Zakelijk, Arbeid, Schade
Particulier
the company i work for is closing in 2021 we will receive severance pay. but as i am in my 60's is there another clause where i can claim another payout because it will be very difficult to get anther job?
No, in principle only the "transitievergoeding", unless you made a specific arrangement for a additional severance payment in your employment agreement. Sometimes a social plan applies in case of a reorganisation (or closure of a company). This could also provide for (extra) severance.
You can ask your employer if such a social plan is applicable in your case. I assume that you will be eligible for WW after your employment has ended. You can get in touch with the UWV in this respect. A WW should be requested before the employment agreement ends.