Tag Archives: oxidation

Oxidation method for preph. of polyuron, and its use as strengthening agent in paper making

Application Number  00128607 Application Date  2000.08.16 Publication Number  1298885 Publication Date  2001.06.13 Priority Information   1999/8/17 US 09/375931; 2000/8/10 US 09/636069   International Classification  C08B31/18   Applicant(s) Name  National Starch and Chemical Investment Holding Corp.   Address     Inventor(s) Name  A.L. Chimichioglu;J.S. Tomeds   Patent Agency Code  72001 Patent Agent  wang jingchao AbstractPolysaccharide aldehydes… Read More »

Composition for oxidation dyeing keratoprotein fibre and method for dyeing using said composition

Application Number  00128195 Application Date  2000.09.23 Publication Number  1296812 Publication Date  2001.05.30 Priority Information   1999/9/24 FR 99/11967   International Classification  A61K7/13   Applicant(s) Name  L'Oreal   Address     Inventor(s) Name  G. Pros;A. Laglangues   Patent Agency Code  72001 Patent Agent  wang jihao AbstractThe invention relates to a composition for dyeing which is capable… Read More »

Method for preparing 2,4-dichlorophenylnitrile by using ammonia oxidation process and special-purpose catalyst

Application Number: 00114640Application Date: 2000.06.20Publication Number: 1328874Publication Date: 2002.01.02Priority Information: International: B01J27/14;B01J27/185;B01J27/186;B01J27/199;C07C253/24;C07C255/50Applicant(s) Name: Wuhan Univ.Address: Inventor(s) Name: Zheng Qiong;Huang Chi;Xie GuangyongPatent Agency Code: 00000Patent Agent: Abstract The present invention discloses a method for preparing 2,4-dichlorobenzonitrile by using ammonia oxidation process and its special-purpose catalyst. It is a multicomponent catalyst in which the V, Ti and… Read More »

Oxidation and vaporization retarding combustion technique to reduce pollution and save energy for IC engine

Application Number: 00122846Application Date: 2000.08.30Publication Number: 1281094Publication Date: 2001.01.24Priority Information: International: F02M31/08Applicant(s) Name: He MengyuAddress: Inventor(s) Name: He MengyuPatent Agency Code: 00000Patent Agent: Abstract A slow-oxidization and vaporizing combustion technique for eliminating pollution, saving energy and increasing power is suitable for IC engines (including gasoline and diesel oil ones) is disclosed, which uses the device… Read More »

Method for preparing 3,4-dichlorophenylnitrile by using ammonia oxidation process and its special-purpose catalyst

Application Number: 00114641Application Date: 2000.06.20Publication Number: 1328875Publication Date: 2002.01.02Priority Information: International: B01J27/185;B01J27/186;B01J27/187;B01J27/188;B01J27/195;C07C253/28;C07C255/50Applicant(s) Name: Wuhan Univ.Address: Inventor(s) Name: Zheng Qiong;Huang Chi;Xie GuangyongPatent Agency Code: 00000Patent Agent: Abstract The present invention discloses a method for preparing 3,4-dichlorobenzonitrile by using ammonia oxidation process and its special-purpose catalyst. It is a multicomponent catalyst: V a P b C c… Read More »

Catalyst for producing ethylene by carbon dioxide oxidation and dehydrogenation of ethane under low temperature

Application Number: 00122909Application Date: 2000.08.23Publication Number: 1339336Publication Date: 2002.03.13Priority Information: International: B01J23/84;B01J32/00;B01J35/10;C07C5/48;C07C11/04Applicant(s) Name: Dalian Inst. of Chemical Physics, Chinese Academy of SciencesAddress: Inventor(s) Name: Wang Qingxia;Yang Hong;Xu LongyaPatent Agency Code: 21002Patent Agent: zhang chenAbstract The catalyst consists of carrier and carried metal oxide, and the carried metal oxide is or more selected from the oxide… Read More »

Preparation of 2,4-dibromo-5-fluorobenzonitrile and 2,4-dibromo-5-fluorobenzoic acid by using ammonia oxidation process

Application Number: 00114642Application Date: 2000.06.20Publication Number: 1328996Publication Date: 2002.01.02Priority Information: International: C07C253/28;C07C255/49Applicant(s) Name: Wuhan Univ.Address: Inventor(s) Name: Huang Chi;Zheng QiongPatent Agency Code: 00000Patent Agent: Abstract The present invention discloses a novel compound-2,4-dibromo-5-fluorobenzonitrile and its preparation method, and preparation method of 2,4-dibromo-5-fluorobenzoic acid by using the said compound, i.e. it utilizes oxidation of 2,4-dibromo-5-fluoromethylphenylammonia to prepare… Read More »

Catalyst for preparing butanone by gas phase oxidation of butene and its preparation and use

Application Number: 00122911Application Date: 2000.08.23Publication Number: 1339337Publication Date: 2002.03.13Priority Information: International: B01J23/89;C07C45/27;C07C49/04Applicant(s) Name: Dalian Inst. of Chemical Physics, Chinese aCademy of SciencesAddress: Inventor(s) Name: Liu Shenglin;Yu Longya;Xie SujianPatent Agency Code: 21002Patent Agent: zhang chenAbstract The catalyst has the composite of PdABC/TiO2-Al2O3, where Pd content is 0.01-5.0 wt%; A is VIIIB metal other than Pd in… Read More »

Titanium white chloride oxidation reactor

Application Number: 00116465Application Date: 2000.06.13Publication Number: 1277941Publication Date: 2000.12.27Priority Information: International: C01G23/07Applicant(s) Name: Huadong Science and Engineering Univ.Address: Inventor(s) Name: Li Chunzhong;Cong Dezi;Lu ZhiminPatent Agency Code: 31203Patent Agent: luo dachenAbstract The present invention relates to a titanium white oxidation reactor. Jet flow holes with different diameters or different structures are set up on the titanium… Read More »

Catalyst for preparing cis-anhydride by n-butane oxidation and preparation method thereof

Application Number: 00124999Application Date: 2000.09.29Publication Number: 1345630Publication Date: 2002.04.24Priority Information: International: B01J27/198Applicant(s) Name: China Petrochemical Corp.Address: Inventor(s) Name: Yang Linsong;Qiao Zhiping;Ren JianyinPatent Agency Code: 11218Patent Agent: wei qiangwenAbstract The present invention relates to a catalyst for preparing cis-butenedioic anhydrode by utilizing n-butane oxidation and its preparation method. It is made up by using N2O5, H3PO4,… Read More »

Catalyst for preparing benzene diphenol by means of oxidation of phenol

Application Number: 00116532Application Date: 2000.06.15Publication Number: 1328873Publication Date: 2002.01.02Priority Information: International: B01J23/745;B01J23/78;B01J23/80;B01J23/86Applicant(s) Name: China Petro-Chemical Corp.Address: Inventor(s) Name: Gao Huanxini;Cao Jing;Qian KunPatent Agency Code: 31102Patent Agent: zhang huimengAbstract The present invention relates to a catalyst for preparing phenylene-diphenol by oxidation of phenol, and mainly is aimed at overcoming the defects of low conversion rate of… Read More »

Catalyst for oxidation of paraffine

Application Number: 00126383Application Date: 2000.09.12Publication Number: 1287879Publication Date: 2001.03.21Priority Information: 1999/9/15 US 60/154,160International: B01J21/06;C07B33/00Applicant(s) Name: Rohm & Haas Co.Address: Inventor(s) Name: S. Han;D.H.N. Ley;N.N. McNellPatent Agency Code: 11038Patent Agent: chen jizhuangAbstract A catalyst useful for the gas phase oxidation of alkanes to unsaturated aldehydes or carboxylic acids is disclosed. Processes for preparing the catalyst and… Read More »

Catalyst for preparing benzene diphenol by means of direct oxidation of phenol

Application Number: 00116537Application Date: 2000.06.15Publication Number: 1328872Publication Date: 2002.01.02Priority Information: International: B01J23/72;B01J23/86Applicant(s) Name: China Petro-Chemical Corp.Address: Inventor(s) Name: Gao Huanxin;Cao Jing;Qian KunPatent Agency Code: 31102Patent Agent: zhang huimengAbstract The present invention relates to a catalyst for preparing phenylene-diphenol by means of direct oxidation of phenol, and is mainly aimed at overcoming the defects of low… Read More »

Method for raising cyclohexane oxidation production capacity and its equipment

Application Number: 00126697Application Date: 2000.11.17Publication Number: 1354163Publication Date: 2002.06.19Priority Information: International: C07C45/28;C07C49/403Applicant(s) Name: Baling Branch Company, China Petro-Chemical CorporationAddress: Inventor(s) Name: Cheng Liquan;Liu Xiaoqin;Zhu ZehuaPatent Agency Code: 00000Patent Agent: Abstract The present invention relates to a method for raising cyclohexane oxidation production capacity and its equipment. It is characterized by that in the cyclohexane oxidation… Read More »

Process for preparing catalyst used in multi-phase catalytic oxidation of alkali lignin

Application Number: 00117349Application Date: 2000.08.16Publication Number: 1280881Publication Date: 2001.01.24Priority Information: International: B01J29/06;C01B39/02Applicant(s) Name: Huanan Agricultural UnivAddress: Inventor(s) Name: Zhou Qiang;Chen ZhonghaoPatent Agency Code: 44201Patent Agent: wu hongdaAbstract A catalyst for multi-phase catalytic oxidization of alkali lignin is prepared through preparing Si-Al gel, crystallizing, washing, baking 1 steam treating, calcining, exchanging cations, washing, baking and calcining.… Read More »

Oxidation process for producing quinacridineone pigment

Application Number: 00126954Application Date: 2000.09.06Publication Number: 1287137Publication Date: 2001.03.14Priority Information: 1999/9/7 US 60/152706International: C09B48/00Applicant(s) Name: Ciba Specials Chemicals Holding Inc.Address: Inventor(s) Name: S.B. HendyPatent Agency Code: 72001Patent Agent: zhang yuanzhongAbstract A process for preparing an unsubstituted or substituted quinacridone of the formula or a solid solution of quinacridones of the formula (I), wherein X and… Read More »

V-P-O catalyst for preparing cis-anhydride by selective oxidation of n-butane and its preparing process

Application Number: 00112288Application Date: 2000.05.17Publication Number: 1282631Publication Date: 2001.02.07Priority Information: International: B01J27/199Applicant(s) Name: China Petro-Chemical Group Co.Address: Inventor(s) Name: Ji Weijie;Xu Lijun;Yan QijiePatent Agency Code: 32204Patent Agent: huang jiadongAbstract A V-P-O catalyst containing Zr, Mo and Zn has the atom ratio of 1:(1-1.5):(0.02-0.06):(0.02-0.06):(0.02-0.06) for V:P:Zr:Mo:Zn. Its advantages are very high selectivity and higher transform rate.… Read More »

Oxidation preventive and its prep.

Application Number: 00117947Application Date: 2000.04.18Publication Number: 1318540Publication Date: 2001.10.24Priority Information: International: C07C319/14;C07C333/16;C09K15/14Applicant(s) Name: Kumho Monsanto Co., Ltd.Address: Inventor(s) Name: Y.G. Shemorovetch;Lim Seung-Gyo;Chon Jae-HyoPatent Agency Code: 11038Patent Agent: guo jianxinAbstract The present invention discloses one novel antioxidant and its production process. The antioxidant of the present invention is alkylthiomethyl substituted phenol obtained through the reaction of… Read More »

Process for preparing tawny agent by K3Fe(CN)6 oxidation

Application Number: 00112566Application Date: 2000.09.22Publication Number: 1345899Publication Date: 2002.04.24Priority Information: International: C09B61/00Applicant(s) Name: Auhui Agricultural Univ.Address: Inventor(s) Name: Wan Xiaochun;Li Daxiang;Xiao WeixiangPatent Agency Code: 34101Patent Agent: yu chengdunAbstract The method for preparing tea colour matter is includes the following steps: chemical oxidant K3Fe (CN)6 is used to oxidate tea-polyphenol substance being in green tea, lots… Read More »

Preparation method of supersaturated oxidation liquid

Application Number: 00118457Application Date: 2000.06.29Publication Number: 1280796Publication Date: 2001.01.24Priority Information: 1999/6/30 US 09/345099International: A23L2/38;A23L2/54Applicant(s) Name: Praxair Technology, Inc.Address: Inventor(s) Name: A. T. Y. Cheng;T. M. Louis;R. S. PlanchkPatent Agency Code: 72001Patent Agent: ma chongdeAbstract This invention relates to a method of making supersaturated oxygenated liquid which comprises introducing a high oxygen content gas to an… Read More »

Catalyst for synthesizing methyl carbonate by methanol liquid phase oxidation oxonation

Application Number: 00113091Application Date: 2000.07.06Publication Number: 1333086Publication Date: 2002.01.30Priority Information: International: B01J31/22;C07C68/00Applicant(s) Name: Chengdu Inst. of Organic Chemistry, Chinese Academy of SciencesAddress: Inventor(s) Name: Wang Gongying;Wang Yue;Huang TaoPatent Agency Code: 00000Patent Agent: Abstract The present invention relates to a new-type catalyst for methyl alcohol liquid phase oxidation and oxonation to synthesize methyl carbonate. Said catalyst… Read More »

Keratin-fiber oxidation dyeing composition and dyeing method using same

Application Number: 00118697Application Date: 2000.06.20Publication Number: 1278427Publication Date: 2001.01.03Priority Information: 1999/6/21 FR 99/07828International: A61K7/13Applicant(s) Name: L'Oreal Co.Address: Inventor(s) Name: G. Puloss;A. RaglangPatent Agency Code: 72001Patent Agent: zhang yuanzhongAbstract A ready-to-use composition for the oxidation dyeing of keratin fibers, and, in particular, human keratin fibers, such as the hair, having at least one oxidation dye, at… Read More »

Catalytic oxidation process of alkane and naphthene hydrocarbon

Application Number: 00113225Application Date: 2000.01.17Publication Number: 1269343Publication Date: 2000.10.11Priority Information: International: C07C27/14Applicant(s) Name: Guo CanchengAddress: Inventor(s) Name: Guo Cancheng;Liu Qiang;Zhang XiaobingPatent Agency Code: 00000Patent Agent: Abstract The present invention uses single-metal porphyrin or mu-oxo bimetal porphyrin as main catalyst, uses transition metal salt or oxide as co-catalyst or uses mu-oxo bimetal porphyrin as single catalyst,… Read More »

Platinum based alloy for ammonia oxidation catalyst and the catalyst net made therefrom

Application Number: 00122339Application Date: 2000.08.25Publication Number: 1339335Publication Date: 2002.03.13Priority Information: International: B01J23/62;C01B21/26Applicant(s) Name: Guiyan Platinum Industry Co., Ltd.Address: Inventor(s) Name: Sai Xingpeng;Hu Xin;Wen FeiPatent Agency Code: 53100Patent Agent: liu juanyiAbstract The platinum based alloy contains Rh 2-10 wt%, Ce 0.006-0.009 wt% Pd in an optional amount of 0-8 wt% and the rest is Pt. The… Read More »

Process for preparing dimethylether from natural gas via partial oxidation by air or oxygen-enriched air to make gas

Application Number: 00110261Application Date: 2000.03.29Publication Number: 1315315Publication Date: 2001.10.03Priority Information: International: C07C41/01;C07C43/04Applicant(s) Name: Dalian Inst of Chemicophysics, Chinese Academy of SciencesAddress: Inventor(s) Name: Li Wenzhao;Xu Hengyong;Liu ZhongminPatent Agency Code: 21002Patent Agent: zhang chenAbstract A process for preparing dimethylether includes such steps as catalytic partial oxidization of natural gas with air or oxygen-enriched air to obtain… Read More »

Metal oxide catalyst for clearing halogenated aromatic through catalytic oxidation

Application Number: 00110236Application Date: 2000.03.22Publication Number: 1314206Publication Date: 2001.09.26Priority Information: International: B01D53/86;B01J23/888Applicant(s) Name: Dalian Inst. of Chemical Physics, Chinese Academy of SciencesAddress: Inventor(s) Name: Li Can;Liu Yan;Wei ZhaobinPatent Agency Code: 21002Patent Agent: zhang chenAbstract The metal oxide catalyst consists of carrier and active component, the carrier is one or several kinds selected from Al2O3, SiO2,… Read More »

Fluidized bed process for producing nitrogen-contg. synthesis gas by air partial oxidation of methane

Application Number: 00110061Application Date: 2000.01.26Publication Number: 1306939Publication Date: 2001.08.08Priority Information: International: C01B3/36;C01B3/40Applicant(s) Name: Dalian Inst. of Chemical Physics, Chinese Academy of SciencesAddress: Inventor(s) Name: Ji Yaying;Xu Hengyong;Li WenzhaoPatent Agency Code: 21002Patent Agent: zhang chenAbstract Feedstock gases including methane, natural gas or refinery gas and air or oxygen-riched air are converted into nitrogen containing synthetic gas… Read More »

Catalyst for oxidation and reformation of methanol

Application Number: 00110041Application Date: 2000.01.19Publication Number: 1305868Publication Date: 2001.08.01Priority Information: International: B01J23/16;B01J23/74;B01J23/76;B01J37/00Applicant(s) Name: Dalian Inst of Chemicophysics, Chinese Academy of SciencesAddress: Inventor(s) Name: Wu Diyong;Wang Shudong;Hong XuelunPatent Agency Code: 21002Patent Agent: zhang chenAbstract A catalyst for oxidizing and reforming methanol is composed of ZnO as primary active component (50-80 Wt.%) and the oxides of one… Read More »

Copper-free run-noble-metal catalyst for preparing hydrogen by oxidation and reformation of methanol

Application Number: 00110040Application Date: 2000.01.19Publication Number: 1305867Publication Date: 2001.08.01Priority Information: International: B01J23/16;B01J23/74;B01J23/76Applicant(s) Name: Dalian Inst of Chemicophysics, Chinese Academy of SciencesAddress: Inventor(s) Name: Hong Xuelun;Wu Diyong;Wang ShudongPatent Agency Code: 21002Patent Agent: zhang chenAbstract A copper-free non-noble-metal catalyst for preparing hydrogen by oxidizing and reforming methoanol is composed of primary component which is two metals chosen… Read More »

Process for extracting cerium by oxydol oxidation method

Application Number: 00108521Application Date: 2000.04.30Publication Number: 1275627Publication Date: 2000.12.06Priority Information: International: C22B3/10Applicant(s) Name: Neimonggu Baogang High Sciences and Tech. Co., Ltd.Address: Inventor(s) Name: Bai Wenping;Cao ShengbiaoPatent Agency Code: 15101Patent Agent: su aihuaAbstract A cerium-extracting process by using oxidation with hydrogen peroxide is characterized by that it uses hydrogen peroxide as oxidant to extract cerium from… Read More »