DECLARE @sql NVARCHAR(MAX) = N'';

SELECT @sql += N'
ALTER TABLE ' + QUOTENAME(OBJECT_SCHEMA_NAME(parent_object_id))
    + '.' + QUOTENAME(OBJECT_NAME(parent_object_id)) + 
    ' DROP CONSTRAINT ' + QUOTENAME(name) + ';'
FROM sys.foreign_keys WHERE QUOTENAME(OBJECT_NAME(parent_object_id)) LIKE '%[tblAccount]%'

PRINT @sql;