IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
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| 국제특허분류(IPC7판) |
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| 출원번호 |
US-0251433
(1988-09-30)
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발명자
/ 주소 |
- King Stephen W. (Scott Depot WV)
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| 출원인 / 주소 |
- Union Carbide Chemicals & Plastics Technology Corporation (Danbury CT 02)
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| 인용정보 |
피인용 횟수 :
20 인용 특허 :
0 |
초록
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This invention relates to modified calcium-containing bimetallic or polymetallic catalysts and the use thereof in the preparation of alkoxylation products, i.e., condensation reaction products of alkylene oxides and organic compounds having at least one active hydrogen. In another aspect of this inv
This invention relates to modified calcium-containing bimetallic or polymetallic catalysts and the use thereof in the preparation of alkoxylation products, i.e., condensation reaction products of alkylene oxides and organic compounds having at least one active hydrogen. In another aspect of this invention, processes are provided for preparing modified calcium-containing bimetallic or polymetallic catalysts for alkoxylation using calcium metal or a calcium-containing compound as sources for the catalytically-active calcium. In a further aspect of this invention, processes are provided for preparing alkoxylation products that have beneficial, narrow molecular weight ranges using the modified calcium-containing bimetallic or polymetallic catalysts.
대표청구항
▼
A method for providing an alkoxylation catalyst comprising: (a) reacting or solubilizing, at least partially, calcium metal or a calcium-containing compound, by mixing with an activator having the formula Za－X－Q－Y－Z′b wherein X and Y are the same or different electronegative, heteroatoms selected f
A method for providing an alkoxylation catalyst comprising: (a) reacting or solubilizing, at least partially, calcium metal or a calcium-containing compound, by mixing with an activator having the formula Za－X－Q－Y－Z′b wherein X and Y are the same or different electronegative, heteroatoms selected from the group consisting of oxygen, nitrogen, sulfur and phosphorus; a and b are the same or different integers satisfying the valency requirements of X and Y; Q is an organic radical which is electropositive or essentially neutral relative as to X and/or Y; Z and Z′are the same or different and are either hydrogen or an organic radial which does not present said reacting or solubilizing, thereby forming a calcium-containing composition which has titratable alkalinity; (b) reacting a divalent or polyvalent metal or a divalent or polyvalent metal-containing compound wherein the divalent or polyvalent metal is selected from the group consisting of beryllium, magnesium, strontium, barium, lanthanum, titanium, zirconium, hafnium, niobium, tantalum, molybdenum, tungsten, iron, cobalt, nickel, copper, zinc, boron, gallium, silicon, germanium tin, phosphorus, antimony, sulfur, selenium, tellurium, cerium and thorium with an organic compound having at least one active hydrogen to produce a divalent or polyvalent metal-containing composition; (c) reacting the calcium-containing composition with the divalent or polyvalent metal-containing composition under effective reaction conditions to produce a catalyst precursor composition; and (d) reacting the catalyst precursor composition with a divalent or polyvalent oxyacid or a divalent or polyvalent metal salt of an oxyacid or mixtures thereof under effective reaction conditions to produce the alkoxylation catalyst.
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