Chemically coated zeolite and method for chemically coating zeolite and using coated zeolite
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01D-053/02
출원번호
US-0554198
(1995-11-06)
발명자
/ 주소
Klatte Fred
Cadena Fernando
대리인 / 주소
Limbach & Limbach L.L.P.
인용정보
피인용 횟수 :
21인용 특허 :
9
초록▼
A process for coating zeolite crystals with paraffin, a wax other than paraffin, a fat or oil, or a mixture of at least one QAC and a wax, fat, or oil. Preferably, the crystals are dehydrated until they have about 5% moisture content, and are then mixed with paraffin to produce paraffin-coated zeoli
A process for coating zeolite crystals with paraffin, a wax other than paraffin, a fat or oil, or a mixture of at least one QAC and a wax, fat, or oil. Preferably, the crystals are dehydrated until they have about 5% moisture content, and are then mixed with paraffin to produce paraffin-coated zeolite crystals having a desired content of paraffin. When the coated zeolite crystals are used for removing benzene from contaminated water, their paraffin content is preferably about 8% (by weight). Other embodiments are methods for using zeolite coated with paraffin, another wax, a fat, an oil, or a mixture of at least one QAC and a wax, fat, or oil to filter a contaminant from contaminated liquid or gas. The zeolite crystals are optionally impregnated with a chemical such as permanganate before they are coated with the desired wax, fat, oil or mixture. A zeolite crystal having pores coated with wax, fat, oil, or a mixture of at least one QAC and wax, fat, or oil is within the scope of the invention. Another aspect of the invention is a method of filtering contaminants from fluid by exposing the fluid to zeolite crystals coated with a wax, fat, oil, or a mixture of at least one QAC and wax, fat, or oil.
대표청구항▼
[ What is claimed is:] [1.] A zeolite crystal coated with a substance, produced as a result of a method including the steps of:(a) dehydrating zeolite crystals containing at least some water to decrease their moisture content below their initial moisture content, thereby producing dehydrated zeolite
[ What is claimed is:] [1.] A zeolite crystal coated with a substance, produced as a result of a method including the steps of:(a) dehydrating zeolite crystals containing at least some water to decrease their moisture content below their initial moisture content, thereby producing dehydrated zeolite crystals; and(b) after step (a), mixing the dehydrated zeolite crystals with the substance, thereby producing zeolite crystals coated with the substance, wherein said substance is selected from the group consisting of waxes, mixtures of at least one QAC and at least one wax, mixtures of at least one QAC and at least one fat, and mixtures of at least one QAC and at least one oil.
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이 특허에 인용된 특허 (9)
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Duncan, Carolyn B.; Stanat, Jon E. R.; Lissy, Daria N.; Cheng, Jane C., Preparation of molecular sieve catalysts and their use in the production of alkylaromatic hydrocarbons.
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