CN115784660A - Composition containing polyether refined adsorbent slag and application thereof - Google Patents
Composition containing polyether refined adsorbent slag and application thereof Download PDFInfo
- Publication number
- CN115784660A CN115784660A CN202211671471.6A CN202211671471A CN115784660A CN 115784660 A CN115784660 A CN 115784660A CN 202211671471 A CN202211671471 A CN 202211671471A CN 115784660 A CN115784660 A CN 115784660A
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- Prior art keywords
- cement
- slag
- polyether
- percent
- composition
- Prior art date
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- Granted
Links
- 239000004721 Polyphenylene oxide Substances 0.000 title claims abstract description 82
- 229920000570 polyether Polymers 0.000 title claims abstract description 82
- 239000003463 adsorbent Substances 0.000 title claims abstract description 66
- 239000000203 mixture Substances 0.000 title claims abstract description 65
- 239000002893 slag Substances 0.000 title claims abstract description 65
- 239000004568 cement Substances 0.000 claims abstract description 157
- 238000000227 grinding Methods 0.000 claims abstract description 70
- -1 alcohol amine Chemical class 0.000 claims abstract description 43
- 229920005862 polyol Polymers 0.000 claims abstract description 32
- 150000003077 polyols Chemical class 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 claims abstract description 20
- 150000001412 amines Chemical class 0.000 claims abstract description 18
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000007670 refining Methods 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 28
- 239000003638 chemical reducing agent Substances 0.000 claims description 21
- 239000002594 sorbent Substances 0.000 claims description 17
- 238000002156 mixing Methods 0.000 claims description 14
- 150000003839 salts Chemical class 0.000 claims description 13
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 6
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 6
- 150000002148 esters Chemical class 0.000 claims description 6
- 229910017053 inorganic salt Inorganic materials 0.000 claims description 6
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 5
- RGHNJXZEOKUKBD-SQOUGZDYSA-N D-gluconic acid Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O RGHNJXZEOKUKBD-SQOUGZDYSA-N 0.000 claims description 4
- 229910019142 PO4 Inorganic materials 0.000 claims description 4
- 239000010452 phosphate Substances 0.000 claims description 4
- 150000005846 sugar alcohols Polymers 0.000 claims description 4
- AMQJEAYHLZJPGS-UHFFFAOYSA-N N-Pentanol Chemical compound CCCCCO AMQJEAYHLZJPGS-UHFFFAOYSA-N 0.000 claims description 3
- WPJGWJITSIEFRP-UHFFFAOYSA-N 1,3,5-triazine-2,4,6-triamine;hydrate Chemical compound O.NC1=NC(N)=NC(N)=N1 WPJGWJITSIEFRP-UHFFFAOYSA-N 0.000 claims description 2
- BFIAIMMAHAIVFT-UHFFFAOYSA-N 1-[bis(2-hydroxybutyl)amino]butan-2-ol Chemical compound CCC(O)CN(CC(O)CC)CC(O)CC BFIAIMMAHAIVFT-UHFFFAOYSA-N 0.000 claims description 2
- DYTDSIGLARMTBN-UHFFFAOYSA-N 2-(1-aminopropan-2-ylamino)ethane-1,1,1,2-tetrol Chemical compound NCC(C)NC(O)C(O)(O)O DYTDSIGLARMTBN-UHFFFAOYSA-N 0.000 claims description 2
- BYACHAOCSIPLCM-UHFFFAOYSA-N 2-[2-[bis(2-hydroxyethyl)amino]ethyl-(2-hydroxyethyl)amino]ethanol Chemical compound OCCN(CCO)CCN(CCO)CCO BYACHAOCSIPLCM-UHFFFAOYSA-N 0.000 claims description 2
- CBWWDLVUGQLJRL-UHFFFAOYSA-N 3-[2-aminoethyl(2-hydroxyethyl)amino]propan-1-ol Chemical compound NCCN(CCO)CCCO CBWWDLVUGQLJRL-UHFFFAOYSA-N 0.000 claims description 2
- KHVRVMNAIOMPPB-UHFFFAOYSA-N 5-aminopentane-1,1,4-triol Chemical compound NCC(O)CCC(O)O KHVRVMNAIOMPPB-UHFFFAOYSA-N 0.000 claims description 2
- KXDHJXZQYSOELW-UHFFFAOYSA-N Carbamic acid Chemical class NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 claims description 2
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 claims description 2
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 claims description 2
- RGHNJXZEOKUKBD-UHFFFAOYSA-N D-gluconic acid Natural products OCC(O)C(O)C(O)C(O)C(O)=O RGHNJXZEOKUKBD-UHFFFAOYSA-N 0.000 claims description 2
- 229920001732 Lignosulfonate Polymers 0.000 claims description 2
- AKNUHUCEWALCOI-UHFFFAOYSA-N N-ethyldiethanolamine Chemical compound OCCN(CC)CCO AKNUHUCEWALCOI-UHFFFAOYSA-N 0.000 claims description 2
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical group OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 2
- SLINHMUFWFWBMU-UHFFFAOYSA-N Triisopropanolamine Chemical compound CC(O)CN(CC(C)O)CC(C)O SLINHMUFWFWBMU-UHFFFAOYSA-N 0.000 claims description 2
- TVXBFESIOXBWNM-UHFFFAOYSA-N Xylitol Natural products OCCC(O)C(O)C(O)CCO TVXBFESIOXBWNM-UHFFFAOYSA-N 0.000 claims description 2
- 125000001931 aliphatic group Chemical group 0.000 claims description 2
- 229910021538 borax Inorganic materials 0.000 claims description 2
- 239000004227 calcium gluconate Substances 0.000 claims description 2
- 229960004494 calcium gluconate Drugs 0.000 claims description 2
- 235000013927 calcium gluconate Nutrition 0.000 claims description 2
- NEEHYRZPVYRGPP-UHFFFAOYSA-L calcium;2,3,4,5,6-pentahydroxyhexanoate Chemical compound [Ca+2].OCC(O)C(O)C(O)C(O)C([O-])=O.OCC(O)C(O)C(O)C(O)C([O-])=O NEEHYRZPVYRGPP-UHFFFAOYSA-L 0.000 claims description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical class OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 claims description 2
- 150000002170 ethers Chemical class 0.000 claims description 2
- 239000000174 gluconic acid Substances 0.000 claims description 2
- 235000012208 gluconic acid Nutrition 0.000 claims description 2
- HEBKCHPVOIAQTA-UHFFFAOYSA-N meso ribitol Natural products OCC(O)C(O)C(O)CO HEBKCHPVOIAQTA-UHFFFAOYSA-N 0.000 claims description 2
- 125000005341 metaphosphate group Chemical group 0.000 claims description 2
- CRVGTESFCCXCTH-UHFFFAOYSA-N methyl diethanolamine Chemical compound OCCN(C)CCO CRVGTESFCCXCTH-UHFFFAOYSA-N 0.000 claims description 2
- DCNHVBSAFCNMBK-UHFFFAOYSA-N naphthalene-1-sulfonic acid;hydrate Chemical compound O.C1=CC=C2C(S(=O)(=O)O)=CC=CC2=C1 DCNHVBSAFCNMBK-UHFFFAOYSA-N 0.000 claims description 2
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 2
- 125000002467 phosphate group Chemical group [H]OP(=O)(O[H])O[*] 0.000 claims description 2
- 239000004328 sodium tetraborate Substances 0.000 claims description 2
- 235000010339 sodium tetraborate Nutrition 0.000 claims description 2
- 239000000600 sorbitol Substances 0.000 claims description 2
- IIACRCGMVDHOTQ-UHFFFAOYSA-N sulfamic acid Chemical compound NS(O)(=O)=O IIACRCGMVDHOTQ-UHFFFAOYSA-N 0.000 claims description 2
- 239000000811 xylitol Substances 0.000 claims description 2
- HEBKCHPVOIAQTA-SCDXWVJYSA-N xylitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)CO HEBKCHPVOIAQTA-SCDXWVJYSA-N 0.000 claims description 2
- 235000010447 xylitol Nutrition 0.000 claims description 2
- 229960002675 xylitol Drugs 0.000 claims description 2
- 229940102253 isopropanolamine Drugs 0.000 claims 2
- NSOXQYCFHDMMGV-UHFFFAOYSA-N Tetrakis(2-hydroxypropyl)ethylenediamine Chemical compound CC(O)CN(CC(C)O)CCN(CC(C)O)CC(C)O NSOXQYCFHDMMGV-UHFFFAOYSA-N 0.000 claims 1
- 239000000654 additive Substances 0.000 abstract description 7
- 230000000052 comparative effect Effects 0.000 description 24
- 239000000463 material Substances 0.000 description 21
- 238000012360 testing method Methods 0.000 description 14
- 239000000843 powder Substances 0.000 description 13
- 239000010440 gypsum Substances 0.000 description 12
- 229910052602 gypsum Inorganic materials 0.000 description 12
- 238000007873 sieving Methods 0.000 description 12
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 11
- 239000000391 magnesium silicate Substances 0.000 description 11
- 229910052919 magnesium silicate Inorganic materials 0.000 description 11
- 235000019792 magnesium silicate Nutrition 0.000 description 11
- 239000011398 Portland cement Substances 0.000 description 9
- 235000019738 Limestone Nutrition 0.000 description 8
- 239000006028 limestone Substances 0.000 description 8
- 239000002994 raw material Substances 0.000 description 7
- 239000002904 solvent Substances 0.000 description 7
- 230000000996 additive effect Effects 0.000 description 5
- 239000003245 coal Substances 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 239000003054 catalyst Substances 0.000 description 3
- 239000000306 component Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- 239000010881 fly ash Substances 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 235000010755 mineral Nutrition 0.000 description 3
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000002910 solid waste Substances 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 2
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 239000003125 aqueous solvent Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- ZZVUWRFHKOJYTH-UHFFFAOYSA-N diphenhydramine Chemical compound C=1C=CC=CC=1C(OCCN(C)C)C1=CC=CC=C1 ZZVUWRFHKOJYTH-UHFFFAOYSA-N 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000036571 hydration Effects 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 239000002798 polar solvent Substances 0.000 description 2
- BITYAPCSNKJESK-UHFFFAOYSA-N potassiosodium Chemical compound [Na].[K] BITYAPCSNKJESK-UHFFFAOYSA-N 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910001415 sodium ion Inorganic materials 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- QOHLUDZUYJMPBH-UHFFFAOYSA-N 1-n,1-n,2-n,2-n-tetrahydroxypropane-1,2-diamine Chemical compound ON(O)C(C)CN(O)O QOHLUDZUYJMPBH-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-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
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical compound OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- ZMZDMBWJUHKJPS-UHFFFAOYSA-M Thiocyanate anion Chemical compound [S-]C#N ZMZDMBWJUHKJPS-UHFFFAOYSA-M 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- OBNDGIHQAIXEAO-UHFFFAOYSA-N [O].[Si] Chemical compound [O].[Si] OBNDGIHQAIXEAO-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 229910001413 alkali metal ion Inorganic materials 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- 125000005587 carbonate group Chemical group 0.000 description 1
- 238000005341 cation exchange Methods 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- ZMZDMBWJUHKJPS-UHFFFAOYSA-N hydrogen thiocyanate Natural products SC#N ZMZDMBWJUHKJPS-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- XCOBTUNSZUJCDH-UHFFFAOYSA-B lithium magnesium sodium silicate Chemical group [Li+].[Li+].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Na+].[Na+].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3.O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3.O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3.O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3.O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3.O1[Si](O2)([O-])O[Si]3([O-])O[Si]1([O-])O[Si]2([O-])O3 XCOBTUNSZUJCDH-UHFFFAOYSA-B 0.000 description 1
- UEZVMMHDMIWARA-UHFFFAOYSA-M phosphonate Chemical compound [O-]P(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-M 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910001414 potassium ion Inorganic materials 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229910000031 sodium sesquicarbonate Inorganic materials 0.000 description 1
- 235000018341 sodium sesquicarbonate Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- WCTAGTRAWPDFQO-UHFFFAOYSA-K trisodium;hydrogen carbonate;carbonate Chemical compound [Na+].[Na+].[Na+].OC([O-])=O.[O-]C([O-])=O WCTAGTRAWPDFQO-UHFFFAOYSA-K 0.000 description 1
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a composition containing polyether refined adsorbent slag and application thereof in a cement grinding process, and belongs to the technical field of cement grinding process additives. The composition consists of polyether refined adsorbent slag and an alcohol-containing amine cement grinding aid, wherein the mass ratio of the polyether refined adsorbent slag to the alcohol-containing amine cement grinding aid is (10-40); the polyether refined adsorbent slag is generated in a polyether polyol refining process. According to the invention, the composition of the polyether refined adsorbent slag and the alcohol amine-containing cement grinding aid is applied to the cement grinding process, and compared with the single application of the adsorbent slag or the alcohol amine-containing cement grinding aid, the compressive strength of the cement is obviously improved, and the quality of the cement is improved.
Description
Technical Field
The invention belongs to the technical field of cement grinding process additives, and particularly relates to a composition containing polyether refined adsorbent slag and application thereof in a cement grinding process.
Background
Magnesium silicate is a silicate consisting of silicon-oxygen tetrahedra and magnesium-oxygen octahedra. The magnesium silicate adsorbent is a synthetic magnesium silicate with a porous structure, and is applied to the adsorbent for refining organic matters on a large scale. The magnesium silicate adsorbent is a porous material with high specific surface area, good thermal stability, good salt resistance, corrosion resistance, acid and alkali resistance and radiation resistance. Has cation exchange property and is an adsorbent with excellent performance.
The magnesium silicate adsorbent is an inorganic adsorbent for refining polyether polyol, and has the function of removing potassium and sodium ions, pigments and impurities in crude polyether polyol. The main quality indexes of the polyether polyol are determined as follows: water content, acid value, K + 、Na + Content, chroma. The polyether polyol is prepared by reacting an alkali metal ion as a catalyst and a polyol or an amine as an initiator with an alkylene oxide at a certain temperature and pressure. Adding magnesium silicate adsorbent into the crude polyether polyol to remove residual catalyst, reducing chroma, and filtering to obtain filtrate as polyether polyol and filter residue as polyether refined adsorbent residue containing polyether polyol.
The filter residue comprises the following main components: magnesium silicate adsorbent, residual catalyst (mainly potassium hydroxide or potassium salt), polyether polyol and a small amount of water. The treatment of the filter residue is generally carried out by the following routes:
firstly, the solid waste is treated and entrusted to a third party, the payment treatment is generally carried out by adopting incineration, and gas is discharged into the atmosphere and has certain negative influence on the atmospheric environment; the solid residue is mainly magnesium silicate and secondarily potassium sodium salt, and is used as a solid filler or is used as solid waste for landfill, so that the solid residue has certain negative effects on the global environment.
And secondly, recycling. Washing the filter residue with a solvent, washing out residual polyether polyol, removing the solvent, recovering the polyether polyol for utilization, treating the residual secondary waste residue as solid waste, and entrusting a third party for payment treatment. The solvent used may be a polar solvent or water. If a polar solvent is used, the polyether polyol is washed out, the removed solvent needs to be treated after the solvent is removed, and the amount of the used solvent is generally large, so that new cost is caused; if the solvent is water, polyether polyol and potassium-sodium alkali salt are washed out simultaneously, the potassium-sodium ion content of polyether polyol is high, the requirement of recycling quality index cannot be met, a non-aqueous solvent is required for extraction and separation, and finally the non-aqueous solvent is required to be removed, so that new cost is caused.
The polyether refined adsorbent slag containing polyether polyol produced after polyether polyol refining needs to pay environmental protection cost and larger economic cost no matter which method is adopted. Not only causes environmental pressure, but also causes resource waste.
In summary, the treatment of polyether refined adsorbent slag containing polyether polyol is an industry difficulty.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a composition containing polyether refined adsorbent slag and application thereof, aiming at the defects of the prior art. When the polyether refined adsorbent slag and the alcohol-containing amine cement grinding aid composition are used for portland cement, the compressive strength of the portland cement is greatly improved.
The technical scheme is as follows: the purpose of the invention is realized by the following technical scheme:
the invention provides a composition containing polyether refined adsorbent slag, which consists of polyether refined adsorbent slag and an alcohol-containing amine cement grinding aid, wherein the mass ratio of the polyether refined adsorbent slag to the alcohol-containing amine cement grinding aid is 10-40; the polyether refined adsorbent slag is generated in a polyether polyol refining process.
The polyether refined adsorbent slag contains residual polyether polyol, a magnesium silicate adsorbent, potassium salt and alkali thereof.
The refined polyether adsorbent slag also contains potassium salt or alkali which is not higher than 20%.
The polyether refined adsorbent slag also contains no more than 5% of water.
The magnesium silicate adsorbent is an artificially synthesized porous magnesium silicate material.
The polyether polyol contained in the polyether refined adsorbent slag is polyether polyol used in the polyurethane industry, is polyether polyol remained in the adsorbent in the polyether polyol product refining process, and is a polyol ether industrial product.
Preferably, the cement grinding aid containing the alcohol amine at least contains one of hydroxyalkyl tertiary amine or salt or ester thereof.
The hydroxyalkyl tertiary amine salt in the invention is hydrochloride or acetate.
The hydroxyalkyl tertiary amine ester in the invention is acetate, acrylate, sulfonate, silicate, titanate, phosphate or borate.
Further preferably, the hydroxyalkyl tertiary amine is triethanolamine, triisopropanolamine, tributanolamine, dihydroxyethyl monoisopropanolamine, dihydroxypropyl monoethanolamine, tetrahydroxyethylethylenediamine, tetrahydroxyethylpropylenediamine, tetrahydroxypropylenediamine, hydroxyethylhydroxypropylethylenediamine, hydroxyethylhydroxypropylpropylenediamine, methyldiethanolamine, methyldiisopropanolamine, ethyldiethanolamine, ethyldiisopropanolamine, methylhydroxyethylisopropanolamine or ethylhydroxyethylisopropanolamine.
Further, the cement grinding aid containing the hydramine comprises a combination of hydroxyalkyl tertiary amine and salt or ester thereof and polyalcohol, inorganic salt, water reducing agent and retarder. 25 to 40 percent of hydroxyalkyl tertiary amine and salt or ester thereof, 5 to 10 percent of polyhydric alcohol, 2 to 5 percent of inorganic salt, 0 to 1 percent of water reducing agent, 1 to 3 percent of retarder and 46 to 57 percent of water. Because the cement is a hydraulic cementing material consisting of a plurality of mineral phases, the structural characteristics of each mineral phase are different, and the absorption and dispersion rules of the cement to each substance are different; the influence degree of each compound on each mineral phase is different in the cement hydration process. The polyol, the inorganic salt, the water reducing agent and the retarder are common components of grinding aid formulas verified by practice, and have the auxiliary effects of improving the dispersibility, adjusting the coagulation and promoting the improvement of the strength; the alcohol amine is a core component for the grinding aid to achieve the effect, and plays the main roles of grinding aid dispersion, promoting hydration and improving strength.
Further, the polyhydric alcohol is ethylene glycol, propylene glycol, glycerin, amyl alcohol, pentaerythritol, xylitol, sorbitol and ethers thereof.
The inorganic salt is carbonate, halide, sulfate, thiocyanate, phosphate, borate, silicate or nitrate.
The water reducing agent is a polycarboxylic acid water reducing agent, a naphthalene sulfonate water reducing agent, a lignosulfonate water reducing agent, a calcium gluconate water reducing agent, an aminosulfonic acid water reducing agent, an aliphatic water reducing agent or a melamine water reducing agent.
The retarder is phosphate, metaphosphate, borax, sodium fluosilicate, organic phosphonic acid, organic phosphonate, gluconic acid and salt, hydroxycarboxylic acid and salt thereof, and aminocarboxylic acid and salt thereof.
The invention also provides application of the composition containing the polyether refined adsorbent slag in a cement grinding process.
The polyether refined adsorbent slag and the alcohol-containing amine cement grinding aid composition are added in a mode that the polyether refined adsorbent slag and the alcohol-containing amine cement grinding aid composition are added into cement respectively or are added into the cement together after being mixed.
Preferably, the mixing amount of the polyether refined adsorbent slag is less than or equal to 5% of the mass of the cement, and the mixing amount of the alcohol amine-containing cement grinding aid is less than or equal to 0.5% of the mass of the cement. According to the test, when the mixing amount of the polyether refined adsorbent slag is increased, the strength of the cement is reduced; when the mixing amount of the alcohol amine cement grinding aid is 0.5 percent of the mass of the cement, the mass of the cement is optimal, and when the mixing amount of the polyether refined adsorbent slag is less than or equal to 5 percent of the mass of the cement and the mixing amount of the alcohol amine cement grinding aid is less than or equal to 0.5 percent of the mass of the cement, the cement mass is improved to the maximum extent, and the maximum technical and economic benefits can be obtained.
Further preferably, the mixing amount of the polyether refined adsorbent slag is less than or equal to 2% of the mass of the cement, and the mixing amount of the alcohol amine-containing cement grinding aid is less than or equal to 0.1% of the mass of the cement.
More preferably, the mixing amount of the polyether refined adsorbent slag is less than or equal to 1% of the mass of the cement, and the mixing amount of the cement grinding aid containing the alcohol amine is less than or equal to 0.05% of the mass of the cement.
In experiments, the invention discovers that when the polyether refined adsorbent slag and the alcohol amine-containing cement grinding aid composition are used for portland cement, the compressive strength of the portland cement is greatly improved.
When the polyether refined adsorbent slag is separately added into the cement grinding process, the compressive strength of the portland cement is obviously reduced.
When the refined polyether adsorbent slag and the alcohol-containing amine cement grinding aid composition are added into the portland cement after being moderated and uniform, the compressive strength of the portland cement is superior to that of the portland cement with the alcohol-containing amine cement grinding aid added alone.
Has the advantages that:
according to the invention, the composition of the polyether refined adsorbent slag and the alcohol amine-containing cement grinding aid is applied to the cement grinding process, and compared with the single application of the adsorbent slag or the alcohol amine-containing cement grinding aid, the compressive strength of the cement is obviously improved, and the quality of the cement is improved. The application of the composition can also reduce the clinker proportion in the cement composition and reduce the cement composition cost; the reduced clinker reduces the material consumption of cement production, thereby reducing energy consumption and emission and reducing the influence on the environment.
Detailed Description
The technical solution of the present invention is described in detail by the following specific examples, but the scope of the present invention is not limited to the examples.
Laboratory test methods:
the test is carried out according to the GB/T26748-2011 'cement grinding aid' standard. The detection method refers to GB/T17671-1999 cement mortar strength detection method and GB/T1346-2011 cement standard consistency water consumption detection method, and detects the cement strength and the standard consistency water demand.
The cement raw materials involved in the examples all meet the corresponding standards. The clinker for cement is general portland cement clinker purchased from Anhui ancient cement Co.
Polyether refined adsorbent slag MQS: adding an adsorbent MQ26 (which is a commercially available magnesium silicate adsorbent brand) and a certain amount of deionized water into the crude polyether polyol, wherein the adsorbent MQ26 is three thousandth of the mass of the crude polyether polyol, the mass of the deionized water is the same as that of the crude polyether polyol, and the temperature is kept at 30-80 ℃. Circularly stirring for 15-45 minutes, filtering again, removing excessive moisture from filter residue by a centrifuge and hot air, and marking by MQS, wherein the filter residue comprises the following components in percentage by mass:
TABLE 1 composition of MQS of polyether refined sorbent slag
The composition of the cement grinding aid containing alcohol amine is shown in table 2:
TABLE 2 composition of the alcohol amine cement grinding aid (in mass percent)
Example 1
In this example, a composition of the polyether refined sorbent residue MQS and the alcohol-containing amine cement grinding aid PG201603 was used, and the two were added to the cement separately. According to the composition proportion (by mass percent) of the cement, 60 percent of clinker, 5 percent of gypsum, 10 percent of slag, 10 percent of limestone powder and 15 percent of coal gangue are respectively weighed, and 5 kilograms are totally. MQS in an amount of 5.0% by mass of cement and PG201603 in an amount of 0.5% by mass of cement were added. And putting the mixture into a standard small mill, grinding for 23 minutes, sieving the ground material by using a 0.2 mm sieve, and testing the undersize sample according to the standard.
Comparative example 1
Unlike example 1, comparative example 1 added only the polyether refined sorbent slag MQS at 5.0% of the cement mass.
The compressive strengths of the cements prepared in example 1 and comparative example 1 are shown in Table 3:
TABLE 3 comparison of compressive strengths of cements prepared in example 1 and comparative example 1
Therefore, the cement powder grinding process is characterized in that the composition of the polyether refined adsorbent slag MQS and the alcohol amine cement grinding aid PG201603 is added, and compared with the method of independently adding the adsorbent slag, the compression strength of the cement is obviously improved.
Example 2
In this example, a composition of the polyether refined sorbent residue MQS and the alcohol amine cement grinding aid PG2016 were added to cement separately. According to the composition proportion (by mass percent) of the cement, 60 percent of clinker, 5 percent of gypsum, 15 percent of slag and 20 percent of limestone powder are respectively weighed, and the total weight is 5 kilograms. MQS (sodium sesquicarbonate) with the mass of 2.0 percent of cement and PG2016 (0.1 percent) of cement are added. And putting the mixture into a standard small mill, grinding for 23 minutes, sieving the ground material by using a 0.2 mm sieve, and testing the undersize sample according to the standard.
Comparative example 2
Unlike example 2, comparative example 2 added only the polyether refined sorbent slag MQS at 2.0% of the cement mass.
The compressive strengths of the cements prepared in example 2 and comparative example 2 are shown in Table 4:
TABLE 4 comparison of compressive strengths of cements prepared in example 2 and comparative example 2
Therefore, compared with the method of adding the adsorbent slag alone, the cement compressive strength is obviously improved, and the compressive strength is increased by a large extent in 3-day and 28-day age stages.
Example 3
In this example, a composition of the polyether refined sorbent residue MQS and the alcohol amine cement grinding aid PG2016 were added to cement separately. According to the composition proportion (by mass percent) of the cement, 69 percent of clinker, 5 percent of gypsum, 16 percent of slag powder, 8 percent of limestone powder and 2 percent of sandstone are respectively weighed, and 5 kilograms are totally. MQS (1.0 percent of cement mass) and PG2016 (0.05 percent of cement mass) are added. And (3) putting the materials into a standard small mill, grinding for 23 minutes, sieving the ground materials by using a 0.2 mm sieve, and testing the undersize sample according to the standard.
Comparative example 3
Unlike example 3, comparative example 3 added only the alcoholic amine cement grinding aid PG2016 at 0.05% cement mass.
The compressive strengths of the cements prepared in example 3 and comparative example 3 are shown in Table 5:
TABLE 5 comparison of compressive strengths of cements obtained in example 3 and comparative example 3
Compared with the single addition of the adsorbent slag, the composition has the following advantages: the compressive strength of the cement is obviously improved, and the compressive strength of the cement in 1 day, 3 days and 28 days is increased; the ratio of clinker and gypsum is reduced by 3 percent, and the compressive strength of the cement in 1 day, 3 days and 28 days is increased; the ratio of clinker and gypsum is reduced by 3 percent, and the cost of cement raw materials can be reduced; the raw material consumption for firing clinker can be reduced, and resources are saved; the coal consumed by firing is reduced, the energy consumption is reduced, and the carbon emission is reduced; reduce the limestone consumed by firing and reduce the carbon emission.
Example 4
In this example, a composition of the polyether refined sorbent residue MQS and the alcohol amine-containing cement grinding aid PG201601 was used, and the two were added to the cement separately. According to the composition proportion (by mass percent) of the cement, 69 percent of clinker, 5 percent of gypsum, 16 percent of slag powder, 8 percent of limestone powder and 2 percent of sandstone are respectively weighed, and the total weight is 5 kilograms. MQS in an amount of 1.0% by mass of cement and PG201601 in an amount of 0.05% by mass of cement were added. And putting the mixture into a standard small mill, grinding for 23 minutes, sieving the ground material by using a 0.2 mm sieve, and testing the undersize sample according to the standard.
Example 5
In this example, a composition of the polyether refined sorbent residue MQS and the alcohol amine-containing cement grinding aid PG201602 was used, and the two were added to the cement separately. According to the composition proportion (by mass percent) of the cement, 69 percent of clinker, 5 percent of gypsum, 16 percent of slag powder, 8 percent of limestone powder and 2 percent of sandstone are respectively weighed, and 5 kilograms are totally. MQS in an amount of 1.0% by mass of cement and PG201602 in an amount of 0.05% by mass of cement were added. And putting the mixture into a standard small mill, grinding for 23 minutes, sieving the ground material by using a 0.2 mm sieve, and testing the undersize sample according to the standard.
Example 6
In this example, a composition of the polyether refined sorbent residue MQS and the alcohol amine-containing cement grinding aid PG201603 was used, and the two were added to the cement separately. According to the composition proportion (by mass percent) of the cement, 69 percent of clinker, 5 percent of gypsum, 16 percent of slag powder, 8 percent of limestone powder and 2 percent of sandstone are respectively weighed, and 5 kilograms are totally. MQS in an amount of 1.0% by mass of cement and PG201603 in an amount of 0.05% by mass of cement were added. And putting the mixture into a standard small mill, grinding for 23 minutes, sieving the ground material by using a 0.2 mm sieve, and testing the undersize sample according to the standard.
Example 7
In this example, a composition of the polyether refined sorbent residue MQS and the alcohol-containing amine cement grinding aid PG201604 was used, and the two were added to the cement separately. According to the composition proportion (by mass percent) of the cement, 69 percent of clinker, 5 percent of gypsum, 16 percent of slag powder, 8 percent of limestone powder and 2 percent of sandstone are respectively weighed, and 5 kilograms are totally. MQS in an amount of 1.0% by mass of cement and PG201604 in an amount of 0.05% by mass of cement were added. And (3) putting the materials into a standard small mill, grinding for 23 minutes, sieving the ground materials by using a 0.2 mm sieve, and testing the undersize sample according to the standard.
Comparative example 4
Unlike example 4, comparative example 4 added only the polyether refined sorbent slag MQS at 1.0% of the cement mass.
The compressive strengths of the cements prepared in examples 4-7 and comparative example 4 are shown in Table 6:
TABLE 6 comparison of compressive strengths of cements prepared in examples 4-7 and comparative example 4
The alcohol-containing amine grinding aid with the mass of 0.05 percent of that of the cement and the adsorbent slag composition with the mass of 1.0 percent of that of the cement are added into the cement, and compared with the method of independently adding the adsorbent slag with the mass of 1.0 percent, the compression strength of the cement is obviously improved.
Example 8
In this embodiment, the composition of the refined polyether adsorbent slag MQS and the alcohol amine-containing cement grinding aid PG201603 is mixed uniformly and then added to the cement.
According to the composition proportion (by mass percent) of the cement, 5 kg of clinker 51%, 18% of fly ash, 27% of coal gangue and 4% of gypsum are respectively weighed. And (3) uniformly mixing 20 parts of MQS (sorbent residue) and 0.5 part of PG2016 (alcohol-containing amine grinding aid) in parts by weight to obtain the additive H. Adding an additive H accounting for 1 percent of the mass of the cement. And (3) putting the materials into a standard small mill, grinding for 23 minutes, sieving the ground materials by using a 0.2 mm sieve, and testing the undersize sample according to the standard.
Example 9
In this embodiment, the composition of the refined polyether adsorbent slag MQS and the alcohol amine-containing cement grinding aid PG201603 is mixed uniformly and then added to the cement.
According to the composition proportion (by mass percent) of cement, 50 percent of clinker, 18 percent of fly ash, 28 percent of coal gangue and 4 percent of gypsum are respectively weighed, and the total weight is 5 kilograms. And (3) uniformly mixing 20 parts of MQS (sorbent residue) and 0.5 part of PG2016 (alcohol-containing amine grinding aid) in parts by weight to obtain the additive H. Adding an additive H accounting for 1 percent of the mass of the cement. And putting the mixture into a standard small mill, grinding for 23 minutes, sieving the ground material by using a 0.2 mm sieve, and testing the undersize sample according to the standard.
Comparative example 5
No additive H is added to the cement. According to the composition proportion (by mass percent) of the cement, 52 percent of clinker, 18 percent of fly ash, 26 percent of coal gangue and 4 percent of gypsum are respectively weighed, and the total weight is 5 kilograms. And (3) putting the materials into a standard small mill, grinding for 23 minutes, sieving the ground materials by using a 0.2 mm sieve, and testing the undersize sample according to the standard.
The compressive strengths of the cements prepared in examples 8 to 9 and comparative example 5 are shown in Table 7:
TABLE 7 comparison of compressive strengths of cements prepared in examples 8 to 9 and comparative example 5
The hydramine grinding aid and the adsorbent slag composition are added after being mixed, so that the compressive strength of the cement is also obviously improved, and the effect of the composition is not influenced. The application of the composition can also reduce the clinker proportion in the cement composition and reduce the cost of the cement composition; the reduced clinker reduces the material consumption of cement production, thereby reducing energy consumption and emission and reducing the influence on the environment.
Comparative example 6
The raw materials are weighed according to the composition proportion of the cement in the table 8, 5 kg of the raw materials are weighed respectively, and 1,2,3,4 samples are weighed respectively. MQS with the mass of 5 kg, 1.0 percent and 5.0 percent of cement is respectively added into the sample No. 2,3,4.
Respectively putting the samples 1,2,3 and 4 into a standard small mill, grinding for 25 minutes, sieving the ground materials by a 0.2 mm sieve, and testing the sieved materials according to the standard.
TABLE 8 comparison of compressive strengths of cements prepared in comparative example 6
Therefore, the compression strength of the cement is reduced by adding the adsorbent slag alone, and the larger the addition amount is, the more the reduction is.
Comparative example 7
According to the composition proportion of the cement in the table 9, the raw materials are respectively weighed according to the mass proportion, and 5 kilograms of the raw materials are respectively weighed, and 1,2,3,4,5,6 samples are respectively weighed. MQS with the mass of 1.0 percent, 2.0 percent, 3.0 percent, 4.0 percent and 5.0 percent of cement is respectively added into samples No. 2,3,4,5,6.
Respectively putting the No. 1,2,3,4,5,6 samples into a standard small mill, grinding for 25 minutes, sieving the ground materials by using a 0.2 mm sieve, and testing the undersize samples according to the standard.
TABLE 9 comparison of compressive strengths of cements prepared in comparative example 7
The compression strength of the cement is reduced by adding the adsorbent slag separately, and the larger the mixing amount is, the more the reduction is.
From the data of comparative examples 6 and 7, it can be seen that when the clinker proportion is 65% and 75%, the compressive strength of the cement is reduced by adding the sorbent slag alone, and the more the addition amount is, the more the reduction is, the same rule is. It is shown that the addition of the sorbent slag alone results in a decrease in the compressive strength of the cement regardless of the clinker proportion of the cement.
As noted above, while the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limited thereto. Various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The composition containing polyether refined adsorbent slag is characterized by consisting of polyether refined adsorbent slag and an alcohol-containing amine cement grinding aid, wherein the mass ratio of the polyether refined adsorbent slag to the alcohol-containing amine cement grinding aid is 10-40; the polyether refined adsorbent slag is generated in a polyether polyol refining process.
2. The composition as claimed in claim 1, wherein the cement grinding aid containing alkanolamine contains at least one hydroxyalkyl tertiary amine or salt or ester thereof.
3. The composition of claim 2, wherein the hydroxyalkyl tertiary amine is triethanolamine, triisopropanolamine, tributanolamine, dihydroxyethyl monoisopropanolamine, dihydroxypropyl monoethanolamine, tetrahydroxyethyl ethylenediamine, tetrahydroxypropyl ethylenediamine, tetrahydroxyethyl propylenediamine, tetrahydroxypropyl propylenediamine, hydroxyethylhydroxypropylethylenediamine, hydroxyethylhydroxypropylpropylenediamine, methyldiethanolamine, methyldiisopropanolamine, ethyldiethanolamine, ethyldiisopropanolamine, methylhydroxyethyl isopropanolamine, or ethylhydroxyethyl isopropanolamine.
4. The composition of claim 2, wherein the alkanolamine-containing cement grinding aid comprises a combination of a hydroxyalkyl tertiary amine and salts or esters thereof with at least one of a polyol, an inorganic salt, a water reducing agent, and a retarder; the mass percentage of the hydroxyalkyl tertiary amine and the salt or ester thereof is 25 to 40 percent, the polyhydric alcohol is 5 to 10 percent, the inorganic salt is 2 to 5 percent, the water reducing agent is 0 to 1 percent, the retarder is 1 to 3 percent, and the water is 46 to 57 percent.
5. The composition of claim 4, wherein the polyol is ethylene glycol, propylene glycol, glycerol, pentanol, pentaerythritol, xylitol, sorbitol, and ethers thereof.
6. The composition of claim 4, wherein the water reducing agent is a polycarboxylic acid water reducing agent, a naphthalene sulfonate water reducing agent, a lignosulfonate water reducing agent, a calcium gluconate water reducing agent, an aminosulfonic acid water reducing agent, an aliphatic water reducing agent, or a melamine water reducing agent.
7. The composition of claim 4, wherein the set retarder is a phosphate, metaphosphate, borax, sodium fluorosilicate, organophosphonic acid, organophosphonate, gluconic acid and salts, hydroxycarboxylic acids and salts thereof, aminocarboxylic acids and salts thereof.
8. An application of the composition containing polyether refined adsorbent slag in cement grinding process.
9. The use of claim 8, wherein the polyether refined sorbent residue and the alcohol amine-containing cement grinding aid composition are added to the cement separately or together after mixing.
10. The use of claim 8, wherein the polyether refining sorbent slag is doped in an amount of 5% or less by mass of the cement, and the alkanolamine cement grinding aid is doped in an amount of 0.5% or less by mass of the cement.
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| CN109851769A (en) * | 2018-12-03 | 2019-06-07 | 万华化学集团股份有限公司 | A kind of refining methd and composition of low VOC polyether polyol |
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| CN109851769A (en) * | 2018-12-03 | 2019-06-07 | 万华化学集团股份有限公司 | A kind of refining methd and composition of low VOC polyether polyol |
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