±ã
ããæŽã«ååšããç¡«é žãããªãŠã ã®ã»ãŒ95ïŒ ãé€
å»ããã®ã«ååãªæ°Žã§æŽæµãããããã®çµæãæ°Ž
溶æ§ç©è³ªã®éã¯é žå第äºã¯ãã ã®çŽ4.6wtïŒ ã§ã
ãã次ãã§ããã®çæç©ã也ç¥ãã1250âã§ïŒæ
éçå ã§åå ç±ããããã®å·åŽãããççŒç©ãæ°Ž
æŽããã也ç¥ããããšãCr2O399.6ïŒ ããã³
S0.003ïŒ ãå«ãé žå第äºã¯ãã 68éšãååãã
ãã å®æœäŸ ïŒ çŽ950ïœïŒã®éã¯ãã é žãããªãŠã äºæ°Žåç©
ãå«ã60ïŒ éã¯ãã é žãããªãŠã 氎溶液ã105â
ã®æž©åºŠã§ã¹ã¯ãªãŠãŒæ··åæ©äžã«4900KgïŒhrã®å²å
ã§å°å ¥ãããåŸãã1330KgïŒhrã®å²åã§ïŒmm以äž
ã®ç²åŸããã€ç¡«é žã¢ã³ã¢ããŠã çµæ¶ãæ··å ¥ãã
ãããã®æ··åç©ã¯100âã®æž©åºŠã§15åéæ··åæ©äž
ã§æ··åããã次ãã§ãããã®æž©åºŠãçŽ400âã§ã
ãäœæž©ç«¯éšã«ãããŠããŒã¿ãªãŒãã«ã³å ã«ã¹ã©ãª
ãŒãšããŠçŽæ¥é£ç¶çã«æµå ¥ããããããã¯15åé
ç¶æãããçŽ850âãšããæé«æž©åºŠã«ãŸã§çå šäœ
ãéããŠå°ããããã®çµæçããçæç©ã¯2900
KgïŒhrã®å²åã§çããæåºãããããã®çæç©ã¯
æ°Žäžã§æ¥å·ããã次ãã§20âã®æž©åºŠã§åæµæ°ŽæŽã·
ã¹ãã äžã§æ°ŽæŽããããçµæçããçæç©ã¯500
ã1000ppmã®äžæº¶æ§ç¡«é»ããã³çŽ0.1ïŒ ã®å¯èç
ç¡«é žãããªãŠã 䞊ã³ã«ä»ã®å¡©ãå«ãé žå第äºã¯ã
ã ã§æãç«ã€ãŠãããå³ã¡ã氎溶æ§ç©è³ªã¯é žå第
äºã¯ãã ã®çŽ0.1wtïŒ å«æããããããã¯2500
KgïŒhrã®å²åã§ã»ãŒ60ïŒ ã®åºåœ¢åãå«ã湿ããŒã¹
ããšããŠããã®æž©åºŠãçŽ450âã§ããäœæž©ç«¯éšã«
ãããŠ85ãã€ãŒãã®é·ãã®ããŒã¿ãªãŒãã«ã³å ã«
éå ¥ããããããã¯æ¬¡ãã§ããŒã¿ãªãŒãã«ã³å ã«
ãããŠçŽïŒæé以äž1250âã®æž©åºŠã«ãªããŸã§å ç±
ãããããŒã¿ãªãŒãã«ã³ããæåºãããåã«ãã®
枩床ã§30åéç¶æããããæ°Žäžã§ã®æ¥å·ã®åŸãã
ãã¯æ°ŽæŽããããæ°ŽæŽãããåŸä¹Ÿç¥ãããçæç©
ã¯99.5ã99.7ïŒ ã®Cr2O3ãš10ã30ppmã®ïŒ³ãå«ã
ã§ããããã®é žå第äºã¯ãã ã®ç²åŸããã³ä¹Ÿç¥åµ©
å¯åºŠã¯ãã®çŒæã«ããå¢å€§ãããæçµã®ä¹Ÿç¥åµ©å¯
床ã¯éäŸå°ãªããšãïŒïœïŒml以äžã§ããã ãã®å®æœäŸã¯90ïŒ éã¯ãã é žãããªãŠã ãšçŽ
250ãã¯ãã³ã®ç²åŸããã€å¡©åã¢ã³ã¢ããŠã è¥ã
ãã¯ç¡«é žã¢ã³ã¢ããŠã ãçšããŠåæ§ã®çµæãåŸã
ãããŸã§ç¹°ãè¿ãããŠããããããããªãããå¡©
åã¢ã³ã¢ããŠã ã䜿çšããæã«ã¯ãããäžåºŠçŒæ
ãããçæç©ã¯ãããšãã°100ppmã®ç¡«é»å«æé
ãæããã ãã§ãããããããããã®å Žåã«ã¯
40ppm以äžãšããææã®ïŒ³å€ïŒç¡«é»å«æéïŒ
ã¯ãããšãã°1150âãšãããããªããäœã枩床ã
30åéç¶æããããšããããã¯1250âã®æž©åºŠã15
åéç¶æããããšã«ããåŸãããã å®æœäŸ ïŒ äºé žåç¡«é»ãéã¯ãã é žãããªãŠã 氎溶液äžã
ééãããããã溶液äžã«ãããŠç¡«é žãããªãŠã
ãšãšãã«å¯æº¶æ§å¡©åºæ§ç¡«é žç¬¬äºã¯ãã 氎溶液ãç
æããããã®æº¶æ¶²ã¯åŽé§ä¹Ÿç¥ããããã®çµæçã
ãåºäœæ··åç©ã¯ããŒã¿ãªãŒãã«ã³çå ã«å°å ¥ãã
ãŠããã®çå ã«ãããŠ850âã«ãŸã§å ç±ãããã
ã®æž©åºŠã«30åéç¶æãããããã®çæç©ã¯æ°ŽæŽã
ãäžæº¶æ§ç¡«é žç¬¬äºã¯ãã ãšïŒïŒ 以äžã®ç¡«é žãããª
ãŠã è¥ããã¯ä»ã®å¯æº¶æ§å¡©ã®æ··åç©ãããããã
ãã®æ°ŽæŽãããçæç©ã«å«ãŸãã氎溶æ§ç©è³ªã®é
ã¯ãäžæº¶æ§ç¡«é žç¬¬äºã¯ãã ãé žå第äºã¯ãã ã«å š
ãŠè»¢æãããã®ãšããŠèŠç©ã€ããã®é žå第äºã¯ã
ã ã®çŽ5wtïŒ ã§ããããã®æ°ŽæŽãããçæç©ã¯
100KgïŒhr以äžã®å²åã§ããŒã¿ãªãŒãã«ã³å ã§
1250âãçŽïŒæéã®åŸã1250âã«ãªã€ãŠãã30å
éç¶æããããããã¯åã³æ°ŽæŽããã次ãã§ä¹Ÿç¥
ããããããŠã10ã30ppmã®ïŒ³ãå«æããé žå
第äºã¯ãã çæç©ãããããã å®æœäŸ ïŒ å¯æº¶æ§å¡©ãšæ··åãããæ°Žåé žå第äºã¯ãã ïŒæ°Ž
溶æ§ç©è³ªã®éã¯é žå第äºã¯ãã ã®çŽ5wtïŒ ã§ã
ãïŒããããšãã°500KgïŒhrã®å²åã§ããŒã¿ãªãŒ
ãã«ã³å ã«å°å ¥ããããã®ãã«ã³å ã§ïŒæé以äž
1200âã®æž©åºŠã«ãŸã§å ç±ããã次ãã§ãã®æž©åºŠã§
30åéç¶æãããããã®åŸãããã¯ãã«ã³ããå
ãåºãããããã®åãåºãããçç©ã¯ãããšãã°
99.5ïŒ ã®Cr2O3ããã³30ppmã®ïŒ³ãå«ãã§ããã äžã€ã®æ¹æ³ã«ãããŠãæ°Žåé žå第äºã¯ãã ã®æ²
殿ç©ã¯çŽ100âã®æž©åºŠã§ç¡«é»ãã¯ãã é žãããªãŠ
ã æ°Žãšåå¿ãããŠã次ãã§ãã®çµæçæãããæ°Ž
åé žå第äºã¯ãã æ²æ®¿ç©ãæ¿Ÿéããããªç¡«é žãã
ãªãŠã ããã³ä»ã®ãããªãŠã å¡©ãé€å»ããããã«
æ°ŽæŽããããšã«ãã補é ããããå¥ã®æ¹æ³ã«ãã
ãŠã¯ãæ°Žåé žå第äºã¯ãã æ²æ®¿ç©ã¯éã¯ãã é žã
ããªãŠã 氎溶液ãå å§äžã«120ã150âã®æž©åºŠã§ç³
ã¿ã€ã«ããéå ãã次ãã§æ²æ®¿ç©ãæ¿Ÿéãæ°ŽæŽã
ãããšã«ãã€ãŠè£œé ãããããŸãå¥ã®æ¹æ³ã«ãã
ãŠã¯ãæ°Žåé žå第äºã¯ãã æ²æ®¿ç©ã¯ã¢ã³ãã©ã»ã³
ãçšããŠé žæ§æº¶æ¶²äžã§éã¯ãã é žãããªãŠã 氎溶
液ã§ãéå ãã次ãã§ã¢ã«ã«ãªãæ·»å ããããšã«
ãã€ãŠè£œé ãããã å®æœäŸ ïŒ éã¯ãã é žãããªãŠã ãšå°ãªããšãååŠéè«ç
éã®ç¡«é»ãããã¯æšçã®ä¹Ÿç¥èŠªå¯æ··åç©ãçæã
ããçå ã«ãããŠåŒ·ãç±ããããããã®çµæçã
ãçæç©ã¯é žå第äºã¯ãã ãšç¡«é žãããªãŠã è¥ã
ãã¯çé žãããªãŠã ã®æ··åç©ã§ãããããã¯æ¬¡ã
ã§äºå®äžå¯æº¶æ§å¡©ãç¡ããªããŸã§ãå³ã¡ãæ¬çºæ
ã«ããã氎溶æ§ç©è³ªã®éç¯å²ã®äžéå€çšåºŠãŸã§æ°Ž
æŽãããçŽ1200âã®æž©åºŠã§çŽïŒæéããŒã¿ãªãŒã
ã«ã³å ã§çŒæãããŠã30ppm以äžã®ïŒ³ãå«æã
ãçæç©ãããããã å®æœäŸ ïŒ å®éšå®€æ¡ä»¶äžãæ¬çºææ¹æ³ã®æäœæ§ããã³åç
ã«ã€ããŠæ°Žæº¶æ§ç©è³ªã®å«æéãå€åãããæã®å¹
æã蚌æãããããç¡«é žãããªãŠã ããã³é žå第
äºã¯ãã ã®éãå€åããã幟ã€ãã®æ··åç©ãç 究
çšãããã«çå ã§èª¿è£œãã€çŒæããã 第ïŒã®äžé£ã®å®éšã«ãããŠãçŒæã¯1100âã15
åéå®æœãããããã®å®éšã§ã¯ãç¡«é žãããªãŠã
ã®å«æéã30wtïŒ ä»¥äžã§ããæã¯ãå ç±ããã
çæç©ã¯èªç±ãªæµåæ§ãç¶æããŠãããçå£ã«ä»
çããªãã€ããç¡«é žãããªãŠã ã®å«æéã30ã
50wtïŒ ã®æã¯ãããçŒçµã®åŸŽåããã³å¹Ÿã€ãã®
è»ç¶å¡ã圢æããããããããã¯å®¹æã«åŽ©å£ãã
ãããçå£ã«ä»çããåŸåã¯ã»ãšãã©ãªãã€ãã
ããããªãããç¡«é žãããªãŠã ã50wtïŒ ä»¥äžã®
æã¯ãæãããªæº¶èã®äºå®ããããé«ç±çŒæç©ã¯
ç²çæ§ã§ãã€çå£ã«æ¥çããå·åŽãããšãçæç©
ã¯ç¡¬è³ªæº¶èç¶å¡ã圢æãããããé€å»ããã®ã¯å°
é£ã§ãã€ãã ä»ã®äžé£ã®å®éšã§ã¯ãçŒæã1250âãïŒæéã
空æ°äžã§å®æœããé žå第äºã¯ãã ã®æ倱ã芳å¯ã
ãã倱ãªãããé žå第ïŒã¯ãã ã¯ã¯ãã é žãããª
ãŠã å¡©ã«è»¢æãããã®ãšæããããåŸãããçµæ
ã以äžã«ç€ºãã
ãè¡šã
å®éšå®€èŠæš¡ã«ãããŠãé
žå第äºã¯ãã ã®æ倱ã¯
ããªãå°ãªããšæããããããã®åŸåã¯åèšè«žå®
æœäŸãšåæ§ã§ãããã å®æœäŸ ïŒ æ°Žæº¶æ§ç©è³ªå«æéã«ä¿ããç¡«é»ã®é€å»ã®å®¹ææ§
ã®å¹æã蚌æãããããéã¯ãã é žãããªãŠã
ïŒ89ïŒ æ°Žæº¶æ¶²ãšããŠå°å ¥ãããïŒãšç¡«é žã¢ã³ã¢ã
ãŠã ïŒè¡šé¢é¢ç©0.18m2ïŒïœãæããç²åãšããŠå°
å ¥ãããïŒãšã®ååŠéè«çåœéæ··åç©ãæ¹æãç Ž
ç ããã³800âã30åå ç±ããããã®çæç©ã®äž
éšãè€æ°åããäºãã«æ°Žæº¶æ§ç©è³ªïŒäž»ã«ç¡«é žãã
ãªãŠã ïŒã®éãç°ãªãããã«ããããããããæ°Ž
æŽããã次ãã§ããããåã ã®æ°Žæº¶æ§ç©è³ªå«æé
ã決å®ãããåã ã也ç¥ãã次ãã§ã1150âã30
åã®åäžæ¡ä»¶äžã§å®è³ªçã«çŒæããŠçæç©ãåŸã
次ãã§æ°ŽæŽããçæç©äžã®ç¡«é»ããã³é žå第äºã¯
ãã ã®åå«æéãæ±ããããã®çµæã以äžã«ç€º
ãã
ããªãå°ãªããšæããããããã®åŸåã¯åèšè«žå®
æœäŸãšåæ§ã§ãããã å®æœäŸ ïŒ æ°Žæº¶æ§ç©è³ªå«æéã«ä¿ããç¡«é»ã®é€å»ã®å®¹ææ§
ã®å¹æã蚌æãããããéã¯ãã é žãããªãŠã
ïŒ89ïŒ æ°Žæº¶æ¶²ãšããŠå°å ¥ãããïŒãšç¡«é žã¢ã³ã¢ã
ãŠã ïŒè¡šé¢é¢ç©0.18m2ïŒïœãæããç²åãšããŠå°
å ¥ãããïŒãšã®ååŠéè«çåœéæ··åç©ãæ¹æãç Ž
ç ããã³800âã30åå ç±ããããã®çæç©ã®äž
éšãè€æ°åããäºãã«æ°Žæº¶æ§ç©è³ªïŒäž»ã«ç¡«é žãã
ãªãŠã ïŒã®éãç°ãªãããã«ããããããããæ°Ž
æŽããã次ãã§ããããåã ã®æ°Žæº¶æ§ç©è³ªå«æé
ã決å®ãããåã ã也ç¥ãã次ãã§ã1150âã30
åã®åäžæ¡ä»¶äžã§å®è³ªçã«çŒæããŠçæç©ãåŸã
次ãã§æ°ŽæŽããçæç©äžã®ç¡«é»ããã³é žå第äºã¯
ãã ã®åå«æéãæ±ããããã®çµæã以äžã«ç€º
ãã
ãè¡šã
äžè¡šãããããã®çŒææ¡ä»¶äžã氎溶æ§ç©è³ªå«æ
éã0.1ïŒ ä»¥äžã«æžå°ãããšç¡«é»é€å»ãé¡èã«åŠš
害ãããããšãåããã
éã0.1ïŒ ä»¥äžã«æžå°ãããšç¡«é»é€å»ãé¡èã«åŠš
害ãããããšãåããã
Claims (1)
- ãç¹èš±è«æ±ã®ç¯å²ã ïŒ é žå第äºã¯ãã ãšãå°ãªããšã60ppmã®æ°Ž
ã«äžæº¶æ§ã®ç¡«é»ãšã氎溶æ§ç©è³ªãšãä»»ææåã§ã
ãçŒæäžã«æ®çºããç©è³ªãšããæãåºäœçæç©
ãããããã¯çŒæäžã«å解ããŠåèšåºäœçæç©ã
çæãããããªç±å解æ§çæç©ãšãä»»ææåã§ã
ãæ®çºæ§ç©è³ªãšããæãåºäœçæç©ãçå ã«ãã
ãŠçŒæãã次ãã§ãæ°ŽæŽããããšãããªã
40ppm以äžã®ç¡«é»ã§æ±æãããé žå第äºã¯ãã
ã®è£œé æ¹æ³ã«ãããŠã該åºäœçæç©äžã®æ°Žæº¶æ§ç©
質ãé žå第äºã¯ãã ã®0.1ãã50wtïŒ ã§ãããã
ã€è©²çŒæã1100â以äžã®æž©åºŠã§10åé以äžãäžæº¶
æ§ç¡«é»å«æéã40ppm以äžãŸã§æžå°ãããŸã§å®
æœãããããšãç¹åŸŽãšãã40ppm以äžã®ç¡«é»ã§
æ±æãããé žå第äºã¯ãã ã®è£œé æ¹æ³ã ïŒ åèšåºäœçæç©ãïŒïŒ ãè¶ããªãç¯å²ã®æ°Žæº¶
æ§ç©è³ªãå«ãã§ããããšãç¹åŸŽãšããç¹èš±è«æ±ã®
ç¯å²ç¬¬ïŒé ã«èšèŒã®æ¹æ³ã ïŒ åèšåºäœçæç©ã0.1ã0.5ïŒ ã®æ°Žæº¶æ§ç©è³ªã
å«ãã§ããããšãç¹åŸŽãšããç¹èš±è«æ±ã®ç¯å²ç¬¬ïŒ
é ã«èšèŒã®æ¹æ³ã ïŒ åèšçãããŒã¿ãªãŒãã«ã³ã§ããããšãç¹åŸŽ
ãšããåèšç¹èš±è«æ±ã®ç¯å²ç¬¬ïŒé ä¹è³ç¬¬ïŒé ã®ã
ãããïŒé ã«èšèŒã®æ¹æ³ã ïŒ åèšçŒæã1150ã1350âã®æž©åºŠã§å®æœããã
ããšãç¹åŸŽãšããåèšç¹èš±è«æ±ã®ç¯å²ç¬¬ïŒé ä¹è³
第ïŒé ã®ããããïŒé ã«èšèŒã®æ¹æ³ã ïŒ åèšçŒææéã15åä¹è³ïŒæéã®ç¯å²ã§ãã
ããšãç¹èš±è«æ±ã®ç¯å²ç¬¬ïŒé ã«èšèŒã®æ¹æ³ã ïŒ åèšçŒææéãåèšäžæº¶æ§ç¡«é»å«æéã10ã
30ppmã«æžãããããããªæéã§ããããšãç¹
城ãšããåèšç¹èš±è«æ±ã®ç¯å²ç¬¬ïŒé ä¹è³ç¬¬ïŒé ã®
ããããïŒé ã«èšèŒã®æ¹æ³ã ïŒ åèšåºäœçæç©ããéã¯ãã é žãããªãŠã ã
æ°Žåã³ç¡«é žã¢ã³ã¢ããŠã ãŸãã¯å¡©åã¢ã³ã¢ããŠã
ãæ··åãã該混åç©ãéã¯ãã é žã¢ã³ã¢ããŠã ã®
å解枩床以äžã«å ç±ãã該çæç©ãæ°ŽæŽããŠæ°Žæº¶
æ§ç©è³ªã®å€§éšåãé€å»ããããšã«ãã圢æããã
次ãã§è©²åºäœçæç©ã1100â以äžã®æž©åºŠã§10åé
以äžãäžæº¶æ§ç¡«é»å«æéã40ppm以äžã«æžãã
ãããŸã§çŒæããããšãç¹åŸŽãšããç¹èš±è«æ±ã®ç¯
å²ç¬¬ïŒé ä¹è³ç¬¬ïŒé ã®ããããïŒé ã«èšèŒã®æ¹
æ³ã ïŒ åèšã¢ã³ã¢ããŠã å¡©ãç¡«é»ã¢ã³ã¢ããŠã ã§ã
ã0.5ãïŒmmã®ç²åŸãæããŠããããŸãåèšéã¯
ãã é žãããªãŠã ã50â65ïŒ æ°Žæº¶æ¶²ãšããŠäœ¿çšã
ããŠããããšãç¹åŸŽãšããç¹èš±è«æ±ã®ç¯å²ç¬¬ïŒé
ã«èšèŒã®æ¹æ³ã ïŒïŒ åèšåºäœçæç©ããé žå第äºã¯ãã ã§ã
ãããŸãã¯çŒæäžã«é žå第äºã¯ãã ãçæããã
äžæº¶æ§ã¯ãã ååç©ãšæ°Žæº¶æ§ç©è³ªãšã®æ··åç©ãšã
ãŠè£œé ãããŠããã氎溶æ§ç©è³ªã®å€§éšåãçŒæå
ã«äžæº¶æ§ã¯ãã ååç©ããåé¢ããããšããããš
ãç¹åŸŽãšããåèšç¹èš±è«æ±ã®ç¯å²ç¬¬ïŒé ä¹è³ç¬¬ïŒ
é ã®ããããïŒé ã®æ¹æ³ã ïŒïŒ åèšæ··åç©ãåºäœæ°Žæº¶æ§ç©è³ªãå«ã¿ã該混
åç©ã¯æ°ŽæŽãããŠåºäœæ°Žæº¶æ§ç©è³ªãäžæº¶æ§ã¯ãã
ååç©ããåé¢ããããšãç¹åŸŽãšããç¹èš±è«æ±ã®
ç¯å²ç¬¬ïŒïŒé ã«èšèŒã®æ¹æ³ã ïŒïŒ åèšæ··åç©ãå¡©åãããªãŠã ãŸãã¯ç¡«é žã
ããªãŠã ã®ååšäžã§éã¯ãã é žã¢ã³ã¢ããŠã ãçŒ
æããããšã«ãã補é ãããããšãç¹åŸŽãšããç¹
èš±è«æ±ã®ç¯å²ç¬¬ïŒïŒé èšèŒã®æ¹æ³ã ïŒïŒ åèšæ··åç©ã氎溶æ§ç¡«é žç¬¬äºã¯ãã ãšæ°Žæº¶
æ§ã¢ã«ã«ãªéå±ç¡«é žå¡©ã®æ··åç©ãçŒæããããšã«
ããåŸãããããšãç¹åŸŽãšããç¹èš±è«æ±ã®ç¯å²ç¬¬
ïŒïŒé ã«èšèŒã®æ¹æ³ã ïŒïŒ åèšæ··åç©ãéã¯ãã é žãããªãŠã ãç¡«é»
ãŸãã¯ççŽ è³ªææã§ç¡æ°Žéå ããããšã«ãã補é
ãããããšãç¹åŸŽãšããç¹èš±è«æ±ã®ç¯å²ç¬¬ïŒïŒé
ã«èšèŒã®æ¹æ³ã ïŒïŒ åèšæ··åç©ãæ°Žæ§åªäœäžã§éã¯ãã é žãã
ãªãŠã ãŸãã¯ã¯ãã é žãããªãŠã ãéå ããäžæº¶
æ§ã®å«æ°Žæ°Žé žå第äºã¯ãã ã®åœ¢ã§ã¯ãã ãæ²æ®¿ã
ããããšã«ãã€ãŠè£œé ããã該ã¯ãã å«æååç©
ã¯æ¿Ÿéã«ããå°ãªããšã氎溶æ§ç©è³ªã®å€§éšåãã
åé¢ãããããšãç¹åŸŽãšããç¹èš±è«æ±ã®ç¯å²ç¬¬ïŒ
ïŒé ã«èšèŒã®æ¹æ³ã ïŒïŒ åèšæ²æ®¿ç©ãæŽã«æ°ŽæŽãããããšãç¹åŸŽãš
ããç¹èš±è«æ±ã®ç¯å²ç¬¬ïŒïŒé ã«èšèŒã®æ¹æ³ã ïŒïŒ åèšçŒæãåºäœçæç©100KgïŒhrã®å²åã§
çå ã«ãããŠå®æœãããããšãç¹åŸŽãšããåèšç¹
èš±è«æ±ã®ç¯å²ç¬¬ïŒé ä¹è³ç¬¬ïŒïŒé ã®ããããïŒé
ã«èšèŒã®æ¹æ³ã ïŒïŒ 1100â以äžã®æž©åºŠã§ã®åèšçŒæãçŒæãã
ãçæç©ã®åµ©å¯åºŠã®å¢å€§ãçµæãšããŠããããã
ãšãç¹åŸŽãšããåèšç¹èš±è«æ±ã®ç¯å²ç¬¬ïŒé ä¹è³ç¬¬
ïŒïŒé ã®ããããïŒé ã«èšèŒã®æ¹æ³ã
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB174978 | 1978-01-17 | ||
| GB593578 | 1978-02-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54112397A JPS54112397A (en) | 1979-09-03 |
| JPS6250410B2 true JPS6250410B2 (ja) | 1987-10-24 |
Family
ID=26236952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP307279A Granted JPS54112397A (en) | 1978-01-17 | 1979-01-17 | Manufacture of low sulfur content chromic oxide |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS54112397A (ja) |
| DE (1) | DE2901736A1 (ja) |
| FR (1) | FR2414477B1 (ja) |
| IT (1) | IT1118297B (ja) |
| NL (1) | NL7900261A (ja) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH048006U (ja) * | 1990-05-09 | 1992-01-24 | ||
| JP2015199630A (ja) * | 2014-04-09 | 2015-11-12 | æ¥æ¬ååŠå·¥æ¥æ ªåŒäŒç€Ÿ | äºã¯ãã é žãããªãŠã ã®è£œé æ¹æ³ |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007089908A (ja) * | 2005-09-29 | 2007-04-12 | Miura Co Ltd | éåžžæçšæ» èè£ çœ® |
| EP2530054B1 (de) | 2009-12-22 | 2014-06-04 | LANXESS Deutschland GmbH | Verfahren zur Herstellung von Alkali-Ammoniumchromat-Doppelsalzen |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5015240A (ja) * | 1973-05-11 | 1975-02-18 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2209907A (en) * | 1938-06-29 | 1940-07-30 | Mutual Chemical Company Of Ame | Manufacture of pigments |
| GB962193A (en) * | 1961-10-23 | 1964-07-01 | Pittsburgh Plate Glass Co | Production of chromic oxide |
| US4040860A (en) * | 1975-07-09 | 1977-08-09 | Bayer Aktiengesellschaft | Chromium oxide pigment from sodium chromate dihydrate plus ammonium salt |
| DE2635086C3 (de) * | 1976-08-04 | 1980-11-06 | Bayer Ag, 5090 Leverkusen | Verfahren zur Herstellung von schwefelarmen Chrom(III)oxid |
-
1979
- 1979-01-12 NL NL7900261A patent/NL7900261A/xx not_active Application Discontinuation
- 1979-01-16 IT IT67086/79A patent/IT1118297B/it active
- 1979-01-17 DE DE19792901736 patent/DE2901736A1/de active Granted
- 1979-01-17 JP JP307279A patent/JPS54112397A/ja active Granted
- 1979-01-17 FR FR7901137A patent/FR2414477B1/fr not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5015240A (ja) * | 1973-05-11 | 1975-02-18 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH048006U (ja) * | 1990-05-09 | 1992-01-24 | ||
| JP2015199630A (ja) * | 2014-04-09 | 2015-11-12 | æ¥æ¬ååŠå·¥æ¥æ ªåŒäŒç€Ÿ | äºã¯ãã é žãããªãŠã ã®è£œé æ¹æ³ |
Also Published As
| Publication number | Publication date |
|---|---|
| IT1118297B (it) | 1986-02-24 |
| DE2901736A1 (de) | 1979-07-19 |
| DE2901736C2 (ja) | 1992-09-03 |
| IT7967086A0 (it) | 1979-01-16 |
| FR2414477A1 (fr) | 1979-08-10 |
| NL7900261A (nl) | 1979-07-19 |
| FR2414477B1 (fr) | 1985-12-20 |
| JPS54112397A (en) | 1979-09-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102537727B1 (ko) | ê·ì°ìŒ êŽë¬Œë¡ë¶í° 늬í¬ì íì | |
| US4645651A (en) | Method of producing vanadium compounds from vanadium-containing residues | |
| NO166585B (no) | Analogifremgangsmaate for fremstilling av terapeutisk aktive substituerte imidazoler. | |
| US4296076A (en) | Chromic oxide production | |
| US3983212A (en) | Alumina production | |
| US9663383B2 (en) | Process for preparing chromium(III) oxide | |
| US3838189A (en) | Two-stage process for producing soda ash from trona | |
| US9580333B2 (en) | Process for preparing chromium(III) oxide | |
| US3991160A (en) | Recovery of soda values from sodium carbonate crystallizer purge liquors | |
| US3202524A (en) | Manufacture of titanium dioxide | |
| US4235862A (en) | Production of low sulphur chromium (III) oxide | |
| JPS6250410B2 (ja) | ||
| US3658464A (en) | Molybdenum oxide refining process | |
| US2587552A (en) | Process for obtaining chromic oxide from a chromate ore | |
| US2204454A (en) | Process for decomposing zirconium ore | |
| US2951743A (en) | Process of making alumina | |
| US4006080A (en) | Process for the treatment of acidic waste liquid containing dissolved salts | |
| US3438724A (en) | Manufacture of chromium spinels | |
| US3819800A (en) | Alkali metal chromate production | |
| US2402471A (en) | Calcining alum | |
| JPS5835935B2 (ja) | ç¡é žã¹ããã³ããŠã ã®è£œæ³ | |
| GB2221901A (en) | Titanium dioxide pigment | |
| US3018168A (en) | Process for production of barium silicates containing water-soluble barium values form barite | |
| US2837403A (en) | Production of potassium carbonate | |
| US2987405A (en) | Treatment of aluminosilicates |