Invention Grant
US4559160A Highly stable dichlorobenzidine dihydrochloride slurry and a method for
preparing such
失效
高度稳定的二氯联苯胺二盐酸盐浆料及其制备方法
- Patent Title: Highly stable dichlorobenzidine dihydrochloride slurry and a method for preparing such
- Patent Title (中): 高度稳定的二氯联苯胺二盐酸盐浆料及其制备方法
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Application No.: US578550Application Date: 1984-02-09
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Publication No.: US4559160APublication Date: 1985-12-17
- Inventor: Steven C. Schultz
- Applicant: Steven C. Schultz
- Applicant Address: MI Muskegon
- Assignee: Bofors Nobel, Inc.
- Current Assignee: Bofors Nobel, Inc.
- Current Assignee Address: MI Muskegon
- Main IPC: C07C209/90
- IPC: C07C209/90 ; C09K3/00 ; B01J13/00 ; C09D11/00
Abstract:
A dichlorobenzidine dihydrochloride (DCB) slurry is produced by adding DCB to a dilute mineral acid carrier composed of hydrochloric acid, sulfuric acid or phosphoric acid, by maintaining the DCB concentration within the range such that the diamine amount constitutes from about 35% to about 50% by weight, and by blending the slurry with a high shear device in order to break up any clumps of DCB and to reduce the size of the individual particles of DCB. The resulting slurry is very fluid, yet has an extremely low solids settling rate.
Public/Granted literature
- US5874457A Imidazolylalkyl derivatives of imidazo�1,5-a!indol-3-one Public/Granted day:1999-02-23
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