CS248963B1 - Magnesium oxide and/or its hydratation's products making method - Google Patents

Magnesium oxide and/or its hydratation's products making method Download PDF

Info

Publication number: CS248963B1
Authority: CS; Czechoslovakia
Prior art keywords: oxide; calcium; weight; parts; solution
Prior art date: 1983-12-27

Application number

CS839911A

Other languages

Czech (cs)

English (en)

Slovak (sk)

Inventor

Miroslav Zikmund

Vendelin Macho

Cestmir Hybl

Original Assignee

Miroslav Zikmund

Vendelin Macho

Cestmir Hybl

Priority date (The priority date 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 date listed.)

1983-12-27

Filing date

1983-12-27

Publication date

1987-03-12

1983-12-27 Application filed by Miroslav Zikmund, Vendelin Macho, Cestmir Hybl filed Critical Miroslav Zikmund

1983-12-27 Priority to CS839911A priority Critical patent/CS248963B1/cs

1986-07-01 Priority to DD86292090A priority patent/DD262137A3/de

1987-03-12 Publication of CS248963B1 publication Critical patent/CS248963B1/cs

Links

CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 title claims description 80
239000000395 magnesium oxide Substances 0.000 title claims description 60
AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 title claims description 38
238000000034 method Methods 0.000 title claims description 25
235000012245 magnesium oxide Nutrition 0.000 claims description 60
VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 57
CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 40
239000000047 product Substances 0.000 claims description 35
239000000243 solution Substances 0.000 claims description 30
229910000019 calcium carbonate Inorganic materials 0.000 claims description 28
235000012255 calcium oxide Nutrition 0.000 claims description 28
239000000292 calcium oxide Substances 0.000 claims description 27
ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 27
239000000203 mixture Substances 0.000 claims description 27
230000036571 hydration Effects 0.000 claims description 25
238000006703 hydration reaction Methods 0.000 claims description 25
BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 23
229910002092 carbon dioxide Inorganic materials 0.000 claims description 20
VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 19
239000001569 carbon dioxide Substances 0.000 claims description 19
238000002386 leaching Methods 0.000 claims description 18
238000004519 manufacturing process Methods 0.000 claims description 16
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
150000003839 salts Chemical class 0.000 claims description 12
HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 claims description 11
239000011575 calcium Substances 0.000 claims description 11
229910052681 coesite Inorganic materials 0.000 claims description 11
229910052906 cristobalite Inorganic materials 0.000 claims description 11
239000000706 filtrate Substances 0.000 claims description 11
238000003756 stirring Methods 0.000 claims description 11
229910052682 stishovite Inorganic materials 0.000 claims description 11
229910052905 tridymite Inorganic materials 0.000 claims description 11
OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 10
FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 10
239000007864 aqueous solution Substances 0.000 claims description 10
229910052791 calcium Inorganic materials 0.000 claims description 10
238000001914 filtration Methods 0.000 claims description 10
239000006028 limestone Substances 0.000 claims description 10
229910052749 magnesium Inorganic materials 0.000 claims description 10
239000011777 magnesium Substances 0.000 claims description 10
239000002994 raw material Substances 0.000 claims description 10
238000005979 thermal decomposition reaction Methods 0.000 claims description 9
229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 8
238000006243 chemical reaction Methods 0.000 claims description 8
239000000377 silicon dioxide Substances 0.000 claims description 8
235000012239 silicon dioxide Nutrition 0.000 claims description 8
239000002244 precipitate Substances 0.000 claims description 7
239000000126 substance Substances 0.000 claims description 7
QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 6
ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 claims description 6
JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 6
150000007522 mineralic acids Chemical class 0.000 claims description 6
150000007524 organic acids Chemical class 0.000 claims description 6
238000000926 separation method Methods 0.000 claims description 6
150000003973 alkyl amines Chemical class 0.000 claims description 5
PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 5
239000000920 calcium hydroxide Substances 0.000 claims description 5
229910001861 calcium hydroxide Inorganic materials 0.000 claims description 5
238000001035 drying Methods 0.000 claims description 5
ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims description 5
239000001095 magnesium carbonate Substances 0.000 claims description 5
235000014380 magnesium carbonate Nutrition 0.000 claims description 5
229910000021 magnesium carbonate Inorganic materials 0.000 claims description 5
238000005406 washing Methods 0.000 claims description 5
241001669679 Eleotris Species 0.000 claims description 4
238000000137 annealing Methods 0.000 claims description 4
AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 4
238000005119 centrifugation Methods 0.000 claims description 4
BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 claims description 4
239000007787 solid Substances 0.000 claims description 4
239000007858 starting material Substances 0.000 claims description 4
PMUNIMVZCACZBB-UHFFFAOYSA-N 2-hydroxyethylazanium;chloride Chemical compound Cl.NCCO PMUNIMVZCACZBB-UHFFFAOYSA-N 0.000 claims description 3
VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical class Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 3
GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 3
229910052799 carbon Inorganic materials 0.000 claims description 3
UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 3
229910017604 nitric acid Inorganic materials 0.000 claims description 3
150000007530 organic bases Chemical group 0.000 claims description 3
XTHLNJJMYLLKPD-UHFFFAOYSA-N 2-aminoethanol;carbonic acid Chemical compound NCCO.OC(O)=O XTHLNJJMYLLKPD-UHFFFAOYSA-N 0.000 claims description 2
IKAHFTWDTODWID-UHFFFAOYSA-N 2-hydroxyethylazanium;formate Chemical compound [O-]C=O.[NH3+]CCO IKAHFTWDTODWID-UHFFFAOYSA-N 0.000 claims description 2
OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 claims description 2
CBOCVOKPQGJKKJ-UHFFFAOYSA-L Calcium formate Chemical compound [Ca+2].[O-]C=O.[O-]C=O CBOCVOKPQGJKKJ-UHFFFAOYSA-L 0.000 claims description 2
239000004281 calcium formate Substances 0.000 claims description 2
229940044172 calcium formate Drugs 0.000 claims description 2
235000019255 calcium formate Nutrition 0.000 claims description 2
229910052593 corundum Inorganic materials 0.000 claims description 2
LRCFXGAMWKDGLA-UHFFFAOYSA-N dioxosilane;hydrate Chemical compound O.O=[Si]=O LRCFXGAMWKDGLA-UHFFFAOYSA-N 0.000 claims description 2
235000019253 formic acid Nutrition 0.000 claims description 2
VEIWYFRREFUNRC-UHFFFAOYSA-N hydron;piperidine;chloride Chemical compound [Cl-].C1CC[NH2+]CC1 VEIWYFRREFUNRC-UHFFFAOYSA-N 0.000 claims description 2
239000000843 powder Substances 0.000 claims description 2
229960004029 silicic acid Drugs 0.000 claims description 2
229910001845 yogo sapphire Inorganic materials 0.000 claims description 2
235000010216 calcium carbonate Nutrition 0.000 claims 7
OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
HHSPVTKDOHQBKF-UHFFFAOYSA-J calcium;magnesium;dicarbonate Chemical compound [Mg+2].[Ca+2].[O-]C([O-])=O.[O-]C([O-])=O HHSPVTKDOHQBKF-UHFFFAOYSA-J 0.000 claims 1
239000006229 carbon black Substances 0.000 claims 1
239000003518 caustics Substances 0.000 claims 1
239000003960 organic solvent Substances 0.000 claims 1
NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 claims 1
239000010459 dolomite Substances 0.000 description 18
229910000514 dolomite Inorganic materials 0.000 description 18
IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 14
235000019738 Limestone Nutrition 0.000 description 9
XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
229910052757 nitrogen Inorganic materials 0.000 description 7
239000002253 acid Substances 0.000 description 5
239000000347 magnesium hydroxide Substances 0.000 description 5
229910001862 magnesium hydroxide Inorganic materials 0.000 description 5
BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 4
VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 4
-1 pharmaceutical Substances 0.000 description 4
XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
150000007513 acids Chemical class 0.000 description 3
150000001875 compounds Chemical class 0.000 description 3
239000000470 constituent Substances 0.000 description 3
239000007789 gas Substances 0.000 description 3
XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 3
229910052742 iron Inorganic materials 0.000 description 3
125000001477 organic nitrogen group Chemical group 0.000 description 3
239000004033 plastic Substances 0.000 description 3
229920003023 plastic Polymers 0.000 description 3
229910052710 silicon Inorganic materials 0.000 description 3
239000010703 silicon Substances 0.000 description 3
238000011282 treatment Methods 0.000 description 3
XXJGBENTLXFVFI-UHFFFAOYSA-N 1-amino-methylene Chemical compound N[CH2] XXJGBENTLXFVFI-UHFFFAOYSA-N 0.000 description 2
UUFQTNFCRMXOAE-UHFFFAOYSA-N 1-methylmethylene Chemical compound C[CH] UUFQTNFCRMXOAE-UHFFFAOYSA-N 0.000 description 2
QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical group N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 2
UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
NQRYJNQNLNOLGT-UHFFFAOYSA-N Piperidine Chemical compound C1CCNCC1 NQRYJNQNLNOLGT-UHFFFAOYSA-N 0.000 description 2
239000000654 additive Substances 0.000 description 2
230000000996 additive effect Effects 0.000 description 2
AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 2
VZTDIZULWFCMLS-UHFFFAOYSA-N ammonium formate Chemical compound [NH4+].[O-]C=O VZTDIZULWFCMLS-UHFFFAOYSA-N 0.000 description 2
229940043430 calcium compound Drugs 0.000 description 2
150000001674 calcium compounds Chemical class 0.000 description 2
159000000007 calcium salts Chemical class 0.000 description 2
150000004649 carbonic acid derivatives Chemical class 0.000 description 2
239000003054 catalyst Substances 0.000 description 2
238000007796 conventional method Methods 0.000 description 2
239000003344 environmental pollutant Substances 0.000 description 2
238000000227 grinding Methods 0.000 description 2
159000000003 magnesium salts Chemical class 0.000 description 2
VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
235000005985 organic acids Nutrition 0.000 description 2
231100000719 pollutant Toxicity 0.000 description 2
238000002360 preparation method Methods 0.000 description 2
239000000725 suspension Substances 0.000 description 2
UYBWIEGTWASWSR-UHFFFAOYSA-N 1,3-diaminopropan-2-ol Chemical compound NCC(O)CN UYBWIEGTWASWSR-UHFFFAOYSA-N 0.000 description 1
HXKKHQJGJAFBHI-UHFFFAOYSA-N 1-aminopropan-2-ol Chemical compound CC(O)CN HXKKHQJGJAFBHI-UHFFFAOYSA-N 0.000 description 1
PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 1
GFIWSSUBVYLTRF-UHFFFAOYSA-N 2-[2-(2-hydroxyethylamino)ethylamino]ethanol Chemical compound OCCNCCNCCO GFIWSSUBVYLTRF-UHFFFAOYSA-N 0.000 description 1
125000000954 2-hydroxyethyl group Chemical group [H]C([*])([H])C([H])([H])O[H] 0.000 description 1
VVLAIYIMMFWRFW-UHFFFAOYSA-N 2-hydroxyethylazanium;acetate Chemical compound CC(O)=O.NCCO VVLAIYIMMFWRFW-UHFFFAOYSA-N 0.000 description 1
USFZMSVCRYTOJT-UHFFFAOYSA-N Ammonium acetate Chemical compound N.CC(O)=O USFZMSVCRYTOJT-UHFFFAOYSA-N 0.000 description 1
239000005695 Ammonium acetate Substances 0.000 description 1
241000700198 Cavia Species 0.000 description 1
PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
GXCLVBGFBYZDAG-UHFFFAOYSA-N N-[2-(1H-indol-3-yl)ethyl]-N-methylprop-2-en-1-amine Chemical compound CN(CCC1=CNC2=C1C=CC=C2)CC=C GXCLVBGFBYZDAG-UHFFFAOYSA-N 0.000 description 1
229910002651 NO3 Inorganic materials 0.000 description 1
NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
229910000831 Steel Inorganic materials 0.000 description 1
QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
CPGKMLVTFNUAHL-UHFFFAOYSA-N [Ca].[Ca] Chemical compound [Ca].[Ca] CPGKMLVTFNUAHL-UHFFFAOYSA-N 0.000 description 1
229910052782 aluminium Inorganic materials 0.000 description 1
XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
LHIJANUOQQMGNT-UHFFFAOYSA-N aminoethylethanolamine Chemical compound NCCNCCO LHIJANUOQQMGNT-UHFFFAOYSA-N 0.000 description 1
229910021529 ammonia Inorganic materials 0.000 description 1
235000019257 ammonium acetate Nutrition 0.000 description 1
229940043376 ammonium acetate Drugs 0.000 description 1
235000019270 ammonium chloride Nutrition 0.000 description 1
150000003863 ammonium salts Chemical class 0.000 description 1
150000001450 anions Chemical class 0.000 description 1
239000011822 basic refractory Substances 0.000 description 1
VJLOFJZWUDZJBX-UHFFFAOYSA-N bis(2-hydroxyethyl)azanium;chloride Chemical compound [Cl-].OCC[NH2+]CCO VJLOFJZWUDZJBX-UHFFFAOYSA-N 0.000 description 1
238000005422 blasting Methods 0.000 description 1
244000309466 calf Species 0.000 description 1
125000004432 carbon atom Chemical group C* 0.000 description 1
229910002091 carbon monoxide Inorganic materials 0.000 description 1
239000000919 ceramic Substances 0.000 description 1
238000001311 chemical methods and process Methods 0.000 description 1
239000013064 chemical raw material Substances 0.000 description 1
239000002537 cosmetic Substances 0.000 description 1
238000010908 decantation Methods 0.000 description 1
230000018044 dehydration Effects 0.000 description 1
238000006297 dehydration reaction Methods 0.000 description 1
230000008021 deposition Effects 0.000 description 1
125000000816 ethylene group Chemical group [H]C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
238000000605 extraction Methods 0.000 description 1
239000000945 filler Substances 0.000 description 1
BOZAGLYGUSSJHG-UHFFFAOYSA-N formic acid;2-(2-hydroxyethylamino)ethanol Chemical compound OC=O.OCCNCCO BOZAGLYGUSSJHG-UHFFFAOYSA-N 0.000 description 1
238000010438 heat treatment Methods 0.000 description 1
125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
239000011261 inert gas Substances 0.000 description 1
238000011221 initial treatment Methods 0.000 description 1
229910052500 inorganic mineral Inorganic materials 0.000 description 1
230000003993 interaction Effects 0.000 description 1
239000012633 leachable Substances 0.000 description 1
150000002681 magnesium compounds Chemical class 0.000 description 1
239000011419 magnesium lime Substances 0.000 description 1
UHNWOJJPXCYKCG-UHFFFAOYSA-L magnesium oxalate Chemical compound [Mg+2].[O-]C(=O)C([O-])=O UHNWOJJPXCYKCG-UHFFFAOYSA-L 0.000 description 1
NEKPCAYWQWRBHN-UHFFFAOYSA-L magnesium;carbonate;trihydrate Chemical compound O.O.O.[Mg+2].[O-]C([O-])=O NEKPCAYWQWRBHN-UHFFFAOYSA-L 0.000 description 1
LPHFLPKXBKBHRW-UHFFFAOYSA-L magnesium;hydrogen sulfite Chemical compound [Mg+2].OS([O-])=O.OS([O-])=O LPHFLPKXBKBHRW-UHFFFAOYSA-L 0.000 description 1
229910052748 manganese Inorganic materials 0.000 description 1
239000011572 manganese Substances 0.000 description 1
239000000463 material Substances 0.000 description 1
229910052751 metal Inorganic materials 0.000 description 1
239000002184 metal Substances 0.000 description 1
235000010755 mineral Nutrition 0.000 description 1
239000011707 mineral Substances 0.000 description 1
238000002156 mixing Methods 0.000 description 1
239000004570 mortar (masonry) Substances 0.000 description 1
QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
150000002897 organic nitrogen compounds Chemical class 0.000 description 1
239000002245 particle Substances 0.000 description 1
239000003208 petroleum Substances 0.000 description 1
239000000049 pigment Substances 0.000 description 1
229940088417 precipitated calcium carbonate Drugs 0.000 description 1
238000001556 precipitation Methods 0.000 description 1
238000010926 purge Methods 0.000 description 1
238000000746 purification Methods 0.000 description 1
238000004064 recycling Methods 0.000 description 1
238000007670 refining Methods 0.000 description 1
230000001172 regenerating effect Effects 0.000 description 1
239000012266 salt solution Substances 0.000 description 1
239000002002 slurry Substances 0.000 description 1
239000010959 steel Substances 0.000 description 1
229910021653 sulphate ion Inorganic materials 0.000 description 1
239000002351 wastewater Substances 0.000 description 1

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Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

CS839911A 1983-12-27 1983-12-27 Magnesium oxide and/or its hydratation's products making method CS248963B1 (en)

Priority Applications (2)

Application Number	Priority Date	Filing Date	Title
CS839911A CS248963B1 (en)	1983-12-27	1983-12-27	Magnesium oxide and/or its hydratation's products making method
DD86292090A DD262137A3 (de)	1983-12-27	1986-07-01	Verfahren zur herstellung von magnesiumoxid und/oder von seinen hydratationsprodukten

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
CS839911A CS248963B1 (en)	1983-12-27	1983-12-27	Magnesium oxide and/or its hydratation's products making method
DD86292090A DD262137A3 (de)	1983-12-27	1986-07-01	Verfahren zur herstellung von magnesiumoxid und/oder von seinen hydratationsprodukten

Publications (1)

Publication Number	Publication Date
CS248963B1 true CS248963B1 (en)	1987-03-12

Family

ID=25746659

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CS839911A CS248963B1 (en)	1983-12-27	1983-12-27	Magnesium oxide and/or its hydratation's products making method

Country Status (2)

Country	Link
CS (1)	CS248963B1 (de)
DD (1)	DD262137A3 (de)

1983
- 1983-12-27 CS CS839911A patent/CS248963B1/cs unknown
1986
- 1986-07-01 DD DD86292090A patent/DD262137A3/de not_active IP Right Cessation

Also Published As

Publication number	Publication date
DD262137A3 (de)	1988-11-23

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