My husband is angry and uncommunicative. Can we still use this process?
It may be more difficult. Collaborative law seems to work best when the two parties recognize they need to get a divorce and are willing to compromise when necessary to move on with dignity and minimum expense.
Yes, contrary to popular belief, collaborative law works well in situations other than parties who work well together. In a collaborative case you would have a mental health professional involved that may be able to help your husband with his anger and communication that you would not otherwise have in a standard litigation case.
The question is whether he will agree to the collaborative process or not.
Contact a collaborative lawyer in your area and meet with them. Perhaps they can refer another collaborative lawyer for your husband.