CAS: 13453-69-5; Lithium Metaborate

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专利信息

专利号:US-2021276876-A1
优先权日:2020-03-05
标 题:Synthesis of high purity beta-silicon carbide
发明人：FAN MAOHONG; Sun Kaidi; WANG TONGTONG; CHEN ZHE; LU WENYANG; HE XIN; GONG WEIBO; HORNER RICHARD ARTHUR
权利人:UNIV WYOMING
摘要:A clean and low-cost approach for reusing waste residual from coal utilization and sandstone powder is disclosed. The coal waste residual may be produced from any thermal, solvent extraction or combination process. For example, a sustainable and environmentally friendly method for synthesis of beta-silicon carbide (β-SiC) using, for example, the residual of Powder River Basin (PRB) coal extraction derived from ethanol and supercritical CO2 (EtOH-SCC) extraction combined with natural sandstone.

专利号:US-8012453-B2
优先权日:2007-10-25
标题 :Carbon sequestration and production of hydrogen and hydride
发明人：SAXENA SURENDRA
权利人:SAXENA SURENDRA
摘要:This invention describes a complete sequestration of carbon (CO 2 and CO) from coal burning plants. In this process, hydrogen can be generated which in turn permits the reduction in the cost of hydride synthesis. The hydrides store hydrogen for on-board application for automobiles and fuel cells. Hydrogen generation and synthesis of hydrides is accomplished by using an integrated approach in which coal is used as a fuel and carbon is sequestered in the process. The CO and or CO 2 produced in coal burning power plants and the heat is used when available for producing hydrogen and hydrides. Carbon is used both as a reactant and as a fuel. Economically hydrogen production cost is comparable to or less than the current price of hydrogen produced from fossil-fuel with the added benefit of carbon sequestration and reducing global warming. Specific processes for synthesizing important hydrogen storage materials, hydrides are described. A hydrogen based automobile becomes viable as the cost of the hydrogen production and hydride synthesis is reduced. Although coal-burning power plant is specified here, any power plant, coal- or natural gas-burning, can be subjected to similar treatment.

专利号:WO-9113132-A1
优先权日:1990-03-01
标 题:Synthesis of a crystalline silicoaluminophosphate
发明人：MILLER STEPHEN J
权利人:CHEVRON RES
摘要:A silicoaluminophosphate molecular sieve is disclosed and is characterized in that the P2O5 to alumina mole ratio at the surface is about 0.80 or less, the P2O5 to alumina mole ratio of the bulk is 0.96 or greater and the silicon content at the surface is greater than that of the bulk.

专利号:US-5158665-A
优先权日:1988-02-12
标 题 :Synthesis of a crystalline silicoaluminophosphate
发明人：MILLER STEPHEN J
权利人:CHEVRON RES & TECH
摘要:A method is disclosed for preparing a silicoaluminophosphate molecular sieve, characterized in that the P 2 O 5 to alumina mole ratio at the surface is about 0.85 or less, the P 2 O 5 to aluminia mole ratio of the bulk is 0.94 or greater and the silicon content at the surface is greater than that of the bulk, from a reaction mixture containing particles less than 80 microns in diameter.

专利号:US-5208005-A
优先权日:1988-02-12
标题 :Synthesis of a crystalline silicoaluminophosphate
发明人：MILLER STEPHEN J
权利人:CHEVRON RES & TECH
摘要:A method is disclosed for preparing a silicoaluminophosphate molecular sieve, characterized in that the P2O5 to alumina mole ratio at the surface is about 0.80 or less, the P2O5 to alumina mole ratio of the bulk is 0.96 or greater and the silicon content at the surface is greater than that of the bulk, from a reaction mixture containing particles less than 80 microns in diameter.

专利号:US-4751315-A
优先权日:1985-10-18
标 题 :Process for the preparation of clausenamide
发明人：HARTWIG WOLFGANG
权利人:BAYER AG; CHINESE ACAD MED SCIENCE
摘要:A new synthetic route to clausenamide having the formula ##STR1## has been found. It has been found that a compound of the formula ##STR2## can be oxidized to provide the stereochemically correctly configured product, clausenamide. A number of new compounds useful in the total synthesis of clausenamide have also been found. These compounds have the general formula ##STR3## wherein R is ##STR4## and CH 2 OH.