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5558745 Treatment of absorbent sanitary paper products
PatentsALERT
surface. The jets are emitted from nozzles at high speeds so that they sweep the surface with at least ten jets, each of which has a cross section lying in the range of 400 micrometers to 4 millimeters, so that very low kinetic energy is imparted to the surface.
PROCESS FOR ENZYMATICALLY DEGUMMING VEGETABLE OIL Buchold Hennin; Boensch Rudolf; Schroeppel Joer Hanau, GERMANY assigned to Metallgesellschaft Aktiengesellschaft, Rohm GMBH Chemische Fabr
5558703 BITUMINOUS COMPOSITIONS Bredael Pierr Research S A
5558781
Brussels, BELGIUM assigned to Fina
Bituminous compositions are provided by mixing 100 parts of an inorganic skeleton or an aggregate with up to 7 parts of bitumen with a first modifier chosen from the group comprising styrene-butadiene polymers, styrene-isoprene polymers, recycled tires or any mixtures thereof, and a second modifier selected from the group comprising polyolefins, polyethylene terephthalate or any mixtures thereof. The present composition allows the utilization of large amounts of recycled plastics.
A process is disclosed for enzymatically degumming vegetable oil where the vegetable oil to be degummed is adjusted to a pH from 3 to 6 and is mixed with an aqueous enzyme solution, which contains one of the enzymes phospholipase Al, A2 or B. In a degumming reactor the enzymes are permitted to act on the oil at temperatures from 20” to 90” C with stirring. Before or after a separation of the degummed oil a separation promoter or a solubilizer is added at temperatures from 20” to 90°C to the liquid which has been withdrawn from the degumming reactor. A substantially sludgefiee solution, which contains used enymes, is thus recovered and is recycled at least in part to a location preceding the degumming rector. The content of recycled used enzymes in the total amount of the enzymes dispersed in the oil is at least 10%.
5558782 5558745
RECOVERY OF WATER AND SOLIDS IN A PAPER MILL
TREATMENT OF ABSORBENT SANITARY PAPER PRODUCTS
Bleakley Ian S; Toivonen Hannu 0 St Austell, UNITED KINGDOM assigned to ECC International Limited
Conway Marlene E; Jooste Francoi; Smith Michael D Brampton, CANADA assigned to Knowaste Technologies Inc
There is disclosed a process for separating fine solids from water in the used water recovery system of a sheet forming mill, wherein the used water recovery system includes at least one stage in which an alkaline earth metal carbonate is precipitated in the aqueous suspension constituting the used. water whereby the particulate material present in the used water becomes entrained in the alkaline earth metal carbonate precipitate. By the invention it is possible to recover the water and the fine solid materials which pass through the wire mesh belt of a paper or board forming machine, and optionally recycle those recovered materials.
PCT No. PCT/CA91/00393 Sec. 371 Date Jun. 29, 1993 Sec. 102(e) Date Jun. 29, 1993 PCT Filed Oct. 29, 1991 PCT Pub. No. WO92/07995 PCT Pub. Date May 14,1992. A process for the treatment of absorbent sanitary paper products to separate such products into components thereof in a form suitable for recycling or re-use is disclosed; absorbent sanitary paper products include disposable diapers, incontinence products, feminine hygiene products, bedpads and other related absorbent and adsorbent products. The process comprises the step of treating said products in at least one bath of an aqueous solution to remove particulate and/or soluble matter from the products. The bath is operated under conditions that are conducive to nondestructive separation of said products into components thereof. In preferred embodiments, the treated product thus obtained is treated with at least one aqueous washing solution and with at least one aqueous solution of at least one of bleaching agent and antimicrobial agent, and separate streams of plastic and cellulosic materials are recovered. The process results in the recovery of usable products from absorbent sanitary paper products.
156
J. Cleaner Prod.,
1997, Volume
5, Number
5558783 SUPERCRITICAL OXIDATION REACTOR McGuinness Thomas Aurora, IL, UNITED STATES The invention relates to an improved apparatus and method for initiating and sustaining an oxidation reaction. A fuel, such as natural gas or hazardous waste, is introduced into a
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surface. The jets are emitted from nozzles at high speeds so that they sweep the surface with at least ten jets, each of which has a cross section lying in the range of 400 micrometers to 4 millimeters, so that very low kinetic energy is imparted to the surface.
PROCESS FOR ENZYMATICALLY DEGUMMING VEGETABLE OIL Buchold Hennin; Boensch Rudolf; Schroeppel Joer Hanau, GERMANY assigned to Metallgesellschaft Aktiengesellschaft, Rohm GMBH Chemische Fabr
5558703 BITUMINOUS COMPOSITIONS Bredael Pierr Research S A
5558781
Brussels, BELGIUM assigned to Fina
Bituminous compositions are provided by mixing 100 parts of an inorganic skeleton or an aggregate with up to 7 parts of bitumen with a first modifier chosen from the group comprising styrene-butadiene polymers, styrene-isoprene polymers, recycled tires or any mixtures thereof, and a second modifier selected from the group comprising polyolefins, polyethylene terephthalate or any mixtures thereof. The present composition allows the utilization of large amounts of recycled plastics.
A process is disclosed for enzymatically degumming vegetable oil where the vegetable oil to be degummed is adjusted to a pH from 3 to 6 and is mixed with an aqueous enzyme solution, which contains one of the enzymes phospholipase Al, A2 or B. In a degumming reactor the enzymes are permitted to act on the oil at temperatures from 20” to 90” C with stirring. Before or after a separation of the degummed oil a separation promoter or a solubilizer is added at temperatures from 20” to 90°C to the liquid which has been withdrawn from the degumming reactor. A substantially sludgefiee solution, which contains used enymes, is thus recovered and is recycled at least in part to a location preceding the degumming rector. The content of recycled used enzymes in the total amount of the enzymes dispersed in the oil is at least 10%.
5558782 5558745
RECOVERY OF WATER AND SOLIDS IN A PAPER MILL
TREATMENT OF ABSORBENT SANITARY PAPER PRODUCTS
Bleakley Ian S; Toivonen Hannu 0 St Austell, UNITED KINGDOM assigned to ECC International Limited
Conway Marlene E; Jooste Francoi; Smith Michael D Brampton, CANADA assigned to Knowaste Technologies Inc
There is disclosed a process for separating fine solids from water in the used water recovery system of a sheet forming mill, wherein the used water recovery system includes at least one stage in which an alkaline earth metal carbonate is precipitated in the aqueous suspension constituting the used. water whereby the particulate material present in the used water becomes entrained in the alkaline earth metal carbonate precipitate. By the invention it is possible to recover the water and the fine solid materials which pass through the wire mesh belt of a paper or board forming machine, and optionally recycle those recovered materials.
PCT No. PCT/CA91/00393 Sec. 371 Date Jun. 29, 1993 Sec. 102(e) Date Jun. 29, 1993 PCT Filed Oct. 29, 1991 PCT Pub. No. WO92/07995 PCT Pub. Date May 14,1992. A process for the treatment of absorbent sanitary paper products to separate such products into components thereof in a form suitable for recycling or re-use is disclosed; absorbent sanitary paper products include disposable diapers, incontinence products, feminine hygiene products, bedpads and other related absorbent and adsorbent products. The process comprises the step of treating said products in at least one bath of an aqueous solution to remove particulate and/or soluble matter from the products. The bath is operated under conditions that are conducive to nondestructive separation of said products into components thereof. In preferred embodiments, the treated product thus obtained is treated with at least one aqueous washing solution and with at least one aqueous solution of at least one of bleaching agent and antimicrobial agent, and separate streams of plastic and cellulosic materials are recovered. The process results in the recovery of usable products from absorbent sanitary paper products.
156
J. Cleaner Prod.,
1997, Volume
5, Number
5558783 SUPERCRITICAL OXIDATION REACTOR McGuinness Thomas Aurora, IL, UNITED STATES The invention relates to an improved apparatus and method for initiating and sustaining an oxidation reaction. A fuel, such as natural gas or hazardous waste, is introduced into a
7-2