专利检索_ .用气态硝酸或氮氧化物制备专利检索_ .用气态硝酸或氮氧化物制备专利检索查询

序号	专利名	申请号	申请日	公开（公告）号	公开（公告）日	发明人
1	一种催化裂化烟气脱硫废水的处理方法	CN201610592733.8	2016-07-25	CN106007148A	2016-10-12	裴旭东; 陈卫红; 郭荣群; 郭玉涛; 涂先红; 李朝恒; 张凡; 叶春波
本发明提供了一种催化裂化烟气脱硫废水的处理方法，充分利用高温烟气余热，在洗涤塔内对循环浆液进行提浓，通过控制循环浆液的浓度，保证脱硫系统正常运转；同时对浓缩后的外排废水进行预处理(絮凝、过滤、脱除钙镁离子、氧化降COD等)，使外排废水满足浓缩系统的进料要求，再通过蒸发结晶(多效蒸发或MVR)实现含盐废水零排放和无机盐的回收。本工艺将钠碱法烟气脱硫与无机盐蒸发结晶回收工艺有机地整合起来，避免了膜浓缩过程中存在的膜污染、结垢，以及投资大、能耗高等问题，彻底解决碱洗工艺含盐废水排放问题，真正实现“零排放”，同时对无机钠盐产物进行分质结晶，使回收产物成为产品，解决了混盐危废问题，消除了二次污染。
2	中压生产硝酸钠的方法	CN201410684467.2	2014-11-25	CN104326494A	2015-02-04	唐文骞; 董洪茂; 刘丽; 王汉杰; 杨同莲; 杜明洋; 宋冬宝; 吴广增; 狄晓亮; 杨秀会
本发明公开了一种中压生产硝酸钠的方法，该方法步骤如下：利用已闲置中压硝酸设备制取高浓度的氮氧化物气，将氮氧化物气送入碱吸收塔系统，在碱吸收塔系统内制得硝酸钠和亚硝酸钠的中和液，将中和液送入转化塔内，同时向转化塔内加入硝酸和空气将中和液中的亚硝酸钠连续转化为硝酸钠，之后将转化液送入蒸发器进行蒸发处理，蒸发之后的转化液送入结晶器，在负压下对转化液进行结晶处理，然后将结晶液送入离心机进行分离处理，将结晶液内的结晶和母液分离，最后生产出产品硝酸钠。本发明的中压生产硝酸钠的方法和现有技术相比，可节省建设投资约15%，吨产品能耗和吨运行费用都大幅度降低，具有可观的节能效果和经济效益。
3	硼矿制取硼酸联产硝酸钠	CN87101000	1987-03-03	CN1030065A	1989-01-04	雷振玺
硼矿首先用氢氧化钠溶液浸取生成偏硼酸钠溶液：XMO·YB2O3·ZH2O+2YNaOH＝2YNaBO2+XM(OH)2↓+(Y+Z-X)H2O M：碱土金属元素然后再用硝酸酸解：NaBO2+HNO3+H2OH3BO3+NaNO3再经冷却、结晶、离心分离、纯化、干燥等过程进行处理。硼镁矿和硼钙矿都适宜用此专利。
4	Coal/coke/heavy residual oil boiler with sulfur and carbon dioxide capture and recovery	US12102653	2008-04-14	US08084010B2	2011-12-27	Donald A. Rudberg; Richard P. Schuller; Donald W. Cott
A pulverized coal/coke (PC) boiler combusts carbon-based fuel with substantially pure oxygen and a flue gas recirculation stream (containing predominately carbon dioxide) at varied ratios to achieve a desired boiler temperature profile while producing captured sulfur, a high purity captured CO2 and electric power. The boiler includes at least one of (a) a mechanism for admixing a pulverized solid carbon-based fuel with an alkali metal salt and (b) injecting alkali metal salt into the boiler combustion zone containing a pulverized solid carbon-based fuel.
5	Production of alkali-metal nitrates	US69413346	1946-08-30	US2535989A	1950-12-26	STENGEL LEONARD A

6	Purification of materials containing nitrite	US72043634	1934-04-13	US2139142A	1938-12-06	FITCH WESTON CHARLES

7	Production of nitrates from metal halides	US51304631	1931-02-02	US2007478A	1935-07-09	LUDWIG ROSENSTEIN

8	Method of producing nitrates	US54428331	1931-06-13	US1918941A	1933-07-18	BRUNO UEBLER

9	Recovery of chlorine from gas mixtures	US48702330	1930-10-17	US1899123A	1933-02-28	BRUNO UEBLER

10	Process for the simultaneous recovery of nitric oxide and the production of alkali-metal nitrate and hydrochloric acid	US6104325	1925-10-07	US1604660A	1926-10-26	ROSS WILLIAM H; MEHRING ARNON L

11	Coal/Coke/Heavy Residual Oil Boiler With Sulfur And Carbon Dioxide Capture And Recovery	US12102653	2008-04-14	US20090257941A1	2009-10-15	Donald A. Rudberg; Richard P. Schuller; Donald W. Cott
A pulverized coal/coke (PC) boiler combusts carbon-based fuel with substantially pure oxygen and a flue gas recirculation stream (containing predominately carbon dioxide) at varied ratios to achieve a desired boiler temperature profile while producing captured sulfur, a high purity captured CO2 and electric power. The boiler includes at least one of (a) a mechanism for admixing a pulverized solid carbon-based fuel with an alkali metal salt and (b) injecting alkali metal salt into the boiler combustion zone containing a pulverized solid carbon-based fuel.
12	Process for nitrogen oxide waste conversion to fertilizer	US09511634	2000-02-17	US06641638B1	2003-11-04	Dale E. Lueck; Clyde F. Parrish
The present invention describes a process for converting vapor streams from sources containing at least one nitrogen-containing oxidizing agent therein to a liquid fertilizer composition comprising the steps of: a) directing a vapor stream containing at least one nitrogen-containing oxidizing agent to a first contact zone, b) contacting said vapor stream with water to form nitrogen oxide(s) from said at least one nitrogen-containing oxidizing agent, c) directing said acid(s) as a second stream to a second contact zone, d) exposing said second stream to hydrogen peroxide which is present within said second contact zone in a relative amount of at least 0.1% by weight of said second stream within said second contact zone to convert at least some of any nitrogen oxide species or ions other than in the nitrate form present within said second stream to nitrate ion, e) sampling said stream within said second contact zone to determine the relative amount of hydrogen peroxide within said second contact zone, f) adding hydrogen peroxide to said second contact zone when a level of hydrogen peroxide less than 0.1% by weight in said second stream is determined by said sampling, g) adding a solution comprising potassium hydroxide to said second stream to maintain a pH between 6.0 and 11.0 within said second stream within said second contact zone to form a solution of potassium nitrate, and h) removing said solution of potassium nitrate from said second contact zone.
13	Process and equipment for nitrogen oxide waste conversion to fertilizer	US772057	1996-12-03	US6039783A	2000-03-21	Dale E. Lueck; Clyde F. Parrish
The present invention describes a process for converting vapor streams from sources containing at least one nitrogen-containing oxidizing agent therein to a liquid fertilizer composition comprising the steps of:a) directing a vapor stream containing at least one nitrogen-containing oxidizing agent to a first contact zone,b) contacting said vapor stream with water to form nitrogen oxide(s) from said at least one nitrogen-containing oxidizing agent,c) directing said acid(s) as a second stream to a second contact zone,d) exposing said second stream to hydrogen peroxide which is present within said second contact zone in a relative amount of at least 0.1% by weight of said second stream within said second contact zone to convert at least some of any nitrogen oxide species or ions other than in the nitrate form present within said second stream to nitrate ion,e) sampling said stream within said second contact zone to determine the relative amount of hydrogen peroxide within said second contact zone,f) adding hydrogen peroxide to said second contact zone when a level of hydrogen peroxide less than 0.1 % by weight in said second stream is determined by said sampling,g) adding a solution comprising potassium hydroxide to said second stream to maintain a pH between 6.0 and 11.0 within said second stream within said second contact zone to form a solution of potassium nitrate, andh) removing said solution of potassium nitrate from said second contact zone.
14	Method for oxidizing nitrogen oxides	US34860873	1973-04-06	US3927183A	1975-12-16	OUSHIBA TAKASHI
Nitrogen oxides and oxygen are reacted in the presence of KNO3containing HNO3 at normal room temperatures to 60*C to produce nitrogen peroxide, which, if required, is converted into nitric acid having a concentration not lower than 68%.
15	Preparation of chlorine and alkali metal nitrate as a side reaction in the production of nitric acid	US3661512D	1969-04-23	US3661512A	1972-05-09	OUSHIBA TAKASHI
A method for producing chlorine and alkali metal nitrate which comprises reacting nitrogen peroxide, water and oxygen in the presence of an aqueous nitric acid containing a nitrate of a group Ia metal having an atomic weight at least as heavy as potassium and reacting a chloride of alkali metal with the resulting solution.
16	Production of alkali metal nitrates from alkali metal chlorides	US60699756	1956-08-30	US2916353A	1959-12-08	LOVELL CLARENCE E; JACKSON LEWIS CLIFFORD

17	Production of sodium nitrate	US75256747	1947-06-04	US2535990A	1950-12-26	STENGEL LEONARD A

18	Process for the production of nitrates	US6054636	1936-01-24	US2148793A	1939-02-28	OSCAR AGEL FRANK

19	Recovering nitrogen from nitrosyl chloride	US68066233	1933-07-15	US2064978A	1936-12-22	OSKAR KASELITZ

20	Production of potassium nitrate	US72348234	1934-05-02	US2057957A	1936-10-20	OSKAR KASELITZ

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