首页
产品
黄页
商标
征信
会员服务
注册
登录
全部
|
企业名
|
法人/股东/高管
|
品牌/产品
|
地址
|
经营范围
发明名称
Purification of vanillin
摘要
Crude vanillin is purified by supercritical extraction of impurities. The process is especially useful in purifying crude vanillin obtained from paper mill waste liquors. Preferred supercritical extraction fluid is CO2.
申请公布号
US4474994(A)
申请公布日期
1984.10.02
申请号
US19820417314
申请日期
1982.09.13
申请人
MONSANTO COMPANY
发明人
MAKIN, EARLE C.
分类号
B01D11/02;C07C45/80;(IPC1-7):C07C45/78
主分类号
B01D11/02
代理机构
代理人
主权项
地址
您可能感兴趣的专利
LIGHT EMITTING DEVICE STORAGE PACKAGE, LIGHT EMITTING DEVICE AND LIGHTING DEVICE
USER INFORMATION COLLECTION SYSTEM, INFORMATION INPUT TERMINAL, AND PROGRAM
PURCHASE HISTORY MANAGEMENT SERVICE PROVISION SYSTEM, PURCHASE HISTORY MANAGEMENT SERVICE PROVISION METHOD AND PURCHASE HISTORY MANAGEMENT SERVICE PROVISION PROGRAM
WORK SCHEDULE MANAGEMENT METHOD AND MANAGEMENT DEVICE THEREFOR
DEVICE AND METHOD FOR GRASPING ACCESSING PARTY
JOB OFFERING AND JOB SEEKING MATCHING SYSTEM, AND METHOD THEREOF
UNMANNED RECEPTION SYSTEM
PROJECT RELATED PATENT SEARCH SYSTEM, PROJECT RELATED PATENT SEARCH METHOD, AND PROGRAM
TIME INFORMATION RECEIVING SYSTEM AND PROGRAM
DEVICE FOR TRANSMITTING/RECEIVING AND REPRODUCING TIME SERIES INFORMATION ENCODED WITH HIGH EFFICIENCY BY REAL TIME STREAMING
DRIVING CIRCUIT, LED ARRAY DRIVING CIRCUIT, WIRING SUBSTRATE FOR DRIVING CIRCUIT, PRINTING HEAD AND PRINTING APPARATUS
CRIMPING TERMINAL
CONTROL DEVICE OF PERMANENT MAGNET TYPE ELECTRIC MOTOR AND ITS METHOD
MICROWAVE APPLICATOR, PLASMA GENERATER AND PLASMA PROCESSOR
HIGH-FREQUENCY SIGNAL DISTRIBUTING DEVICE AND PRINTED WIRING BOARD
ELECTRIC POWER SUPPLY MECHANISM AND ELECTRONIC TIME PIECE EQUIPPED THEREWITH
ELEMENT FOR ELECTROPHORESIS, AND ELECTROPHORESIS DEVICE
INERTIA SENSOR ELEMENT
METHOD AND APPARATUS FOR DISCHARGING DRAIN
METHOD FOR SYNTHESIZING INCLUSION COMPOUNDS OF HESPERETIN AND NARINGENIN