首页 > 专利信息

PROCESS FOR PREPARING A TRANSITION METAL-SILICATE CATALYST

申请公布号:DE3480382(D1)

申请号:DE19843480382

申请日期:1984.12.04

申请公布日期:1989.12.14

申请人:
UNILEVER NV;UNILEVER PLC

发明人:LOK, CORNELIS MARTINUS;GANGULI, KESHAB LAL;NOOTENBOOM, PETER

分类号:C07C51/36;B01J21/08;B01J21/16;B01J23/00;B01J23/72;B01J23/74;B01J23/75;B01J23/755;B01J37/03;C07B61/00;C07C51/00;C07C67/00;C07C209/00;C07C209/48;C11C3/12;(IPC1-7):B01J23/74;C07C85/12

主分类号:C07C51/36

摘要:The invention provides a process for the preparation of a transition metal-silicate catalyst in which an insoluble, basic compound of a transition metal having an atomic number between 26 and 30 (in particular nickel which has an atomic number of 28) is rapidly precipitated with an alkaline precipitation agent from an aqueous solution of such a metal salt, as a suspension, which precipitate is allowed to mature for a longer period in a suspended form, and, after the transition metal ions have been practically completely precipitated, soluble silicate is added to the suspension, after which the solids are separated from the liquid, optionally washed, dried and reduced.

专利推荐

Firearm hammer with pivoting cocking spur

Automotive glass-setting tool

Furniture hinge

Joint hinge, particularly for glass swinging doors

Vacuum cleaner with modular clutch assembly

Rolling foldout cabinet bed

Weight distribution and support device and system for armor vests

Nailer device

Aqua-avian exhibit

Hollow fiber membrane for a filter

Golf training device

Mattress bed cushion

Channel configuration in a wireless network

Defragmentation method for a machine-readable storage device

Front fork

Systems and methods for information security using one-time pad

Automating cloud service reconnections

Enabling storage of active state in internal storage of processor rather than in SMRAM upon entry to system management mode

Dynamic look-ahead extent migration for tiered storage architectures

Methods, systems, and computer program products for obtaining best execution of orders to buy or sell a financial instrument for which a net asset value is periodically calculated